A capital gains distribution is a payment a mutual fund or ETF makes to its shareholders out of the net gains it realized by selling securities for more than it paid. Each shareholder on the record date receives the same amount per share, whether they bought ten years ago or last week, and the fund's net asset value drops by the payout. In a taxable account you owe tax on it for the year it is paid, even if it is reinvested. Capital gains tax on stocks covers the rates, and the stocks hub gathers the related guides.
Why do mutual funds distribute capital gains?
US tax law spares a fund from corporate income tax only on what it pays out, and the gains come from selling holdings at a profit.
A fund keeps its status as a regulated investment company, which lets it deduct what it distributes, only if it pays out at least 90% of its investment company taxable income under section 852(a); that income includes net short-term gains. It may keep net long-term gains, but they are then taxed at the 21% corporate rate set in section 11(b). Section 4982 adds a 4% excise tax unless the fund distributes at least 98% of its ordinary income for the calendar year and 98.2% of its capital gain net income for the 12 months ending October 31. That October cut-off is why funds can total their gains in the autumn and pay them out in December.
The gains come from two kinds of selling:
- Turnover. Managers sell holdings to reshape the portfolio, and index funds sell when their index drops a company. A US prospectus states the past year's portfolio turnover rate as a percentage of the portfolio's average value, and a higher rate can mean more realized gains.
- Redemptions. Mutual funds typically pay departing shareholders in cash, so heavy withdrawals can force sales of appreciated holdings, and the shareholders who stay receive the gains.
Realized losses offset realized gains first, so only the net amount is paid out.
When are capital gains distributions paid, and which dates matter?
The record date decides who is paid, the ex-dividend date is when the price drops by the payout, and the payable date is when the money arrives.
Vanguard Balanced Index Fund Admiral Shares (VBIAX) shows the pattern. For its December 2025 payout the record date was December 22, the ex-dividend and reinvestment date December 23 and the payable date December 24, and reinvested distributions bought new shares at $52.11. Publication 550 defines the ex-dividend date as the first day after a dividend is declared on which a buyer is not entitled to it. On exchange-traded shares the record and ex-dates can fall on the same day: IVV's September 2026 dividend had both on September 15.
A distribution declared in October, November or December, payable to holders of record on a date in that month, is treated under section 852(b)(7) as received on December 31 if the fund pays it during January. A check that arrives in January can therefore belong on the previous year's return. SEC-regulated funds must explain their distribution policy in the prospectus, and many fund websites post distribution schedules.
How is a capital gains distribution taxed in a taxable account?
Long-term distributions are taxed at long-term capital gains rates however long you have owned the fund, and short-term ones at ordinary income rates, even if you reinvest them.
| What the fund paid out | Where it appears | Federal tax treatment |
|---|---|---|
| Net long-term capital gains | Form 1099-DIV, box 2a | Long-term capital gains rates, whatever your holding period |
| Net short-term capital gains | Box 1a, with ordinary dividends | Ordinary income rates |
| Long-term gains the fund kept and paid tax on | Form 2439 | Long-term gain for you, with a credit for the fund's tax |
| Dividends and interest the fund earned | Box 1a, with the qualified part in box 1b | Ordinary rates, or long-term rates for qualified dividends |
| Return of capital | Box 3 | Not taxed when paid, but it lowers your basis |
For 2026 the long-term rates are 0% up to $49,450 of taxable income (single) or $98,900 (married filing jointly); 15% above that; 20% above $545,500 (single) or $613,700 (joint), and the net investment income tax, 3.8% on the smaller of net investment income and the amount by which modified AGI exceeds $200,000 (single) or $250,000 (married filing jointly), can apply on top. Reinvesting does not change the tax, but under Publication 550 the reinvested amount becomes the cost basis of the new shares, so it is not taxed again when you sell. Capital gain distributions go on line 7a of Form 1040 or line 13 of Schedule D, depending on the rest of your return.
Worked example: Vanguard Balanced Index's December 2025 payout on 1,000 shares
Suppose you held 1,000 VBIAX shares in a taxable account on the December 22, 2025 record date, and your long-term gains are taxed at 15% and your ordinary income at 22%.
