Iowa vs Kansas:
Take-Home Pay Comparison
Side-by-side tax comparison between Iowa (3.8% top rate, flat) and Kansas (5.58% top rate, graduated). See which state lets you keep more at every salary level, and how cost of living changes the picture.
Tax Structure: Iowa vs Kansas
Iowa uses a flat income tax (3.8% flat) while Kansas has a graduated system (5.2-5.58%). On a $100K salary, Iowa takes $3,188 in state and local taxes compared to Kansas’s $4,780 \u2014 a difference of $1,592.
Because Iowa has flat brackets while Kansas is graduated, the gap between them changes at different income levels. Iowa’s flat rate is predictable, while Kansas’s graduated brackets may benefit lower earners but penalize higher incomes.
Take-Home at Every Salary Level
Iowa wins at 10 out of 10 salary levels tested. The advantage exists but is modest across the income spectrum.
| Salary | Iowa | Kansas | Difference | Winner |
|---|---|---|---|---|
| $40K | $33,412 | $32,888 | −$524 | Iowa |
| $50K | $41,067 | $40,365 | −$702 | Iowa |
| $60K | $48,722 | $47,842 | −$880 | Iowa |
| $75K | $59,299 | $58,152 | −$1,147 | Iowa |
| $100K | $75,937 | $74,345 | −$1,592 | Iowa |
| $120K | $89,247 | $87,299 | −$1,948 | Iowa |
| $150K | $108,663 | $106,181 | −$2,482 | Iowa |
| $200K | $141,899 | $138,527 | −$3,372 | Iowa |
| $250K | $174,376 | $170,114 | −$4,262 | Iowa |
| $300K | $204,540 | $199,388 | −$5,152 | Iowa |
Cost of Living: Iowa (89) vs Kansas (90)
Take-home pay only tells part of the story. Iowa has a cost of living index of 89 while Kansas is at 90 (national average = 100).
With similar costs of living (89 vs 90), the tax difference is the primary factor. What you see in raw take-home pay is essentially what you get in purchasing power: $85,322 in Iowa vs $82,605 in Kansas.
Married Filing Jointly: How It Changes the Comparison
For a single earner at $100K filing jointly, take-home becomes $82,134 in Iowa and $80,787 in Kansas \u2014 a difference of $1,347. The gap narrows under married filing, as the wider brackets reduce the tax bite in both states.
Should You Move from Kansas to Iowa?
On paper, moving from Kansas to Iowa would save $1,592/year on a $100K salary, or $7,961 over 5 years. But relocation involves real costs: moving expenses, potentially buying/selling a home, changing jobs, and adjusting to a new community.
At $1,592/year, the tax difference alone likely isn’t worth relocating for. Other factors — job market, lifestyle, family — should drive the decision. The tax savings are a nice bonus if you’re already considering the move for other reasons.