Colorado vs 
Washington
Take-home pay after federal tax, state income tax, and FICA — calculated with the same engine as our paycheck calculator.
By Sammy S. · Founder · AuthorUpdated for 2026
Winner at $100k
Washington
Extra take-home / year
$3,785
Per month
$315
Over 10 years
$37,850
Moving from Colorado → Washington at $100,000
Metric vs metric
Lower tax and cost figures generally favor the highlighted cell. Rate structure notes sit under each state's calculator link.
| Metric | Colorado | Washington |
|---|---|---|
| Income tax | 4.40% · Flat 4.40% | 0% · No state income tax (0%) |
| Combined sales tax | ~7.89% | ~9.57% |
| Effective property tax | ~0.5% | ~0.75% |
| Cost of living index | 101.8 | 114.6 |
| Median household income | $89,800 | $90,800 |
| Unemployment rate | 3.4% | 4.2% |
Dig into each state's paycheck
Colorado rate structure
Flat 4.40% state income tax on taxable wages (before credits).
Washington rate structure
No state income tax on wages; revenue relies more on sales and property taxes.
Overview
Colorado has flat 4.40%, while Washington has no state income tax. Moving from Colorado to Washington saves about $3,785/year in take-home at $100,000 gross (single filer). Sales tax: ~7.89% vs ~9.57%. Property tax: ~0.5% vs ~0.75%. Median household income (ACS 2024): $89,800 vs $90,800.
Take-home by income
Net pay after federal income tax, state income tax, and FICA — single filer, standard deduction, no dependents (2026). Advantage is take-home in Washington minus Colorado.
| Gross | Colorado take-home | Washington take-home | Advantage |
|---|---|---|---|
| $50,000 | $40,155 | $42,048 | +$1,893 |
| $75,000 | $58,293 | $61,131 | +$2,838 |
| $100,000Headline | $74,780 | $78,565 | +$3,785 |
| $150,000 | $107,191 | $112,869 | +$5,678 |
| $200,000 | $140,127 | $147,697 | +$7,570 |
| $500,000 | $318,477 | $337,402 | +$18,925 |
Assumptions: single filer, standard deduction, no dependents, tax year 2026. At $100k: FICA ≈ $7,650 in both states; effective total tax rate ≈ 25.2% in Colorado vs 21.4% in Washington. Local city taxes are not included unless noted.
$100k tax breakdown: Colorado vs Washington
Where a $100,000 paycheck goes after federal income tax, state income tax, and FICA (2026, single filer).
| Line item | Colorado | Washington |
|---|---|---|
| Gross pay | $100,000 | $100,000 |
| Federal income tax (est.) | $13,170 | $13,170 |
| State income tax | $4,400 | $0 |
| FICA (SS + Medicare) | $7,650 | $7,650 |
| Take-home pay | $74,780 | $78,565 |
| Effective total tax rate | 25.2% | 21.4% |
| Monthly take-home | $6,232 | $6,547 |
Federal estimates can differ slightly between states when state interactions affect taxable income. Combined sales tax ~7.89% (Colorado) vs ~9.57% (Washington); effective property tax ~0.5% vs ~0.75%.
Pros & cons: Colorado vs Washington
Tax structure, living costs, and lifestyle trade-offs beyond the paycheck number.
Colorado
Pros
- Lower combined sales tax (~7.89% vs ~9.57% in Washington)
- Lower effective property tax (~0.5% vs ~0.75% in Washington)
- Lower cost of living index (101.8 vs 114.6; 100 = US average)
- Lower unemployment rate (3.4% vs 4.2%)
Cons
- −State income tax (Flat 4.40%) reduces take-home vs a $0-income-tax peer
- −Roughly $3,785/year less take-home at $100k vs Washington
- −Local city/county taxes and credits are not fully modeled in the headline ladder
Washington
Pros
- No state income tax on wages — $0 withholding vs Colorado's state tax
- About $3,785/year more take-home at $100k gross (single) vs Colorado
- Modeled with our 2026 federal + state + FICA paycheck engine
Cons
- −Higher combined sales tax (~9.57% vs ~7.89% in Colorado)
- −Higher effective property tax (~0.75% vs ~0.5% in Colorado)
- −Higher cost of living index (114.6 vs 101.8; 100 = US average)
- −Higher unemployment rate (4.2% vs 3.4%)
Who wins when
Quick read on when each state is the better fit — beyond the headline tax number.
- Washington wins on take-home pay at every salary band in our ladder (single filer, standard deduction).
- Colorado: Lower combined sales tax (~7.89% vs ~9.57% in Washington)
- Colorado: Lower effective property tax (~0.5% vs ~0.75% in Washington)
- Washington: No state income tax on wages — $0 withholding vs Colorado's state tax
- Washington: About $3,785/year more take-home at $100k gross (single) vs Colorado
How we calculate Colorado vs Washington
Tax engine. Federal income tax uses 2026 IRS brackets and the standard deduction for a single filer. FICA includes Social Security and Medicare employee shares. State income tax applies Colorado's and Washington's rules as modeled in our US calculator (Flat 4.40% vs No state income tax (0%)).
What's included. Wage income only — no capital gains, self-employment tax, itemized deductions, credits, or local city wage taxes (e.g. NYC) unless noted. Sales tax (~7.89% vs ~9.57%) and property tax (~0.5% vs ~0.75%) are context metrics, not subtracted from the take-home ladder.
Cost of living. COL indexes (101.8 vs 114.6, 100 = US average) and median household income ($89,800 vs $90,800) help interpret whether a paycheck win buys more in real life. For city-level equivalent salary, use the Colorado → Washington relocation calculator.
Frequently asked questions
Common questions about Colorado vs Washington taxes, take-home pay, and relocation.
Moving Colorado → Washington?
Model cost-of-living equivalent salary, or open each state's paycheck calculator with your filing status and deductions.
Related tools
Estimates only for tax year 2026. Not tax advice — verify with your state tax agency or a CPA before relocating. Figures assume a single filer with the standard deduction and no dependents.