SUMMARY PROSPECTUS	Calvert Income Funds	Calvert Investments
January 31, 2010		A UNIFI Company

CALVERT GOVERNMENT FUND
Class (Ticker):	A (CGVAX)	C (CGVCX)

Before you invest, you may want to review the Fund's Prospectus, which contains more information about the Fund and its risks. The Fund's Prospectus and Statement of Additional Information (the "SAI"), both dated January 31, 2010, are incorporated by reference into this Summary Prospectus. You can find the Fund's Prospectus, the SAI, and other information about the Fund online at www.calvert.com/prospectus. You can also get this information at no cost by calling 1-800-368-2745 or by sending an e-mail request to Prospectusrequest@calvert.com, or by asking a financial professional who offers shares of the Fund.

INVESTMENT OBJECTIVE

The Fund seeks to maximize income, to the extent consistent with preservation of capital, primarily through investment in debt securities issued or guaranteed by the U.S. government, its agencies or instrumentalities.

FEES AND EXPENSES OF THE FUND

This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund. You may qualify for sales charge discounts if you and your family invest, or agree to invest in the future, at least $50,000 in Calvert non-money market mutual funds. More information about these and other discounts is available from your financial professional and under "Choosing a Share Class" on page 47 and "Reduced Sales Charges" on page 51 of the Fund's Prospectus, and under "Method of Distribution" on page 37 of the Fund's SAI.

Shareholder Fees (fees paid directly from your investment)
	Class A		Class C
Maximum front-end sales charge (load) on purchases (as a % of offering price)	3.75%		None
Maximum deferred sales charge (load) (as a % of amount purchased or redeemed, whichever is lower) 1	None		1.00%
Redemption fee (as a % of amount redeemed or exchanged within 30 days of purchase)	2.00%		2.00%
Annual Fund Operating Expenses (expenses that you pay each year as a % of the value of your investment)
		Class A	Class C
Management fees		0.55%	0.55%
Distribution and service (12b-1) fees		0.25%	1.00%
Other expenses		4.87%	39.86%
Total annual fund operating expenses		5.67%	41.41%
Less fee waiver and/or expense reimbursement 2		(4.63%)	(39.37%)
Net expenses		1.04%	2.04%

1 The contingent deferred sales charge reduces over time.

2 Calvert has agreed to contractually limit direct net annual fund operating expenses for Class A and Class C through January 31, 2011. Direct net operating expenses will not exceed 1.04% for Class A and 2.04% for Class C. Calvert has also agreed to contractually limit direct net operating expenses for Class C to 5.00% through January 31, 2020. Only the Board of Trustees of the Fund may terminate the Fund's expense cap before the contractual period expires.

Example

This example is intended to help you compare the cost of investing in the Fund with the cost of investing in other mutual funds. The example assumes that:

• you invest $10,000 in the Fund for the time periods indicated and then either sell or hold your shares at the end of those periods;
• your investment has a 5% return each year;
• the Fund's operating expenses remain the same; and
• any Calvert expense limitation is in effect for year one.

Although your actual costs may be higher or lower, under these assumptions your costs would be:

Number of Years Investment is Held	Class A		Class C
			Sold	Held
1		$477	$307	$207
3		$1,604	$1,237	$1,237
5		$2,716	$2,266	$2,266
10		$5,432	$4,840	$4,840

Portfolio Turnover

The Fund pays transaction costs, such as commissions, when it buys and sells securities ("turns over" its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when Fund shares are held in a taxable account. These costs, which are not reflected in annual fund operating expenses or in the "Example", affect the Fund's performance. During the most recent fiscal year, the Fund's portfolio turnover rate was 428% of its portfolio's average value.

INVESTMENTS, RISKS AND PERFORMANCE

Principal Investment Strategies

Under normal circumstances, the Fund will invest at least 80% of its net assets (including borrowings for investment purposes) in debt securities issued or guaranteed by the U.S. government, its agencies or instrumentalities ("U.S. government Securities"), futures contracts related to U.S. government Securities and repurchase agreements collateralized by U.S. government Securities. The Fund will provide shareholders with at least 60 days' notice before changing this 80% policy.

