Dividends

4.1 Interest/Dividends/Other Types of Income: 1099-DIV Dividend Income

How do I report this 1099-DIV from my mutual fund?

Enter the ordinary dividends from Form 1099-DIV (PDF), box 1a, on line 9a of Form 1040 (PDF), U.S. Individual Income Tax Return. Enter any qualified dividends from Form 1099-DIV, box 1b, on line 9b of Form 1040. If you have an amount entered in other boxes of your 1099-DIV refer to Form 1040, Schedule D Instructions to see where to report them.

I received dividends from my credit union. How do I report this income?

Certain distributions commonly referred to as dividends are actually interest. They include "dividends" on deposits or share accounts in cooperative banks, credit unions, domestic savings and loan associations, and mutual savings banks.

10.3 Capital Gains, Losses/Sale of Home: Mutual Funds (Costs, Distributions, etc.)

I have both purchased and sold shares in a money-market mutual fund. The fund is managed so the share price is constant. All gain is reported as dividends. Do I have to report the sale of these shares?

Yes, you report the sale of your shares on Form 1040, Schedule D (PDF), Capital Gains and Losses. Generally, whenever you sell, exchange, or otherwise dispose of a capital asset, you report it on Schedule D.
If the share price were constant, you would have neither a gain nor a loss when you sell shares because you are selling the shares for the same price you purchased them.

If you actually owned shares that were later sold, the fund or the broker should have issued a Form 1099-B There is no requirement with that form that there be gain or loss on the sale, only a sale or exchange of an investment asset and sales proceeds.