Colorado vs Washington:
Take-Home Pay Comparison
Side-by-side tax comparison between Colorado (4.4% top rate, flat) and Washington (no income tax). See which state lets you keep more at every salary level, and how cost of living changes the picture.
Tax Structure: Colorado vs Washington
Washington has no state income tax, while Colorado uses a flat system with rates of 4.4% flat. On a $100K salary, this creates a state tax difference of $3,692/year that Washington residents simply don’t pay.
Colorado’s flat 4.4% rate means the gap scales linearly with income. At $200K, you’d save $8,092 by being in Washington instead.
Take-Home at Every Salary Level
Washington wins at 10 out of 10 salary levels tested. The advantage is consistent and significant across the income spectrum.
| Salary | Colorado | Washington | Difference | Winner |
|---|---|---|---|---|
| $40K | $33,268 | $34,320 | +$1,052 | Washington |
| $50K | $40,863 | $42,355 | +$1,492 | Washington |
| $60K | $48,458 | $50,390 | +$1,932 | Washington |
| $75K | $58,946 | $61,538 | +$2,592 | Washington |
| $100K | $75,433 | $79,125 | +$3,692 | Washington |
| $120K | $88,623 | $93,195 | +$4,572 | Washington |
| $150K | $107,859 | $113,751 | +$5,892 | Washington |
| $200K | $140,795 | $148,887 | +$8,092 | Washington |
| $250K | $172,972 | $183,264 | +$10,292 | Washington |
| $300K | $202,837 | $215,329 | +$12,492 | Washington |
Cost of Living: Colorado (105) vs Washington (110)
Take-home pay only tells part of the story. Colorado has a cost of living index of 105 while Washington is at 110 (national average = 100).
With similar costs of living (105 vs 110), the tax difference is the primary factor. What you see in raw take-home pay is essentially what you get in purchasing power: $71,841 in Colorado vs $71,932 in Washington.
Married Filing Jointly: How It Changes the Comparison
For a single earner at $100K filing jointly, take-home becomes $81,727 in Colorado and $84,710 in Washington \u2014 a difference of $2,983. The gap narrows under married filing, as the wider brackets reduce the tax bite in both states.
Should You Move from Colorado to Washington?
On paper, moving from Colorado to Washington would save $3,692/year on a $100K salary, or $18,458 over 5 years. But relocation involves real costs: moving expenses, potentially buying/selling a home, changing jobs, and adjusting to a new community.
The $3,692/year savings is meaningful but probably not enough to justify a move on its own. However, combined with other factors like career growth, lifestyle preferences, or family proximity, it could tip the scale.