UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM N-CSR

CERTIFIED SHAREHOLDER REPORT OF REGISTERED

MANAGEMENT INVESTMENT COMPANIES

Investment Company Act file number 811-04254

Legg Mason Partners Income Trust

(Exact name of registrant as specified in charter)

620 Eighth Avenue, 47^th Floor, New York, NY 10018

(Address of principal executive offices) (Zip code)

Marc A. De Oliveira

Franklin Templeton

100 First Stamford Place

Stamford, CT 06902

(Name and address of agent for service)

Registrant’s telephone number, including area code: 877-6LM-FUND/656-3863

Date of fiscal year end: December 31

Date of reporting period: December 31, 2022

ITEM 1. REPORT TO STOCKHOLDERS.

The Annual Report to Stockholders is filed herewith.

Annual Report December 31, 2022

WESTERN ASSET

MORTGAGE TOTAL

RETURN FUND

INVESTMENT PRODUCTS: NOT FDIC INSURED • NO BANK GUARANTEE • MAY LOSE VALUE

What’s inside
Letter from the president	II
Fund overview	1
Fund at a glance	7
Fund expenses	8
Fund performance	10
Schedule of investments	12
Statement of assets and liabilities	33
Statement of operations	35
Statements of changes in net assets	36
Financial highlights	37
Notes to financial statements	43
Report of independent registered public accounting firm	60
Additional information	61
Important tax information	68

Fund objective

The Fund seeks high current return.

Letter from the president

Dear Shareholder,

We are pleased to provide the annual report of Western Asset Mortgage Total Return Fund for the twelve-month reporting period ended December 31, 2022. Please read on for a detailed look at prevailing economic and market conditions during the Fund’s reporting period and to learn how those conditions have affected Fund performance.

As always, we remain committed to providing you with excellent service and a full spectrum of investment choices. We also remain committed to supplementing the support you receive from your financial advisor. One way we accomplish this is through our website, www.franklintempleton.com. Here you can gain immediate access to market and investment information, including:

• Fund prices and performance,

• Market insights and commentaries from our portfolio managers, and

• A host of educational resources.

We look forward to helping you meet your financial goals.

Sincerely,

Jane Trust, CFA

President and Chief Executive Officer

January 31, 2023

II Western Asset Mortgage Total Return Fund

Fund overview

Q. What is the Fund’s investment strategy?

A. The Fund seeks high current return. Under normal circumstances, the Fund invests at least 80% of its assets in mortgage-backed securities (“MBS”). MBS may be issued by U.S. government-sponsored entities such as the Federal National Mortgage Association (“Fannie Mae”) or the Federal Home Loan Mortgage Corporation (“Freddie Mac”) and by agencies of the U.S. government, such as the Government National Mortgage Association (“Ginnie Mae”). MBS represent direct or indirect participations in, or are collateralized by and payable from, mortgage loans secured by real property. These securities may or may not be backed by the full faith and credit of the U.S. government. Even when the U.S. government guarantees principal and interest payments on securities, this guarantee does not apply to losses resulting from declines in the market value of these securities. The Fund may invest in government stripped MBS and other stripped securities. The Fund may invest in securities of any maturity or duration, and the securities may have fixed, floating or variable rates. The Fund may enter into dollar rolls, sometimes referred to as mortgage dollar rolls.

The Fund will not invest more than 25% of its assets in MBS that are not issued or guaranteed by, or comprised of MBS issued or guaranteed by, a U.S. government agency or U.S. government-sponsored entity.

The Fund focuses on securities rated investment grade (that is securities rated in the Baa/ BBB categories or above, or, if unrated, securities that we determined to be of comparable credit quality). The Fund may invest up to 20% of its assets in securities rated below investment grade, or, if unrated, securities that we determined to be below investment grade.

Instead of, and/or in addition to, investing directly in particular securities, the Fund may use instruments such as derivatives, including options, swaps, interest rate swaps, futures contracts, and other synthetic instruments that are intended to provide economic exposure to the securities or the issuer or to be used as a hedging technique. The Fund may use one or more types of these instruments without limit. These instruments are taken into account when determining compliance with the Fund’s 80% policy. The Fund may also engage in a variety of transactions using derivatives in order to change the investment characteristics of its portfolio (such as shortening or lengthening duration) and for other purposes.

At Western Asset Management Company, LLC (“Western Asset”), the Fund’s subadviser, we utilize a fixed income team approach, with decisions derived from interaction among various investment management sector specialists. The sector teams are comprised of Western Asset’s senior portfolio management personnel, research analysts and an in-house economist. Under this team approach, management of client fixed income portfolios will reflect a consensus of interdisciplinary views within the Western Asset organization.

Q. What were the overall market conditions during the Fund’s reporting period?

A. Fixed income markets experienced periods of volatility and fell sharply over the twelve-month reporting period ended December 31, 2022. The market’s decline was driven by a

Western Asset Mortgage Total Return Fund 2022 Annual Report 1

Fund overview (cont’d)

number of factors, including elevated and persistent inflation, aggressive Federal Reserve Board (the “Fed”) monetary policy tightening, the repercussions from the COVID-19 pandemic and its variants, the weakening global economy, and the war in Ukraine.

Short-term U.S. Treasury yields moved sharply higher as the Fed began to aggressively raise interest rates in March 2022 in attempt to rein in inflation. Over the next nine months, the central bank hiked rates an additional six times, bringing the federal funds rate to a range between 4.25% and 4.50% the highest level since 2008. The yield for the two-year Treasury note began the reporting period at 0.73% (the low for the reporting period) and ended the period at 4.41%. The peak of 4.72% took place on November 7, 2022. The yield for the ten-year Treasury note began the reporting period at 1.52% (the low for the reporting period) and ended the period at 3.88%. The peak of 4.25% took place on October 24, 2022.

The overall agency residential MBS market posted a negative return during the reporting period. During the twelve months ended December 31, 2022, the overall agency MBS market, as measured by the Bloomberg U.S. Mortgage-Backed Securities Index (the “Index”)ⁱ, returned -11.81%. Bloomberg Agency Commercial Mortgage-Backed Securities (“CMBS”) Indexⁱⁱ returned -11.29%. Non-Agency Legacy and Credit Risk Transfer (“CRT”) and Residential MBS sectors returned -5.51% and 1.99%, respectively, according to J.P. Morgan. Lastly, the Non-Agency CMBS sector, as measured by Bloomberg Non-Agency CMBS Indexⁱⁱⁱ, returned -10.59%.

Q. How did we respond to these changing market conditions?

A. Agency MBS returns were under pressure throughout the reporting period, as demand from more traditional buyers of MBS (banks, the Fed, and foreign investors) were muted. In the third quarter of 2022, the volatility of agency MBS excess returns picked up dramatically, leading to elevated swings in performance, as participants were forced to reduce exposure amid elevated market volatility and significant macro uncertainty globally.

We remain focused on portfolio construction with underweights to lower coupons in agency MBS versus overweights to higher coupons and an emphasis on security selection. In particular, the Fund has an overweight to specified pools with better carry and convexity profiles, as well as continuing to hold our non-benchmark allocations across agency collateralized mortgage obligations (“CMOs”), CMBS and high quality non-agency sectors for portfolio diversification and better yield opportunities relative to low coupon generic agency MBS, which make up a significant portion in the Index. Additionally, we actively managed the Fund’s exposure to agency pass-throughs versus securities traded on a to-be-announced (“TBA”) basis and more defensive sectors such as fifteen-year MBS and twenty-year MBS.

During the reporting period, we utilized Treasury futures and options, and interest rate swaps to manage the Fund’s duration and yield curve exposure. Overall, the use of these derivatives detracted from performance.

2 Western Asset Mortgage Total Return Fund 2022 Annual Report

Performance review

For the twelve months ended December 31, 2022, Class A shares of Western Asset Mortgage Total Return Fund, excluding sales charges, returned -13.84%. The Fund’s unmanaged benchmark, the Bloomberg U.S. Mortgage-Backed Securities Index, returned -11.81% for the same period. The Lipper U.S. Mortgage Funds Category Average^iv returned -11.10% over the same time frame.

Performance Snapshot as of December 31, 2022 (unaudited)
(excluding sales charges)	6 months			12 months
Western Asset Mortgage Total Return Fund:
Class 11		-5.59	%		-13.60	%
Class A		-5.72	%		-13.84	%
Class C		-6.03	%		-14.42	%
Class C12		-5.98	%		-14.82	%3
Class I		-5.53	%		-13.51	%
Class IS		-5.50	%		-13.51	%
Bloomberg U.S. Mortgage-Backed Securities Index		-3.32	%		-11.81	%
Lipper U.S. Mortgage Funds Category Average		-3.36	%		-11.10	%

The performance shown represents past performance. Past performance is no guarantee of future results and current performance may be higher or lower than the performance shown above. Principal value, investment returns and yields will fluctuate and investors’ shares, when redeemed, may be worth more or less than their original cost. To obtain performance data current to the most recent month-end, please visit our website at www.franklintempleton.com.

All share class returns assume the reinvestment of all distributions at net asset value and the deduction of all Fund expenses. Returns have not been adjusted to include sales charges that may apply or the deduction of taxes that a shareholder would pay on Fund distributions. If sales charges were reflected, the performance quoted would be lower. Performance figures for periods shorter than one year represent cumulative figures and are not annualized.

The 30-Day SEC Yields for the period ended December 31, 2022 for Class 1, Class A, Class C, Class C1, Class I and Class IS shares were 4.19%, 3.84%, 3.36%, 4.05%, 4.32% and 4.36%, respectively. The 30-Day SEC Yield, calculated pursuant to the standard SEC formula, is based on the Fund’s investments over an annualized trailing 30-day period, and not on the distributions paid by the Fund, which may differ.

¹  Class 1 shares of the Fund are closed to all new purchases and incoming exchanges. Investors owning Class 1 shares may continue to maintain their then-current Class 1 shares, but are no longer permitted to add to their Class 1 share positions (excluding reinvestment of dividends and distributions).

²  Class C1 shares are not available for purchase by new or existing investors (except for certain retirement plan programs authorized by the Fund’s distributor). Class C1 shares continue to be available for dividend reinvestment and incoming exchanges.

³  Total return information is based on net asset values calculated for shareholder transactions. Certain adjustments were made to the prior year net assets of the Fund at December 31, 2022 for financial reporting purposes. Accordingly, adjusted total returns have been disclosed in the Financial Highlights and differ from those reported here.

Western Asset Mortgage Total Return Fund 2022 Annual Report 3

Fund overview (cont’d)

Total Annual Operating Expenses (unaudited)

As of the Fund’s current prospectus dated May 1, 2022, as supplemented June 1, 2022, the gross total annual fund operating expense ratios for Class 1, Class A, Class C, Class C1, Class I and Class IS shares were 0.67%, 0.94%, 1.63%, 2.43%, 0.65% and 0.56%, respectively.

Actual expenses may be higher. For example, expenses may be higher than those shown if average net assets decrease. Net assets are more likely to decrease and Fund expense ratios are more likely to increase when markets are volatile.

As a result of expense limitation arrangements, the ratio of total annual fund operating expenses, other than interest, brokerage, taxes, extraordinary expenses and acquired fund fees and expenses, to average net assets will not exceed 1.75% for Class C shares, 1.75% for Class C1 shares, 0.70% for Class I shares and 0.60% for Class IS shares. In addition, the ratio of total annual fund operating expenses for Class 1 shares will not exceed the ratio of total annual fund operating expenses for Class A shares and the ratio of total annual fund operating expenses for Class IS shares will not exceed the ratio of total annual fund operating expenses for Class I shares. Total annual fund operating expenses, after waiving fees and/or reimbursing expenses, exceed the expense limitation (“expense cap”) for Class C1 shares as a result of acquired fund fees and expenses. These expense limitation arrangements cannot be terminated prior to December 31, 2024 without the Board of Trustees’ consent. In addition, the manager has agreed to waive the Fund’s management fee to an extent sufficient to offset the net management fee payable in connection with any investment in an affiliated money market fund. This management fee waiver is not subject to the recapture provision discussed below.

The manager is permitted to recapture amounts waived and/or reimbursed to a class within two years after the fiscal year in which the manager earned the fee or incurred the expense if the class’ total annual fund operating expenses have fallen to a level below the expense cap in effect at the time the fees were earned, or the expenses incurred. In no case will the manager recapture any amount that would result, on any particular business day of the Fund, in the class’ total annual fund operating expenses exceeding the expense cap or any other lower limit then in effect.

Q. What were the leading contributors to performance?

A. The Fund’s allocation to non-agency residential mortgage-backed securities (“NARMBS”) was the largest contributor to relative performance during the reporting period, as CRT outperformed agency MBS along with both legacy and reperforming loan NARMBS.

Non-agency CMBS was the second largest contributor to returns during the reporting period. Risks remained in lower tier assets with weaker sponsors in areas with poor demographic trends. We favored deals secured by high quality class A properties backed with strong equity sponsors, which we believe will perform over the long term. We continued to maintain an allocation to high quality non-agency CMBS in the portfolio.

Q. What were the leading detractors from performance?

A. Duration was the largest detractor from performance during the reporting period, particularly an overweight positioning to the 30-year duration relative to the benchmark. Agency MBS excess returns were under pressure during the reporting period. Through the

4 Western Asset Mortgage Total Return Fund 2022 Annual Report

first half of 2022, the Fund benefited from carry and better relative returns from its allocations to high quality non-agency sectors and non-benchmark allocations to agency CMO and agency CMBS, in spite of the drag coming from the overweight duration positioning relative to the benchmark.

Thank you for your investment in Western Asset Mortgage Total Return Fund. As always, we appreciate that you have chosen us to manage your assets and we remain focused on achieving the Fund’s investment goals.

Sincerely,

Western Asset Management Company, LLC

January 17, 2023

RISKS: Fixed income securities are subject to interest rate, credit and market risks. As interest rates rise, bond prices fall, reducing the value of the Fund’s share price. To the extent that the Fund invests in asset-backed, mortgage-backed or mortgage-related securities, its exposure to prepayment and extension risks may be greater than investments in other fixed income securities. High yield (“junk”) bonds are generally subject to greater credit risks than higher-grade bonds. The U.S. government guarantee of principal and interest payments applies only to underlying securities in the Fund’s portfolio, not the Fund’s shares. Please note that the Fund’s shares are not guaranteed by the U.S. government or its agencies. The Fund may use derivatives, such as options and futures, which can be illiquid, may disproportionately increase losses, and have a potentially large impact on Fund performance. The use of leverage may increase volatility and possibility of loss. Please see the Fund’s prospectus for a more complete discussion of these and other risks and the Fund’s investment strategies.

The mention of sector breakdowns is for informational purposes only and should not be construed as a recommendation to purchase or sell any securities. The information provided regarding such sectors is not a sufficient basis upon which to make an investment decision. Investors seeking financial advice regarding the appropriateness of investing in any securities or investment strategies discussed should consult their financial professional. Portfolio holdings are subject to change at any time and may not be representative of the portfolio managers’ current or future investments. The Fund’s top three sector holdings (as a percentage of net assets) as of December 31, 2022 were: mortgage-backed securities (45.0%), collateralized mortgage obligations (44.0%) and asset-backed securities (11.2%). The Fund’s portfolio composition is subject to change at any time.

All investments are subject to risk including the possible loss of principal. Past performance is no guarantee of future results. All index performance reflects no deduction for fees, expenses or taxes. Please note that an investor cannot invest directly in an index.

The information provided is not intended to be a forecast of future events, a guarantee of future results or investment advice. Views expressed may differ from those of the firm as a whole.

Western Asset Mortgage Total Return Fund 2022 Annual Report 5

Fund overview (cont’d)

ⁱ  The Bloomberg U.S. Mortgage-Backed Securities Index tracks the performance of fixed-rate agency mortgage-backed pass-through securities guaranteed by the Government National Mortgage Association, Federal National Mortgage Association and Federal Home Loan Mortgage Corporation.

ⁱⁱ  The Bloomberg Agency Commercial Mortgage-Backed Securities (“CMBS”) Index is a fixed-rate, investment-grade benchmark that tracks the market for multi-family CMBS debt issued by U.S. government agencies, Freddie Mac and Fannie Mae.

ⁱⁱⁱ  The Bloomberg Non-Agency CMBS Index is made up of fixed-rate, publicly issued, U.S. dollar-denominated, non-agency collateralized mortgage-backed securities (CMBS). The Index only holds securities with a remaining weighted average life of less than five years.

^iv  Lipper, Inc., a wholly-owned subsidiary of Refinitiv, provides independent insight on global collective investments. Returns are based on the period ended December 31, 2022, including the reinvestment of all distributions, including returns of capital, if any, calculated among the 152 funds for the six-month period and among the 147 funds for the twelve-month period in the Fund’s Lipper category, and excluding sales charges, if any.

6 Western Asset Mortgage Total Return Fund 2022 Annual Report

Fund at a glance† (unaudited)

Investment breakdown (%) as a percent of total investments

† The bar graph above represents the composition of the Fund’s investments as of December 31, 2022 and December 31, 2021 and does not include derivatives, such as written options, futures contracts and swap contracts. The Fund is actively managed. As a result, the composition of the Fund’s investments is subject to change at any time.

‡ Amount represents less than 0.1%.

Western Asset Mortgage Total Return Fund 2022 Annual Report 7

Fund expenses (unaudited)

Example

As a shareholder of the Fund, you may incur two types of costs: (1) transaction costs, including front-end and back-end sales charges (loads) on purchase payments; and (2) ongoing costs, including management fees; service and/or distribution (12b-1) fees; and other Fund expenses. This example is intended to help you understand your ongoing costs (in dollars) of investing in the Fund and to compare these costs with the ongoing costs of investing in other mutual funds.

This example is based on an investment of $1,000 invested on July 1, 2022 and held for the six months ended December 31, 2022.

Actual expenses

The table below titled “Based on actual total return” provides information about actual account values and actual expenses. You may use the information provided in this table, together with the amount you invested, to estimate the expenses that you paid over the period. To estimate the expenses you paid on your account, divide your ending account value by $1,000 (for example, an $8,600 ending account value divided by $1,000 = 8.6), then multiply the result by the number under the heading entitled “Expenses Paid During the Period”.

Hypothetical example for comparison purposes

The table below titled “Based on hypothetical total return” provides information about hypothetical account values and hypothetical expenses based on the actual expense ratio and an assumed rate of return of 5.00% per year before expenses, which is not the Fund’s actual return. The hypothetical account values and expenses may not be used to estimate the actual ending account balance or expenses you paid for the period. You may use the information provided in this table to compare the ongoing costs of investing in the Fund and other funds. To do so, compare the 5.00% hypothetical example relating to the Fund with the 5.00% hypothetical examples that appear in the shareholder reports of the other funds.

Please note that the expenses shown in the table below are meant to highlight your ongoing costs only and do not reflect any transactional costs, such as front-end or back-end sales charges (loads). Therefore, the table is useful in comparing ongoing costs only, and will not help you determine the relative total costs of owning different funds. In addition, if these transaction costs were included, your costs would have been higher.

Based on actual total return1													Based on hypothetical total return1
	Actual Total Return Without Sales Charge2			Beginning Account Value		Ending Account Value		Annualized Expense Ratio			Expenses Paid During the Period3			Hypothetical Annualized Total Return			Beginning Account Value		Ending Account Value		Annualized Expense Ratio			Expenses Paid During the Period3
Class 1		-5.59	%	$	1,000.00	$	944.10		0.69	%	$	3.38	Class 1		5.00	%	$	1,000.00	$	1,021.73		0.69	%	$	3.52
Class A		-5.72			1,000.00		942.80		0.96			4.70	Class A		5.00			1,000.00		1,020.37		0.96			4.89
Class C		-6.03			1,000.00		939.70		1.61			7.87	Class C		5.00			1,000.00		1,017.09		1.61			8.19
Class C1		-5.98			1,000.00		940.20		1.75			8.56	Class C1		5.00			1,000.00		1,016.38		1.75			8.89
Class I		-5.53			1,000.00		944.70		0.63			3.09	Class I		5.00			1,000.00		1,022.03		0.63			3.21
Class IS		-5.50			1,000.00		945.00		0.57			2.79	Class IS		5.00			1,000.00		1,022.33		0.57			2.91

8 Western Asset Mortgage Total Return Fund 2022 Annual Report

¹  For the six months ended December 31, 2022.

²  Assumes the reinvestment of all distributions, including returns of capital, if any, at net asset value and does not reflect the deduction of the applicable sales charge with respect to Class A shares or the applicable contingent deferred sales charge (“CDSC”) with respect to Class C shares and Class C1 shares. Total return is not annualized, as it may not be representative of the total return for the year. Performance figures may reflect compensating balance arrangements, fee waivers and/or expense reimbursements. In the absence of compensating balance arrangements, fee waivers and/or expense reimbursements, the total return would have been lower. Past performance is no guarantee of future results.

³  Expenses (net of compensating balance arrangements, fee waivers and/or expense reimbursements) are equal to each class’ respective annualized expense ratio multiplied by the average account value over the period, multiplied by the number of days in the most recent fiscal half-year (184), then divided by 365.

Western Asset Mortgage Total Return Fund 2022 Annual Report 9

Fund performance (unaudited)

Average annual total returns
Without sales charges1	Class 1			Class A			Class C			Class C12			Class I			Class IS
Twelve Months Ended 12/31/22		-13.60	%		-13.84	%		-14.42	%		-14.82	%3		-13.51	%		-13.51	%
Five Years Ended 12/31/22		-0.54			-0.81			-1.47			-1.42			-0.49			-0.42
Ten Years Ended 12/31/22		1.43			1.16			0.45			0.61			1.46			N/A
Inception* through 12/31/22		—			—			—			—			—			0.31
With sales charges4	Class 1			Class A			Class C			Class C12			Class I			Class IS
Twelve Months Ended 12/31/22		-13.60	%		-17.53	%		-15.25	%		-15.65	%3		-13.51	%		-13.51	%
Five Years Ended 12/31/22		-0.54			-1.67			-1.47			-1.42			-0.49			-0.42
Ten Years Ended 12/31/22		1.43			0.72			0.45			0.61			1.46			N/A
Inception* through 12/31/22		—			—			—			—			—			0.31

Cumulative total returns
Without sales charges1
Class 1 (12/31/12 through 12/31/22)	15.21	%
Class A (12/31/12 through 12/31/22)	12.20
Class C (12/31/12 through 12/31/22)	4.56
Class C1 (12/31/12 through 12/31/22)	6.30
Class I (12/31/12 through 12/31/22)	15.64
Class IS (Inception date of 6/30/16 through 12/31/22)	2.03

All figures represent past performance and are not a guarantee of future results. Investment return and principal value of an investment will fluctuate so that an investor’s shares, when redeemed, may be worth more or less than their original cost. The returns shown do not reflect the deduction of taxes that a shareholder would pay on Fund distributions or the redemption of Fund shares. Performance figures may reflect compensating balance arrangements, fee waivers and/or expense reimbursements. In the absence of compensating balance arrangements, fee waivers and/or expense reimbursements, the total return would have been lower.

¹  Assumes the reinvestment of all distributions, including returns of capital, if any, at net asset value and does not reflect the deduction of the applicable sales charge with respect to Class A shares or the applicable contingent deferred sales charge (“CDSC”) with respect to Class C and Class C1 shares.

