The 0% Capital Gains Bracket in 2026: How Much You Can Sell Tax-Free

There is a federal tax rate of exactly zero on long-term capital gains, and it is not a loophole. It is printed in the tax code, adjusted for inflation every year, and used far less often than it should be.

In 2026, the 0% rate applies to long-term capital gains as long as your taxable income stays under $49,450 if you file single, $98,900 if you file jointly, or $66,200 as head of household (IRS Rev. Proc. 2025-32). If your income lands in that range, you can sell appreciated stock, funds, or other assets you have held for more than a year and pay no federal income tax on the gain.

For people between jobs, in early retirement, or in the gap years between retiring and claiming Social Security, this bracket is one of the most useful planning tools that exists. Here is how it works, how much you can actually realize, and where people get burned.

The 2026 thresholds

The 0% rate is set by taxable income — everything on your return after deductions, including the gains themselves:

Above those first thresholds, gains are taxed at 15%; above the second set, 20%. High earners also owe the 3.8% net investment income tax once modified adjusted gross income passes $200,000 (single) or $250,000 (joint) — those thresholds are written into the statute and have never been indexed for inflation.

Gains stack on top of your other income

The most misunderstood part of this bracket is the stacking rule. Long-term gains sit on top of your ordinary income, not beside it.

Say you are a couple with $60,000 of ordinary income in 2026 — some part-time work, some interest, a pension. After the $32,200 standard deduction, your taxable ordinary income is $27,800. The 0% capital gains bracket runs to $98,900 of taxable income, so the room left for tax-free gains is $98,900 minus $27,800: $71,100. Realize $71,100 of long-term gains and the federal tax on them is zero. Realize $81,100 and the last $10,000 — the part that pokes above the line — is taxed at 15%. Only the overage loses the 0% rate, not the whole gain.

This is why the bracket rewards people with modest ordinary income and large taxable brokerage accounts. Every dollar of wages, IRA withdrawals, or Roth conversions eats a dollar of 0% room. The years when your ordinary income is low — after the paychecks stop, before required minimum distributions begin — are exactly the years this bracket is widest.

The real ceiling is higher than the bracket

The thresholds above are taxable income, which means your deductions raise the amount you can actually realize.

Take a retired couple, both 65 or older, whose only income in 2026 is long-term capital gains. Start with the 0% bracket: $98,900. Add the standard deduction: $32,200. Add the senior deduction created by the 2025 tax law — up to $6,000 per person for those 65 and up, available through 2028, on top of the standard deduction. That is $12,000 more.

Total: this couple could realize $143,100 of long-term capital gains in 2026 and owe $0 of federal income tax on it. (Their income of $143,100 stays under the $150,000 threshold where the senior deduction starts to phase out, so the full amount holds.)

A single filer under 65 with no other income gets $49,450 plus the $16,100 standard deduction: $65,550 of gains, federal tax of zero. A couple under 65: $131,100.

Tax-gain harvesting: sell the winner, buy it back

Here is the move this bracket makes possible. If you hold a fund that has doubled and you have 0% room this year, you can sell it, realize the gain tax-free, and — if you still like the investment — buy it back immediately.

There is no waiting period. The wash-sale rule, which forces you to wait 30 days when harvesting losses, applies only to losses. Nothing stops you from repurchasing the identical shares the same afternoon.

What you gain is a higher cost basis. The gain you realized at 0% is gone from the ledger forever; when you eventually sell for good, only the growth from the new, higher basis is taxable. Do this for a few low-income years in a row and you can quietly launder six figures of embedded gains out of your portfolio at a lifetime rate of zero — legally, on a form the IRS printed for you.

Five ways this goes wrong

State taxes don't care about the 0% bracket. Most states tax capital gains as ordinary income, with no special 0% band. A harvest that is free federally can still cost 5–10% in state tax, depending on where you live. A handful of states have no income tax at all, which changes the math entirely.

The gain still counts as income everywhere else. If you are under 65 and buying health insurance on an ACA exchange, harvested gains raise the MAGI that sets your premium subsidy. A "tax-free" gain can claw back thousands of dollars of subsidy — an effective tax rate well above zero. If you are 63 or older, this year's income sets your Medicare IRMAA surcharge two years from now.

Ordinary income moves eat the same room. A Roth conversion and a gain harvest compete for the same bracket space. In most low-income years you can do one well, not both. Converting fills the 0% band from the bottom; it can push gains you already realized from 0% into 15%.

Mutual fund distributions arrive uninvited. A December capital gains distribution from a fund you didn't sell still lands in the stack. Leave margin for it, or check your funds' distribution estimates before harvesting in Q4.

The holding period is a cliff. Only long-term gains — assets held more than one year — qualify. Sell at 364 days and the whole gain is ordinary income.

Doing the math before December

The 0% bracket is a use-it-or-lose-it allowance that resets every January. Using it well means knowing, before year-end, what your taxable income will be — wages, interest, dividends, fund distributions, the deductions you'll actually claim — and how much room is left. Most people find out in April, four months too late.

This is a case where software earns its keep. Tally models federal tax plus all 50 states, and its what-if scenarios let you test a harvest before you make it — how much room you have this year, what it does to your ACA subsidy or future IRMAA, and whether the 0% room is better spent on a Roth conversion instead, all against your real account balances rather than a guess.

However you run the numbers, run them while the year is still open. A bracket with a 0% rate on it is a strange thing to waste.

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