The Fund uses an active strategy, seeking relative value to earn incremental income. The investment advisor allocates the Fund's assets among different market sectors (e.g., U.S. Treasury or U.S. government agency) and different maturities based on its view of the relative value of each sector or maturity. There is no limit on the Fund's average maturity.

The Fund may invest in securities that represent interests in pools of mortgage loans or other assets assembled for sale to investors by various U.S. governmental agencies, government-related organizations and private issuers. These investments may include derivative securities such as collateralized mortgage obligations ("CMOs") and ABS.

The Fund is non-diversified.

The Fund may also use a hedging technique that includes the purchase and sale of U.S. Treasury securities and related futures contracts for the purpose of managing the duration of the Fund.

Principal Risks

You could lose money on your investment in the Fund, or the Fund could underperform, because of the risks described below. An investment in the Fund is not a bank deposit and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.

Non-Diversification Risk. Compared to other funds, the Fund may invest more of its assets in a smaller number of companies than a diversified fund. Gains or losses on a single bond may have greater impact on the Fund.

Bond Market Risk. The market prices of bonds held by the Fund may fall.

Credit Risk. The credit quality of fixed-income securities may deteriorate, which could lead to default or bankruptcy of the issuer where the issuer becomes unable to pay its obligations when due.

Mortgage-Backed Security Risk. Debt and mortgage-backed securities issued by government-sponsored enterprises ("GSEs") such as FNMA and FHLMC are neither insured nor guaranteed by the U.S. Treasury and are not backed by the full faith and credit of the U.S. government. Such securities are only supported by the credit of the GSE. The U.S. government recently provided financial support to FNMA and FHLMC, but there can be no assurance that it will support these or other GSEs in the future. Mortgage-backed securities also involve prepayment risk and extension risk.

Management Risk. The individual bonds in the Fund may not perform as well as expected, due to credit, political or other risks and/or the Fund's portfolio management practices may not work to achieve their desired result.

Interest Rate Risk. A change in interest rates may adversely affect the value of fixed-income securities. When interest rates rise, the value of fixed-income securities will generally fall.

Unrated Security Risk.  Unrated securities may be less liquid than rated securities determined to be of comparable quality.  When the Fund purchases unrated securities, it will depend on the Advisor's analysis of credit risk without the assessment of an NRSRO.

Collateralized Mortgage Obligation ("CMO") Risk. There are risks associated with CMOs that relate to the risks of the underlying mortgage pass-through securities (i.e., an increase or decrease in prepayment rates, resulting from a decrease or increase in mortgage interest rates, will affect the yield, average life, and price of CMOs).

Repurchase Agreement Risk. A repurchase agreement exposes the Fund to the risk that the party that sells the security may default on its obligation to repurchase it. The Fund may lose money because it cannot sell the security at the agreed-upon time and price or the security loses value before it can be sold.

Active Trading Strategy Risk. The Fund employs an active style that seeks to position the Fund with securities that offer the greatest price appreciation while minimizing risk. This style can result in higher turnover (exceeding 100%), may translate to higher transaction costs and may increase your tax liability.

Futures Contracts Risk. The value of a futures contract tends to increase and decrease in tandem with the value of the underlying instrument. The price of futures can be highly volatile; using them could lower total return, and the potential loss from futures can exceed the Fund's initial investment in such contracts.

Performance

The following bar chart and table show the Fund's annual returns and its long-term performance, which give some indication of the risks of investing in the Fund. The bar chart shows how the performance of the Class A shares has varied from year to year. The table compares the Fund's performance over time with that of an index and an average.

The Fund's past performance (before and after taxes) does not necessarily indicate how the Fund will perform in the future. For updated performance information, visit www.calvert.com.