²  On August 1, 2012, Class C shares were reclassified as Class C1 shares.

³  Total return information is based on net asset values calculated for shareholder transactions. Certain adjustments were made to the net assets of the Fund at December 31, 2022 for financial reporting purposes. Accordingly, adjusted total returns have been disclosed in the Financial Highlights and differ from those reported here.

⁴  Assumes the reinvestment of all distributions, including returns of capital, if any, at net asset value. In addition, Class A shares reflect the deduction of the maximum initial sales charge of 3.75% (4.25% prior to August 15, 2022). Class C shares and Class C1 shares reflect the deduction of a 1.00% CDSC, which applies if shares are redeemed within one year from purchase payment.

* Inception dates for Class 1, A, C, C1, I and IS shares are September 12, 2000, November 6, 1992, August 1, 2012, February 4, 1993, February 7, 1996 and June 30, 2016, respectively.

10 Western Asset Mortgage Total Return Fund 2022 Annual Report

Historical performance

Value of $10,000 invested in

Class A Shares of Western Asset Mortgage Total Return Fund vs. Bloomberg U.S. Mortgage-Backed Securities Index and Lipper U.S. Mortgage Funds Category Average† — December 2012 - December 2022

All figures represent past performance and are not a guarantee of future results. Investment return and principal value of an investment will fluctuate so that an investor’s shares, when redeemed, may be worth more or less than their original cost. The returns shown do not reflect the deduction of taxes that a shareholder would pay on Fund distributions or the redemption of Fund shares. Performance figures may reflect compensating balance arrangements, fee waivers and/or expense reimbursements. In the absence of compensating balance arrangements, fee waivers and/or expense reimbursements, the total return would have been lower.

† Hypothetical illustration of $10,000 invested in Class A shares of Western Asset Mortgage Total Return Fund on December 31, 2012, assuming the deduction of the maximum initial sales charge of 3.75% (4.25% prior to August 15, 2022) at the time of investment and the reinvestment of all distributions, including returns of capital, if any, at net asset value through December 31, 2022. The hypothetical illustration also assumes a $10,000 investment in the Bloomberg U.S. Mortgage-Backed Securities Index and Lipper U.S. Mortgage Funds Category Average. The Bloomberg U.S. Mortgage-Backed Securities Index (the “Index”) is an unmanaged index composed of agency mortgage-backed pass-through securities, both fixed-rate and hybrid adjustable-rate mortgages, issued by the Government National Mortgage Association, Federal National Mortgage Association and Federal Home Loan Mortgage Corporation. The Index is unmanaged and is not subject to the same management and trading expenses as a mutual fund. Please note that an investor cannot invest directly in an index. The Lipper U.S. Mortgage Funds Category Average is composed of the Fund’s peer group of mutual funds. The performance of the Fund’s other classes may be greater or less than the Class A shares’ performance indicated on this chart, depending on whether greater or lesser sales charges and fees were incurred by shareholders investing in the other classes.

Western Asset Mortgage Total Return Fund 2022 Annual Report 11

Schedule of investments

December 31, 2022

Western Asset Mortgage Total Return Fund

(Percentages shown based on Fund net assets)

Security	Rate			Maturity Date		Face Amount		Value
Mortgage-Backed Securities — 45.0%
FHLMC — 15.6%
Federal Home Loan Mortgage Corp. (FHLMC)		3.500	%		4/1/33-8/1/52	$	11,587,349	$	10,729,886
Federal Home Loan Mortgage Corp. (FHLMC)		3.000	%		2/1/40-5/1/50		2,566,702		2,338,293
Federal Home Loan Mortgage Corp. (FHLMC)		2.500	%		4/1/41-2/1/52		33,703,796		28,941,106
Federal Home Loan Mortgage Corp. (FHLMC)		2.000	%		9/1/41-2/1/52		10,113,694		8,317,503
Federal Home Loan Mortgage Corp. (FHLMC)		4.500	%		7/1/45-7/1/49		465,337		453,292
Federal Home Loan Mortgage Corp. (FHLMC)		3.000	%		2/1/51		983,826		874,857	(a)
Federal Home Loan Mortgage Corp. (FHLMC)		4.000	%		5/1/52		4,312,938		4,072,007
Federal Home Loan Mortgage Corp. (FHLMC) (12 mo. USD LIBOR + 1.619%)		2.878	%		11/1/47		394,049		379,794	(b)
Federal Home Loan Mortgage Corp. (FHLMC) (12 mo. USD LIBOR + 1.621%)		3.091	%		2/1/50		519,741		498,923	(b)
Federal Home Loan Mortgage Corp. (FHLMC) (12 mo. USD LIBOR + 1.628%)		3.009	%		11/1/48		1,891,692		1,793,061	(b)
Federal Home Loan Mortgage Corp. (FHLMC) Gold		4.000	%		12/1/33-3/1/47		6,986,595		6,709,031
Federal Home Loan Mortgage Corp. (FHLMC) Gold		5.500	%		11/1/35		2,694		2,745
Federal Home Loan Mortgage Corp. (FHLMC) Gold		4.500	%		9/1/46-4/1/49		868,842		854,489
Federal Home Loan Mortgage Corp. (FHLMC) Gold		3.000	%		10/1/46		18,030,897		16,250,464
Total FHLMC									82,215,451
FNMA — 18.9%
Federal National Mortgage Association (FNMA)		3.790	%		8/1/28		4,700,000		4,541,387
Federal National Mortgage Association (FNMA)		7.500	%		8/1/29-4/1/32		88,248		89,374
Federal National Mortgage Association (FNMA)		8.500	%		10/1/30		14,618		15,131
Federal National Mortgage Association (FNMA)		3.500	%		12/1/34-3/1/57		13,578,815		12,677,200
Federal National Mortgage Association (FNMA)		2.680	%		1/1/35-2/1/35		700,000		572,283
Federal National Mortgage Association (FNMA)		2.790	%		1/1/35		1,183,277		1,009,797	(b)

See Notes to Financial Statements.

12 Western Asset Mortgage Total Return Fund 2022 Annual Report

Western Asset Mortgage Total Return Fund

(Percentages shown based on Fund net assets)

Security	Rate			Maturity Date		Face Amount		Value
FNMA — continued
Federal National Mortgage Association (FNMA)		3.000	%		7/1/35-1/1/52	$	12,996,946	$	11,848,566
Federal National Mortgage Association (FNMA)		2.500	%		4/1/41-9/1/61		31,615,673		27,094,823
Federal National Mortgage Association (FNMA)		4.000	%		5/1/42-8/1/50		6,616,795		6,346,938
Federal National Mortgage Association (FNMA)		4.500	%		10/1/45-1/1/59		13,561,156		13,342,471
Federal National Mortgage Association (FNMA)		5.000	%		11/1/45-10/1/46		6,535,105		6,636,952
Federal National Mortgage Association (FNMA)		2.000	%		8/1/50-2/1/52		16,696,340		13,723,320
Federal National Mortgage Association (FNMA)		5.500	%		2/1/52		2,300,000		2,305,224	(c)
Total FNMA									100,203,466
GNMA — 10.5%
Government National Mortgage Association (GNMA)		8.500	%		6/15/25		6,271		6,348
Government National Mortgage Association (GNMA)		7.500	%		4/15/29-9/15/31		54,068		54,466
Government National Mortgage Association (GNMA)		6.000	%		11/15/32		234,398		241,294
Government National Mortgage Association (GNMA)		5.000	%		4/15/40-5/15/40		377,042		386,306
Government National Mortgage Association (GNMA)		3.000	%		9/15/42-11/15/42		620,937		569,244
Government National Mortgage Association (GNMA)		3.500	%		6/15/48-6/15/50		2,610,509		2,449,296
Government National Mortgage Association (GNMA)		4.000	%		3/15/50		64,755		61,823
Government National Mortgage Association (GNMA) II		3.500	%		6/20/44-3/20/52		7,514,534		6,997,604
Government National Mortgage Association (GNMA) II		3.000	%		11/20/46-3/20/52		15,261,282		13,732,159
Government National Mortgage Association (GNMA) II		4.000	%		7/20/47-5/20/52		6,002,945		5,790,811
Government National Mortgage Association (GNMA) II		4.500	%		8/20/47-7/20/50		3,688,523		3,624,005
Government National Mortgage Association (GNMA) II		5.500	%		12/20/48-6/20/49		5,379,364		5,500,833

See Notes to Financial Statements.

Western Asset Mortgage Total Return Fund 2022 Annual Report 13

Schedule of investments (cont’d)

December 31, 2022

Western Asset Mortgage Total Return Fund

(Percentages shown based on Fund net assets)

Security	Rate			Maturity Date		Face Amount		Value
GNMA — continued
Government National Mortgage Association (GNMA) II		5.000	%		9/20/49	$	799,904	$	800,973
Government National Mortgage Association (GNMA) II		2.500	%		12/20/50-8/20/52		11,951,419		10,403,080
Government National Mortgage Association (GNMA) II		2.000	%		3/20/51		359,497		289,217
Government National Mortgage Association (GNMA) II		6.000	%		2/1/52-1/20/53		2,800,000		2,839,676	(c)
Government National Mortgage Association (GNMA) II (1 mo. USD LIBOR + 1.783%)		4.862	%		6/20/60		1,901,756		1,932,023	(b)
Government National Mortgage Association (GNMA) II (1 year Treasury Constant Maturity Rate + 1.077%)		5.157	%		8/20/58		28,814		28,814	(b)
Total GNMA									55,707,972
Total Mortgage-Backed Securities (Cost — $259,750,823)									238,126,889
Collateralized Mortgage Obligations (d) — 44.0%
Alternative Loan Trust, 2006-OA9 2A1B (1 mo. USD LIBOR + 0.200%)		4.553	%		7/20/46		81,592		60,612	(b)
AOA Mortgage Trust, 2021-1177 A (1 mo. USD LIBOR + 0.874%)		5.192	%		10/15/38		670,000		622,102	(b)(e)
AREIT Trust, 2021-CRE5 A (1 mo. USD LIBOR + 1.080%)		5.419	%		11/17/38		763,257		735,618	(b)(e)
BAMLL Re-REMIC Trust, 2016-GG10 AJA		5.621	%		8/10/45		2,223,035		581,021	(b)(e)
BANK, 2021-BN32 XA, IO		0.779	%		4/15/54		6,090,287		264,839	(b)
Benchmark Mortgage Trust, 2019-B13 A3		2.701	%		8/15/57		1,440,000		1,239,084
Benchmark Mortgage Trust, 2019-B13 XA, IO		1.122	%		8/15/57		10,071,080		499,330	(b)
Benchmark Mortgage Trust, 2020-B16 A4		2.483	%		2/15/53		1,450,000		1,232,393
Benchmark Mortgage Trust, 2020-IG3 C		3.290	%		9/15/48		2,000,000		1,296,914	(b)(e)
Benchmark Mortgage Trust, 2021-B25 XA, IO		1.102	%		4/15/54		16,850,996		1,057,355	(b)
BHMS Mortgage Trust, 2018-ATLS C (1 mo. USD LIBOR + 1.900%)		6.218	%		7/15/35		2,250,000		2,115,628	(b)(e)
BHMS Mortgage Trust, 2018-MZB (1 mo. USD LIBOR + 6.637%)		10.954	%		7/15/25		1,070,000		913,304	(b)(e)
BPR Trust, 2021-TY C (1 mo. USD LIBOR + 1.700%)		6.018	%		9/15/38		1,060,000		976,950	(b)(e)
BX Trust, 2021-ARIA G (1 mo. USD LIBOR + 3.142%)		7.460	%		10/15/36		1,070,000		960,829	(b)(e)
Credit Suisse First Boston Mortgage Securities Corp., 2002-10 2A1		7.500	%		5/25/32		133,444		133,000
CSMC Trust, 2014-USA C		4.336	%		9/15/37		2,500,000		2,029,189	(e)

See Notes to Financial Statements.

14 Western Asset Mortgage Total Return Fund 2022 Annual Report

Western Asset Mortgage Total Return Fund

(Percentages shown based on Fund net assets)

Security	Rate			Maturity Date		Face Amount		Value
Collateralized Mortgage Obligations (d) — continued
CSMC Trust, 2017-CHOP H (1 mo. USD LIBOR + 7.350%)		11.668	%		7/15/32	$	2,522,000	$	2,293,842	(b)(e)
CSMC Trust, 2017-RPL3 B3		4.408	%		8/1/57		2,951,065		2,647,631	(b)(e)
CSMC Trust, 2019-RIO B (1 mo. USD LIBOR + 7.000%)		11.318	%		2/15/23		7,437,599		7,419,281	(b)(e)
CSMC Trust, 2022-NWPT A (1 mo. Term SOFR + 3.143%)		7.479	%		9/9/24		1,750,000		1,722,087	(b)(e)
Deephaven Residential Mortgage Trust, 2020-2 A3		2.856	%		5/25/65		3,140,000		3,021,661	(e)
Ellington Financial Mortgage Trust, 2020-1 B2		5.113	%		5/25/65		3,570,000		2,895,364	(b)(e)
EverBank Mortgage Loan Trust, 2018-1 AX1, IO		0.077	%		2/25/48		53,996,066		84,239	(b)(e)
EverBank Mortgage Loan Trust, 2018-1 B4		3.577	%		2/25/48		2,370,038		1,795,349	(b)(e)
EverBank Mortgage Loan Trust, 2018-1 B5		3.577	%		2/25/48		2,291,956		1,086,229	(b)(e)
Federal Home Loan Mortgage Corp. (FHLMC) Multifamily PC REMIC Trust, 2019-RR01 X, IO		1.534	%		6/25/28		2,300,000		156,494	(b)
Federal Home Loan Mortgage Corp. (FHLMC) Multifamily Structured Pass-Through Certificates, K132 X1, IO		0.508	%		8/25/31		9,997,960		344,286	(b)
Federal Home Loan Mortgage Corp. (FHLMC) Multifamily Structured Pass-Through Certificates, K141 X1, IO		0.305	%		2/25/32		34,196,973		802,059	(b)
Federal Home Loan Mortgage Corp. (FHLMC) Multifamily Structured Pass-Through Certificates, K142 X1, IO		0.297	%		3/25/32		17,095,269		388,752	(b)
Federal Home Loan Mortgage Corp. (FHLMC) Multifamily Structured Pass-Through Certificates, K143 X1, IO		0.342	%		4/25/55		66,466,023		1,760,884	(b)
Federal Home Loan Mortgage Corp. (FHLMC) Multifamily Structured Pass-Through Certificates, K148 X1, IO		0.250	%		7/25/32		20,095,920		440,332	(b)
Federal Home Loan Mortgage Corp. (FHLMC) Multifamily Structured Pass-Through Certificates, K742 X1, IO		0.779	%		3/25/28		6,196,287		173,414	(b)
Federal Home Loan Mortgage Corp. (FHLMC) Multifamily Structured Pass-Through Certificates, K1510 X1, IO		0.482	%		1/25/34		39,951,543		1,489,461	(b)
Federal Home Loan Mortgage Corp. (FHLMC) Multifamily Structured Pass-Through Certificates, K1516 X1, IO		1.511	%		5/25/35		4,349,684		520,144	(b)

See Notes to Financial Statements.

Western Asset Mortgage Total Return Fund 2022 Annual Report 15

Schedule of investments (cont’d)

December 31, 2022

Western Asset Mortgage Total Return Fund

(Percentages shown based on Fund net assets)

Security	Rate			Maturity Date		Face Amount		Value
Collateralized Mortgage Obligations (d) — continued
Federal Home Loan Mortgage Corp. (FHLMC) Multifamily Structured Pass-Through Certificates, K1520 X1, IO		0.472	%		2/25/36	$	14,968,737	$	611,141	(b)
Federal Home Loan Mortgage Corp. (FHLMC) Multifamily Structured Pass-Through Certificates, KG06 X1, IO		0.532	%		10/25/31		14,691,338		526,236	(b)
Federal Home Loan Mortgage Corp. (FHLMC) Reference REMIC, R007 ZA		6.000	%		5/15/36		378,868		389,024
Federal Home Loan Mortgage Corp. (FHLMC) REMIC, 2525 AM		4.500	%		4/15/32		51,647		50,937
Federal Home Loan Mortgage Corp. (FHLMC) REMIC, 3027 AS, IO (-1.000 x 1 mo. USD LIBOR + 6.150%)		1.832	%		5/15/29		20,524		689	(b)
Federal Home Loan Mortgage Corp. (FHLMC) REMIC, 3265 SB, IO (-1.000 x 1 mo. USD LIBOR + 6.140%)		1.822	%		1/15/37		28,526		1,948	(b)
Federal Home Loan Mortgage Corp. (FHLMC) REMIC, 3397 GS, IO (-1.000 x 1 mo. USD LIBOR + 7.000%)		2.682	%		12/15/37		273,325		27,298	(b)
Federal Home Loan Mortgage Corp. (FHLMC) REMIC, 3947 SG, IO (-1.000 x 1 mo. USD LIBOR + 5.950%)		1.632	%		10/15/41		236,069		19,971	(b)
Federal Home Loan Mortgage Corp. (FHLMC) REMIC, 3966 SA, IO (-1.000 x 1 mo. USD LIBOR + 5.900%)		1.582	%		12/15/41		873,214		62,503	(b)
Federal Home Loan Mortgage Corp. (FHLMC) REMIC, 4048 IK, IO		3.000	%		5/15/27		158,498		6,093
Federal Home Loan Mortgage Corp. (FHLMC) REMIC, 4077 TO, PO		0.000	%		5/15/41		1,172,232		954,299
Federal Home Loan Mortgage Corp. (FHLMC) REMIC, 4085 IO, IO		3.000	%		6/15/27		526,487		21,563
Federal Home Loan Mortgage Corp. (FHLMC) REMIC, 4114 LI, IO		3.500	%		10/15/32		1,758,210		185,546
Federal Home Loan Mortgage Corp. (FHLMC) REMIC, 4134 IM, IO, PAC		3.500	%		11/15/42		2,779,668		442,363
Federal Home Loan Mortgage Corp. (FHLMC) REMIC, 4144 GI, IO, PAC-1		3.000	%		12/15/32		1,294,831		96,270
Federal Home Loan Mortgage Corp. (FHLMC) REMIC, 4147 IN, IO		3.500	%		12/15/32		1,767,324		179,800
Federal Home Loan Mortgage Corp. (FHLMC) REMIC, 4170 PI, IO, PAC-1		3.000	%		1/15/33		1,653,482		108,650

See Notes to Financial Statements.

16 Western Asset Mortgage Total Return Fund 2022 Annual Report

Western Asset Mortgage Total Return Fund

(Percentages shown based on Fund net assets)

Security	Rate			Maturity Date		Face Amount		Value
Collateralized Mortgage Obligations (d) — continued
Federal Home Loan Mortgage Corp. (FHLMC) REMIC,4203 PS, IO, PAC (-1.000 x 1 mo. USD LIBOR + 6.250%)		1.932	%		9/15/42	$	559,219	$	40,269	(b)
Federal Home Loan Mortgage Corp. (FHLMC) REMIC, 4210 Z		3.000	%		5/15/43		3,268,103		2,600,650
Federal Home Loan Mortgage Corp. (FHLMC) REMIC, 4403 IG, IO		3.500	%		7/15/32		411,329		15,992
Federal Home Loan Mortgage Corp. (FHLMC) REMIC, 4700 QI, IO		3.500	%		7/15/44		287,940		2,141
Federal Home Loan Mortgage Corp. (FHLMC) REMIC, 4715 JS, IO (-1.000 x 1 mo. USD LIBOR + 6.150%)		1.832	%		8/15/47		1,236,924		148,825	(b)
Federal Home Loan Mortgage Corp. (FHLMC) REMIC, 4759 MI, IO, PAC		4.000	%		9/15/45		522,987		34,554
Federal Home Loan Mortgage Corp. (FHLMC) REMIC,4808 SB, IO (-1.000 x 1 mo. USD LIBOR + 6.200%)		1.882	%		7/15/48		1,293,981		162,291	(b)
Federal Home Loan Mortgage Corp. (FHLMC) REMIC, 4813 CJ		3.000	%		8/15/48		320,536		278,058
Federal Home Loan Mortgage Corp. (FHLMC) REMIC, 4856 IO, IO		5.000	%		1/15/49		1,624,800		296,167
Federal Home Loan Mortgage Corp. (FHLMC) REMIC, 4882 S, IO, PAC (-1.000 x 1 mo. USD LIBOR + 6.050%)		1.732	%		5/15/49		1,784,892		183,048	(b)
Federal Home Loan Mortgage Corp. (FHLMC) REMIC, 4921 SN, IO (-1.000 x 1 mo. USD LIBOR + 6.050%)		1.661	%		10/25/49		3,085,217		315,214	(b)
Federal Home Loan Mortgage Corp. (FHLMC) REMIC, 4931 DZ, PAC		2.500	%		11/25/49		3,269,615		2,274,345
Federal Home Loan Mortgage Corp. (FHLMC) REMIC,4962 SP, IO, PAC (-1.000 x 1 mo. USD LIBOR + 6.050%)		1.661	%		3/25/50		1,722,508		169,629	(b)
Federal Home Loan Mortgage Corp. (FHLMC) REMIC, 4988 AZ		2.000	%		7/25/50		5,886,873		3,595,855
Federal Home Loan Mortgage Corp. (FHLMC) REMIC, 4995 IQ, IO, PAC		2.500	%		7/25/50		2,425,787		355,112
Federal Home Loan Mortgage Corp. (FHLMC) REMIC, 4995 QI, IO, PAC		2.500	%		7/25/50		12,485,666		1,967,837
Federal Home Loan Mortgage Corp. (FHLMC) REMIC, 5040 IB, IO		2.500	%		11/25/50		149,047		22,157

See Notes to Financial Statements.

