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Colorado Capital Gains Tax Calculator (2025)

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

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Total Capital Gains Tax

$9,700

19.40%

Effective CG Rate

Net After Tax

$40,300

Federal CG Tax

$7,500

CO State Tax

$2,200

Summary

Your total capital gains tax is $9,700 (19.40% 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.

Colorado taxes capital gains at 4.40% effective rate, adding $2,200 to your total tax.

Net After Tax: $40,300
Fed LTCG

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Tax ComponentTax AmountEffective Rate
Federal Long-Term CG Tax$7,50015.00%
Colorado Capital Gains Tax$2,2004.40%
Total Capital Gains Tax$9,70019.40%

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

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