Washington D.C. capital gains tax calculator

Washington D.C. taxes capital gains on top of federal tax: up to 10.75% (ordinary income rates).

Calculate my Washington D.C. tax

Your details

$
Income before capital gains. The 2026 standard deduction is subtracted automatically
$
Sale price minus your cost basis (what you originally paid)
Up to 10.75% (ordinary income rates)
2026 IRS rates — Rev. Proc. 2025-32

Your tax estimate

Estimated total tax on the gain
$12,875
on a $50,000 long-term gain
Effective rate: 25.8%
74%you keep
Net gain (you keep)$37,125
Federal CGT$7,500
Washington D.C. tax$5,375
Capital gain$50,000
Federal long-term rate15.0%
Federal CGT$7,500
Total federal tax$7,500
Washington D.C. (10.8%)$5,375
Total tax$12,875
Net gain after tax$37,125

Ways to reduce this bill

  • Your Washington D.C. state bill of $5,375 is significant. Installment sales and 1031 exchanges (for real estate) can spread or defer this tax.
Talk to a tax advisorFacing $12,875 of tax on this sale? Ask a CPA how to bring it downComplex situations — real estate, business sales, large stock positions — benefit from a CPA. TaxBuzz connects you to vetted tax professionals near you.Find a CPA →
Estimate only — 2026 IRS federal rates plus approximate state top marginal rates. Consult a tax professional before acting on these numbers.

What you would pay in Washington D.C.

Long-term gains (assets held more than a year) for a single filer with $75,000 of other income:

GainFederal + NIITWashington D.C.Total taxYou keep
$25,000$3,750$2,688$6,438 (25.8%)$18,563
$50,000$7,500$5,375$12,875 (25.8%)$37,125
$100,000$15,000$10,750$25,750 (25.8%)$74,250
$250,000$42,250$26,875$69,125 (27.7%)$180,875

Short-term vs long-term gains in Washington D.C.

Sell within a year and the federal government taxes the gain as ordinary income. On a $50,000 gain with the same income, that means $16,439 of tax if you sell short-term against $12,875 if you hold past one year, a difference of $3,564.

How we estimate Washington D.C. tax

Up to 10.75% (ordinary income rates). Where a state taxes gains as ordinary income on a sliding scale, the calculator applies the rate shown above to the whole gain, so for most people it is an upper estimate. Local and city income taxes are not included.

*Examples use 2026 IRS brackets, the standard deduction and the 3.8% Net Investment Income Tax. Change your filing status, income and holding period in the calculator above for your own figure.

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