Western Asset Mortgage Total Return Fund 2022 Annual Report 17

Schedule of investments

December 31, 2022

Western Asset Mortgage Total Return Fund

(Percentages shown based on Fund net assets)

Security	Rate			Maturity Date		Face Amount		Value
Collateralized Mortgage Obligations (d) — continued
Federal Home Loan Mortgage Corp. (FHLMC) REMIC, 5059 IB, IO		2.500	%		1/25/51	$	700,293	$	112,672
Federal Home Loan Mortgage Corp. (FHLMC) REMIC, 4377 UZ		3.000	%		8/15/44		2,618,039		2,079,513
Federal Home Loan Mortgage Corp. (FHLMC) REMIC, 5000 IB, IO		2.500	%		7/25/50		6,266,525		778,121
Federal Home Loan Mortgage Corp. (FHLMC) REMIC, 5000 UI, IO		2.500	%		7/25/50		5,290,713		863,645
Federal Home Loan Mortgage Corp. (FHLMC) REMIC, 5058 IL, IO		2.500	%		1/25/51		2,323,205		363,321
Federal Home Loan Mortgage Corp. (FHLMC) REMIC, 5070 NI, IO		2.000	%		2/25/51		4,815,345		648,518
Federal Home Loan Mortgage Corp. (FHLMC) REMIC, 5078 EI, IO		1.500	%		1/25/51		5,576,725		548,312
Federal Home Loan Mortgage Corp. (FHLMC) REMIC, 5085 IK, IO		2.500	%		3/25/51		18,344,134		2,852,324
Federal Home Loan Mortgage Corp. (FHLMC) REMIC, 5092 IU, IO		2.500	%		2/25/51		8,822,534		1,101,904
Federal Home Loan Mortgage Corp. (FHLMC) REMIC, 5113 NI, IO, PAC		2.500	%		6/25/51		2,651,527		347,549
Federal Home Loan Mortgage Corp. (FHLMC) REMIC, 5134 KI, IO		2.500	%		7/25/48		8,391,275		1,162,761
Federal Home Loan Mortgage Corp. (FHLMC) REMIC, 5135 DI, IO		2.500	%		5/25/48		7,901,540		1,050,395
Federal Home Loan Mortgage Corp. (FHLMC) REMIC, 5149 NI, IO, PAC		2.500	%		1/25/51		1,014,883		137,748
Federal Home Loan Mortgage Corp. (FHLMC) REMIC, 5160 IU, IO		2.500	%		11/25/50		5,584,777		717,372
Federal Home Loan Mortgage Corp. (FHLMC) REMIC, 5169 PW, PAC		2.000	%		9/25/51		4,700,000		3,145,392
Federal Home Loan Mortgage Corp. (FHLMC) REMIC, 5178 CY		2.000	%		1/25/42		4,400,000		2,994,784
Federal Home Loan Mortgage Corp. (FHLMC) REMIC, 5209 EQ		3.000	%		4/25/52		2,800,000		2,127,367
Federal Home Loan Mortgage Corp. (FHLMC) Seasoned Credit Risk Transfer Trust, 2016-1 B, PO		0.000	%		9/25/55		4,408,578		630,099	(e)
Federal Home Loan Mortgage Corp. (FHLMC) Seasoned Credit Risk Transfer Trust, 2016-1 BIO, IO		1.123	%		9/25/55		8,042,978		933,293	(b)(e)

See Notes to Financial Statements.

18 Western Asset Mortgage Total Return Fund 2022 Annual Report

Western Asset Mortgage Total Return Fund

(Percentages shown based on Fund net assets)

Security	Rate			Maturity Date		Face Amount		Value
Collateralized Mortgage Obligations (d) — continued
Federal Home Loan Mortgage Corp. (FHLMC) Seasoned Credit Risk Transfer Trust, 2016-1 XSIO, IO		0.075	%		9/25/55	$	52,075,002	$	229,859	(b)(e)
Federal Home Loan Mortgage Corp. (FHLMC) Seasoned Credit Risk Transfer Trust, 2017-2 B, PO		0.000	%		8/25/56		7,857,930		1,199,557	(e)
Federal Home Loan Mortgage Corp. (FHLMC) Seasoned Credit Risk Transfer Trust, 2017-2 BIO, IO		1.168	%		8/25/56		17,013,692		1,826,365	(b)(e)
Federal Home Loan Mortgage Corp. (FHLMC) Seasoned Credit Risk Transfer Trust, 2017-2 XSIO, IO		0.075	%		8/25/56		323,680,534		1,326,767	(b)(e)
Federal Home Loan Mortgage Corp. (FHLMC) STRIPS, 312 S1, IO (-1.000 x 1 mo. USD LIBOR + 5.950%)		1.632	%		9/15/43		1,198,224		121,448	(b)
Federal Home Loan Mortgage Corp. (FHLMC) STRIPS, 317 PO, PO		0.000	%		11/15/43		2,777,904		2,204,457
Federal Home Loan Mortgage Corp. (FHLMC) STRIPS, 328 S4, IO		0.000	%		2/15/38		287,246		11,243	(b)
Federal Home Loan Mortgage Corp. (FHLMC)
Structured Agency Credit Risk Debt Notes, 2016-DNA2 B (1 mo. USD LIBOR + 10.500%)		14.889	%		10/25/28		2,379,427		2,458,675	(b)
Federal Home Loan Mortgage Corp. (FHLMC) Structured Agency Credit Risk Debt Notes, 2017-DNA1 B2 (1 mo. USD LIBOR + 10.000%)		14.389	%		7/25/29		2,520,701		2,523,135	(b)
Federal Home Loan Mortgage Corp. (FHLMC) Structured Agency Credit Risk Debt Notes, 2017-SPI1 B		4.116	%		9/25/47		1,813,836		1,567,498	(b)(e)
Federal Home Loan Mortgage Corp. (FHLMC) Structured Agency Credit Risk Debt Notes, 2018-HRP1 B2 (1 mo. USD LIBOR + 11.750%)		16.139	%		5/25/43		4,946,932		5,158,492	(b)(e)
Federal National Mortgage Association (FNMA) — CAS, 2016-C04 1B (1 mo. USD LIBOR + 10.250%)		14.639	%		1/25/29		4,595,916		4,798,362	(b)(e)
Federal National Mortgage Association (FNMA) — CAS, 2016-C06 1B (1 mo. USD LIBOR + 9.250%)		13.639	%		4/25/29		3,746,465		3,784,595	(b)(e)
Federal National Mortgage Association (FNMA) — CAS, 2021-R03 1B2 (30 Day Average SOFR + 5.500%)		9.428	%		12/25/41		500,000		427,952	(b)(e)

See Notes to Financial Statements.

Western Asset Mortgage Total Return Fund 2022 Annual Report 19

Schedule of investments (cont’d)

December 31, 2022

Western Asset Mortgage Total Return Fund

(Percentages shown based on Fund net assets)

Security	Rate			Maturity Date		Face Amount		Value
Collateralized Mortgage Obligations (d) — continued
Federal National Mortgage Association (FNMA) ACES, 2019-M11 X1, IO		1.063	%		6/25/29	$	14,952,298	$	753,460	(b)
Federal National Mortgage Association (FNMA) ACES, 2020-M11 IO, IO		1.747	%		1/25/29		6,752,135		558,322	(b)
Federal National Mortgage Association (FNMA) ACES, 2020-M16 X1, IO		0.464	%		4/25/32		41,100,101		1,205,758	(b)
Federal National Mortgage Association (FNMA) ACES, 2020-M24 X1, IO		1.701	%		1/25/37		6,747,348		819,787	(b)
Federal National Mortgage Association (FNMA) ACES, 2020-M31 X2, IO		1.269	%		12/25/32		19,140,885		1,465,922	(b)
Federal National Mortgage Association (FNMA) REMIC, 2003-22 IO, IO		6.000	%		4/25/33		53,209		9,047
Federal National Mortgage Association (FNMA) REMIC, 2009-6 KZ		5.000	%		2/25/49		272,146		266,798
Federal National Mortgage Association (FNMA) REMIC, 2009-59 LB		4.647	%		8/25/39		279,029		278,601	(b)
Federal National Mortgage Association (FNMA) REMIC, 2009-74 TX, PAC		5.000	%		9/25/39		763,808		764,704
Federal National Mortgage Association (FNMA) REMIC, 2010-2 AI, IO		5.500	%		2/25/40		278,019		47,043
Federal National Mortgage Association (FNMA) REMIC, 2010-84 SK, IO (-1.000 x 1 mo. USD LIBOR + 6.560%)		2.171	%		8/25/40		630,215		61,188	(b)
Federal National Mortgage Association (FNMA) REMIC, 2011-59 NZ		5.500	%		7/25/41		153,404		156,119
Federal National Mortgage Association (FNMA) REMIC, 2011-144 PT		12.185	%		1/25/38		252,219		304,027	(b)
Federal National Mortgage Association (FNMA) REMIC, 2012-14 SL, IO (-1.000 x 1 mo. USD LIBOR + 6.550%)		2.161	%		12/25/40		926,011		17,284	(b)
Federal National Mortgage Association (FNMA) REMIC, 2012-28 B		6.500	%		6/25/39		64,901		66,112
Federal National Mortgage Association (FNMA) REMIC, 2012-51 B		7.000	%		5/25/42		179,600		192,017
Federal National Mortgage Association (FNMA) REMIC, 2012-75 NS, IO (-1.000 x 1 mo. USD LIBOR + 6.600%)		2.211	%		7/25/42		1,025,910		116,338	(b)
Federal National Mortgage Association (FNMA) REMIC, 2012-123 BI, IO		3.500	%		11/25/32		876,957		90,555
Federal National Mortgage Association (FNMA) REMIC, 2012-135 AI, IO		3.000	%		12/25/27		779,294		34,870

See Notes to Financial Statements.

20 Western Asset Mortgage Total Return Fund 2022 Annual Report

Western Asset Mortgage Total Return Fund

(Percentages shown based on Fund net assets)

Security	Rate			Maturity Date		Face Amount		Value
Collateralized Mortgage Obligations (d) — continued
Federal National Mortgage Association (FNMA) REMIC, 2012-149 AI, IO		3.000	%		1/25/28	$	1,557,024	$	66,968
Federal National Mortgage Association (FNMA) REMIC, 2013-9 BC		6.500	%		7/25/42		168,329		177,777
Federal National Mortgage Association (FNMA) REMIC, 2013-9 CB		5.500	%		4/25/42		1,398,294		1,421,190
Federal National Mortgage Association (FNMA) REMIC, 2014-47 AI, IO		0.000	%		8/25/44		755,238		32,701	(b)
Federal National Mortgage Association (FNMA) REMIC, 2014-47 IA, IO		0.000	%		8/25/44		1,442,454		51,632	(b)
Federal National Mortgage Association (FNMA) REMIC, 2014-49 KS, IO		0.000	%		8/25/44		1,058,576		46,931	(b)
Federal National Mortgage Association (FNMA) REMIC, 2016-48 IA, IO		4.500	%		6/25/38		6,088,726		905,392
Federal National Mortgage Association (FNMA) REMIC, 2018-3 IO, IO		4.000	%		2/25/48		4,548,327		877,921
Federal National Mortgage Association (FNMA) REMIC, 2019-25 PI, IO		5.000	%		5/25/48		1,188,765		237,905
Federal National Mortgage Association (FNMA) REMIC, 2019-33 ZJ		2.750	%		7/25/49		2,280,653		1,536,109
Federal National Mortgage Association (FNMA) REMIC, 2019-38 SH, IO (-1.000 x 1 mo. USD LIBOR + 6.050%)		2.034	%		7/25/49		4,190,739		403,553	(b)
Federal National Mortgage Association (FNMA) REMIC, 2019-44 SM, IO (-1.000 x 1 mo. USD LIBOR + 6.050%)		1.661	%		8/25/49		2,090,303		275,403	(b)
Federal National Mortgage Association (FNMA) REMIC, 2019-45 BS, IO (-1.000 x 1 mo. USD LIBOR + 6.050%)		1.661	%		8/25/49		2,282,879		248,312	(b)
Federal National Mortgage Association (FNMA) REMIC, 2019-57 NS, IO (-1.000 x 1 mo. USD LIBOR + 6.000%)		1.611	%		10/25/49		1,258,318		139,664	(b)
Federal National Mortgage Association (FNMA) REMIC, 2019-58 HS, IO (-1.000 x 1 mo. USD LIBOR + 6.000%)		1.611	%		10/25/49		1,927,223		187,295	(b)
Federal National Mortgage Association (FNMA) REMIC, 2019-59 SH, IO (-1.000 x 1 mo. USD LIBOR + 6.000%)		1.611	%		10/25/49		4,098,811		430,865	(b)
Federal National Mortgage Association (FNMA) REMIC, 2020-26 SA, IO (-1.000 x 1 mo. USD LIBOR + 5.950%)		1.561	%		5/25/50		1,666,420		173,489	(b)

See Notes to Financial Statements.

Western Asset Mortgage Total Return Fund 2022 Annual Report 21

Schedule of investments (cont’d)

December 31, 2022

Western Asset Mortgage Total Return Fund

(Percentages shown based on Fund net assets)

Security	Rate			Maturity Date		Face Amount		Value
Collateralized Mortgage Obligations (d) — continued
Federal National Mortgage Association (FNMA) REMIC, 2020-47 GZ		2.000	%		7/25/50	$	1,156,350	$	675,632
Federal National Mortgage Association (FNMA) REMIC, 2020-62 BI, IO		2.000	%		9/25/50		1,804,163		230,343
Federal National Mortgage Association (FNMA) REMIC, 2020-67 IH, IO		2.000	%		9/25/50		2,513,694		324,134
Federal National Mortgage Association (FNMA) REMIC, 2020-74 EI, IO		2.500	%		10/25/50		157,262		26,559
Federal National Mortgage Association (FNMA) REMIC, 2020-88 GI, IO		2.500	%		12/25/50		2,097,823		300,988
Federal National Mortgage Association (FNMA) REMIC, 2020-89 DI, IO		2.500	%		12/25/50		1,094,838		162,883
Federal National Mortgage Association (FNMA) REMIC, 2020-93 LI, IO, PAC		2.500	%		1/25/51		5,862,607		867,097
Federal National Mortgage Association (FNMA) REMIC, 2021-42 NI, IO		2.500	%		11/25/48		8,926,948		1,155,085
Federal National Mortgage Association (FNMA) REMIC, 2021-46 BI, IO		2.500	%		12/25/48		5,734,297		765,978
Federal National Mortgage Association (FNMA) REMIC, 2021-49 GI, IO		2.500	%		10/25/48		3,077,635		429,366
Federal National Mortgage Association (FNMA) REMIC, 2021-54 KI, IO		2.500	%		5/25/49		873,294		129,651
Federal National Mortgage Association (FNMA) REMIC, 2021-59 TI, IO		2.500	%		9/25/51		5,889,696		874,558
Federal National Mortgage Association (FNMA) REMIC, 2021-61 KI, IO		2.500	%		4/25/49		1,005,628		147,283
Federal National Mortgage Association (FNMA) REMIC, 2021-85 IN, IO		2.500	%		2/25/50		4,177,407		651,802
Federal National Mortgage Association (FNMA) REMIC, 2021-91 IG, IO		2.500	%		1/25/52		2,232,425		331,310
Federal National Mortgage Association (FNMA) REMIC, 2022-29 KZ		1.500	%		6/25/42		6,657,967		4,552,013
Federal National Mortgage Association (FNMA) STRIPS, 362 6, IO		5.000	%		8/25/35		604,043		85,068
Federal National Mortgage Association (FNMA) STRIPS, 364 13, IO		6.000	%		9/25/35		47,013		7,619
Federal National Mortgage Association (FNMA) STRIPS, 383 18, IO		5.500	%		1/25/38		57,687		10,792
Federal National Mortgage Association (FNMA) STRIPS, 383 20, IO		5.500	%		7/25/37		42,564		7,554

See Notes to Financial Statements.

22 Western Asset Mortgage Total Return Fund 2022 Annual Report

Western Asset Mortgage Total Return Fund

(Percentages shown based on Fund net assets)

Security	Rate			Maturity Date		Face Amount		Value
Collateralized Mortgage Obligations (d) — continued
Federal National Mortgage Association (FNMA) STRIPS, 406 2, IO		4.000	%		2/25/41	$	1,545,482	$	268,694
Federal National Mortgage Association (FNMA) STRIPS, 407 41, IO		6.000	%		1/25/38		32,465		6,647
Federal National Mortgage Association (FNMA) STRIPS, 407 42, IO		6.000	%		1/25/38		25,172		4,480
Federal National Mortgage Association (FNMA) STRIPS, 407 C10, IO		5.000	%		1/25/38		267,129		46,291
Federal National Mortgage Association (FNMA) STRIPS, 417 C5, IO		3.500	%		2/25/43		2,841,143		437,438
Federal National Mortgage Association (FNMA) STRIPS, 418 C15, IO		3.500	%		8/25/43		6,695,745		1,166,662
Government National Mortgage Association, 2022-86 C		2.250	%		10/16/63		800,000		463,394	(b)
Government National Mortgage Association (GNMA), 2004-59 FP (1 mo. USD LIBOR + 0.300%)		4.626	%		8/16/34		398,952		395,871	(b)
Government National Mortgage Association (GNMA), 2004-81 SK, IO (-1.000 x 1 mo. USD LIBOR + 6.200%)		1.874	%		10/16/34		393,766		18,146	(b)
Government National Mortgage Association (GNMA), 2007-17 IB, IO (-1.000 x 1 mo. USD LIBOR + 6.250%)		1.897	%		4/20/37		2,480,884		109,119	(b)
Government National Mortgage Association (GNMA), 2007-45 QB, IO, PAC (-1.000 x 1 mo. USD LIBOR + 6.600%)		2.247	%		7/20/37		389,479		28,591	(b)
Government National Mortgage Association (GNMA), 2009-H01 FA (1 mo. USD LIBOR + 1.150%)		5.503	%		11/20/59		238,670		238,592	(b)
Government National Mortgage Association (GNMA), 2010-4 SI, IO (-1.000 x 1 mo. USD LIBOR + 6.100%)		1.774	%		11/16/34		876,210		27,937	(b)
Government National Mortgage Association (GNMA), 2010-42 BS, IO (-1.000 x 1 mo. USD LIBOR + 6.480%)		2.127	%		4/20/40		4,337		473	(b)
Government National Mortgage Association (GNMA), 2010-59 LB, PAC-1		4.500	%		10/20/39		22,259		22,201
Government National Mortgage Association (GNMA), 2010-59 SM, IO (-1.000 x 1 mo. USD LIBOR + 6.000%)		1.674	%		5/16/40		282,240		14,068	(b)

See Notes to Financial Statements.

Western Asset Mortgage Total Return Fund 2022 Annual Report 23

Schedule of investments (cont’d)

December 31, 2022

Western Asset Mortgage Total Return Fund

(Percentages shown based on Fund net assets)

Security	Rate			Maturity Date		Face Amount		Value
Collateralized Mortgage Obligations (d) — continued
Government National Mortgage Association (GNMA), 2010-85 HS, IO, PAC (-1.000 x 1 mo. USD LIBOR + 6.650%)		2.297	%		1/20/40	$	2,342	$	27	(b)
Government National Mortgage Association (GNMA), 2010-H02 FA (1 mo. USD LIBOR + 0.680%)		4.735	%		2/20/60		1,031,711		1,024,901	(b)
Government National Mortgage Association (GNMA), 2011-40 EI, IO		4.000	%		12/16/25		31,182		861
Government National Mortgage Association (GNMA), 2011-79 KS, IO (-1.000 x 1 mo. USD LIBOR + 5.400%)		1.047	%		5/20/41		1,083,341		78,124	(b)
Government National Mortgage Association (GNMA), 2011-113 PQ		5.000	%		6/20/39		817,844		817,290
Government National Mortgage Association (GNMA), 2011-142 IO, IO		0.000	%		9/16/46		3,009,137		30	(b)
Government National Mortgage Association (GNMA), 2011-146 KS, IO (-1.000 x 1 mo. USD LIBOR + 6.100%)		1.774	%		11/16/41		866,936		78,771	(b)
Government National Mortgage Association (GNMA), 2012-13 SK, IO (-1.000 x 1 mo. USD LIBOR + 6.650%)		2.297	%		2/20/41		326,098		18,154	(b)
Government National Mortgage Association (GNMA), 2012-70 IO, IO		0.093	%		8/16/52		955,736		554	(b)
Government National Mortgage Association (GNMA), 2013-90 PI, IO, PAC-1		3.500	%		10/20/41		2,291,759		144,741
Government National Mortgage Association (GNMA), 2013-142 IO, IO		0.957	%		9/16/51		2,393,917		43,368	(b)
Government National Mortgage Association (GNMA), 2013-163 IO, IO		1.018	%		2/16/46		2,460,863		45,286	(b)
Government National Mortgage Association (GNMA), 2014-2 CI, IO		4.500	%		1/20/44		902,730		178,858
Government National Mortgage Association (GNMA), 2014-16 IO, IO		0.465	%		6/16/55		3,090,707		45,550	(b)
Government National Mortgage Association (GNMA), 2014-50 IO, IO		0.629	%		9/16/55		1,044,106		26,841	(b)
Government National Mortgage Association (GNMA), 2014-60 SA, IO (-1.000 x 1 mo. USD LIBOR + 6.100%)		1.774	%		4/16/44		2,552,355		203,484	(b)
Government National Mortgage Association (GNMA), 2014-91 SB, IO (-1.000 x 1 mo. USD LIBOR + 5.600%)		1.274	%		6/16/44		1,025,709		77,167	(b)

See Notes to Financial Statements.

24 Western Asset Mortgage Total Return Fund 2022 Annual Report

Western Asset Mortgage Total Return Fund

(Percentages shown based on Fund net assets)

Security	Rate			Maturity Date		Face Amount		Value
Collateralized Mortgage Obligations (d) — continued
Government National Mortgage Association (GNMA), 2014-118 HS, IO (-1.000 x 1 mo. USD LIBOR + 6.200%)		1.847	%		8/20/44	$	552,985	$	58,869	(b)
Government National Mortgage Association (GNMA), 2015-167 OI, IO		4.000	%		4/16/45		2,143,809		383,501
Government National Mortgage Association (GNMA), 2016-51 NS, IO (-1.000 x 1 mo. USD LIBOR + 6.050%)		1.697	%		4/20/46		1,725,721		165,985	(b)
Government National Mortgage Association (GNMA), 2016-87 IO, IO		0.664	%		8/16/58		2,961,277		83,783	(b)
Government National Mortgage Association (GNMA), 2016-156 PB		2.000	%		11/20/46		5,417,124		3,784,166
Government National Mortgage Association (GNMA), 2017-19 SE, IO (-1.000 x 1 mo. USD LIBOR + 6.150%)		1.824	%		2/16/47		2,516,169		242,671	(b)
Government National Mortgage Association (GNMA), 2017-21 IO, IO		0.633	%		10/16/58		8,193,962		291,976	(b)
Government National Mortgage Association (GNMA), 2017-26 IQ, IO		5.000	%		2/20/40		3,832,615		796,768
Government National Mortgage Association (GNMA), 2017-41 IO, IO		0.601	%		7/16/58		525,393		15,213	(b)
Government National Mortgage Association (GNMA), 2017-190 IO, IO		0.539	%		3/16/60		1,453,669		54,070	(b)
Government National Mortgage Association (GNMA), 2018-125 HS, IO (-1.000 x 1 mo. USD LIBOR + 6.250%)		1.897	%		9/20/48		1,515,279		124,888	(b)
Government National Mortgage Association (GNMA), 2018-134 SM, IO (-1.000 x 1 mo. USD LIBOR + 6.200%)		1.847	%		10/20/48		2,385,652		201,762	(b)
Government National Mortgage Association (GNMA), 2019-85 LS, IO (-1.000 x 1 mo. USD LIBOR + 3.290%)		0.000	%		7/20/49		17,557,394		426,810	(b)
Government National Mortgage Association (GNMA), 2020-33 SD, IO (-1.000 x 1 mo. USD LIBOR + 6.150%)		1.797	%		7/20/47		971,060		95,726	(b)
Government National Mortgage Association (GNMA), 2020-36 GS, IO (-1.000 x 1 mo. USD LIBOR + 6.100%)		1.747	%		3/20/50		5,674,196		706,669	(b)
Government National Mortgage Association (GNMA), 2020-47 MI, IO, PAC		3.500	%		4/20/50		542,686		87,305

See Notes to Financial Statements.