- Long-term gain: 1,000 × $1.23884 = $1,238.84, reported in box 2a; tax at 15%: $185.83
- Short-term gain: 1,000 × $0.11072 = $110.72, included in box 1a; tax at 22%: $24.36
- Federal tax on the two gains: $210.19, owed for 2025 whether you took cash or reinvested
- The fund also paid $278.00 of income dividends, taxed separately. Reinvesting all $1,627.56 at $52.11 bought about 31.233 shares, with a basis of $1,627.56
- Had you held the 1,000 shares for six months or less and sold them at a $2,000 loss, section 852(b)(4) would make $1,238.84 of that loss long-term, matching the long-term distribution, and only $761.16 short-term
Why do ETFs rarely distribute capital gains?
Most ETF selling happens between investors on an exchange, and when shares are redeemed the fund usually hands over securities, which triggers no taxable gain.
An investor leaving a mutual fund is paid by the fund; one leaving an ETF normally sells shares to another investor, and the fund deals only with authorized participants, who typically redeem in kind. Section 852(b)(6) means the fund recognizes no gain on securities handed over that way, and it can pick its lowest-cost lots; ETF creation and redemption walks through the mechanism. The SEC's ETF bulletin puts the upshot plainly: ETF shareholders may pay less in taxes on a similar investment.
IVV shows the result. None of its ten quarterly distributions from June 2024 to September 2026 contained short- or long-term capital gains; each was entirely income. VBIAX, an index mutual fund, paid gains of $1.35 a share in December 2025, about 2.6% of the $52.11 price at which they were reinvested.
ETFs are not immune. Funds that redeem in cash, as some bond ETFs do, or that must sell holdings their index drops when no redemptions are available to absorb them, can still realize gains, so check the capital gains columns in an ETF's distribution history before buying late in the year. ETFs vs mutual funds vs index funds compares the two wrappers more broadly, and the compound interest calculator shows what money paid in tax each year would have grown to.
How is a fund's distribution different from your own capital gain?
A distribution passes on gains the fund realized, on its schedule; your own capital gain comes from selling your fund shares, on yours.
| Capital gains distribution | Your gain when you sell shares | Unrealized gain | |
|---|---|---|---|
| What triggers it | The fund selling holdings at a profit | You selling or redeeming fund shares | Nothing yet: the NAV has risen above your cost |
| Holding period that sets the rate | The fund's, on the securities it sold | Yours, on the fund shares | Not taxed |
| Tax form | Form 1099-DIV, or Form 2439 for retained gains | Form 1099-B | None |
| Effect on your basis | None if taken in cash; reinvested shares get their own basis | Basis is subtracted from the proceeds | None |
| Who controls the timing | The fund | You | You, by choosing when to sell |
The realized vs unrealized gains entry covers the last two columns. Fund distributions join your long-term gains when you net gains and losses for the year, so losses you realize elsewhere can offset them; tax-loss harvesting explains how.
What mistakes do people make with capital gains distributions?
The most expensive is buying a fund in a taxable account just before its record date, which hands you a tax bill on gains you never shared in.
- Buying just before the record date. Part of what you paid comes straight back as a taxable payout, and your shares are worth that much less. Check the fund's distribution schedule in November and December, and if a large payout is due, buy after the ex-dividend date or hold the fund in a tax-advantaged account.
- Selling to dodge a distribution without checking your own gain. Selling before the record date avoids the payout but realizes your own gain or loss, and if your shares have risen by more than the distribution, the sale can cost more tax than it saves.
- Leaving reinvested amounts out of your basis. Each reinvestment buys new shares with their own basis, and forgetting them means paying tax on the same money twice at sale. Check that your broker's records include every reinvestment.
- Triggering a wash sale through automatic reinvestment. Wash-sale rules look for purchases 30 days before or after the sale (a 61-day window), and a reinvested distribution counts, so selling shares of the same fund at a loss near a reinvestment can disallow part of the loss.
- Assuming index funds never pay gains. Index mutual funds still sell to meet redemptions and to follow index changes, which is how VBIAX came to distribute $1.35 a share.