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capitalgaintaxcalc.com

Tax guide

US capital gains tax rates for 2026

Updated 2026-08-18 · Educational only — not tax advice

Tax year 2026 uses inflation-adjusted federal brackets from IRS Revenue Procedure 2025-32. Long-term capital gains still use the familiar 0%, 15%, and 20% structure, but the income thresholds that separate those rates moved up from 2025.

For single filers, the 0% long-term bracket generally runs through $49,450 of taxable income and the 15% bracket through $545,500, with 20% above that. Married filing jointly thresholds are roughly double the single amounts. Short-term gains continue to use ordinary income rates, which also received inflation adjustments.

What did not change

The 3.8% Net Investment Income Tax still uses MAGI thresholds of $200,000 (single and head of household), $250,000 (married filing jointly), and $125,000 (married filing separately). Those NIIT thresholds are not indexed the same way as the LTCG brackets.

Collectibles can still face a 28% long-term federal ceiling, and unrecaptured Section 1250 gain on real estate can still be taxed at up to 25%. Use the calculator with tax year 2026 selected to stack federal, NIIT, and state layers together.

FAQ

Frequently asked questions

Where do the 2026 capital gains brackets come from?

IRS Revenue Procedure 2025-32 inflation-adjusted the 2026 ordinary and long-term capital gains thresholds. Always confirm the current Rev. Proc. before filing.

Is NIIT indexed for 2026?

The statutory MAGI thresholds for NIIT ($200,000 / $250,000 / $125,000) have not received the same annual inflation adjustment as the LTCG 0% and 15% cutoffs.

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