Western Asset Mortgage Total Return Fund 2022 Annual Report 25

Schedule of investments (cont’d)

December 31, 2022

Western Asset Mortgage Total Return Fund

(Percentages shown based on Fund net assets)

Security	Rate			Maturity Date		Face Amount		Value
Collateralized Mortgage Obligations (d) — continued
Government National Mortgage Association (GNMA), 2020-47 NI, IO, PAC		3.500	%		4/20/50	$	221,913	$	36,556
Government National Mortgage Association (GNMA), 2020-61 CI, IO, PAC		4.000	%		3/20/50		1,283,470		200,421
Government National Mortgage Association (GNMA), 2020-85 CI, IO, PAC		3.500	%		4/20/50		1,349,101		199,407
Government National Mortgage Association (GNMA), 2020-109 AI, IO		0.840	%		5/16/60		2,515,757		151,018	(b)
Government National Mortgage Association (GNMA), 2020-116 GI, IO		2.500	%		8/20/50		6,736,442		1,002,606
Government National Mortgage Association (GNMA), 2020-122 IM, IO		2.500	%		8/20/50		2,470,923		363,456
Government National Mortgage Association (GNMA), 2020-123 EI, IO		2.500	%		8/20/50		4,995,965		731,553
Government National Mortgage Association (GNMA), 2020-129 IE, IO		2.500	%		9/20/50		164,620		24,393
Government National Mortgage Association (GNMA), 2020-160 QI, IO		2.500	%		10/20/50		5,067,483		880,845
Government National Mortgage Association (GNMA), 2020-160 VI, IO		2.500	%		10/20/50		246,786		34,642
Government National Mortgage Association (GNMA), 2020-160 YI, IO		2.500	%		10/20/50		669,059		91,281
Government National Mortgage Association (GNMA), 2020-181 WI, IO		2.000	%		12/20/50		1,268,824		140,466
Government National Mortgage Association (GNMA), 2020-191 IX, IO		2.500	%		12/20/50		4,167,262		731,760
Government National Mortgage Association (GNMA), 2020-H02 FG (1 mo. USD LIBOR + 0.600%)		3.962	%		1/20/70		1,080,172		1,065,392	(b)
Government National Mortgage Association (GNMA), 2020-H08 BI, IO		0.015	%		4/1/70		7,466,525		252,045	(b)
Government National Mortgage Association (GNMA), 2020-H12 F (1 mo. USD LIBOR + 0.500%)		3.749	%		7/20/70		49,696		47,911	(b)
Government National Mortgage Association (GNMA), 2020-H13 FA (1 mo. USD LIBOR + 0.450%)		2.980	%		7/20/70		524,012		502,118	(b)
Government National Mortgage Association (GNMA), 2021-14 AB		1.340	%		6/16/63		1,191,656		927,836
Government National Mortgage Association (GNMA), 2021-21 AH		1.400	%		6/16/63		3,012,240		2,360,297

See Notes to Financial Statements.

26 Western Asset Mortgage Total Return Fund 2022 Annual Report

Western Asset Mortgage Total Return Fund

(Percentages shown based on Fund net assets)

Security	Rate			Maturity Date		Face Amount		Value
Collateralized Mortgage Obligations (d) — continued
Government National Mortgage Association (GNMA), 2021-216 NI, IO		3.000	%		12/20/51	$	4,496,782	$	824,863
Government National Mortgage Association (GNMA), 2021-7 TI, IO		2.500	%		1/16/51		4,903,080		828,681
Government National Mortgage Association (GNMA), 2021-15 TQ, IO (-1.000 x 1 mo. USD LIBOR + 6.300%, 1.300% cap)		1.300	%		12/20/50		23,390,864		1,517,349	(b)
Government National Mortgage Association (GNMA), 2021-29 TI, IO		2.500	%		2/20/51		755,346		130,011
Government National Mortgage Association (GNMA), 2021-60 IO, IO		0.826	%		5/16/63		4,684,125		296,174	(b)
Government National Mortgage Association (GNMA), 2021-68 IO, IO		0.870	%		10/16/62		4,582,535		297,998	(b)
Government National Mortgage Association (GNMA), 2021-156 IE, IO		2.500	%		9/20/51		4,732,560		690,632
Government National Mortgage Association (GNMA), 2021-158 IN, IO		2.500	%		9/20/51		8,562,303		1,159,471
Government National Mortgage Association (GNMA), 2021-158 XB, IO		2.500	%		9/20/51		5,277,575		752,857
Government National Mortgage Association (GNMA), 2021-180 IO, IO		0.903	%		11/16/63		2,410,589		175,737	(b)
Government National Mortgage Association (GNMA), 2022-54 Z		2.000	%		10/16/63		1,827,181		1,021,971	(b)
Government National Mortgage Association (GNMA), 2022-139 AL		4.000	%		7/20/51		1,200,000		1,112,831
Government National Mortgage Association (GNMA), 2022-147 B		2.200	%		10/16/63		6,500,000		5,151,199
Government National Mortgage Association (GNMA), 2022-158 AL		2.100	%		8/16/64		5,987,767		4,608,332
GS Mortgage Securities Corp. II, 2018-SRP5 D (1 mo. USD LIBOR + 6.500%)		10.818	%		9/15/31		4,550,231		1,365,703	(b)(e)
GS Mortgage Securities Corp. Trust, 2018- LUAU G (1 mo. USD LIBOR + 4.450%)		8.768	%		11/15/32		1,070,000		994,971	(b)(e)
GS Mortgage Securities Corp. Trust, 2021-IP A (1 mo. USD LIBOR + 0.950%)		5.268	%		10/15/36		360,000		336,452	(b)(e)
GS Mortgage Securities Trust, 2015-GC34 D		2.979	%		10/10/48		2,500,000		1,806,149
GS Mortgage Securities Trust, 2019-GC39 XA, IO		1.128	%		5/10/52		44,565,918		2,055,902	(b)
GS Mortgage Securities Trust, 2020-GC47 XA, IO		1.129	%		5/12/53		16,958,145		1,060,381	(b)

See Notes to Financial Statements.

Western Asset Mortgage Total Return Fund 2022 Annual Report 27

Schedule of investments (cont’d)

December 31, 2022

Western Asset Mortgage Total Return Fund

(Percentages shown based on Fund net assets)

Security	Rate			Maturity Date		Face Amount		Value
Collateralized Mortgage Obligations (d) — continued
GSMPS Mortgage Loan Trust, 2006-RP2 1AF1 (1 mo. USD LIBOR + 0.400%)		4.789	%		4/25/36	$	1,099,162	$	913,099	(b)(e)
Impac CMB Trust, 2004-10 3A1 (1 mo. USD LIBOR + 0.700%)		5.089	%		3/25/35		133,469		123,646	(b)
Impac CMB Trust, 2007-A A (1 mo. USD LIBOR + 0.500%)		4.889	%		5/25/37		213,423		198,995	(b)(e)
JPMDB Commercial Mortgage Securities Trust, 2017-C7 B		3.985	%		10/15/50		420,000		363,274
JPMorgan Chase Commercial Mortgage Securities Trust, 2015-FL7 D (1 mo. USD LIBOR + 3.750%)		8.068	%		5/15/28		2,873,012		2,650,922	(b)(e)
JPMorgan Chase Commercial Mortgage Securities Trust, 2019-COR5 XA, IO		1.468	%		6/13/52		15,725,001		979,304	(b)
JPMorgan Chase Commercial Mortgage Securities Trust, 2007-LD12 AJ		6.514	%		2/15/51		52,307		46,642	(b)
JPMorgan Chase Commercial Mortgage Securities Trust, 2020-MKST G (1 mo. USD LIBOR + 4.250%)		8.818	%		12/15/36		2,018,000		723,227	(b)(e)
JPMorgan Chase Commercial Mortgage Securities Trust, 2020-MKST H (1 mo. USD LIBOR + 6.750%)		11.318	%		12/15/36		2,106,000		540,078	(b)(e)
JPMorgan Chase Commercial Mortgage Securities Trust, 2020-NNN GFX		4.688	%		1/16/37		2,530,000		2,026,048	(b)(e)
JPMorgan Chase Commercial Mortgage Securities Trust, 2021-NYAH H (1 mo. USD LIBOR + 3.390%)		7.708	%		6/15/38		360,000		334,299	(b)(e)
La Hipotecaria El Salvadorian Mortgage Trust, 2019-1A AAA		4.250	%		9/29/46		1,393,031		1,340,792	(e)(f)(g)
MASTR Adjustable Rate Mortgages Trust, 2006-OA1 1A1 (1 mo. USD LIBOR + 0.210%)		4.599	%		4/25/46		280,794		241,910	(b)
MBRT, 2019-MBR H1 (1 mo. USD LIBOR + 4.350%)		8.668	%		11/15/36		980,000		935,081	(b)(e)
Med Trust, 2021-MDLN F (1 mo. USD LIBOR + 4.000%)		8.318	%		11/15/38		3,560,000		3,291,003	(b)(e)
ML-CFC Commercial Mortgage Trust, 2007-5 AJFL		5.450	%		8/12/48		501,411		129,320	(b)(e)
Morgan Stanley Capital I Trust, 2007-IQ16 AJ		6.079	%		12/12/49		39,775		19,494	(b)
Morgan Stanley Mortgage Loan Trust, 2006-8AR 1A2 (1 mo. USD LIBOR + 0.140%)		4.529	%		6/25/36		30,060		6,789	(b)
Morgan Stanley Re-REMIC Trust, 2015-R6 1A1 (1 mo. USD LIBOR + 0.260%)		3.204	%		7/26/45		56,918		56,749	(b)(e)

See Notes to Financial Statements.

28 Western Asset Mortgage Total Return Fund 2022 Annual Report

Western Asset Mortgage Total Return Fund

(Percentages shown based on Fund net assets)

Security	Rate			Maturity Date		Face Amount		Value
Collateralized Mortgage Obligations (d) — continued
MRCD Mortgage Trust, 2019-PRKC A		4.250	%		12/15/36	$	2,097,000	$	1,533,737	(b)(e)
Multifamily CAS Trust, 2020-1 CE (1 mo. USD LIBOR + 7.500%)		11.889	%		3/25/50		4,500,000		4,191,202	(b)(e)
Multifamily Trust, 2016-1 B		1.983	%		4/25/46		652,706		653,522	(b)(e)
Natixis Commercial Mortgage Securities Trust, 2019-FAME D		4.398	%		8/15/36		1,950,000		1,670,454	(b)(e)
Natixis Commercial Mortgage Securities Trust, 2019-FAME E		4.398	%		8/15/36		2,077,000		1,621,161	(b)(e)
New Residential Mortgage Loan Trust, 2014-1A A		3.750	%		1/25/54		506,260		477,418	(b)(e)
NewRez Warehouse Securitization Trust, 2021-1 F (1 mo. USD LIBOR + 5.250%)		9.639	%		5/25/55		1,335,000		1,275,838	(b)(e)
NovaStar Mortgage Funding Trust, 2006- MTA1 2A1A (1 mo. USD LIBOR + 0.380%)		0.412	%		9/25/46		62,735		59,493	(b)
OPG Trust, 2021-PORT A (1 mo. USD LIBOR + 0.484%)		4.802	%		10/15/36		472,908		452,543	(b)(e)
PMT Credit Risk Transfer Trust, 2019-2R A (1 mo. USD LIBOR + 2.750%)		7.137	%		5/27/23		629,578		604,826	(b)(e)
Redwood Funding Trust, 2019-1 PT, Step bond (4.468% to 7/29/23 then 4.968%)		4.468	%		9/27/24		6,667,669		6,626,662	(e)
Starwood Retail Property Trust, 2014-STAR C (1 mo. USD LIBOR + 2.750%)		7.068	%		11/15/27		2,324,000		238,210	(b)(e)
Starwood Retail Property Trust, 2014-STAR D (1 mo. USD LIBOR + 3.500%)		7.818	%		11/15/27		650,000		26,000	(b)(e)
Structured Asset Mortgage Investments II
Trust, 2006-AR6 1A1 (1 mo. USD LIBOR + 0.360%)		4.749	%		7/25/46		78,788		64,583	(b)
Structured Asset Securities Corp., 2005-RF3 1A (1 mo. USD LIBOR + 0.350%)		4.739	%		6/25/35		149,441		139,315	(b)(e)
Tharaldson Hotel Portfolio Trust, 2018-THL D (1 mo. USD LIBOR + 2.300%)		6.518	%		11/11/34		2,223,670		2,093,927	(b)(e)
Tharaldson Hotel Portfolio Trust, 2018-THL E (1 mo. USD LIBOR + 3.480%)		7.698	%		11/11/34		4,836,179		4,532,821	(b)(e)
Tharaldson Hotel Portfolio Trust, 2018-THL F (1 mo. USD LIBOR + 4.252%)		8.470	%		11/11/34		3,602,427		3,392,798	(b)(e)
WaMu Mortgage Pass-Through Certificates Trust, 2003-AR5 A7		3.206	%		6/25/33		18,625		17,334	(b)

See Notes to Financial Statements.

Western Asset Mortgage Total Return Fund 2022 Annual Report 29

Schedule of investments (cont’d)

December 31, 2022

Western Asset Mortgage Total Return Fund

(Percentages shown based on Fund net assets)

Security	Rate			Maturity Date		Face Amount		Value
Collateralized Mortgage Obligations (d) — continued
Wells Fargo Commercial Mortgage Trust, 2019-C51 A4		3.311	%		6/15/52	$	1,370,000	$	1,220,222
Wells Fargo Commercial Mortgage Trust, 2021-C59 XA, IO		1.537	%		4/15/54		12,473,096		1,036,240	(b)
Total Collateralized Mortgage Obligations (Cost — $268,480,993)									232,629,839
Asset-Backed Securities — 11.2%
Applebee’s Funding LLC/IHOP Funding LLC, 2019-1A A2II		4.723	%		6/5/49		298,980		273,382	(e)
Aqua Finance Trust, 2020-AA C		3.970	%		7/17/46		3,500,000		3,035,851	(e)
Avis Budget Rental Car Funding AESOP LLC, 2019-2A C		4.240	%		9/22/25		4,200,000		4,010,633	(e)
Avis Budget Rental Car Funding AESOP LLC, 2020-1A C		3.020	%		8/20/26		3,700,000		3,318,488	(e)
Castlelake Aircraft Structured Trust, 2021-1A A		3.474	%		1/15/46		742,848		625,351	(e)
College Ave Student Loans LLC, 2021-C D		4.110	%		7/26/55		1,500,000		1,171,571	(e)
Conseco Finance Corp., 1997-4 M1		7.220	%		2/15/29		578,252		579,978	(b)
Countrywide Asset-Backed Certificates Trust, 2002-S3 M1		4.800	%		5/25/32		2,898		2,510	(b)
Countrywide Asset-Backed Certificates Trust, 2006-SD3 A1 (1 mo. USD LIBOR + 0.660%)		5.049	%		7/25/36		81,982		79,789	(b)(e)
Credit Suisse European Mortgage Capital Ltd., 2019-1OTF A (3 mo. USD LIBOR + 2.900%)		7.315	%		8/9/24		4,700,000		4,599,298	(b)(e)
Credit Suisse European Mortgage Capital Ltd., 2020-1OTF A (3 mo. USD LIBOR + 2.900%)		7.390	%		8/9/24		2,834,171		2,770,827	(b)(e)
CSMC Trust, 2017-RPL1 A1		2.750	%		7/25/57		732,402		701,317	(b)(e)
CSMC Trust, 2017-RPL1 B1		2.950	%		7/25/57		4,076,582		2,614,201	(b)(e)
CSMC Trust, 2017-RPL1 B2		2.950	%		7/25/57		4,676,961		3,007,604	(b)(e)
CSMC Trust, 2017-RPL1 B3		2.950	%		7/25/57		3,976,476		2,250,407	(b)(e)
CSMC Trust, 2017-RPL1 B4		2.950	%		7/25/57		4,063,830		774,554	(b)(e)
GoodLeap Sustainable Home Solutions Trust, 2021-5CS C		3.500	%		10/20/48		1,372,662		949,258	(e)
Lunar Structured Aircraft Portfolio Notes, 2021-1 B		3.432	%		10/15/46		878,907		675,608	(e)
Mercury Financial Credit Card Master Trust, 2021-1A C		4.210	%		3/20/26		5,000,000		4,577,552	(e)
Navient Private Education Loan Trust, 2020-A B		3.160	%		11/15/68		4,510,000		3,734,719	(e)

See Notes to Financial Statements.

30 Western Asset Mortgage Total Return Fund 2022 Annual Report

Western Asset Mortgage Total Return Fund

(Percentages shown based on Fund net assets)

Security	Rate			Maturity Date		Face Amount		Value
Asset-Backed Securities — continued
Navient Private Education Refi Loan Trust, 2020-BA B		2.770	%		1/15/69	$	5,000,000	$	3,921,182	(e)
RAAC Trust, 2006-RP3 A (1 mo. USD LIBOR + 0.270%)		4.659	%		5/25/36		57,260		56,780	(b)(e)
SMB Private Education Loan Trust, 2014-A R		0.000	%		9/15/45		22,179		1,827,921	(e)
SMB Private Education Loan Trust, 2015-C R		0.000	%		9/18/46		2,751		1,167,038	(e)
SMB Private Education Loan Trust, 2020-A B		3.000	%		8/15/45		2,000,000		1,668,953	(e)
SMB Private Education Loan Trust, 2021-A C		2.990	%		1/15/53		6,000,000		5,020,564	(e)
SoFi Professional Loan Program LLC, 2017-F R1		0.000	%		1/25/41		25,000		339,518	(e)
SoFi Professional Loan Program Trust, 2020-A BFX		3.120	%		5/15/46		3,200,000		2,488,933	(e)
Stonepeak, 2021-1A B		3.821	%		2/28/33		2,574,944		2,223,847	(e)
Structured Asset Securities Corp. Mortgage Loan Trust, 2006-ARS1 A1 (1 mo. USD LIBOR + 0.220%)		4.609	%		2/25/36		1,360,467		34,587	(b)(e)
Thrust Engine Leasing, 2021-1A A		4.163	%		7/15/40		946,689		698,160	(e)
Total Asset-Backed Securities (Cost — $79,727,193)									59,200,381
Total Investments — 100.2% (Cost — $607,959,009)									529,957,109
Liabilities in Excess of Other Assets — (0.2)%									(884,021	)
Total Net Assets — 100.0%								$	529,073,088

^(a)  Securities traded on a when-issued or delayed delivery basis.

^(b)  Variable rate security. Interest rate disclosed is as of the most recent information available. Certain variable rate securities are not based on a published reference rate and spread but are determined by the issuer or agent and are based on current market conditions. These securities do not indicate a reference rate and spread in their description above.

^(c)  This security is traded on a to-be-announced (“TBA”) basis. At December 31, 2022, the Fund held TBA securities with a total cost of $5,013,836.

^(d)  Collateralized mortgage obligations are secured by an underlying pool of mortgages or mortgage pass-through certificates that are structured to direct payments on underlying collateral to different series or classes of the obligations. The interest rate may change positively or inversely in relation to one or more interest rates, financial indices or other financial indicators and may be subject to an upper and/or lower limit.

^(e)  Security is exempt from registration under Rule 144A of the Securities Act of 1933. This security may be resold in transactions that are exempt from registration, normally to qualified institutional buyers. This security has been deemed liquid pursuant to guidelines approved by the Board of Trustees.

^(f)  Security is valued in good faith in accordance with procedures approved by the Board of Trustees (Note 1).

^(g)  Security is valued using significant unobservable inputs (Note 1).

See Notes to Financial Statements.

Western Asset Mortgage Total Return Fund 2022 Annual Report 31

Schedule of investments (cont’d)

December 31, 2022

Western Asset Mortgage Total Return Fund

Abbreviation(s) used in this schedule:
ACES	— Alternative Credit Enhancement Securities
CAS	— Connecticut Avenue Securities
IO	— Interest Only
LIBOR	— London Interbank Offered Rate
PAC	— Planned Amortization Class
PO	— Principal Only
REMIC	— Real Estate Mortgage Investment Conduit
Re-REMIC	— Resecuritization of Real Estate Mortgage Investment Conduit
SOFR	— Secured Overnight Financing Rate
STRIPS	— Separate Trading of Registered Interest and Principal Securities
USD	— United States Dollar

At December 31, 2022, the Fund had the following open futures contracts:

	Number of Contracts		Expiration Date		Notional Amount		Market Value		Unrealized Appreciation (Depreciation)
Contracts to Buy:
U.S. Treasury 2-Year Notes		81		3/23	$	16,618,568	$	16,611,328	$	(7,240)
U.S. Treasury 5-Year Notes		1,069		3/23		115,499,098		115,376,839		(122,259)
U.S. Treasury Long-Term Bonds		597		3/23		75,185,528		74,830,219		(355,309)
U.S. Treasury Ultra Long- Term Bonds		57		3/23		7,654,046		7,655,812		1,766
										(483,042)
Contracts to Sell:
U.S. Treasury 10-Year Notes		77		3/23		8,856,070		8,646,860		209,210
U.S. Treasury Ultra 10-Year Notes		112		3/23		13,420,341		13,247,500		172,841
										382,051
Net unrealized depreciation on open futures contracts									$	(100,991)

See Notes to Financial Statements.

32 Western Asset Mortgage Total Return Fund 2022 Annual Report

Statement of assets and liabilities

December 31, 2022

Assets:
Investments, at value (Cost — $607,959,009)	$	529,957,109
Foreign currency, at value (Cost — $102,492)		90,635
Cash		534,036
Receivable for securities sold		22,460,579
Deposits with brokers for open futures contracts		4,513,230
Interest receivable		2,351,057
Receivable for Fund shares sold		160,395
Deposits with brokers for centrally cleared swap contracts		100,000
Dividends receivable from affiliated investments		485
Prepaid expenses		25,659
Total Assets		560,193,185
Liabilities:
Payable for securities purchased		28,139,434
Payable for Fund shares repurchased		2,086,183
Investment management fee payable		230,287
Payable to brokers — net variation margin on open futures contracts		208,479
Distributions payable		152,657
Service and/or distribution fees payable		92,119
Trustees’ fees payable		2,883
Accrued expenses		208,055
Total Liabilities		31,120,097
Total Net Assets	$	529,073,088
Net Assets:
Par value (Note 7)	$	633
Paid-in capital in excess of par value		697,222,766
Total distributable earnings (loss)		(168,150,311)
Total Net Assets	$	529,073,088

See Notes to Financial Statements.

Western Asset Mortgage Total Return Fund 2022 Annual Report 33

Statement of assets and liabilities (cont’d)

December 31, 2022

Net Assets:
Class 1	$	16,756,026
Class A	$	403,772,970
Class C	$	4,861,065
Class C1	$	61,181
Class I	$	75,810,893
Class IS	$	27,810,953
Shares Outstanding:
Class 1		2,004,724
Class A		48,362,172
Class C		582,148
Class C1		7,337
Class I		9,039,248
Class IS		3,314,640
Net Asset Value:
Class 1 (and redemption price)	$	8.36
Class A (and redemption price)	$	8.35
Class C*	$	8.35
Class C1*	$	8.34
Class I (and redemption price)	$	8.39
Class IS (and redemption price)	$	8.39
Maximum Public Offering Price Per Share:
Class A (based on maximum initial sales charge of 3.75%; 4.25% prior to August 15, 2022)	$	8.68

* Redemption price per share is NAV of Class C and Class C1 shares reduced by a 1.00% CDSC if shares are redeemed within one year from purchase payment (Note 2).

