Are local / city taxes included in this Colorado paycheck calculator?

The headline take-home figure includes federal + state + FICA. Local taxes (city, county, municipal occupational, school district) are not applied to the headline number but are flagged separately for the eight states where they materially change take-home: NY (NYC, Yonkers), PA (Philly, Pittsburgh), MI (Detroit + 22 cities), OH (RITA / CCA cities), KY (most counties), MD (all counties), IN (all counties), and AL (Birmingham, Macon, Bessemer).

What's the difference between marginal and effective tax rate in Colorado?

Marginal rate = the rate applied to your next dollar of income. Effective rate = total tax paid ÷ total gross income. In states with graduated brackets like California or New York, marginal can run 8-10% while effective at $100K is 4-6%. Colorado's structure: 4.4% flat (2026) — see the income-tier reference table on this page for effective rate at each tier.

What's the Colorado flat tax rate?

Colorado's state income tax structure: 4.4% flat (2026) . The flat-rate model means your marginal and effective state-tax rates are identical at every income tier — a clean simplification compared with graduated-bracket states.

How does Colorado compare to neighboring states for paycheck math?

See the comparison row on this page (cross-state take-home at $100K reference income). For a deeper four-way ranking across all 51 states + DC, the Real Wage Atlas ranks every state by real wage, after-tax take-home, state-tax savings vs national average, and cost-of-living arbitrage.

Does Colorado's flat tax apply to capital gains, dividends, retirement income?

Colorado flat-rate state tax generally applies to most W-2 wages, self-employment income, and ordinary investment income. Treatment of pensions, Social Security, IRA distributions, and capital gains varies — most flat-tax states tax these at the same flat rate as wages, but exceptions exist (e.g., PA exempts most retirement income from state tax entirely; IL exempts retirement). The calculator on this page applies to W-2 wage income.

How current is the tax data on this Colorado paycheck calculator?

Federal brackets are 2026 (IRS Rev. Proc. 2023-34, single filer). FICA wage base is the 2026 $183,600 figure. Colorado state brackets are 2026 single-filer figures sourced from the Colorado Department of Revenue or Tax Foundation 2026 individual income tax structure summary. Bracket numbers update annually around January; this page is re-synced each tax year. See the methodology · tax page for the complete source list and limitations.

Why doesn't Colorado use brackets like California or New York?

Flat-rate state taxes are politically and administratively simpler — one rate, no brackets to update annually, easier withholding, smaller compliance burden for employers. The trade-off is regressive distribution at low incomes (a flat 4-5% tax on a $30K wage is a heavier burden than the same percentage on $200K). About a dozen U.S. states have moved to or maintained flat-rate structures.

Colorado Take-Home Pay Calculator — 2026 Federal/State/FICA Stack

TL;DR — Colorado take-home

The Colorado state-tax structure is flat-rate (no brackets), which means a raise from $80K to $200K is taxed at the same state percentage at the margin. Federal + state + FICA on $100K = $75,396.

Colorado's cost of living tracks roughly with the national average (BEA RPP 101.9), so nominal and real take-home stay close — both around the $75,396 mark.

Reference take-home table — Colorado (2026, single filer)

Gross W-2	Federal	State	FICA	Take-home	Effective rate
$40,000	$2,662	$1,067	$3,060	$33,211	17.0%
$60,000	$5,062	$1,947	$4,590	$48,401	19.3%
$80,000	$8,847	$2,827	$6,120	$62,206	22.2%
$100,000	$13,247	$3,707	$7,650	$75,396	24.6%
$130,000	$20,018	$5,027	$9,945	$95,010	26.9%
$160,000	$27,218	$6,347	$12,240	$114,195	28.6%
$200,000	$36,818	$8,107	$14,283	$140,792	29.6%

Standard deductions ($15,750 federal + state-specific 2026 figure) applied before bracket math. FICA = SS 6.2% to $183,600 + Medicare 1.45% (+0.9% above $200K). Local taxes (city/county) not in headline numbers.

How Colorado taxes work — 2026 structure

Flat-rate state income tax — same rate at every income tier

Colorado uses a flat-rate state income tax: 4.4% flat (2026). The flat-rate model means your effective and marginal state-tax rates are identical at every income tier — a simplification compared with graduated states.

The state's 2026 standard deduction is applied before the flat rate. FICA stack is the same as everywhere else (SS + Medicare). Local-tax overlay applies on top of state in some jurisdictions — see the local section below if applicable.

