1099-DIV box guide
1099-DIV Box 3: Nondividend distributions
Track return-of-capital distributions against investment basis before reporting gain.
Return destination
Where the amount goes
Investment basis records; Form 8949 and Schedule D if distribution exceeds basis
1099-DIV
Return to the complete form guide and reconciliation worksheet.
Checks before filing
- Update basis even when no current tax is due.
- Do not report the amount automatically as an ordinary dividend.
- Identify any portion received after basis reached zero.
How Box 3 works
Box 3 reports a nondividend distribution "if determinable" — language from the instructions that reflects the fact that a payer doesn't always know at year-end whether a distribution exceeded its earnings and profits. Unlike Box 1a or Box 2a, a nondividend distribution isn't taxed as income when you receive it; instead it's treated as a return of your investment and reduces your basis in the stock.
Because it works against basis rather than current income, Box 3 amounts need to be tracked in your own investment records, not just reported once and forgotten — the reduced basis carries forward and affects the gain or loss calculated whenever you eventually sell those shares. Corporations distributing nondividend amounts to their own shareholders separately use Form 5452 to report the distribution to the IRS, which is a payer-side filing rather than something the recipient submits.
The edge case that actually triggers a current-year tax consequence is when a nondividend distribution exceeds your remaining basis in the stock. Once basis reaches zero, any further nondividend distribution in that box is treated as a capital gain in the year received rather than a basis reduction, generally reported on Form 8949 and Schedule D. Because determining "if determinable" is left to the payer, some distributions that are economically nondividend in nature may still show up in Box 1a if the payer wasn't able to make the determination in time.
Worked example
A taxpayer's basis in a stock is $200. The company pays a $150 nondividend distribution reported in Box 3, which is not taxed currently but reduces the taxpayer's basis to $50. The following year the company pays another $150 nondividend distribution; the first $50 reduces basis to zero, and the remaining $100 is reported as a capital gain because there's no basis left to absorb it.
Related 1099-DIV boxes
Box 1a: Total ordinary dividends
Report total ordinary dividends without adding qualified dividends from Box 1b twice.
Box 1b: Qualified dividends
Identify the part of ordinary dividends potentially eligible for qualified-dividend tax rates.
Box 2a: Total capital gain distributions
Carry long-term capital gain distributions to Schedule D or direct reporting when permitted.
Boxes 2b-2f: Special capital gain categories
Separate section 1250, section 1202, collectibles, and section 897 gain categories.
Frequently asked questions
What does Box 3 mean on 1099-DIV?
Box 3 generally reports a nondividend distribution that reduces basis first. Once basis reaches zero, an additional distribution can produce a reportable capital gain.
Is a nondividend distribution in Box 3 taxable income right away?
Generally no. It's treated as a return of capital that reduces your basis in the stock rather than as current taxable income, unless the distribution exceeds your remaining basis.
What happens once my basis reaches zero and I get another nondividend distribution?
Any nondividend distribution received after basis reaches zero is treated as a capital gain in the year it's received, typically reported on Form 8949 and Schedule D rather than as a basis adjustment.
Why does my 1099-DIV say Box 3 is blank when I know the company paid distributions?
The instructions only require the payer to report a nondividend distribution "if determinable." If the payer couldn't establish at year-end that the distribution exceeded earnings and profits, the amount may instead be reported in Box 1a as an ordinary dividend.