See Notes to Financial Statements.

34 Western Asset Mortgage Total Return Fund 2022 Annual Report

Statement of operations

For the Year Ended December 31, 2022

Investment Income:
Interest	$	23,448,124
Dividends from affiliated investments		33,424
Total Investment Income		23,481,548
Expenses:
Investment management fee (Note 2)		3,037,829
Service and/or distribution fees (Notes 2 and 5)		1,210,529
Transfer agent fees (Note 5)		802,757
Registration fees		103,312
Fund accounting fees		73,469
Audit and tax fees		47,221
Shareholder reports		30,218
Legal fees		21,790
Trustees’ fees		13,563
Commitment fees (Note 9)		4,189
Insurance		2,066
Custody fees		1,169
Miscellaneous expenses		10,807
Total Expenses		5,358,919
Less: Fee waivers and/or expense reimbursements (Notes 2 and 5)		(8,891)
Net Expenses		5,350,028
Net Investment Income		18,131,520
Realized and Unrealized Gain (Loss)on Investments, Futures Contracts, Written Options, Swap Contracts and Foreign Currency Transactions (Notes 1, 3 and 4):
Net Realized Gain (Loss) From:
Investment transactions in unaffiliated securities		(19,610,206)
Futures contracts		(29,608,164)
Written options		543,580
Swap contracts		5,605,170
Net Realized Loss		(43,069,620)
Change in Net Unrealized Appreciation (Depreciation) From:
Investments in unaffiliated securities		(67,615,870)
Futures contracts		248,861
Written options		(20,430)
Swap contracts		(311,557)
Foreign currencies		(5,762)
Change in Net Unrealized Appreciation (Depreciation)		(67,704,758)
Net Loss on Investments, Futures Contracts, Written Options, Swap Contracts and Foreign Currency Transactions		(110,774,378)
Decrease in Net Assets From Operations	$	(92,642,858)

See Notes to Financial Statements.

Western Asset Mortgage Total Return Fund 2022 Annual Report 35

Statements of changes in net assets

For the Years Ended December 31,	2022		2021
Operations:
Net investment income	$	18,131,520	$	7,979,379
Net realized loss		(43,069,620)		(1,024,678)
Change in net unrealized appreciation (depreciation)		(67,704,758)		(1,169,455)
Increase (Decrease) in Net Assets From Operations		(92,642,858)		5,785,246
Distributions to Shareholders From (Notes 1 and 6):
Total distributable earnings		(22,095,602)		(19,774,704)
Decrease in Net Assets From Distributions to Shareholders		(22,095,602)		(19,774,704)
Fund Share Transactions (Note 7):
Net proceeds from sale of shares		94,519,788		125,993,678
Reinvestment of distributions		20,337,419		17,832,621
Cost of shares repurchased		(177,623,466)		(209,038,433)
Decrease in Net Assets From Fund Share Transactions		(62,766,259)		(65,212,134)
Decrease in Net Assets		(177,504,719)		(79,201,592)
Net Assets:
Beginning of year		706,577,807		785,779,399
End of year	$	529,073,088	$	706,577,807

See Notes to Financial Statements.

36 Western Asset Mortgage Total Return Fund 2022 Annual Report

Financial highlights

For a share of each class of beneficial interest outstanding throughout each year ended December 31:
Class 1 Shares1	2022			2021			2020			2019			2018
Net asset value, beginning of year		$10.06			$10.25			$10.37			$10.22			$10.57
Income (loss) from operations:
Net investment income		0.29			0.13			0.24			0.45			0.48
Net realized and unrealized gain (loss)		(1.64)			(0.03)			0.01	2		0.18			(0.25)
Total income (loss) from operations		(1.35)			0.10			0.25			0.63			0.23
Less distributions from:
Net investment income		(0.35)			(0.29)			(0.37)			(0.48)			(0.58)
Total distributions		(0.35)			(0.29)			(0.37)			(0.48)			(0.58)
Net asset value, end of year		$8.36			$10.06			$10.25			$10.37			$10.22
Total return3		(13.60)	%		1.03	%		2.53	%		6.31	%		2.31	%
Net assets, end of year (000s)		$16,756			$21,899			$24,394			$26,363			$28,093
Ratios to average net assets:
Gross expenses		0.69	%		0.66	%		0.70	%		0.67	%		0.68	%
Net expenses4		0.69	5		0.66	5		0.69	5		0.67	5		0.68
Net investment income		3.18			1.28			2.30			4.32			4.65
Portfolio turnover rate6		43	%		52	%		108	%		74	%		64	%

¹  Per share amounts have been calculated using the average shares method.

²  Calculation of the net gain per share (both realized and unrealized) does not correlate to the aggregate realized and unrealized losses presented in the Statement of Operations due to the timing of the sales and repurchases of Fund shares in relation to fluctuating market values of the investments of the Fund.

³  Performance figures may reflect compensating balance arrangements, fee waivers and/or expense reimbursements. In the absence of compensating balance arrangements, fee waivers and/or expense reimbursements, the total return would have been lower. Past performance is no guarantee of future results.

⁴  As a result of an expense limitation arrangement, the ratio of total annual fund operating expenses for Class 1 shares did not exceed the ratio of total annual fund operating expenses for Class A shares. This expense limitation arrangement cannot be terminated prior to December 31, 2024 without the Board of Trustees’ consent. In addition, the manager has agreed to waive the Fund’s management fee to an extent sufficient to offset the net management fee payable in connection with any investment in an affiliated money market fund.

⁵  Reflects fee waivers and/or expense reimbursements.

⁶  Excluding mortgage dollar roll transactions. If mortgage dollar roll transactions had been included, the portfolio turnover rate would have been 58%, 123%, 160%, 115% and 196% for the years ended December 31, 2022, 2021, 2020, 2019 and 2018, respectively.

See Notes to Financial Statements.

Western Asset Mortgage Total Return Fund 2022 Annual Report 37

Financial highlights (cont’d)

For a share of each class of beneficial interest outstanding throughout each year ended December 31:
Class A Shares1	2022			2021			2020			2019			2018
Net asset value, beginning of year		$10.05			$10.24			$10.36			$10.21			$10.56
Income (loss) from operations:
Net investment income		0.27			0.10			0.21			0.42			0.45
Net realized and unrealized gain (loss)		(1.64)			(0.02)			0.02	2		0.19			(0.25)
Total income (loss) from operations		(1.37)			0.08			0.23			0.61			0.20
Less distributions from:
Net investment income		(0.33)			(0.27)			(0.35)			(0.46)			(0.55)
Total distributions		(0.33)			(0.27)			(0.35)			(0.46)			(0.55)
Net asset value, end of year		$8.35			$10.05			$10.24			$10.36			$10.21
Total return3		(13.84)	%		0.77	%		2.25	%		6.01	%		2.02	%
Net assets, end of year (millions)		$404			$520			$521			$506			$463
Ratios to average net assets:
Gross expenses		0.95	%		0.93	%		0.96	%		0.95	%		0.96	%
Net expenses4,5		0.95			0.93			0.96			0.94			0.96
Net investment income		2.92			1.03			2.03			4.02			4.38
Portfolio turnover rate6		43	%		52	%		108	%		74	%		64	%

¹  Per share amounts have been calculated using the average shares method.

²  Calculation of the net gain per share (both realized and unrealized) does not correlate to the aggregate realized and unrealized losses presented in the Statement of Operations due to the timing of the sales and repurchases of Fund shares in relation to fluctuating market values of the investments of the Fund.

³  Performance figures, exclusive of sales charges, may reflect compensating balance arrangements, fee waivers and/or expense reimbursements. In the absence of compensating balance arrangements, fee waivers and/or expense reimbursements, the total return would have been lower. Past performance is no guarantee of future results.

⁴  Reflects fee waivers and/or expense reimbursements.

⁵  The manager has agreed to waive the Fund’s management fee to an extent sufficient to offset the net management fee payable in connection with any investment in an affiliated money market fund.

⁶  Excluding mortgage dollar roll transactions. If mortgage dollar roll transactions had been included, the portfolio turnover rate would have been 58%, 123%, 160%, 115% and 196% for the years ended December 31, 2022, 2021, 2020, 2019 and 2018, respectively.

See Notes to Financial Statements.

38 Western Asset Mortgage Total Return Fund 2022 Annual Report

For a share of each class of beneficial interest outstanding throughout each year ended December 31:
Class C Shares1	2022			2021			2020			2019			2018
Net asset value, beginning of year		$10.05			$10.24			$10.36			$10.20			$10.55
Income (loss) from operations:
Net investment income		0.20			0.03			0.14			0.35			0.38
Net realized and unrealized gain (loss)		(1.64)			(0.02)			0.02	2		0.19			(0.25)
Total income (loss) from operations		(1.44)			0.01			0.16			0.54			0.13
Less distributions from:
Net investment income		(0.26)			(0.20)			(0.28)			(0.38)			(0.48)
Total distributions		(0.26)			(0.20)			(0.28)			(0.38)			(0.48)
Net asset value, end of year		$8.35			$10.05			$10.24			$10.36			$10.20
Total return3		(14.42)	%		0.07	%4		1.57	%		5.39	%		1.31	%
Net assets, end of year (000s)		$4,861			$9,514			$14,849			$18,218			$16,060
Ratios to average net assets:
Gross expenses		1.62	%		1.62	%		1.64	%		1.64	%		1.65	%
Net expenses5,6		1.62			1.61			1.64			1.64			1.65
Net investment income		2.20			0.30			1.36			3.36			3.69
Portfolio turnover rate7		43	%		52	%		108	%		74	%		64	%

¹  Per share amounts have been calculated using the average shares method.

²  Calculation of the net gain per share (both realized and unrealized) does not correlate to the aggregate realized and unrealized losses presented in the Statement of Operations due to the timing of the sales and repurchases of Fund shares in relation to fluctuating market values of the investments of the Fund.

³  Performance figures, exclusive of CDSC, may reflect compensating balance arrangements, fee waivers and/or expense reimbursements. In the absence of compensating balance arrangements, fee waivers and/or expense reimbursements, the total return would have been lower. Past performance is no guarantee of future results.

⁴  The total return includes a payment by an affiliate to reimburse for an error. Absent this payment, total return would have been (0.03)% for the year ended December 31, 2021.

⁵  As a result of an expense limitation arrangement, the ratio of total annual fund operating expenses, other than interest, brokerage, taxes, extraordinary expenses and acquired fund fees and expenses, to average net assets of Class C shares did not exceed 1.75%. This expense limitation arrangement cannot be terminated prior to December 31, 2024 without the Board of Trustees’ consent. In addition, the manager has agreed to waive the Fund’s management fee to an extent sufficient to offset the net management fee payable in connection with any investment in an affiliated money market fund.

⁶  Reflects fee waivers and/or expense reimbursements.

⁷  Excluding mortgage dollar roll transactions. If mortgage dollar roll transactions had been included, the portfolio turnover rate would have been 58%, 123%, 160%, 115% and 196% for the years ended December 31, 2022, 2021, 2020, 2019 and 2018, respectively.

See Notes to Financial Statements.

Western Asset Mortgage Total Return Fund 2022 Annual Report 39

Financial highlights (cont’d)

For a share of each class of beneficial interest outstanding throughout each year ended December 31:
Class C1 Shares1	2022			2021			2020			2019			2018
Net asset value, beginning of year		$10.06			$10.25			$10.37			$10.22			$10.57
Income (loss) from operations:
Net investment income		0.14			0.03			0.15			0.39			0.41
Net realized and unrealized gain (loss)		(1.63)			(0.02)			0.02	2		0.18			(0.25)
Total income (loss) from operations		(1.49)			0.01			0.17			0.57			0.16
Less distributions from:
Net investment income		(0.23)			(0.20)			(0.29)			(0.42)			(0.51)
Total distributions		(0.23)			(0.20)			(0.29)			(0.42)			(0.51)
Net asset value, end of year		$8.34			$10.06			$10.25			$10.37			$10.22
Total return3		(14.92)	%		0.11	%4		1.72	%		5.65	%		1.61	%
Net assets, end of year (000s)		$61			$498			$1,271			$1,562			$9,267
Ratios to average net assets:
Gross expenses		2.60	%		1.58	%		1.49	%		1.36	%		1.38	%
Net expenses5,6		2.18			1.57			1.49			1.36			1.37
Net investment income		1.48			0.27			1.51			3.75			3.94
Portfolio turnover rate7		43	%		52	%		108	%		74	%		64	%

¹  Per share amounts have been calculated using the average shares method.

²  Calculation of the net gain per share (both realized and unrealized) does not correlate to the aggregate realized and unrealized losses presented in the Statement of Operations due to the timing of the sales and repurchases of Fund shares in relation to fluctuating market values of the investments of the Fund.

³  Performance figures, exclusive of CDSC, may reflect compensating balance arrangements, fee waivers and/or expense reimbursements. In the absence of compensating balance arrangements, fee waivers and/or expense reimbursements, the total return would have been lower. Past performance is no guarantee of future results.

⁴  The total return includes a payment by an affiliate to reimburse for an error. Absent this payment, total return would have been 0.01% for the year ended December 31, 2021.

⁵  Reflects fee waivers and/or expense reimbursements.

⁶  As a result of an expense limitation arrangement, effective June 1, 2022, the ratio of total annual fund operating expenses, other than interest, brokerage, taxes, extraordinary expenses and acquired fund fees and expenses, to average net assets of Class C1 shares did not exceed 1.75%. This expense limitation arrangement cannot be terminated prior to December 31, 2024 without the Board of Trustees’ consent. In addition, the manager has agreed to waive the Fund’s management fee to an extent sufficient to offset the net management fee payable in connection with any investment in an affiliated money market fund.

⁷  Excluding mortgage dollar roll transactions. If mortgage dollar roll transactions had been included, the portfolio turnover rate would have been 58%, 123%, 160%, 115% and 196% for the years ended December 31, 2022, 2021, 2020, 2019 and 2018, respectively.

See Notes to Financial Statements.

40 Western Asset Mortgage Total Return Fund 2022 Annual Report

For a share of each class of beneficial interest outstanding throughout each year ended December 31:
Class I Shares1	2022			2021			2020			2019			2018
Net asset value, beginning of year		$10.09			$10.28			$10.41			$10.25			$10.61
Income (loss) from operations:
Net investment income		0.29			0.13			0.24			0.44			0.48
Net realized and unrealized gain (loss)		(1.64)			(0.02)			0.01	2		0.21			(0.25)
Total income (loss) from operations		(1.35)			0.11			0.25			0.65			0.23
Less distributions from:
Net investment income		(0.35)			(0.30)			(0.38)			(0.49)			(0.59)
Total distributions		(0.35)			(0.30)			(0.38)			(0.49)			(0.59)
Net asset value, end of year		$8.39			$10.09			$10.28			$10.41			$10.25
Total return3		(13.51)	%		0.96	%		2.56	%		6.41	%		2.36	%
Net assets, end of year (000s)		$75,811			$125,664			$188,031			$414,949			$275,602
Ratios to average net assets:
Gross expenses		0.65	%		0.64	%		0.66	%		0.67	%		0.64	%
Net expenses4		0.65	5		0.64	5		0.66	5		0.67	5		0.64
Net investment income		3.18			1.27			2.38			4.26			4.69
Portfolio turnover rate6		43	%		52	%		108	%		74	%		64	%

¹  Per share amounts have been calculated using the average shares method.

²  Calculation of the net gain per share (both realized and unrealized) does not correlate to the aggregate realized and unrealized losses presented in the Statement of Operations due to the timing of the sales and repurchases of Fund shares in relation to fluctuating market values of the investments of the Fund.

³  Performance figures may reflect compensating balance arrangements, fee waivers and/or expense reimbursements. In the absence of compensating balance arrangements, fee waivers and/or expense reimbursements, the total return would have been lower. Past performance is no guarantee of future results.

⁴  As a result of an expense limitation arrangement, the ratio of total annual fund operating expenses, other than interest, brokerage, taxes, extraordinary expenses and acquired fund fees and expenses, to average net assets of Class I shares did not exceed 0.70%. This expense limitation arrangement cannot be terminated prior to December 31, 2024 without the Board of Trustees’ consent. In addition, the manager has agreed to waive the Fund’s management fee to an extent sufficient to offset the net management fee payable in connection with any investment in an affiliated money market fund.

⁵  Reflects fee waivers and/or expense reimbursements.

⁶  Excluding mortgage dollar roll transactions. If mortgage dollar roll transactions had been included, the portfolio turnover rate would have been 58%, 123%, 160%, 115% and 196% for the years ended December 31, 2022, 2021, 2020, 2019 and 2018, respectively.

See Notes to Financial Statements.

Western Asset Mortgage Total Return Fund 2022 Annual Report 41

Financial highlights (cont’d)

For a share of each class of beneficial interest outstanding throughout each year ended December 31:
Class IS Shares1	2022			2021			2020			2019			2018
Net asset value, beginning of year		$10.10			$10.29			$10.42			$10.26			$10.61
Income (loss) from operations:
Net investment income		0.31			0.14			0.25			0.43			0.49
Net realized and unrealized gain (loss)		(1.66)			(0.02)			0.01	2		0.23			(0.24)
Total income (loss) from operations		(1.35)			0.12			0.26			0.66			0.25
Less distributions from:
Net investment income		(0.36)			(0.31)			(0.39)			(0.50)			(0.60)
Total distributions		(0.36)			(0.31)			(0.39)			(0.50)			(0.60)
Net asset value, end of year		$8.39			$10.10			$10.29			$10.42			$10.26
Total return3		(13.51)	%		1.16	%		2.56	%		6.52	%		2.44	%
Net assets, end of year (000s)		$27,811			$28,952			$36,562			$15,120			$5,530
Ratios to average net assets:
Gross expenses		0.56	%		0.55	%		0.58	%		0.56	%		0.56	%
Net expenses4		0.56	5		0.54	5		0.58	5		0.56	5		0.56
Net investment income		3.36			1.36			2.41			4.16			4.77
Portfolio turnover rate6		43	%		52	%		108	%		74	%		64	%

¹  Per share amounts have been calculated using the average shares method.

²  Calculation of the net gain per share (both realized and unrealized) does not correlate to the aggregate realized and unrealized losses presented in the Statement of Operations due to the timing of the sales and repurchases of Fund shares in relation to fluctuating market values of the investments of the Fund.

³  Performance figures may reflect compensating balance arrangements, fee waivers and/or expense reimbursements. In the absence of compensating balance arrangements, fee waivers and/or expense reimbursements, the total return would have been lower. Past performance is no guarantee of future results.

⁴  As a result of an expense limitation arrangement, the ratio of total annual fund operating expenses, other than interest, brokerage, taxes, extraordinary expenses and acquired fund fees and expenses, to average net assets of Class IS shares did not exceed 0.60%. In addition, the ratio of total annual fund operating expenses for Class IS shares did not exceed the ratio of total annual fund operating expenses for Class I shares. These expense limitation arrangements cannot be terminated prior to December 31, 2024 without the Board of Trustees’ consent. In addition, the manager has agreed to waive the Fund’s management fee to an extent sufficient to offset the net management fee payable in connection with any investment in an affiliated money market fund.

⁵  Reflects fee waivers and/or expense reimbursements.

⁶  Excluding mortgage dollar roll transactions. If mortgage dollar roll transactions had been included, the portfolio turnover rate would have been 58%, 123%, 160%, 115% and 196% for the years ended December 31, 2022, 2021, 2020, 2019 and 2018, respectively.

See Notes to Financial Statements.

42 Western Asset Mortgage Total Return Fund 2022 Annual Report

Notes to financial statements

1. Organization and significant accounting policies

Western Asset Mortgage Total Return Fund (the “Fund”) is a separate diversified investment series of Legg Mason Partners Income Trust (the “Trust”). The Trust, a Maryland statutory trust, is registered under the Investment Company Act of 1940, as amended (the “1940 Act”), as an open-end management investment company.

The Fund follows the accounting and reporting guidance in Financial Accounting Standards Board (“FASB”) Accounting Standards Codification Topic 946, Financial Services – Investment Companies (“ASC 946”). The following are significant accounting policies consistently followed by the Fund and are in conformity with U.S. generally accepted accounting principles (“GAAP”), including, but not limited to, ASC 946. Estimates and assumptions are required to be made regarding assets, liabilities and changes in net assets resulting from operations when financial statements are prepared. Changes in the economic environment, financial markets and any other parameters used in determining these estimates could cause actual results to differ. Subsequent events have been evaluated through the date the financial statements were issued.

(a) Investment valuation. The valuations for fixed income securities (which may include, but are not limited to, corporate, government, municipal, mortgage-backed, collateralized mortgage obligations and asset-backed securities) and certain derivative instruments are typically the prices supplied by independent third party pricing services, which may use market prices or broker/dealer quotations or a variety of valuation techniques and methodologies. The independent third party pricing services typically use inputs that are observable such as issuer details, interest rates, yield curves, prepayment speeds, credit risks/spreads, default rates and quoted prices for similar securities. Investments in open-end funds are valued at the closing net asset value per share of each fund on the day of valuation. Futures contracts are valued daily at the settlement price established by the board of trade or exchange on which they are traded. Equity securities for which market quotations are available are valued at the last reported sales price or official closing price on the primary market or exchange on which they trade. When the Fund holds securities or other assets that are denominated in a foreign currency, the Fund will normally use the currency exchange rates as of 4:00 p.m. (Eastern Time). If independent third party pricing services are unable to supply prices for a portfolio investment, or if the prices supplied are deemed by the manager to be unreliable, the market price may be determined by the manager using quotations from one or more broker/dealers or at the transaction price if the security has recently been purchased and no value has yet been obtained from a pricing service or pricing broker. When reliable prices are not readily available, such as when the value of a security has been significantly affected by events after the close of the exchange or market on which the security is principally traded, but before the Fund calculates its net asset value, the Fund values these securities as determined in accordance with procedures approved by the Fund’s Board of Trustees.

Pursuant to policies adopted by the Board of Trustees, the Fund’s manager has been designated as the valuation designee and is responsible for the oversight of the daily valuation process. The Fund’s manager is assisted by the Global Fund Valuation Committee (the “Valuation Committee”). The Valuation Committee is responsible for making fair value determinations, evaluating the effectiveness of the Fund’s pricing policies, and reporting to the Fund’s manager and the Board of Trustees. When determining the reliability of third party pricing information for investments owned by the Fund, the Valuation Committee,

Western Asset Mortgage Total Return Fund 2022 Annual Report 43

Notes to financial statements (cont’d)

among other things, conducts due diligence reviews of pricing vendors, monitors the daily change in prices and reviews transactions among market participants.

The Valuation Committee will consider pricing methodologies it deems relevant and appropriate when making fair value determinations. Examples of possible methodologies include, but are not limited to, multiple of earnings; discount from market of a similar freely traded security; discounted cash-flow analysis; book value or a multiple thereof; risk premium/yield analysis; yield to maturity; and/or fundamental investment analysis. The Valuation Committee will also consider factors it deems relevant and appropriate in light of the facts and circumstances. Examples of possible factors include, but are not limited to, the type of security; the issuer’s financial statements; the purchase price of the security; the discount from market value of unrestricted securities of the same class at the time of purchase; analysts’ research and observations from financial institutions; information regarding any transactions or offers with respect to the security; the existence of merger proposals or tender offers affecting the security; the price and extent of public trading in similar securities of the issuer or comparable companies; and the existence of a shelf registration for restricted securities.