Real take-home — Colorado cost of living adjusted

Metric	Colorado value
BEA Regional Price Parity (all-items, 2023)	101.9 (US = 100)
RPP — goods	99.2
RPP — rents	130.5
RPP — services	86.8
$100K gross take-home (nominal)	$75,396
Real take-home (purchasing power)	$74,022

Colorado's overall RPP (101.9) tracks close to the national 100 baseline, so nominal and real take-home stay close — both around the $75,396 mark.

Compared with Colorado's neighbors at $100K gross

State	$100K take-home	Effective rate	Page
Colorado (this page)	$75,396	24.6%	—
Utah	$75,312	24.7%	Utah paycheck →
Wyoming	$79,103	20.9%	Wyoming paycheck →
New Mexico	$75,315	24.7%	New Mexico paycheck →
Kansas	$74,060	25.9%	Kansas paycheck →

Same single-filer assumptions across all rows. Federal + state + FICA only — local taxes not applied here.

Frequently asked — Colorado paycheck

Are local / city taxes included in this Colorado paycheck calculator?: The headline take-home figure includes federal + state + FICA. Local taxes (city, county, municipal occupational, school district) are not applied to the headline number but are flagged separately for the eight states where they materially change take-home: NY (NYC, Yonkers), PA (Philly, Pittsburgh), MI (Detroit + 22 cities), OH (RITA / CCA cities), KY (most counties), MD (all counties), IN (all counties), and AL (Birmingham, Macon, Bessemer).
What's the difference between marginal and effective tax rate in Colorado?: Marginal rate = the rate applied to your next dollar of income. Effective rate = total tax paid ÷ total gross income. In states with graduated brackets like California or New York, marginal can run 8-10% while effective at $100K is 4-6%. Colorado's structure: 4.4% flat (2026) — see the income-tier reference table on this page for effective rate at each tier.
What's the Colorado flat tax rate?: Colorado's state income tax structure: 4.4% flat (2026). The flat-rate model means your marginal and effective state-tax rates are identical at every income tier — a clean simplification compared with graduated-bracket states.
How does Colorado compare to neighboring states for paycheck math?: See the comparison row on this page (cross-state take-home at $100K reference income). For a deeper four-way ranking across all 51 states + DC, the Real Wage Atlas ranks every state by real wage, after-tax take-home, state-tax savings vs national average, and cost-of-living arbitrage.
Does Colorado's flat tax apply to capital gains, dividends, retirement income?: Colorado flat-rate state tax generally applies to most W-2 wages, self-employment income, and ordinary investment income. Treatment of pensions, Social Security, IRA distributions, and capital gains varies — most flat-tax states tax these at the same flat rate as wages, but exceptions exist (e.g., PA exempts most retirement income from state tax entirely; IL exempts retirement). The calculator on this page applies to W-2 wage income.
How current is the tax data on this Colorado paycheck calculator?: Federal brackets are 2026 (IRS Rev. Proc. 2023-34, single filer). FICA wage base is the 2026 $183,600 figure. Colorado state brackets are 2026 single-filer figures sourced from the Colorado Department of Revenue or Tax Foundation 2026 individual income tax structure summary. Bracket numbers update annually around January; this page is re-synced each tax year. See the methodology · tax page for the complete source list and limitations.
Why doesn't Colorado use brackets like California or New York?: Flat-rate state taxes are politically and administratively simpler — one rate, no brackets to update annually, easier withholding, smaller compliance burden for employers. The trade-off is regressive distribution at low incomes (a flat 4-5% tax on a $30K wage is a heavier burden than the same percentage on $200K). About a dozen U.S. states have moved to or maintained flat-rate structures.

Sources & methodology

Federal brackets — IRS Rev. Proc. 2025-32, 2026 single-filer tables, $15,750 standard deduction.
Colorado state brackets — 2026 Colorado Department of Revenue / Tax Foundation 2026 individual income tax structure summary. State standard deduction applied where relevant.
FICA — Social Security 6.2% on wages up to the 2026 wage base of $183,600; Medicare 1.45% on all wages; +0.9% Additional Medicare on wages above $200K (single filer).
BEA Regional Price Parities — 2023 vintage (all-items, goods, services, rents).
See the methodology · tax for full computation details and limitations.

By Marcus Liang · Founder & Editor · Last synced 2026-05-05.

Cross-state comparison: see how Colorado take-home ranks against the other 50 paycheck calculators on the Real Wage Atlas → — four-way ranking by real wage, after-tax take-home, state-tax savings, and cost-of-living arbitrage.