The return for each of the Fund's other Classes of shares will differ from the Class A returns shown in the bar chart, depending upon the expenses of that Class. The bar chart does not reflect any sales charge that you may be required to pay upon purchase or redemption of the Fund's shares. Any sales charge will reduce your return.

Year-by-Year Total Return (Class A at NAV) 

Best Quarter (of periods shown	Q3 '09	4.42%
Worst Quarter (of periods shown)	Q2 '09	-0.88%

The average total return table shows the Fund's returns with the maximum sales charge deducted, and no sales charge has been applied to the indices used for comparison in the table.

After-tax returns are calculated using the historical highest individual federal marginal income tax rates, and do not reflect the impact of state and local taxes. Actual after-tax returns depend on your tax situation and may differ from those shown. The after-tax returns shown are not relevant to you if you hold your Fund shares through a tax-deferred arrangement such as a 401(k) plan or individual retirement account. The return after taxes on distributions and sale of Fund shares may be higher than the return before taxes because the calculation assumes that shareholders receive a tax benefit for capital losses incurred on the sale of their shares. After-tax returns are shown only for Class A shares; after-tax returns for other Classes will vary.

Average Annual Total Returns (as of 12-31-09) (with maximum sales charge deducted)	1 year	Since Inception (12/31/08)
Class A:
Return before taxes	3.78%	3.78%
Return after taxes on distributions	2.68%	2.68%
Return after taxes on distributions and sale of Fund shares	2.55%	2.55%
Class C:	5.93%	5.93%
Barclays Capital U.S. Government Index	-2.20%	-2.20%
Lipper General U.S. Government Funds Avg.	1.25%	1.25%

(Index reflects no deduction for fees, expenses or taxes. Lipper Average reflects no deduction for taxes.)

PORTFOLIO MANAGEMENT

Investment Advisor. Calvert Asset Management Company, Inc.

Portfolio Manager Name	Title	Length of Time Managing Fund
Gregory Habeeb	Senior Vice President, Portfolio Manager	Since December 2008

BUYING AND SELLING SHARES

You can buy, sell (redeem) or exchange shares of the Fund either through a financial professional or directly from the Fund, on any day that the New York Stock Exchange is open. The share price is based on the Fund's net asset value determined after receipt of your request in good order.

Minimum to Open Fund Account	Minimum Additional Investments
$2,000	$250

The Fund may waive investment minimums and applicable service fees for certain investors.

Class A and C Shares. To buy shares, contact your financial professional or open an account by completing and signing an application (available at www.calvert.com or by calling 800-368-2748). Make your check payable to the Fund.

To Buy Shares
New Accounts (include application):	Calvert, P.O. Box 219544, Kansas City, MO 64121-9544
Subsequent Investments (include investment slip):	Calvert, P.O. Box 219739, Kansas City, MO 64121-9739
By Registered, Certified or Overnight Mail:	Calvert, c/o BFDS, 330 West 9th Street, Kansas City, MO 64105-1807
To Sell Shares
By Telephone	Call 800-368-2745
By Mail	Calvert, P.O. Box 219544, Kansas City, MO 64121-9544

TAX INFORMATION

Unless you are investing through a tax-deferred arrangement, such as a 401(k) plan or an individual retirement account, any dividends and distributions made by a Fund are taxable to you as ordinary income or capital gains and may also be subject to state and local taxes.

PAYMENTS TO BROKER/DEALERS AND OTHER FINANCIAL INTERMEDIARIES

If you purchase shares of a Fund through a broker/dealer or other financial intermediary (such as a bank), the Fund and its related companies may pay the intermediary for the sale of Fund shares and related services. These payments may create a conflict of interest by influencing the broker/dealer or other intermediary and your salesperson to recommend the Fund over another investment. Ask your salesperson or visit your financial intermediary's Web site for more information.

Investment Company Act file: No. 811-3416 The Calvert Fund