For each portfolio security that has been fair valued pursuant to the policies adopted by the Board of Trustees, the fair value price is compared against the last available and next available market quotations. The Valuation Committee reviews the results of such back testing monthly and fair valuation occurrences are reported to the Board of Trustees quarterly.

The Fund uses valuation techniques to measure fair value that are consistent with the market approach and/or income approach, depending on the type of security and the particular circumstance. The market approach uses prices and other relevant information generated by market transactions involving identical or comparable securities. The income approach uses valuation techniques to discount estimated future cash flows to present value.

GAAP establishes a disclosure hierarchy that categorizes the inputs to valuation techniques used to value assets and liabilities at measurement date. These inputs are summarized in the three broad levels listed below:

• Level 1 — unadjusted quoted prices in active markets for identical investments

• Level 2 — other significant observable inputs (including quoted prices for similar investments, interest rates, prepayment speeds, credit risk, etc.)

• Level 3 — significant unobservable inputs (including the Fund’s own assumptions in determining the fair value of investments)

The inputs or methodologies used to value securities are not necessarily an indication of the risk associated with investing in those securities.

44 Western Asset Mortgage Total Return Fund 2022 Annual Report

The following is a summary of the inputs used in valuing the Fund’s assets and liabilities carried at fair value:

ASSETS
Description	Quoted Prices (Level 1)		Other Significant Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)		Total
Long-Term Investments†:
Mortgage-Backed Securities		—	$	238,126,889		—	$	238,126,889
Collateralized Mortgage Obligations		—		231,289,047	$	1,340,792		232,629,839
Asset-Backed Securities		—		59,200,381		—		59,200,381
Total Investments		—	$	528,616,317	$	1,340,792	$	529,957,109
Other Financial Instruments:
Futures Contracts††	$	383,817		—		—	$	383,817
Total	$	383,817	$	528,616,317	$	1,340,792	$	530,340,926
LIABILITIES
Description	Quoted Prices (Level 1)		Other Significant Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)		Total
Other Financial Instruments:
Futures Contracts††	$	484,808		—		—	$	484,808

† See Schedule of Investments for additional detailed categorizations.

†† Reflects the unrealized appreciation (depreciation) of the instruments.

(b) Purchased options. When the Fund purchases an option, an amount equal to the premium paid by the Fund is recorded as an investment on the Statement of Assets and Liabilities, the value of which is marked-to-market to reflect the current market value of the option purchased. If the purchased option expires, the Fund realizes a loss equal to the amount of premium paid. When an instrument is purchased or sold through the exercise of an option, the related premium paid is added to the basis of the instrument acquired or deducted from the proceeds of the instrument sold. The risk associated with purchasing put and call options is limited to the premium paid.

(c) Written options. When the Fund writes an option, an amount equal to the premium received by the Fund is recorded as a liability, the value of which is marked-to-market daily to reflect the current market value of the option written. If the option expires, the premium received is recorded as a realized gain. When a written call option is exercised, the difference between the premium received plus the option exercise price and the Fund’s basis in the underlying security (in the case of a covered written call option), or the cost to purchase the underlying security (in the case of an uncovered written call option), including brokerage commission, is recognized as a realized gain or loss. When a written put option is exercised, the amount of the premium received is subtracted from the cost of the security purchased by the Fund from the exercise of the written put option to form the Fund’s basis in the underlying security purchased. The writer or buyer of an option traded on an exchange can liquidate the position before the exercise of the option by entering into a

Western Asset Mortgage Total Return Fund 2022 Annual Report 45

Notes to financial statements (cont’d)

closing transaction. The cost of a closing transaction is deducted from the original premium received resulting in a realized gain or loss to the Fund.

The risk in writing a covered call option is that the Fund may forego the opportunity of profit if the market price of the underlying security increases and the option is exercised. The risk in writing a put option is that the Fund may incur a loss if the market price of the underlying security decreases and the option is exercised. The risk in writing an uncovered call option is that the Fund is exposed to the risk of loss if the market price of the underlying security increases. In addition, there is the risk that the Fund may not be able to enter into a closing transaction because of an illiquid secondary market.

(d) Futures contracts. The Fund uses futures contracts generally to gain exposure to, or hedge against, changes in interest rates or gain exposure to, or hedge against, changes in certain asset classes. A futures contract represents a commitment for the future purchase or sale of an asset at a specified price on a specified date.

Upon entering into a futures contract, the Fund is required to deposit cash or securities with a broker in an amount equal to a certain percentage of the contract amount. This is known as the ‘‘initial margin’’ and subsequent payments (‘‘variation margin’’) are made or received by the Fund each day, depending on the daily fluctuation in the value of the contract. For certain futures, including foreign denominated futures, variation margin is not settled daily, but is recorded as a net variation margin payable or receivable. The daily changes in contract value are recorded as unrealized appreciation or depreciation in the Statement of Operations and the Fund recognizes a realized gain or loss when the contract is closed.

Futures contracts involve, to varying degrees, risk of loss in excess of the amounts reflected in the financial statements. In addition, there is the risk that the Fund may not be able to enter into a closing transaction because of an illiquid secondary market.

(e) Swap agreements. The Fund invests in swaps for the purpose of managing its exposure to interest rate, credit or market risk, or for other purposes. The use of swaps involves risks that are different from those associated with other portfolio transactions. Swap agreements are privately negotiated in the over-the-counter market and may be entered into as a bilateral contract (“OTC Swaps”) or centrally cleared (“Centrally Cleared Swaps”). Unlike Centrally Cleared Swaps, the Fund has credit exposure to the counterparties of OTC Swaps.

In a Centrally Cleared Swap, immediately following execution of the swap, the swap agreement is submitted to a clearinghouse or central counterparty (the “CCP”) and the CCP becomes the ultimate counterparty of the swap agreement. The Fund is required to interface with the CCP through a broker, acting in an agency capacity. All payments are settled with the CCP through the broker. Upon entering into a Centrally Cleared Swap, the Fund is required to deposit initial margin with the broker in the form of cash or securities.

Swap contracts are marked-to-market daily and changes in value are recorded as unrealized appreciation (depreciation). The daily change in valuation of Centrally Cleared Swaps, if any, is recorded as a net receivable or payable for variation margin on the Statement of Assets and Liabilities. Gains or losses are realized upon termination of the swap agreement. Collateral, in the form of restricted cash or securities, may be required to be held in segregated accounts with the Fund’s custodian in compliance with the terms of the swap contracts. Securities posted as collateral for swap contracts are identified in the

46 Western Asset Mortgage Total Return Fund 2022 Annual Report

Schedule of Investments and restricted cash, if any, is identified on the Statement of Assets and Liabilities. Risks may exceed amounts recorded in the Statement of Assets and Liabilities. These risks include changes in the returns of the underlying instruments, failure of the counterparties to perform under the contracts’ terms, and the possible lack of liquidity with respect to the swap agreements.

OTC Swap payments received or made at the beginning of the measurement period are reflected as a premium or deposit, respectively, on the Statement of Assets and Liabilities. These upfront payments are amortized over the life of the swap and are recognized as realized gain or loss in the Statement of Operations. Net periodic payments received or paid by the Fund are recognized as a realized gain or loss in the Statement of Operations.

The Fund’s maximum exposure in the event of a defined credit event on a credit default swap to sell protection is the notional amount. As of December 31, 2022, the Fund did not hold any credit default swaps to sell protection.

For average notional amounts of swaps held during the year ended December 31, 2022, see Note 4.

Interest rate swaps

The Fund enters into interest rate swap contracts to manage its exposure to interest rate risk. Interest rate swaps are agreements between two parties to exchange cash flows based on a notional principal amount. The Fund may elect to pay a fixed rate and receive a floating rate, or receive a fixed rate and pay a floating rate, on a notional principal amount. Interest rate swaps are marked-to-market daily based upon quotations from market makers and the change, if any, is recorded as an unrealized appreciation or depreciation in the Statement of Operations. When a swap contract is terminated early, the Fund records a realized gain or loss equal to the difference between the original cost and the settlement amount of the closing transaction.

The risks of interest rate swaps include changes in market conditions that will affect the value of the contract or changes in the present value of the future cash flow streams and the possible inability of the counterparty to fulfill its obligations under the agreement. The Fund’s maximum risk of loss from counterparty credit risk is the discounted net value of the cash flows to be received from the counterparty over the contract’s remaining life, to the extent that amount is positive. This risk is mitigated by the posting of collateral by the counterparty to the Fund to cover the Fund’s exposure to the counterparty.

(f) Stripped securities. The Fund may invest in ‘‘Stripped Securities,’’ a term used collectively for components, or strips, of fixed income securities. Stripped Securities can be principal only securities (“PO”), which are debt obligations that have been stripped of unmatured interest coupons, or interest only securities (“IO”), which are unmatured interest coupons that have been stripped from debt obligations. The market value of Stripped Securities will fluctuate in response to changes in economic conditions, rates of prepayment, interest rates and the market’s perception of the securities. However, fluctuations in response to interest rates may be greater in Stripped Securities than for debt obligations of comparable maturities that pay interest currently. The amount of fluctuation may increase with a longer period of maturity.

The yield to maturity on IO’s is sensitive to the rate of principal repayments (including prepayments) on the related underlying debt obligation and principal payments may have a

Western Asset Mortgage Total Return Fund 2022 Annual Report 47

Notes to financial statements (cont’d)

material effect on yield to maturity. If the underlying debt obligation experiences greater than anticipated prepayments of principal, the Fund may not fully recoup its initial investment in IO’s.

(g) Securities traded on a when-issued and delayed delivery basis. The Fund may trade securities on a when-issued or delayed delivery basis. In when-issued and delayed delivery transactions, the securities are purchased or sold by the Fund with payment and delivery taking place in the future in order to secure what is considered to be an advantageous price and yield to the Fund at the time of entering into the transaction.

Purchasing such securities involves risk of loss if the value of the securities declines prior to settlement. These securities are subject to market fluctuations and their current value is determined in the same manner as for other securities.

(h) Securities traded on a to-be-announced basis. The Fund may trade securities on a to-be-announced (“TBA”) basis. In a TBA transaction, the Fund commits to purchasing or selling securities which have not yet been issued by the issuer and for which specific information, such as the face amount, maturity date and underlying pool of investments in U.S. government agency mortgage pass-through securities, is not announced. Securities purchased on a TBA basis are not settled until they are delivered to the Fund. Beginning on the date the Fund enters into a TBA transaction, cash, U.S. government securities or other liquid high-grade debt obligations are segregated in an amount equal in value to the purchase price of the TBA security. These securities are subject to market fluctuations and their current value is determined in the same manner as for other securities.

At December 31, 2022, the Fund held non-cash collateral for TBA securities from Goldman Sachs Group Inc. in the amount of $60,609.

(i) Mortgage dollar rolls. The Fund may enter into mortgage dollar rolls in which the Fund sells mortgage-backed securities for delivery in the current month, realizing a gain or loss, and simultaneously entering into contracts to repurchase substantially similar (same type, coupon and maturity) securities to settle on a specified future date.

The Fund executes its mortgage dollar rolls entirely in the TBA market, whereby the Fund makes a forward commitment to purchase a security and, instead of accepting delivery, the position is offset by a sale of the security with a simultaneous agreement to repurchase at a future date. The Fund accounts for mortgage dollar rolls as purchases and sales.

The risk of entering into mortgage dollar rolls is that the market value of the securities the Fund is obligated to repurchase under the agreement may decline below the repurchase price. In the event the buyer of securities under a mortgage dollar roll files for bankruptcy or becomes insolvent, the Fund’s use of the proceeds of the mortgage dollar roll may be restricted pending a determination by the counterparty, or its trustee or receiver, whether to enforce the Fund’s obligation to repurchase the securities.

(j) Foreign currency translation. Investment securities and other assets and liabilities denominated in foreign currencies are translated into U.S. dollar amounts based upon prevailing exchange rates on the date of valuation. Purchases and sales of investment securities and income and expense items denominated in foreign currencies are translated into U.S. dollar amounts based upon prevailing exchange rates on the respective dates of such transactions.

48 Western Asset Mortgage Total Return Fund 2022 Annual Report

The Fund does not isolate that portion of the results of operations resulting from fluctuations in foreign exchange rates on investments from the fluctuations arising from changes in market prices of securities held. Such fluctuations are included with the net realized and unrealized gain or loss on investments.

Net realized foreign exchange gains or losses arise from sales of foreign currencies, including gains and losses on forward foreign currency contracts, currency gains or losses realized between the trade and settlement dates on securities transactions, and the difference between the amounts of dividends, interest, and foreign withholding taxes recorded on the Fund’s books and the U.S. dollar equivalent of the amounts actually received or paid. Net unrealized foreign exchange gains and losses arise from changes in the values of assets and liabilities, other than investments in securities, on the date of valuation, resulting from changes in exchange rates.

Foreign security and currency transactions may involve certain considerations and risks not typically associated with those of U.S. dollar denominated transactions as a result of, among other factors, the possibility of lower levels of governmental supervision and regulation of foreign securities markets and the possibility of political or economic instability.

(k) Credit and market risk. Investments in securities that are collateralized by real estate mortgages are subject to certain credit and liquidity risks. When market conditions result in an increase in default rates of the underlying mortgages and the foreclosure values of underlying real estate properties are materially below the outstanding amount of these underlying mortgages, collection of the full amount of accrued interest and principal on these investments may be doubtful. Such market conditions may significantly impair the value and liquidity of these investments and may result in a lack of correlation between their credit ratings and values.

(l) Foreign investment risks. The Fund’s investments in foreign securities may involve risks not present in domestic investments. Since securities may be denominated in foreign currencies, may require settlement in foreign currencies or may pay interest or dividends in foreign currencies, changes in the relationship of these foreign currencies to the U.S. dollar can significantly affect the value of the investments and earnings of the Fund. Foreign investments may also subject the Fund to foreign government exchange restrictions, expropriation, taxation or other political, social or economic developments, all of which affect the market and/or credit risk of the investments.

(m) Counterparty risk and credit-risk-related contingent features of derivative instruments. The Fund may invest in certain securities or engage in other transactions where the Fund is exposed to counterparty credit risk in addition to broader market risks. The Fund may invest in securities of issuers, which may also be considered counterparties as trading partners in other transactions. This may increase the risk of loss in the event of default or bankruptcy by the counterparty or if the counterparty otherwise fails to meet its contractual obligations. The Fund’s subadviser attempts to mitigate counterparty risk by (i) periodically assessing the creditworthiness of its trading partners, (ii) monitoring and/or limiting the amount of its net exposure to each individual counterparty based on its assessment and (iii) requiring collateral from the counterparty for certain transactions. Market events and changes in overall economic conditions may impact the assessment of

Western Asset Mortgage Total Return Fund 2022 Annual Report 49

Notes to financial statements (cont’d)

such counterparty risk by the subadviser. In addition, declines in the values of underlying collateral received may expose the Fund to increased risk of loss.

With exchange traded and centrally cleared derivatives, there is less counterparty risk to the Fund since the exchange or clearinghouse, as counterparty to such instruments, guarantees against a possible default. The clearinghouse stands between the buyer and the seller of the contract; therefore, the credit risk is limited to failure of the clearinghouse. While offset rights may exist under applicable law, the Fund does not have a contractual right of offset against a clearing broker or clearinghouse in the event of a default of the clearing broker or clearinghouse.

The Fund has entered into master agreements, such as an International Swaps and Derivatives Association, Inc. Master Agreement (“ISDA Master Agreement”) or similar agreement, with certain of its derivative counterparties that govern over-the-counter (“OTC”) derivatives and provide for general obligations, representations, agreements, collateral posting terms, netting provisions in the event of default or termination and credit related contingent features. The credit related contingent features include, but are not limited to, a percentage decrease in the Fund’s net assets or net asset value per share over a specified period of time. If these credit related contingent features were triggered, the derivatives counterparty could terminate the positions and demand payment or require additional collateral.

Under an ISDA Master Agreement, the Fund may, under certain circumstances, offset with the counterparty certain derivative financial instruments’ payables and/or receivables with collateral held and/or posted and create one single net payment. However, absent an event of default by the counterparty or a termination of the agreement, the terms of the ISDA Master Agreements do not result in an offset of reported amounts of financial assets and financial liabilities in the Statement of Assets and Liabilities across transactions between the Fund and the applicable counterparty. The enforceability of the right to offset may vary by jurisdiction.

Collateral requirements differ by type of derivative. Collateral or margin requirements are set by the broker or exchange clearinghouse for exchange traded derivatives while collateral terms are contract specific for OTC traded derivatives. Cash collateral that has been pledged to cover obligations of the Fund under derivative contracts, if any, will be reported separately in the Statement of Assets and Liabilities. Securities pledged as collateral, if any, for the same purpose are noted in the Schedule of Investments.

As of December 31, 2022, the Fund did not have any open OTC derivative transactions with credit related contingent features in a net liability position.

(n) Security transactions and investment income. Security transactions are accounted for on a trade date basis. Interest income (including interest income from payment-in-kind securities), adjusted for amortization of premium and accretion of discount, is recorded on the accrual basis. Paydown gains and losses on mortgage- and asset-backed securities are recorded as adjustments to interest income. Dividend income is recorded on the ex-dividend date for dividends received in cash and/or securities. The cost of investments sold is determined by use of the specific identification method. To the extent any issuer defaults or a credit event occurs that impacts the issuer, the Fund may halt any additional interest

50 Western Asset Mortgage Total Return Fund 2022 Annual Report

income accruals and consider the realizability of interest accrued up to the date of default or credit event.

(o) Partnership accounting policy. The Fund records its pro rata share of the income (loss) and capital gains (losses), to the extent of distributions it has received, allocated from the underlying partnerships and accordingly adjusts the cost basis of the underlying partnerships for return of capital. These amounts are included in the Fund’s Statement of Operations.

(p) Distributions to shareholders. Distributions from net investment income of the Fund are declared each business day to shareholders of record and are paid monthly. Distributions of net realized gains, if any, are declared at least annually. Distributions to shareholders of the Fund are recorded on the ex-dividend date and are determined in accordance with income tax regulations, which may differ from GAAP.

(q) Share class accounting. Investment income, common expenses and realized/ unrealized gains (losses) on investments are allocated to the various classes of the Fund on the basis of daily net assets of each class. Fees relating to a specific class are charged directly to that share class.

(r) Compensating balance arrangements. The Fund has an arrangement with its custodian bank whereby a portion of the custodian’s fees are paid indirectly by credits earned on the Fund’s cash on deposit with the bank.

(s) Federal and other taxes. It is the Fund’s policy to comply with the federal income and excise tax requirements of the Internal Revenue Code of 1986 (the “Code”), as amended, applicable to regulated investment companies. Accordingly, the Fund intends to distribute its taxable income and net realized gains, if any, to shareholders in accordance with timing requirements imposed by the Code. Therefore, no federal or state income tax provision is required in the Fund’s financial statements.

Management has analyzed the Fund’s tax positions taken on income tax returns for all open tax years and has concluded that as of December 31, 2022, no provision for income tax is required in the Fund’s financial statements. The Fund’s federal and state income and federal excise tax returns for tax years for which the applicable statutes of limitations have not expired are subject to examination by the Internal Revenue Service and state departments of revenue.

(t) Reclassification. GAAP requires that certain components of net assets be reclassified to reflect permanent differences between financial and tax reporting. These reclassifications have no effect on net assets or net asset value per share. During the current year, the Fund had no reclassifications.

2. Investment management agreement and other transactions with affiliates

Legg Mason Partners Fund Advisor, LLC (“LMPFA”) is the Fund’s investment manager and Western Asset Management Company, LLC (“Western Asset”) is the Fund’s subadviser. LMPFA and Western Asset are indirect, wholly-owned subsidiaries of Franklin Resources, Inc. (“Franklin Resources”).

Western Asset Mortgage Total Return Fund 2022 Annual Report 51

Notes to financial statements (cont’d)

Under the investment management agreement, the Fund pays an investment management fee, calculated daily and paid monthly, in accordance with the following breakpoint schedule:

Average Daily Net Assets	Annual Rate
First $4 billion		0.500	%
Next $2 billion		0.450
Next $2 billion		0.400
Over $8 billion		0.350

LMPFA provides administrative and certain oversight services to the Fund. LMPFA delegates to the subadviser the day-to-day portfolio management of the Fund. For its services, LMPFA pays Western Asset monthly 70% of the net management fee it receives from the Fund.

As a result of expense limitation arrangements between the Fund and LMPFA, the ratio of total annual fund operating expenses, other than interest, brokerage, taxes, extraordinary expenses and acquired fund fees and expenses, to average net assets of Class C, Class C1 (effective June 1, 2022), Class I and Class IS shares did not exceed 1.75%, 1.75%, 0.70% and 0.60%, respectively. In addition, the ratio of total annual fund operating expenses for Class IS shares did not exceed the ratio of total annual fund operating expenses for Class I shares and the ratio of total annual fund operating expenses for Class 1 shares did not exceed the ratio of total annual fund operating expenses for Class A shares. These expense limitation arrangements cannot be terminated prior to December 31, 2024 without the Board of Trustees’ consent. In addition, the manager has agreed to waive the Fund’s management fee to an extent sufficient to offset the net management fee payable in connection with any investment in an affiliated money market fund (the “affiliated money market fund waiver”). The affiliated money market fund waiver is not subject to the recapture provision discussed below.

During the year ended December 31, 2022, fees waived and/or expenses reimbursed amounted to $8,891, which included an affiliated money market fund waiver of $8,460.

LMPFA is permitted to recapture amounts waived and/or reimbursed to a class within two years after the fiscal year in which LMPFA earned the fee or incurred the expense if the class’ total annual fund operating expenses have fallen to a level below the expense limitation (“expense cap”) in effect at the time the fees were earned or the expenses incurred. In no case will LMPFA recapture any amount that would result, on any particular business day of the Fund, in the class’ total annual fund operating expenses exceeding the expense cap or any other lower limit then in effect.

Pursuant to these arrangements, at December 31, 2022, the Fund had remaining fee waivers and/or expense reimbursements subject to recapture by LMPFA and respective dates of expiration as follows:

	Class C1
Expires December 31, 2024	$	416

For the year ended December 31, 2022, LMPFA did not recapture any fees.

Franklin Templeton Investor Services, LLC (“Investor Services”) serves as the Fund’s shareholder servicing agent and acts as the Fund’s transfer agent and dividend-paying agent. Investor Services is an indirect, wholly-owned subsidiary of Franklin Resources.

52 Western Asset Mortgage Total Return Fund 2022 Annual Report

Franklin Distributors, LLC (“Franklin Distributors”) serves as the Fund’s sole and exclusive distributor. Franklin Distributors is an indirect, wholly-owned broker-dealer subsidiary of Franklin Resources.

There is a maximum initial sales charge of 3.75% (4.25% prior to August 15, 2022) for Class A shares. There is a contingent deferred sales charge (“CDSC”) of 1.00% on Class C and Class C1 shares which applies if redemption occurs within 12 months from purchase payment. In certain cases, Class A shares have a 1.00% CDSC, which applies if redemption occurs within 18 months from purchase payment. This CDSC only applies to those purchases of Class A shares, which, when combined with current holdings of other shares of funds sold by Franklin Distributors, equal or exceed $500,000 ($1,000,000 prior to August 15, 2022) in the aggregate. These purchases do not incur an initial sales charge.

