497

Bingham McCutchen LLP

One Federal Street

Boston, Massachusetts 02110

June 20, 2012

VIA EDGAR

Securities and Exchange Commission

100 F Street, NE

Washington, DC 20549

Re: Legg Mason Western Asset Core Bond Fund (the “Fund”), a series of Legg Mason Partners

Income Trust (the “Registrant”)

Securities Act File No. 2-96408

Investment Company Act File No. 811-04254

Ladies and Gentlemen:

On behalf of the Registrant and pursuant to Rule 497(e) under the Securities Act of 1933, as amended, attached for filing are exhibits containing in interactive data format the risk/return summary information that appears in a supplement dated May 31, 2012 to the Fund’s Prospectus dated December 1, 2011.

Any questions or comments on the filing should be directed to the undersigned at (617) 951-8029 or Matthew Prasse

at (617) 951-8693.

Sincerely,

/s/ Michelle R. Cirillo

Michelle R. Cirillo

Enclosures

cc: Rosemary D. Emmens, Legg Mason & Co., LLC

XML

LEGG MASON PARTNERS INCOME TRUST

SUPPLEMENT DATED MAY 31, 2012

TO THE SUMMARY PROSPECTUS AND PROSPECTUS, EACH DATED DECEMBER 1, 2011, OF

LEGG MASON WESTERN ASSET CORE BOND FUND

The following supplements, and to the extent inconsistent therewith, supersedes the information contained in the fund’s Summary Prospectus and Prospectus.

Effective August 1, 2012, Class C shares will be reclassified as Class C1 shares. Except as noted below, all references to Class C shares in the fund’s Summary Prospectus and Prospectus shall instead be read as referring to Class C1 shares. Following the reclassification, Class C1 shares will not be available for purchase by new or existing investors (except for certain retirement plan programs authorized by LMIS prior to August 1, 2012). Class C1 shares will continue to be available for dividend reinvestment and incoming exchanges.

Effective August 1, 2012, Class R1 shares will be reclassified as new Class C shares. All references to Class R1 shares in the fund’s Summary Prospectus and Prospectus shall instead be read as referring to Class C shares. In addition, all existing references to Class C shares in the section of the fund’s Prospectus titled “Choosing a class of shares to buy” shall refer to new Class C shares.

Effective August 1, 2012, the following amends anything to the contrary in the section of the fund’s Summary Prospectus and Prospectus titled “Fees and expenses of the fund”:

Shareholder fees (fees paid directly from your investment)
	Class C (Class R1 prior to August 1, 2012)
Maximum sales charge (load) imposed on purchases (as a % of offering price) (%)	None
Maximum deferred sales charge (load) (as a % of the lower of net asset value at purchase or redemption) (%)	1.00
Small account fee1	$15
1    If your shares are held in a direct account and the value of your account is below $1,000, the fund may charge you a fee of $3.75 per account that is determined and assessed quarterly (with an annual maximum of $15.00 per account). Direct accounts generally include accounts held in the name of the individual investor on the fund’s books and records.

Number of years you own your shares ($)	1 year		3 years		5 years		10 years
Class C (Class R1 prior to August 1, 2012) (with redemption at end of period)		286		576		991		2,148
Class C (Class R1 prior to August 1, 2012) (without redemption at end of period)		186		576		991		2,148

XML

Label

Element

Value

Risk/Return:

rr_RiskReturnAbstract

Registrant Name

dei_EntityRegistrantName

LEGG MASON PARTNERS INCOME TRUST

Prospectus Date

rr_ProspectusDate

Dec. 01, 2011

Supplement [Text Block]

lmpit2_SupplementTextBlock

LEGG MASON PARTNERS INCOME TRUST

SUPPLEMENT DATED MAY 31, 2012

TO THE SUMMARY PROSPECTUS AND PROSPECTUS, EACH DATED DECEMBER 1, 2011, OF

LEGG MASON WESTERN ASSET CORE BOND FUND

The following supplements, and to the extent inconsistent therewith, supersedes the information contained in the fund’s Summary Prospectus and Prospectus.

Effective August 1, 2012, Class C shares will be reclassified as Class C1 shares. Except as noted below, all references to Class C shares in the fund’s Summary Prospectus and Prospectus shall instead be read as referring to Class C1 shares. Following the reclassification, Class C1 shares will not be available for purchase by new or existing investors (except for certain retirement plan programs authorized by LMIS prior to August 1, 2012). Class C1 shares will continue to be available for dividend reinvestment and incoming exchanges.

