For the 2026 tax year, the federal long-term capital gains tax exemption limit is $49,450 in taxable income for single filers and $98,900 for married couples filing jointly. Stay at or below those figures and every dollar of long-term gain sitting inside that window is taxed at 0%. Cross the line and the gain above it is taxed at 15%, then 20% at higher incomes, with an extra 3.8% surtax possible on top.1Internal Revenue Service. Rev. Proc. 2025-32
What Has to Be True for a Gain to Qualify
The 0% rate only applies to long-term gains. A gain is long-term when you have held the asset for more than one year. The holding period starts the day after you acquire the asset and runs through the day you sell.2Internal Revenue Service. Topic No. 409, Capital Gains and Losses Buy stock on March 1, 2025 and you must wait until at least March 2, 2026 to sell. Sell one day early and the whole gain is taxed as ordinary income, which can run as high as 37%.
Inherited assets are the exception. They are treated as long-term automatically, no matter how briefly the heir actually holds them.3Office of the Law Revision Counsel. 26 U.S. Code 1223 – Holding Period of Property
The 2026 0% Bracket Ceilings by Filing Status
These are the taxable-income ceilings the IRS published for 2026. Long-term gains that fall at or below your ceiling are taxed at 0%:1Internal Revenue Service. Rev. Proc. 2025-32
- Single filers: $49,450
- Married filing jointly: $98,900
- Head of household: $66,200
- Married filing separately: $49,450
These figures are adjusted for inflation, so the 2026 numbers are higher than earlier years. Working from last year’s threshold when timing a sale in the current year is a common way to miscalculate.
Why Taxable Income, Not Gross Income, Is the Number That Counts
The exemption is measured against taxable income, not gross income. You add up wages, interest, dividends, rental income, and capital gains, then subtract either the standard deduction or your itemized deductions. Whatever is left is the number that determines which bracket your gain lands in.
A married couple with $120,000 of gross income and a $32,200 standard deduction has $87,800 of taxable income, which keeps them under the $98,900 ceiling. Every dollar of long-term gain inside that window is taxed at 0%.
The order the tax code uses to stack income also matters. Ordinary income (wages, interest, distributions from retirement accounts) fills the lower brackets first. Long-term gains and qualified dividends sit on top. That is why two people with the same size gain can pay very different rates: someone with $90,000 in wages has already used up most of the 0% room before their gain enters the picture, while a retiree living on $20,000 in Social Security may have tens of thousands of dollars of 0% space still available.
What You Pay Above the Exemption Limit
Once taxable income climbs past the 0% ceiling, long-term gains are taxed at 15%. The 15% rate keeps going until income hits a second threshold, and then the rate jumps to 20%. For 2026:1Internal Revenue Service. Rev. Proc. 2025-32
- Single filers: 15% from $49,451 to $545,500; 20% above $545,500
- Married filing jointly: 15% from $98,901 to $613,700; 20% above $613,700
- Head of household: 15% from $66,201 to $579,600; 20% above $579,600
- Married filing separately: 15% from $49,451 to $306,850; 20% above $306,850
A single gain can straddle two brackets. Say you file single with $45,000 of ordinary taxable income and a $20,000 long-term gain. The first $4,450 of that gain fills up the remaining 0% room (getting you to $49,450). The other $15,550 is taxed at 15%.
The 3.8% Net Investment Income Tax
Higher earners owe an extra 3.8% surtax on top of the capital gains rate. It applies when modified adjusted gross income exceeds fixed statutory thresholds that are not adjusted for inflation:4Office of the Law Revision Counsel. 26 U.S. Code 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 whichever is smaller: your net investment income, or the amount your MAGI exceeds the threshold. A single filer earning $220,000 with $50,000 in investment income owes the surtax on $20,000. A married couple in the 20% bracket who also owes NIIT pays an effective 23.8% on their long-term gains.
Two Situations the Standard Exemption Does Not Cover
Two categories break out of the 0/15/20 structure and are worth knowing so you don’t apply the wrong rule.
Collectibles (art, coins, antiques, precious metals) top out at a 28% maximum rate rather than 20%.5Office of the Law Revision Counsel. 26 U.S. Code 1 – Tax Imposed Low-income sellers still pay the lower 0% or 15% rate that would otherwise apply, but at higher incomes collectibles are always taxed more heavily than stocks or real estate.
Your primary home uses a completely separate exemption. When you sell a home you have owned and used as your principal residence for at least two of the last five years, you can exclude up to $250,000 of gain from income, or $500,000 if you file jointly.6Internal Revenue Service. Topic No. 701, Sale of Your Home The two years of use do not have to be consecutive, and you cannot have claimed the exclusion on another home sale in the prior two years.7Office of the Law Revision Counsel. 26 U.S.C. 121 – Exclusion of Gain From Sale of Principal Residence Excluded gain never counts toward the taxable-income thresholds above.
Using Losses to Stay Under the Limit
Capital losses reduce the gain that ever reaches the bracket calculation. Sell one stock at a $30,000 gain and another at a $12,000 loss in the same year and you are taxed on a net $18,000. Short-term losses hit short-term gains first, long-term losses hit long-term gains first, and any excess crosses over.
If losses exceed gains for the year, you can deduct up to $3,000 of the leftover against ordinary income like wages, or $1,500 if married filing separately.8Office of the Law Revision Counsel. 26 U.S.C. 1211 – Limitation on Capital Losses Anything beyond that carries forward indefinitely, in $3,000 annual chunks (plus any future gains it can offset), until it is used up.2Internal Revenue Service. Topic No. 409, Capital Gains and Losses A large loss in one year can shelter gains for several years afterward, which is why some investors deliberately realize losses before year-end.
What Could Change the 2026 Math
Two things sit outside the bracket table but can move you across a threshold.
The first is the standard deduction. Several provisions of the Tax Cuts and Jobs Act are scheduled to expire after December 31, 2025, including the nearly doubled standard deduction.9Library of Congress. Expiring Provisions in the Tax Cuts and Jobs Act (TCJA, P.L. 115-97) Under current law, the 2026 standard deduction reverts to lower pre-TCJA amounts adjusted for inflation. Congress may extend or modify these rules, but if the deduction drops, taxable income rises, and gains that would have sat in the 0% bracket can be pushed into the 15% bracket. Confirm the standard deduction that actually applies in your filing year before timing a sale to the 0% threshold.
The second is state tax. Most states tax capital gains as ordinary income, with rates from 0% in states without an income tax to over 13% in the highest-tax states. The federal exemption does nothing about that layer.