For the year ended December 31, 2022, sales charges retained by and CDSCs paid to Franklin Distributors and its affiliates, if any, were as follows:

	Class A		Class C
Sales charges	$	100,213		—
CDSCs		5,938	$	90

All officers and one Trustee of the Trust are employees of Franklin Resources or its affiliates and do not receive compensation from the Trust.

3. Investments

During the year ended December 31, 2022, the aggregate cost of purchases and proceeds from sales of investments (excluding short-term investments) and U.S. Government & Agency Obligations were as follows:

	Investments		U.S. Government & Agency Obligations
Purchases	$	3,865,689	$	352,513,988
Sales		23,007,004		396,492,058

At December 31, 2022, the aggregate cost of investments and the aggregate gross unrealized appreciation and depreciation of investments for federal income tax purposes were as follows:

	Cost		Gross Unrealized Appreciation		Gross Unrealized Depreciation		Net Unrealized Depreciation
Securities	$	605,177,807	$	10,918,144	$	(86,138,842)	$	(75,220,698)
Futures contracts		—		383,817		(484,808)		(100,991)

Western Asset Mortgage Total Return Fund 2022 Annual Report 53

Notes to financial statements (cont’d)

4. Derivative instruments and hedging activities

Below is a table, grouped by derivative type, that provides information about the fair value and the location of derivatives within the Statement of Assets and Liabilities at December 31, 2022.

ASSET DERIVATIVES1
	Interest Rate Risk
Futures contracts2	$	383,817
LIABILITY DERIVATIVES1
	Interest Rate Risk
Futures contracts2	$	484,808

¹  Generally, the balance sheet location for asset derivatives is receivables/net unrealized appreciation and for liability derivatives is payables/net unrealized depreciation.

²  Includes cumulative unrealized appreciation (depreciation) of futures contracts as reported in the Schedule of Investments. Only net variation margin is reported within the receivables and/or payables on the Statement of Assets and Liabilities.

The following tables provide information about the effect of derivatives and hedging activities on the Fund’s Statement of Operations for the year ended December 31, 2022. The first table provides additional detail about the amounts and sources of gains (losses) realized on derivatives during the period. The second table provides additional information about the change in net unrealized appreciation (depreciation) resulting from the Fund’s derivatives and hedging activities during the period.

AMOUNT OF NET REALIZED GAIN (LOSS) ON DERIVATIVES RECOGNIZED
	Interest Rate Risk		Credit Risk		Total
Purchased options1		—	$	(96,621)	$	(96,621)
Futures contracts	$	(29,608,164)		—		(29,608,164)
Written options		338,193		205,387		543,580
Swap contracts		5,605,170		—		5,605,170
Total	$	(23,664,801)	$	108,766	$	(23,556,035)

¹  Net realized gain (loss) from purchased options is reported in Net Realized Gain (Loss) From Investment transactions in unaffiliated securities in the Statement of Operations.

CHANGE IN NET UNREALIZED APPRECIATION (DEPRECIATION) ON DERIVATIVES RECOGNIZED
	Interest Rate Risk
Futures contracts	$	248,861
Written options		(20,430)
Swap contracts		(311,557)
Total	$	(83,126)

54 Western Asset Mortgage Total Return Fund 2022 Annual Report

During the year ended December 31, 2022, the volume of derivative activity for the Fund was as follows:

	Average Market Value
Purchased options†	$	137,416
Written options†		73,449
Futures contracts (to buy)		270,088,691
Futures contracts (to sell)		51,389,025
	Average Notional Balance
Interest rate swap contracts†	$	23,627,692

† At December 31, 2022, there were no open positions held in this derivative.

5. Class specific expenses, waivers and/or expense reimbursements

The Fund has adopted a Rule 12b-1 shareholder services and distribution plan and under that plan the Fund pays service and/or distribution fees with respect to its Class A, Class C and Class C1 shares calculated at the annual rate of 0.25%, 1.00%, and 0.70% of the average daily net assets of each class, respectively. Service and/or distribution fees are accrued daily and paid monthly.

For the year ended December 31, 2022, class specific expenses were as follows:

	Service and/or Distribution Fees			Transfer Agent Fees
Class 1		—		$	25,786
Class A	$	1,138,727	†		670,535
Class C		71,103			5,149
Class C1		699			1,353
Class I		—			98,325
Class IS		—			1,609
Total	$	1,210,529		$	802,757

† Amount shown is exclusive of expense reimbursements. For the year ended December 31, 2022, the service and/or distribution fees reimbursed amounted to $14 for Class A shares.

For the year ended December 31, 2022, waivers and/or expense reimbursements by class were as follows:

	Waivers/Expense Reimbursements
Class 1	$	261
Class A		6,308
Class C		106
Class C1		418
Class I		1,450
Class IS		348
Total	$	8,891

Western Asset Mortgage Total Return Fund 2022 Annual Report 55

Notes to financial statements (cont’d)

6. Distributions to shareholders by class

	Year Ended December 31, 2022		Year Ended December 31, 2021
Net Investment Income:
Class 1	$	726,360	$	665,632
Class A		16,297,685		13,603,073
Class C		201,738		222,548
Class C1		2,157		12,789
Class I		3,746,331		4,317,117
Class IS		1,121,331		953,545
Total	$	22,095,602	$	19,774,704

7. Shares of beneficial interest

At December 31, 2022, the Trust had an unlimited number of shares of beneficial interest authorized with a par value of $0.00001 per share. The Fund has the ability to issue multiple classes of shares. Each class of shares represents an identical interest and has the same rights, except that each class bears certain direct expenses, including those specifically related to the distribution of its shares.

Transactions in shares of each class were as follows:

	Year Ended December 31, 2022				Year Ended December 31, 2021
	Shares		Amount		Shares		Amount
Class 1
Shares sold		—		—		—		—
Shares issued on reinvestment		81,082	$	726,360		65,550	$	665,638
Shares repurchased		(253,869)		(2,318,275)		(267,992)		(2,728,590)
Net decrease		(172,787)	$	(1,591,915)		(202,442)	$	(2,062,952)
Class A
Shares sold		5,420,171	$	49,942,683		8,706,548	$	88,456,525
Shares issued on reinvestment		1,800,660		16,101,855		1,316,996		13,355,154
Shares repurchased		(10,627,822)		(96,589,650)		(9,108,675)		(92,534,676)
Net increase (decrease)		(3,406,991)	$	(30,545,112)		914,869	$	9,277,003
Class C
Shares sold		45,538	$	413,462		40,138	$	409,953
Shares issued on reinvestment		20,739		186,125		19,868		201,521
Shares repurchased		(431,117)		(3,881,738)		(563,567)		(5,731,374)
Net decrease		(364,840)	$	(3,282,151)		(503,561)	$	(5,119,900)
Class C1
Shares sold		677	$	6,241		15,337	$	156,353
Shares issued on reinvestment		237		2,116		1,244		12,635
Shares repurchased		(43,081)		(425,961)		(91,122)		(930,317)
Net decrease		(42,167)	$	(417,604)		(74,541)	$	(761,329)

56 Western Asset Mortgage Total Return Fund 2022 Annual Report

	Year Ended December 31, 2022				Year Ended December 31, 2021
	Shares		Amount		Shares		Amount
Class I
Shares sold		2,538,463	$	23,775,260		2,733,643	$	27,911,756
Shares issued on reinvestment		312,231		2,819,350		332,000		3,383,391
Shares repurchased		(6,264,629)		(57,574,576)		(8,895,452)		(90,848,679)
Net decrease		(3,413,935)	$	(30,979,966)		(5,829,809)	$	(59,553,532)
Class IS
Shares sold		2,266,655	$	20,382,142		887,038	$	9,059,091
Shares issued on reinvestment		56,421		501,613		21,043		214,282
Shares repurchased		(1,876,055)		(16,833,266)		(1,593,280)		(16,264,797)
Net increase (decrease)		447,021	$	4,050,489		(685,199)	$	(6,991,424)

8. Transactions with affiliated company

As defined by the 1940 Act, an affiliated company is one in which the Fund owns 5% or more of the outstanding voting securities, or a company which is under common ownership or control with the Fund. The following company was considered an affiliated company for all or some portion of the year ended December 31, 2022. The following transactions were effected in such company for the year ended December 31, 2022.

	Affiliate Value at December 31,		Purchased		Sold
	2021		Cost	Shares	Proceeds		Shares
Western Asset Premier Institutional Government Reserves, Premium Shares	$	59,283,390	$136,234,122	136,234,122	$	195,517,512		195,517,512

(cont’d)	Realized Gain (Loss)	Dividend Income		Net Increase (Decrease) in Unrealized Appreciation (Depreciation)	Affiliate Value at December 31, 2022
Western Asset Premier Institutional Government Reserves, Premium Shares	—	$	33,424	—	—

9. Redemption facility

The Fund and certain other participating funds within the Trust, together with other U.S. registered and foreign investment funds (collectively, the “Borrowers”) managed by LMPFA or Franklin Resources, are borrowers in a joint syndicated senior unsecured credit facility totaling $2.675 billion (the “Global Credit Facility”). The Global Credit Facility provides a source of funds to the Borrowers for temporary and emergency purposes, including the ability to meet future unanticipated or unusually large redemption requests. Unless renewed, the Global Credit Facility will terminate on February 2, 2024.

Western Asset Mortgage Total Return Fund 2022 Annual Report 57

Notes to financial statements (cont’d)

Under the terms of the Global Credit Facility, the Fund shall, in addition to interest charged on any borrowings made by the Fund and other costs incurred by the Fund, pay its share of fees and expenses incurred in connection with the implementation and maintenance of the Global Credit Facility, based upon its relative share of the aggregate net assets of all the Borrowers, including an annual commitment fee of 0.15% based upon the unused portion of the Global Credit Facility. These fees are reflected in the Statement of Operations. The Fund did not utilize the Global Credit Facility during the year ended December 31, 2022.

10. Income tax information and distributions to shareholders

The tax character of distributions paid during the fiscal years ended December 31, was as follows:

	2022		2021
Distributions paid from:
Ordinary income	$	22,095,602	$	19,774,704

As of December 31, 2022, the components of distributable earnings (loss) on a tax basis were as follows:

Undistributed ordinary income — net	$	1,559,324
Deferred capital losses*		(94,059,614	)
Other book/tax temporary differences(a)		(332,838	)
Unrealized appreciation (depreciation)(b)		(75,317,183	)
Total distributable earnings (loss) — net	$	(168,150,311	)

* These capital losses have been deferred in the current year as either short-term or long-term losses. The losses will be deemed to occur on the first day of the next taxable year in the same character as they were originally deferred and will be available to offset future taxable capital gains.

^(a)  Other book/tax temporary differences are attributable to the tax deferral of losses on straddles, the realization for tax purposes of unrealized gains (losses) on certain futures contracts, book/tax differences in the treatment of certain passive activity losses from partnership investments and book/tax differences in the timing of the deductibility of various expenses.

^(b)  The difference between book-basis and tax-basis unrealized appreciation (depreciation) is attributable to the tax deferral of losses on wash sales, the difference between book and tax amortization methods for premium on fixed income securities and the difference between the book and tax cost basis in partnership investments.

11. Recent accounting pronouncement

In March 2020, the Financial Accounting Standards Board (FASB) issued Accounting Standards Update (ASU) No. 2020-04, Reference Rate Reform (Topic 848) – Facilitation of the Effects of Reference Rate Reform on Financial Reporting. In January 2021, the FASB issued ASU No. 2021-01, with further amendments to Topic 848. The amendments in the ASUs provide optional temporary accounting recognition and financial reporting relief from the effect of certain types of contract modifications due to the planned discontinuation of the LIBOR and other interbank-offered based reference rates as of the end of 2021 and 2023. The ASUs are effective for certain reference rate-related contract modifications that occur during the period March 12, 2020 through December 31, 2022. Management has reviewed the requirements and believes the adoption of these ASUs will not have a material impact on the financial statements.

58 Western Asset Mortgage Total Return Fund 2022 Annual Report

12. Other matters

The outbreak of the respiratory illness COVID-19 (commonly referred to as “coronavirus”) has continued to rapidly spread around the world, causing considerable uncertainty for the global economy and financial markets. The ultimate economic fallout from the pandemic, and the long-term impact on economies, markets, industries and individual issuers, are not known. The COVID-19 pandemic could adversely affect the value and liquidity of the Fund’s investments, impair the Fund’s ability to satisfy redemption requests, and negatively impact the Fund’s performance. In addition, the outbreak of COVID-19, and measures taken to mitigate its effects, could result in disruptions to the services provided to the Fund by its service providers.

*  *  *

The Fund’s investments, payment obligations, and financing terms may be based on floating rates, such as the London Interbank Offered Rate, or “LIBOR,” which is the offered rate for short-term Eurodollar deposits between major international banks. On March 5, 2021, the ICE Benchmark Administration, the administrator of LIBOR, stated that it will cease the publication of the overnight and one-, three-, six- and twelve-month USD LIBOR settings immediately following the LIBOR publication on Friday, June 30, 2023. All other LIBOR settings, including the one-week and two-month USD LIBOR settings, have ceased publication as of January 1, 2022. In March 2022, the U.S. federal government enacted legislation to establish a process for replacing LIBOR in certain existing contracts that do not already provide for the use of a clearly defined or practicable replacement benchmark rate as described in the legislation. Generally speaking, for contracts that do not contain a fallback provision as described in the legislation, a benchmark replacement recommended by the Federal Reserve Board will effectively automatically replace the USD LIBOR benchmark in the contract after June 30, 2023. The recommended benchmark replacement will be based on the Secured Overnight Financing Rate (SOFR) published by the Federal Reserve Bank of New York, including certain spread adjustments and benchmark replacement conforming changes. There remains uncertainty regarding the impact of the transition from LIBOR on the Fund’s transactions and the financial markets generally.

*  *  *

On February 24, 2022, Russia engaged in military actions in the sovereign territory of Ukraine. The current political and financial uncertainty surrounding Russia and Ukraine may increase market volatility and the economic risk of investing in securities in these countries and may also cause uncertainty for the global economy and broader financial markets. The ultimate fallout and long-term impact from these events are not known. The Fund will continue to assess the impact on valuations and liquidity and will take any potential actions needed in accordance with procedures approved by the Board of Trustees.

Western Asset Mortgage Total Return Fund 2022 Annual Report 59

Report of independent registered public accounting firm

To the Board of Trustees of Legg Mason Partners Income Trust and Shareholders of Western Asset Mortgage Total Return Fund

Opinion on the Financial Statements

We have audited the accompanying statement of assets and liabilities, including the schedule of investments, of Western Asset Mortgage Total Return Fund (one of the funds constituting Legg Mason Partners Income Trust, referred to hereafter as the “Fund”) as of December 31, 2022, the related statement of operations for the year ended December 31, 2022, the statement of changes in net assets for each of the two years in the period ended December 31, 2022, including the related notes, and the financial highlights for each of the five years in the period ended December 31, 2022 (collectively referred to as the “financial statements”). In our opinion, the financial statements present fairly, in all material respects, the financial position of the Fund as of December 31, 2022, the results of its operations for the year then ended, the changes in its net assets for each of the two years in the period ended December 31, 2022 and the financial highlights for each of the five years in the period ended December 31, 2022 in conformity with accounting principles generally accepted in the United States of America.

Basis for Opinion

These financial statements are the responsibility of the Fund’s management. Our responsibility is to express an opinion on the Fund’s financial statements based on our audits. We are a public accounting firm registered with the Public Company Accounting Oversight Board (United States) (PCAOB) and are required to be independent with respect to the Fund in accordance with the U.S. federal securities laws and the applicable rules and regulations of the Securities and Exchange Commission and the PCAOB.

We conducted our audits of these financial statements in accordance with the standards of the PCAOB. Those standards require that we plan and perform the audit to obtain reasonable assurance about whether the financial statements are free of material misstatement, whether due to error or fraud.

Our audits included performing procedures to assess the risks of material misstatement of the financial statements, whether due to error or fraud, and performing procedures that respond to those risks. Such procedures included examining, on a test basis, evidence regarding the amounts and disclosures in the financial statements. Our audits also included evaluating the accounting principles used and significant estimates made by management, as well as evaluating the overall presentation of the financial statements. Our procedures included confirmation of securities owned as of December 31, 2022 by correspondence with the custodian and brokers; when replies were not received from brokers, we performed other auditing procedures. We believe that our audits provide a reasonable basis for our opinion.

/s/PricewaterhouseCoopers LLP

Baltimore, Maryland

February 16, 2023

We have served as the auditor of one or more investment companies in the Franklin Templeton Group of Funds since 1948.

60 Western Asset Mortgage Total Return Fund 2022 Annual Report

Additional information (unaudited)

Information about Trustees and Officers

The business and affairs of Western Asset Mortgage Total Return Fund (the “Fund”) are conducted by management under the supervision and subject to the direction of its Board of Trustees. The business address of each Trustee is c/o Jane Trust, Franklin Templeton, 100 International Drive, 11th Floor, Baltimore, Maryland 21202.

Information pertaining to the Trustees and officers of the Fund is set forth below. The Statement of Additional Information includes additional information about Trustees and is available, without charge, upon request by calling the Fund at 877-6LM-FUND/656-3863.

Independent Trustees†
Robert Abeles, Jr.
Year of birth	1945
Position(s) with Fund	Trustee
Term of office1 and length of time served2	Since 2013
Principal occupation(s) during the past five years	Senior Vice President Emeritus (since 2016) and formerly, Senior Vice President, Finance and Chief Financial Officer (2009 to 2016) at University of Southern California; Board Member of Excellent Education Development (since 2012); and formerly Board Member of Great Public Schools Now (2018 to 2022)
Number of funds in fund complex overseen by Trustee3	51
Other Trusteeships held by Trustee during the past five years	None
Jane F. Dasher
Year of birth	1949
Position(s) with Fund	Trustee
Term of office1 and length of time served2	Since 1999
Principal occupation(s) during the past five years	Director (since 2022) and formerly Chief Financial Officer, Long Light Capital, LLC, formerly known as Korsant Partners, LLC (a family investment company) (since 1997)
Number of funds in fund complex overseen by Trustee3	51
Other Trusteeships held by Trustee during the past five years	Director, Visual Kinematics, Inc. (2018 to 2022)
Anita L. DeFrantz
Year of birth	1952
Position(s) with Fund	Trustee
Term of office1 and length of time served2	Since 1998
Principal occupation(s) during the past five years	President of Tubman Truth Corp. (since 2015); President Emeritus (since 2015) and formerly, President (1987 to 2015) and Director (1990 to 2015) of LA84 (formerly Amateur Athletic Foundation of Los Angeles); Member (since 1986), Member of the Executive Board (since 2013) and Vice President (since 2017) of the International Olympic Committee
Number of funds in fund complex overseen by Trustee3	51
Other Trusteeships held by Trustee during the past five years	None

Western Asset Mortgage Total Return Fund 61

Additional information (unaudited) (cont’d)

Information about Trustees and Officers

Independent Trustees† (cont’d)
Susan B. Kerley
Year of birth	1951
Position(s) with Fund	Trustee
Term of office1 and length of time served2	Since 1992
Principal occupation(s) during the past five years	Investment Consulting Partner, Strategic Management Advisors, LLC (investment consulting) (since 1990)
Number of funds in fund complex overseen by Trustee3	51
Other Trusteeships held by Trustee during the past five years	Director and Trustee (since 1990) and Chairman (since 2017 and 2005 to 2012) of various series of MainStay Family of Funds (66 funds); formerly, Investment Company Institute (ICI) Board of Governors (2006 to 2014); ICI Executive Committee (2011 to 2014); and Chairman of the Independent Directors Council (2012 to 2014)
Michael Larson
Year of birth	1959
Position(s) with Fund	Trustee
Term of office1 and length of time served2	Since 2004
Principal occupation(s) during the past five years	Chief Investment Officer for William H. Gates III (since 1994)4
Number of funds in fund complex overseen by Trustee3	51
Other Trusteeships held by Trustee during the past five years	Republic Services, Inc. (since 2009); Fomento Economico Mexicano, SAB (since 2011); Ecolab Inc. (since 2012); and formerly, AutoNation, Inc. (2010 to 2018)
Avedick B. Poladian
Year of birth	1951
Position(s) with Fund	Trustee
Term of office1 and length of time served2	Since 2007
Principal occupation(s) during the past five years	Director and Advisor (since 2017) and former Executive Vice President and Chief Operating Officer (2002 to 2016) of Lowe Enterprises, Inc. (privately held real estate and hospitality firm); formerly, Partner, Arthur Andersen, LLP (1974 to 2002)
Number of funds in fund complex overseen by Trustee3	51
Other Trusteeships held by Trustee during the past five years	Occidental Petroleum Corporation (since 2008); California Resources Corporation (2014 to 2021); and Public Storage (since 2010)

62 Western Asset Mortgage Total Return Fund

Independent Trustees† (cont’d)
William E.B. Siart
Year of birth	1946
Position(s) with Fund	Trustee and Chairman of the Board
Term of office1 and length of time served2	Since 1997 (Chairman of the Board since 2020)
Principal occupation(s) during the past five years	Chairman of Excellent Education Development (since 2000); formerly, Chairman of Great Public Schools Now (2015 to 2020); Trustee of The Getty Trust (since 2005 to 2017); Chairman of Walt Disney Concert Hall, Inc. (1998 to 2006)
Number of funds in fund complex overseen by Trustee3	51
Other Trusteeships held by Trustee during the past five years	Trustee, University of Southern California (since 1994); and formerly, Member of Board of United States Golf Association, Executive Committee Member (2017 to 2021)
Jaynie Miller Studenmund
Year of birth	1954
Position(s) with Fund	Trustee
Term of office1 and length of time served2	Since 2004
Principal occupation(s) during the past five years	Corporate Board Member and Advisor (since 2004); formerly, Chief Operating Officer of Overture Services, Inc. (publicly traded internet company that created search engine marketing) (2001 to 2004); President and Chief Operating Officer, PayMyBills (internet innovator in bill presentment/payment space) (1999 to 2001); Executive vice president for consumer and business banking for three national financial institutions (1984 to 1997)
Number of funds in fund complex overseen by Trustee3	51
Other Trusteeships held by Trustee during the past five years	Director of Pacific Premier Bancorp Inc. and Pacific Premier Bank (since 2019); Director of EXL (operations management and analytics company) (since 2018); Director of CoreLogic, Inc. (information, analytics and business services company) (2012 to 2021); formerly, Director of Pinnacle Entertainment, Inc. (gaming and hospitality company) (2012 to 2018); and Director of LifeLock, Inc. (identity theft protection company) (2015 to 2017)
Peter J. Taylor
Year of birth	1958
Position(s) with Fund	Trustee
Term of office1 and length of time served2	Since 2019
Principal occupation(s) during the past five years	Retired; formerly, President, ECMC Foundation (nonprofit organization) (2014 to 2023); and Executive Vice President and Chief Financial Officer for University of California system (2009 to 2014)
Number of funds in fund complex overseen by Trustee3	51
Other Trusteeships held by Trustee during the past five years	Director of 23andMe, Inc. (genetics and health care services company) (since 2021); Director of Pacific Mutual Holding Company5 (since 2016); Member of the Board of Trustees of California State University system (2015 to 2022); Ralph M. Parson Foundation (since 2015); Kaiser Family Foundation (2012 to 2022); and Edison International (since 2011)