Effective August 1, 2012, Class R1 shares will be reclassified as new Class C shares. All references to Class R1 shares in the fund’s Summary Prospectus and Prospectus shall instead be read as referring to Class C shares. In addition, all existing references to Class C shares in the section of the fund’s Prospectus titled “Choosing a class of shares to buy” shall refer to new Class C shares.

Effective August 1, 2012, the following amends anything to the contrary in the section of the fund’s Summary Prospectus and Prospectus titled “Fees and expenses of the fund”:

Shareholder fees (fees paid directly from your investment)
	Class C (Class R1 prior to August 1, 2012)
Maximum sales charge (load) imposed on purchases (as a % of offering price) (%)	None
Maximum deferred sales charge (load) (as a % of the lower of net asset value at purchase or redemption) (%)	1.00
Small account fee1	$15
1    If your shares are held in a direct account and the value of your account is below $1,000, the fund may charge you a fee of $3.75 per account that is determined and assessed quarterly (with an annual maximum of $15.00 per account). Direct accounts generally include accounts held in the name of the individual investor on the fund’s books and records.

Number of years you own your shares ($)	1 year		3 years		5 years		10 years
Class C (Class R1 prior to August 1, 2012) (with redemption at end of period)		286		576		991		2,148
Class C (Class R1 prior to August 1, 2012) (without redemption at end of period)		186		576		991		2,148

Legg Mason Western Asset Core Bond Fund

Risk/Return:

rr_RiskReturnAbstract

Supplement [Text Block]

lmpit2_SupplementTextBlock

LEGG MASON PARTNERS INCOME TRUST

SUPPLEMENT DATED MAY 31, 2012

TO THE SUMMARY PROSPECTUS AND PROSPECTUS, EACH DATED DECEMBER 1, 2011, OF

LEGG MASON WESTERN ASSET CORE BOND FUND

The following supplements, and to the extent inconsistent therewith, supersedes the information contained in the fund’s Summary Prospectus and Prospectus.

Effective August 1, 2012, Class C shares will be reclassified as Class C1 shares. Except as noted below, all references to Class C shares in the fund’s Summary Prospectus and Prospectus shall instead be read as referring to Class C1 shares. Following the reclassification, Class C1 shares will not be available for purchase by new or existing investors (except for certain retirement plan programs authorized by LMIS prior to August 1, 2012). Class C1 shares will continue to be available for dividend reinvestment and incoming exchanges.

Effective August 1, 2012, Class R1 shares will be reclassified as new Class C shares. All references to Class R1 shares in the fund’s Summary Prospectus and Prospectus shall instead be read as referring to Class C shares. In addition, all existing references to Class C shares in the section of the fund’s Prospectus titled “Choosing a class of shares to buy” shall refer to new Class C shares.

Effective August 1, 2012, the following amends anything to the contrary in the section of the fund’s Summary Prospectus and Prospectus titled “Fees and expenses of the fund”:

Shareholder fees (fees paid directly from your investment)
	Class C (Class R1 prior to August 1, 2012)
Maximum sales charge (load) imposed on purchases (as a % of offering price) (%)	None
Maximum deferred sales charge (load) (as a % of the lower of net asset value at purchase or redemption) (%)	1.00
Small account fee1	$15
1    If your shares are held in a direct account and the value of your account is below $1,000, the fund may charge you a fee of $3.75 per account that is determined and assessed quarterly (with an annual maximum of $15.00 per account). Direct accounts generally include accounts held in the name of the individual investor on the fund’s books and records.

Number of years you own your shares ($)	1 year		3 years		5 years		10 years
Class C (Class R1 prior to August 1, 2012) (with redemption at end of period)		286		576		991		2,148
Class C (Class R1 prior to August 1, 2012) (without redemption at end of period)		186		576		991		2,148

XML

Document and Entity Information	12 Months Ended
	Dec. 01, 2011
Risk/Return:
Document Type	Other
Document Period End Date	Jul. 31, 2011
Registrant Name	LEGG MASON PARTNERS INCOME TRUST
Central Index Key	0000764624
Amendment Flag	false
Document Creation Date	May 31, 2012
Document Effective Date	May 31, 2012
Prospectus Date	Dec. 01, 2011

XML

Label	Element	Value
Risk/Return:	rr_RiskReturnAbstract
Registrant Name	dei_EntityRegistrantName	LEGG MASON PARTNERS INCOME TRUST
Prospectus Date	rr_ProspectusDate	Dec. 01, 2011
Document Creation Date	dei_DocumentCreationDate	May 31, 2012