How much can I sell without paying capital gains tax?
Long-term gains are taxed at 0%, 15%, or 20% depending on your total taxable income. The gain stacks on top of your other income, so the 0% room is whatever is left under the line.
Your result
Medicare and investment-income check
Open the Medicare IRMAA calculatorHow we calculated it
- Your gain is stacked on top of your other taxable income.
- The part at or below the 0% line is untaxed, the part up to the 15% line is taxed at 15%, and anything above is taxed at 20%.
Simplified. Long-term gains and federal tax only; ignores state taxes, collectibles and real-estate depreciation rates, and qualified dividends. Short-term gains are taxed as ordinary income.
Common questions
What is the 0% capital gains rate?
Long-term gains (assets held more than a year) are taxed at 0% to the extent your total taxable income, including the gain, stays at or below $49,450 (single) or $98,900 (married filing jointly) in 2026.
Do gains count toward my Medicare IRMAA income?
Yes. Capital gains are part of adjusted gross income, so a large sale can lift your income over an IRMAA line two years later.
What is the net investment income tax?
An extra 3.8% on investment income when modified adjusted gross income is above $200,000 (single) or $250,000 (married filing jointly). These amounts are not adjusted for inflation.
Does this cover short-term gains?
No. Gains on assets held a year or less are taxed as ordinary income; use the Roth conversion bracket calculator to see how income fills the ordinary brackets.