Colorado Tax Calculators.
Tax year 2026 income tax rates, brackets, and sales tax for Colorado. Returns for tax year 2026 are generally filed in 2027; source links and last-verified dates are shown below.Tax year 2026 means income earned during calendar year 2026; those returns are generally filed in 2027. State and local sales tax rates can change during the year, so confirm current rules before filing or remitting tax.
Income Tax
Colorado uses federal basic deductions and the enacted $300,000-or-more AGI limit: $1,000 single or head of household and $2,000 joint. Itemized estimates add back the entered state-income-tax component subject to the federal standard-deduction limit, then reduce the high-income addback to avoid duplication. AMT, QBI, pass-through items, Schedule 1-A deductions, special state adjustments and credits are excluded.
| Taxable Income | Rate |
|---|---|
| All taxable income | 4.4% |
Sales Tax
Qualifying food for home consumption is exempt from Colorado state sales tax. Local and home-rule treatment can differ. Qualifying prescription drugs are exempt. Combined rates shown are population-weighted July 1, 2026 estimates; actual item and local rates vary.
Colorado’s ordinary flat income-tax rate is 4.4%. Its low state sales tax rate of 2.9% is offset by relatively high local add-ons.
What is Colorado's income tax rate?
Colorado has a flat income tax rate of 4.4% applied to all taxable income. The state uses federal taxable income as its starting point.
Does Colorado tax groceries?
Qualifying food for home consumption is exempt from Colorado’s 2.9% state sales tax. Local and home-rule jurisdictions can treat food differently.
Does Colorado have a TABOR refund?
Colorado’s TABOR rules limit revenue the state may retain and spend. Refund mechanisms can apply when revenue exceeds the limit, but availability, amounts and eligibility depend on the tax year and applicable law. No TABOR refund is included in this estimate.
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