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Colorado Income Tax (2026)
Info: Flat 4.40% — Colorado taxes all individual income at a single flat rate (4.40% for tax year 2025).
InfoVerified Jul 4, 2026
Tax rules change at the state line.Track them in the free LawLert iPhone app and get an alert when you cross into a state where they differ. No account.Get the appFlat 4.40% — Colorado taxes all individual income at a single flat rate (4.40% for tax year 2025).
Official source: tax.colorado.gov →
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