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Washington D.C. Capital Gains Tax Calculator (2025)

Calculate federal and Washington D.C. capital gains tax on stocks, real estate, and investments. See short-term, long-term, and NIIT rates for D.C. residents.

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Total Capital Gains Tax

$11,750

23.50%

Effective CG Rate

Net After Tax

$38,250

Federal CG Tax

$7,500

DC State Tax

$4,250

Summary

Your total capital gains tax is $11,750 (23.50% effective rate) on $50,000 in gains.

Long-term gains: $50,000 at 15% — 15.00% blended federal rate.

No NIIT applies — your income is below the $200,000 MAGI threshold for your filing status.

Washington D.C. taxes capital gains at 8.50% effective rate, adding $4,250 to your total tax.

Net After Tax: $38,250
Fed LTCG

3 rows

Tax ComponentTax AmountEffective Rate
Federal Long-Term CG Tax$7,50015.00%
Washington D.C. Capital Gains Tax$4,2508.50%
Total Capital Gains Tax$11,75023.50%

Estimated federal and Washington D.C. capital gains tax. Excludes wash sale rules, 1031 exchanges, qualified opportunity zones, and state-specific exclusions. Not tax advice.

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