Publication 17
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Capital gain distributions (also called capital gain dividends) are paid to you
or credited to your account by mutual funds (or other regulated investment
companies) and real estate investment trusts (REITs). They will be shown in box
2a of the Form 1099-DIV you receive from the mutual fund or REIT.
Report capital gain distributions as long-term capital gains
regardless of how long you owned your shares in the mutual fund or REIT.
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Some mutual funds and REITs keep their long-term capital gains and pay tax on
them. You must treat your share of these gains as distributions, even though you
did not actually receive them. However, they are not included on Form 1099-DIV.
Instead, they are reported to you in box 1a of Form 2439, Notice to Shareholder
of Undistributed Long-Term Capital Gains.
Report undistributed capital gains (box 1a of Form 2439) as long-term
capital gains on Schedule D (Form 1040), column (f), line 11.
The tax paid on these gains by the mutual fund or REIT is shown
in box 2 of Form 2439. You take credit for this tax by including it on Form
1040, line 71, and checking box a on that line. Attach Copy B of Form 2439 to
your return, and keep Copy C for your records.
taxmap/pub17/p17-037.htm#en_us_publink1000171604Increase your basis in your mutual fund, or your interest in
a REIT, by the difference between the gain you report and the credit you claim
for the tax paid.
taxmap/pub17/p17-037.htm#en_us_publink1000171605For more information on the treatment of distributions from mutual
funds, see Publication 550.