Western Asset Mortgage Total Return Fund 63

Additional information (unaudited) (cont’d)

Information about Trustees and Officers

Interested Trustee
Ronald L. Olson6
Year of birth	1941
Position(s) with Fund	Trustee
Term of office1 and length of time served2	Since 2005
Principal occupation(s) during the past five years	Partner of Munger, Tolles & Olson LLP (law partnership) (since 1968)
Number of funds in fund complex overseen by Trustee3	51
Other Trusteeships held by Trustee during the past five years	Director of Berkshire Hathaway, Inc. (since 1997); and Director of Provivi, Inc. (since 2017)
Interested Trustee and Officer
Jane Trust, CFA7
Year of birth	1962
Position(s) with Fund	Trustee, President and Chief Executive Officer
Term of office1 and length of time served2	Since 2015
Principal occupation(s) during the past five years	Senior Vice President, Fund Board Management, Franklin Templeton (since 2020); Officer and/or Trustee/Director of 127 funds associated with LMPFA or its affiliates (since 2015); President and Chief Executive Officer of LMPFA (since 2015); formerly, Senior Managing Director (2018 to 2020) and Managing Director (2016 to 2018) of Legg Mason & Co., LLC (“Legg Mason & Co.”); Senior Vice President of LMPFA (2015)
Number of funds in fund complex overseen by Trustee3	127
Other Trusteeships held by Trustee during the past five years	None
Additional Officers
Ted P. Becker Franklin Templeton 280 Park Avenue, 8th Floor, New York, NY 10017
Year of birth	1951
Position(s) with Fund	Chief Compliance Officer
Term of office1 and length of time served2	Since 2007
Principal occupation(s) during the past five years	Vice President, Global Compliance of Franklin Templeton (since 2020); Chief Compliance Officer of LMPFA (since 2006); Chief Compliance Officer of certain funds associated with Legg Mason & Co. or its affiliates (since 2006); formerly, Director of Global Compliance at Legg Mason, Inc. (2006 to 2020); Managing Director of Compliance of Legg Mason & Co. (2005 to 2020)

64 Western Asset Mortgage Total Return Fund

Additional Officers (cont’d)
Susan Kerr Franklin Templeton 280 Park Avenue, 8th Floor, New York, NY 10017
Year of birth	1949
Position(s) with Fund	Chief Anti-Money Laundering Compliance Officer
Term of office1 and length of time served2	Since 2013
Principal occupation(s) during the past five years	Senior Compliance Analyst, Franklin Templeton (since 2020); Chief Anti-Money Laundering Compliance Officer of certain funds associated with Legg Mason & Co. or its affiliates (since 2013) and Anti-Money Laundering Compliance Officer (since 2012), Senior Compliance Officer (since 2011) and Assistant Vice President (since 2010) of Franklin Distributors, LLC; formerly, Assistant Vice President of Legg Mason & Co. (2010 to 2020)
Marc A. De Oliveira Franklin Templeton 100 First Stamford Place, 6th Floor, Stamford, CT 06902
Year of birth	1971
Position(s) with Fund	Secretary and Chief Legal Officer
Term of office1 and length of time served2	Since 2020
Principal occupation(s) during the past five years	Associate General Counsel of Franklin Templeton (since 2020); Assistant Secretary of certain funds associated with Legg Mason & Co. or its affiliates (since 2006); formerly, Managing Director (2016 to 2020) and Associate General Counsel of Legg Mason & Co. (2005 to 2020)
Thomas C. Mandia Franklin Templeton 100 First Stamford Place, 6th Floor, Stamford, CT 06902
Year of birth	1962
Position(s) with Fund	Senior Vice President
Term of office1 and length of time served2	Since 2020
Principal occupation(s) during the past five years	Senior Associate General Counsel of Franklin Templeton (since 2020); Secretary of LMPFA (since 2006); Assistant Secretary of certain funds associated with Legg Mason & Co. or its affiliates (since 2006); Secretary of LM Asset Services, LLC (“LMAS”) (since 2002) and Legg Mason Fund Asset Management, Inc. (“LMFAM”) (since 2013) (formerly registered investment advisers); formerly, Managing Director and Deputy General Counsel of Legg Mason & Co. (2005 to 2020)

Western Asset Mortgage Total Return Fund 65

Additional information (unaudited) (cont’d)

Information about Trustees and Officers

Additional Officers (cont’d)
Christopher Berarducci Franklin Templeton 280 Park Avenue, 8th Floor, New York, NY 10017
Year of birth	1974
Position(s) with Fund	Treasurer and Principal Financial Officer
Term of office1 and length of time served2	Since 2019
Principal occupation(s) during the past five years	Vice President, Fund Administration and Reporting, Franklin Templeton (since 2020); Treasurer (since 2010) and Principal Financial Officer (since 2019) of certain funds associated with Legg Mason & Co. or its affiliates; formerly, Managing Director (2020), Director (2015 to 2020), and Vice President (2011 to 2015) of Legg Mason & Co.
Jeanne M. Kelly Franklin Templeton 280 Park Avenue, 8th Floor, New York, NY 10017
Year of birth	1951
Position(s) with Fund	Senior Vice President
Term of office1 and length of time served2	Since 2007
Principal occupation(s) during the past five years	U.S. Fund Board Team Manager, Franklin Templeton (since 2020); Senior Vice President of certain funds associated with Legg Mason & Co. or its affiliates (since 2007); Senior Vice President of LMPFA (since 2006); President and Chief Executive Officer of LMAS and LMFAM (since 2015); formerly, Managing Director of Legg Mason & Co. (2005 to 2020); Senior Vice President of LMFAM (2013 to 2015)

† Trustees who are not “interested persons” of the Fund within the meaning of Section 2(a)(19) of the Investment Company Act of 1940, as amended (the “1940 Act”).

¹  Each Trustee and officer serves until his or her respective successor has been duly elected and qualified or until his or her earlier death, resignation, retirement or removal.

²  Indicates the earliest year in which the Trustee became a board member for a fund in the Legg Mason fund complex or the officer took such office.

³  Each board member also serves as a Director of Western Asset Investment Grade Income Fund Inc. and a Trustee of Western Asset Premier Bond Fund (closed-end investment companies), which are considered part of the same fund complex. Additionally, each board member serves as a Trustee of Western Asset Inflation-Linked Income Fund and Western Asset Inflation-Linked Opportunities & Income Fund, closed-end investment companies that are part of the same fund complex.

⁴  Mr. Larson is the chief investment officer for William H. Gates III and in that capacity oversees the investments of Mr. Gates and the investments of the Bill and Melinda Gates Foundation Trust (such combined investments are referred to as the “Accounts”). Since 1997, Western Asset has provided discretionary investment advice with respect to one or more Accounts.

⁵  Western Asset and its affiliates provide investment advisory services with respect to registered investment companies sponsored by an affiliate of Pacific Mutual Holding Company (“Pacific Holdings”). Affiliates of Pacific Holdings receive compensation from LMPFA or its affiliates for shareholder or distribution services provided with respect to registered investment companies for which Western Asset or its affiliates serve as investment adviser.

66 Western Asset Mortgage Total Return Fund

⁶  Mr. Olson is an “interested person” of the Fund, as defined in the 1940 Act, because his law firm has provided legal services to Western Asset.

⁷  Ms. Trust is an “interested person” of the Fund, as defined in the 1940 Act, because of her position with LMPFA and/or certain of its affiliates.

Western Asset Mortgage Total Return Fund 67

Important tax information (unaudited)

By mid-February, tax information related to a shareholder’s proportionate share of distributions paid during the preceding calendar year will be received, if applicable. Please also refer to www.franklintempleton.com for per share tax information related to any distributions paid during the preceding calendar year. Shareholders are advised to consult with their tax advisors for further information on the treatment of these amounts on their tax returns.

The following tax information for the Fund is required to be furnished to shareholders with respect to income earned and distributions paid during its fiscal year.

The Fund hereby reports the following amounts, or if subsequently determined to be different, the maximum allowable amounts, for the fiscal year ended December 31, 2022:

	Pursuant to:		Amount Reported
Section 163(j) Interest Earned	§	163(j)		$26,202,555

68 Western Asset Mortgage Total Return Fund

Western Asset

Mortgage Total Return Fund

Trustees

Robert Abeles, Jr.

Jane F. Dasher

Anita L. DeFrantz

Susan B. Kerley

Michael Larson

Ronald L. Olson

Avedick B. Poladian

William E.B. Siart

Chairman

Jaynie M. Studenmund

Peter J. Taylor

Jane Trust

Investment manager

Legg Mason Partners Fund Advisor, LLC

Subadviser

Western Asset Management Company, LLC

Distributor

Franklin Distributors, LLC

Custodian

The Bank of New York Mellon

Transfer agent

Franklin Templeton Investor Services, LLC

3344 Quality Drive

Rancho Cordova, CA 95670-7313

Independent registered public accounting firm

PricewaterhouseCoopers LLP Baltimore, MD

Western Asset Mortgage Total Return Fund

The Fund is a separate investment series of Legg Mason Partners Income Trust, a Maryland statutory trust.

Western Asset Mortgage Total Return Fund

Legg Mason Funds

620 Eighth Avenue, 47^th Floor

New York, NY 10018

The Fund files its complete schedule of portfolio holdings with the Securities and Exchange Commission (“SEC”) for the first and third quarters of each fiscal year as an exhibit to its reports on Form N-PORT. The Fund’s Forms N-PORT are available on the SEC’s website at www.sec.gov. To obtain information on Form N-PORT, shareholders can call the Fund at 877-6LM-FUND/656-3863.

Information on how the Fund voted proxies relating to portfolio securities during the prior 12-month period ended June 30th of each year and a description of the policies and procedures that the Fund uses to determine how to vote proxies related to portfolio transactions are available (1) without charge, upon request, by calling the Fund at 877-6LM-FUND/656-3863, (2) at www.franklintempleton.com and (3) on the SEC’s website at www.sec.gov.

This report is submitted for the general information of the shareholders of Western Asset Mortgage Total Return Fund. This report is not authorized for distribution to prospective investors in the Fund unless preceded or accompanied by a current prospectus.

Investors should consider the Fund’s investment objectives, risks, charges and expenses carefully before investing. The prospectus contains this and other important information about the Fund. Please read the prospectus carefully before investing.

www.franklintempleton.com

© 2023 Franklin Distributors, LLC, Member FINRA/SIPC. All rights reserved.

Legg Mason Funds Privacy and Security Notice

Your Privacy Is Our Priority

Franklin Templeton* is committed to safeguarding your personal information. This notice is designed to provide you with a summary of the non-public personal information Franklin Templeton may collect and maintain about current or former individual investors; our policy regarding the use of that information; and the measures we take to safeguard the information. We do not sell individual investors’ non-public personal information to anyone and only share it as described in this notice.

Information We Collect

When you invest with us, you provide us with your non-public personal information. We collect and use this information to service your accounts and respond to your requests. The non-public personal information we may collect falls into the following categories:

• Information we receive from you or your financial intermediary on applications or other forms, whether we receive the form in writing or electronically. For example, this information may include your name, address, tax identification number, birth date, investment selection, beneficiary information, and your personal bank account information and/or email address if you have provided that information.

• Information about your transactions and account history with us, or with other companies that are part of Franklin Templeton, including transactions you request on our website or in our app. This category also includes your communications to us concerning your investments.

• Information we receive from third parties (for example, to update your address if you move, obtain or verify your email address or obtain additional information to verify your identity).

• Information collected from you online, such as your IP address or device ID and data gathered from your browsing activity and location. (For example, we may use cookies to collect device and browser information so our website recognizes your online preferences and device information.) Our website contains more information about cookies and similar technologies and ways you may limit them.

• Other general information that we may obtain about you such as demographic information.

Disclosure Policy

To better service your accounts and process transactions or services you requested, we may share non-public personal information with other Franklin Templeton companies. From time to time we may also send you information about products/services offered by other Franklin Templeton companies although we will not share your non-public personal information with these companies without first offering you the opportunity to prevent that sharing.

We will only share non-public personal information with outside parties in the limited circumstances permitted by law. For example, this includes situations where we need to share information with companies who work on our behalf to service or maintain your account or process transactions you requested, when the disclosure is to companies assisting us with our own marketing efforts, when the disclosure is to a party representing you, or when required by law (for example, in response to legal process). Additionally, we will ensure that any outside

NOT PART OF THE ANNUAL REPORT

Legg Mason Funds Privacy and Security Notice (cont’d)

companies working on our behalf, or with whom we have joint marketing agreements, are under contractual obligations to protect the confidentiality of your information, and to use it only to provide the services we asked them to perform.

Confidentiality and Security

Our employees are required to follow procedures with respect to maintaining the confidentiality of our investors’ non-public personal information. Additionally, we maintain physical, electronic and procedural safeguards to protect the information. This includes performing ongoing evaluations of our systems containing investor information and making changes when appropriate.

At all times, you may view our current privacy notice on our website at franklintempleton.com or contact us for a copy at (800) 632-2301.

*For purposes of this privacy notice Franklin Templeton shall refer to the following entities:

Fiduciary Trust International of the South (FTIOS), as custodian for individual retirement plans Franklin Advisers, Inc.

Franklin Distributors, LLC, including as program manager of the Franklin Templeton 529 College Savings Plan and the NJBEST 529 College Savings Plan

Franklin Mutual Advisers, LLC

Franklin, Templeton and Mutual Series Funds

Franklin Templeton Institutional, LLC

Franklin Templeton Investments Corp., Canada

Franklin Templeton Investments Management, Limited UK

Franklin Templeton Portfolio Advisors, Inc.

Legg Mason Funds serviced by Franklin Templeton Investor Services, LLC

Templeton Asset Management, Limited

Templeton Global Advisors, Limited

Templeton Investment Counsel, LLC

If you are a customer of other Franklin Templeton affiliates and you receive notices from them, you will need to read those notices separately.

NOT PART OF THE ANNUAL REPORT

www.franklintempleton.com

© 2023 Franklin Distributors, LLC, Member FINRA/SIPC. All rights reserved.

FD0316 2/23 SR23-4597

ITEM 2. CODE OF ETHICS.

The registrant has adopted a code of ethics that applies to the registrant’s principal executive officer, principal financial officer, principal accounting officer or controller.

ITEM 3. AUDIT COMMITTEE FINANCIAL EXPERT.

The Board of Trustees of the registrant has determined that Robert Abeles, Jr., possess the technical attributes identified in Instruction 2(b) of Item 3 to Form N-CSR to qualify an “audit committee financial experts,” and has designated Mr. Abeles, Jr. as the Audit Committee’s financial experts. Mr. Abeles, Jr. is an “independent” Trustees pursuant to paragraph (a) (2) of Item 3 to Form N-CSR.

ITEM 4. PRINCIPAL ACCOUNTANT FEES AND SERVICES.

a) Audit-Related Fees. The aggregate fees billed in the last two fiscal years ending December 31, 2021 and December 31, 2022 (the “Reporting Periods”) for professional services rendered by the Registrant’s principal accountant (the “Auditor”) for the audit of the Registrant’s annual financial statements, or services that are normally provided by the Auditor in connection with the statutory and regulatory filings or engagements for the Reporting Periods, were $161,623 in December 31, 2021 and $124,686 in December 31, 2022.

b) Audit-Related Fees. The aggregate fees billed in the Reporting Period for assurance and related services by the Auditor that are reasonably related to the performance of the Registrant’s financial statements were $0 in December 31, 2021 and $0 in December 31, 2022.

(c) Tax Fees. The aggregate fees billed in the Reporting Periods for professional services rendered by the Auditor for tax compliance, tax advice and tax planning (“Tax Services”) were $40,000 in December 31, 2021 and $30,000 in December 31, 2022. These services consisted of (i) review or preparation of U.S. federal, state, local and excise tax returns; (ii) U.S. federal, state and local tax planning, advice and assistance regarding statutory, regulatory or administrative developments, and (iii) tax advice regarding tax qualification matters and/or treatment of various financial instruments held or proposed to be acquired or held. There were no fees billed for tax services by the Auditors to service affiliates during the Reporting Periods that required pre-approval by the Audit Committee.

d) All Other Fees. The aggregate fees billed in the Reporting Periods for products and services provided by the Auditor, other than the services reported in paragraphs (a) through (c) for the Item 4 for the Legg Mason Partners Income Trust, were $0 in December 31, 2021 and $0 in December 31, 2022.

All Other Fees. There were no other non-audit services rendered by the Auditor to Legg Mason Partners Fund Advisors, LLC (“LMPFA”), and any entity controlling, controlled by or under common control with LMPFA that provided ongoing services to Legg Mason Partners Income Trust requiring pre-approval by the Audit Committee in the Reporting Period.

(e) Audit Committee’s pre–approval policies and procedures described in paragraph (c) (7) of Rule 2-01 of Regulation S-X.

(1) The Charter for the Audit Committee (the “Committee”) of the Board of each registered investment company (the “Fund”) advised by LMPFA or one of their affiliates (each, an “Adviser”) requires that the Committee shall approve (a) all audit and permissible non-audit services to be provided to the Fund and (b) all permissible non-audit services to be provided by the Fund’s independent auditors to the Adviser and any Covered Service Providers if the engagement relates directly to the operations and financial reporting of the Fund. The Committee may implement policies and procedures by which such services are approved other than by the full Committee.

The Committee shall not approve non-audit services that the Committee believes may impair the independence of the auditors. As of the date of the approval of this Audit Committee Charter, permissible non-audit services include any professional services (including tax services), that are not prohibited services as described below, provided to the Fund by the independent auditors, other than those provided to the Fund in connection with an audit or a review of the financial statements of the Fund. Permissible non-audit services may not include: (i) bookkeeping or other services related to the accounting records or financial statements of the Fund; (ii) financial information systems design and implementation; (iii) appraisal or valuation services, fairness opinions or contribution-in-kind reports; (iv) actuarial services; (v) internal audit outsourcing services; (vi) management functions or human resources; (vii) broker or dealer, investment adviser or investment banking services; (viii) legal services and expert services unrelated to the audit; and (ix) any other service the Public Company Accounting Oversight Board determines, by regulation, is impermissible.

Pre-approval by the Committee of any permissible non-audit services is not required so long as: (i) the aggregate amount of all such permissible non-audit services provided to the Fund, the Adviser and any service providers controlling, controlled by or under common control with the Adviser that provide ongoing services to the Fund (“Covered Service Providers”) constitutes not more than 5% of the total amount of revenues paid to the independent auditors during the fiscal year in which the permissible non-audit services are provided to (a) the Fund, (b) the Adviser and (c) any entity controlling, controlled by or under common control with the Adviser that provides ongoing services to the Fund during the fiscal year in which the services are provided that would have to be approved by the Committee; (ii) the permissible non-audit services were not recognized by the Fund at the time of the engagement to be non-audit services; and (iii) such services are promptly brought to the attention of the Committee and approved by the Committee (or its delegate(s)) prior to the completion of the audit.

(2) None of the services described in paragraphs (b) through (d) of this Item were performed in reliance on paragraph (c)(7)(i)(C) of Rule 2-01 of Regulation S-X.

(f) Not applicable.

(g) Non-audit fees billed by the Auditor for services rendered to Legg Mason Partners Income Trust, LMPFA and any entity controlling, controlled by, or under common control with LMPFA that provides ongoing services to Legg Mason Partners Income Trust during the reporting period were $343,489 in December 31, 2021 and $350,359 in December 31, 2022.

(h) Yes. Legg Mason Partners Income Trust’s Audit Committee has considered whether the provision of non-audit services that were rendered to Service Affiliates, which were not pre-approved (not requiring pre-approval), is compatible with maintaining the Accountant’s independence. All services provided by the Auditor to the Legg Mason Partners Income Trust or to Service Affiliates, which were required to be pre-approved, were pre-approved as required.

(i) Not applicable.

(j) Not applicable.

ITEM 5. AUDIT COMMITTEE OF LISTED REGISTRANTS.

a) The independent board members are acting as the registrant’s audit committee as specified in Section 3(a)(58)(B) of the Exchange Act. The Audit Committee consists of the following Board members:

Robert Abeles, Jr.

Jane F. Dasher

Anita L. DeFrantz

Susan B. Kerley

Michael Larson

Avedick B. Poladian

William E.B. Siart

Jaynie M. Studenmund

Peter J. Taylor

b) Not applicable

ITEM 6. SCHEDULE OF INVESTMENTS.

Included herein under Item 1.

ITEM 7. DISCLOSURE OF PROXY VOTING POLICIES AND PROCEDURES FOR CLOSED-END MANAGEMENT INVESTMENT COMPANIES.

Not applicable.

ITEM 8. PORTFOLIO MANAGERS OF CLOSED-END MANAGEMENT INVESTMENT COMPANIES.

Not applicable.

ITEM 9. PURCHASES OF EQUITY SECURITIES BY CLOSED-END MANAGEMENT INVESTMENT COMPANY AND AFFILIATED PURCHASERS.

Not applicable.

ITEM 10. SUBMISSION OF MATTERS TO A VOTE OF SECURITY HOLDERS.

Not applicable.

ITEM 11. CONTROLS AND PROCEDURES.

(a) The registrant’s principal executive officer and principal financial officer have concluded that the registrant’s disclosure controls and procedures (as defined in Rule 30a- 3(c) under the Investment Company Act of 1940, as amended (the “1940 Act”)) are effective as of a date within 90 days of the filing date of this report that includes the disclosure required by this paragraph, based on their evaluation of the disclosure controls and procedures required by Rule 30a-3(b) under the 1940 Act and 15d-15(b) under the Securities Exchange Act of 1934.

(b) There were no changes in the registrant’s internal control over financial reporting (as defined in Rule 30a-3(d) under the 1940 Act) that occurred during the period covered by this report that have materially affected, or are likely to materially affect the registrant’s internal control over financial reporting.

ITEM 12. DISCLOSURE OF SECURITIES LENDING ACTIVITIES FOR CLOSED-END MANAGEMENT INVESTMENT COMPANIES.

Not applicable.

ITEM 13. EXHIBITS.

(a) (1) Code of Ethics attached hereto.

Exhibit 99.CODE ETH

(a) (2) Certifications pursuant to section 302 of the Sarbanes-Oxley Act of 2002 attached hereto.

Exhibit 99.CERT

(b) Certifications pursuant to Section 906 of the Sarbanes-Oxley Act of 2002 attached hereto.

Exhibit 99.906CERT

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934 and the Investment Company Act of 1940, the registrant has duly caused this Report to be signed on its behalf by the undersigned, there unto duly authorized.

Legg Mason Partners Income Trust
By:	/s/ Jane Trust
	Jane Trust
	Chief Executive Officer
Date:	February 22, 2023

Pursuant to the requirements of the Securities Exchange Act of 1934 and the Investment Company Act of 1940, this report has been signed below by the following persons on behalf of the registrant and in the capacities and on the dates indicated.

By:	/s/ Jane Trust
	Jane Trust
	Chief Executive Officer
Date:	February 22, 2023

By:	/s/ Christopher Berarducci
	Christopher Berarducci
	Principal Financial Officer
Date:	February 22, 2023