For the 2026 tax year, a single filer can earn up to $49,450 in taxable income and pay zero federal tax on long-term capital gains; married couples filing jointly get the same 0% rate up to $98,900. That’s the direct answer to how much capital gains is tax free at the federal level, but it’s not the only path to a zero tax bill. Home sellers can exclude up to $250,000 (or $500,000 for couples) of profit on a primary residence, heirs receive a stepped-up basis that erases a lifetime of appreciation, and capital losses can wipe out gains dollar for dollar.
The 0% Long-Term Capital Gains Bracket
Long-term capital gains, meaning profits on assets held longer than one year, are taxed at 0%, 15%, or 20% rather than at ordinary income rates. Which rate you pay depends on your total taxable income and your filing status.
For 2026, the 0% rate applies at these taxable income levels:1Internal Revenue Service. Rev. Proc. 2025-32
- Single filers: up to $49,450
- Married filing jointly: up to $98,900
- Head of household: up to $66,200
- Married filing separately: up to $49,450
The 15% rate then runs up to $545,500 for single filers and $613,700 for joint filers. Anything above those levels is taxed at 20%.1Internal Revenue Service. Rev. Proc. 2025-32
These are taxable income figures, not gross income. Taxable income is what’s left after you subtract the standard deduction or your itemized deductions. A single filer with $65,000 in wages who takes the standard deduction can easily land inside the 0% bracket, making their long-term gains that year fully tax-free at the federal level.
Your Gains Count Toward the Threshold
This is where people miscalculate. Your capital gains are part of your taxable income, so they count against the same threshold they’re trying to fit under. If you have $30,000 in wages and sell stock for a $25,000 long-term gain, your taxable income before deductions is $55,000, not $30,000.
The gains that fit below the threshold get the 0% rate. Anything that pushes your income over the line spills into the 15% bracket. So a filer sitting well below $49,450 in ordinary income can still owe tax on part of a big gain if the gain itself is large enough to breach the bracket.
Short-Term Gains Don’t Qualify
Gains on assets held one year or less get no preferential rate at all. They’re taxed as ordinary income, at rates that can reach 37%. The one-year holding period is the gate: cross it, and the 0% bracket becomes available; miss it, and every dollar of profit is taxed at your regular rate.
The 3.8% Surtax on Higher Incomes
Even gains that would otherwise fall in the 0% or 15% bracket can pick up an additional 3.8% Net Investment Income Tax if your income crosses these thresholds:2Office of the Law Revision Counsel. 26 USC 1411 – Imposition of Tax
- Single or head of household: $200,000
- Married filing jointly: $250,000
- Married filing separately: $125,000
The 3.8% applies to the lesser of your net investment income or the amount your modified adjusted gross income exceeds the threshold. These numbers haven’t been indexed for inflation since the tax started in 2013, so more households cross them each year. If a joint-filing couple has $280,000 in modified AGI and $60,000 of that is capital gains, they owe the 3.8% on $30,000, the amount over $250,000.
Home Sale Exclusion: Up to $500,000 Tax-Free
For most people, the biggest tax-free capital gain of their lives comes from selling a home. Federal law lets you exclude up to $250,000 of profit if you file as single, or $500,000 if you file jointly.3Office of the Law Revision Counsel. 26 US Code 121 – Exclusion of Gain From Sale of Principal Residence There’s no age requirement, and you don’t have to buy another home with the proceeds.
You have to pass two tests, both measured against the five years before the sale:
- Ownership test: you owned the home for at least two of those five years.
- Use test: you lived in it as your main home for at least two of those five years.
The 24 months don’t have to be consecutive. A married couple claiming the full $500,000 needs both spouses to meet the use test, though only one has to meet the ownership test.
Partial Exclusion When You Sell Early
If a job move, a health issue, or another qualifying event forces a sale before the two-year mark, you can claim a prorated share of the exclusion. Qualifying events include a new workplace at least 50 miles farther from the home than the old one, a doctor-recommended move, divorce, job loss, and natural disasters.4Internal Revenue Service. Publication 523 – Selling Your Home
You calculate the partial exclusion by dividing the months you actually lived in the home by 24, then multiplying by $250,000 (or $500,000 for a joint filer). Eighteen months of use before a qualifying job relocation yields 18/24 × $250,000, or $187,500 of tax-free gain.
Inherited Assets Get a Stepped-Up Basis
When you inherit property, its tax basis resets to the fair market value on the date the previous owner died.5Office of the Law Revision Counsel. 26 US Code 1014 – Basis of Property Acquired From a Decedent Every dollar of appreciation that built up during the decedent’s lifetime effectively vanishes for capital gains purposes. If your parent bought stock decades ago for $10,000 and it was worth $500,000 on the day they died, your basis becomes $500,000. Sell it the next day at that price and you owe nothing.
The step-up applies to stocks, real estate, and most other capital assets. Any capital gains tax you eventually owe is based only on appreciation after the date of death.
Gifts Are Treated Differently
Assets you receive as a lifetime gift do not get a step-up. You inherit the donor’s original cost basis, sometimes called carryover basis.6Office of the Law Revision Counsel. 26 USC 1015 – Basis of Property Acquired by Gifts and Transfers in Trust If your parent gives you the same stock while they’re alive, you take over the $10,000 basis. Sell for $500,000 and you owe capital gains tax on the full $490,000 of appreciation.
Families sometimes gift appreciated assets thinking they’re minimizing tax, when waiting for the transfer to happen at death would have produced a far better result. On highly appreciated property, timing alone can be the difference between a zero tax bill and a six-figure one.
Other Ways to Reach Zero Capital Gains Tax
Offsetting Gains With Losses
Capital losses reduce capital gains dollar for dollar, with no cap. A $20,000 gain paired with a $15,000 loss leaves only $5,000 of taxable gain. If your losses exceed your gains for the year, you can deduct up to $3,000 of the excess against ordinary income ($1,500 if married filing separately), and any remaining loss carries forward indefinitely to future years.7Internal Revenue Service. Topic No. 409 – Capital Gains and Losses
The wash sale rule limits one popular version of this. If you sell a security at a loss and buy the same or a substantially identical one within 30 days before or after the sale, the IRS disallows the loss for the current year.8Office of the Law Revision Counsel. 26 USC 1091 – Loss From Wash Sales of Stock or Securities The disallowed amount gets added to the basis of the replacement shares, so it isn’t permanently gone, but it can’t offset gains this year.
Qualified Small Business Stock
Investors who buy stock directly from a qualifying small C corporation and hold it long enough can exclude 100% of the gain, up to a cap of the greater of $10 million per issuer or 10 times the adjusted basis in the stock sold (with a $15 million cap for shares acquired after the statutory applicable date).9Office of the Law Revision Counsel. 26 USC 1202 – Partial Exclusion for Gain From Certain Small Business Stock The company must have had gross assets under $75 million when the stock was issued, and the shares must be acquired at original issuance (not on the secondary market). The holding period is more than five years for older shares and at least three years for shares acquired after the applicable date.
Like-Kind Exchanges of Real Property
If you sell investment or business real estate and roll the proceeds into another qualifying property within strict deadlines, you can defer the entire gain through a Section 1031 exchange.10Office of the Law Revision Counsel. 26 USC 1031 – Exchange of Real Property Held for Productive Use or Investment This defers the tax rather than erasing it, but investors who chain exchanges over a lifetime and then leave the property to heirs can effectively eliminate the deferred gain through the step-up in basis at death. Personal residences don’t qualify.
Assets That Don’t Get the 0/15/20 Rates
Two categories of long-term gains face higher maximum rates no matter what bracket your income sits in:
- Collectibles (art, coins, antiques, precious metals, stamps, and similar items) are taxed at a maximum long-term rate of 28%.7Internal Revenue Service. Topic No. 409 – Capital Gains and Losses
- Unrecaptured depreciation on real property you previously depreciated (like a rental building) is taxed at a maximum of 25% on the portion of the gain attributable to those depreciation deductions.11Office of the Law Revision Counsel. 26 USC 1 – Tax Imposed
These are maximums. If your ordinary income rate is lower, you pay the lower rate. But someone assuming the 0% bracket covers a coin collection or a long-held rental property will be surprised at filing time.
You Still Have to Report Tax-Free Gains
A gain that qualifies for the 0% bracket or an exclusion still needs to appear on your federal return. Capital asset sales are reported on Form 8949 and Schedule D.12Internal Revenue Service. Instructions for Form 8949 If you received a Form 1099-B or 1099-S, the IRS already has a record of the transaction. Leaving it off your return, even when no tax is due, can trigger a notice.
Underreporting capital gains carries an accuracy-related penalty of 20% of the underpaid tax, plus interest.13Internal Revenue Service. Accuracy-Related Penalty For the home sale exclusion, you don’t need to report the sale if the entire gain is excluded and you never received a 1099-S. If a 1099-S was issued, you have to report the sale and claim the exclusion on your return. That last detail is one of the most common ways an otherwise tax-free sale ends up generating an IRS letter.