Side-by-side tax comparison between Iowa (3.8% top rate, flat) and Minnesota (9.85% top rate, graduated). See which state lets you keep more at every salary level, and how cost of living changes the picture.
Iowa uses a flat income tax (3.8% flat) while Minnesota has a graduated system (5.35-9.85%). On a $100K salary, Iowa takes $3,800 in state and local taxes compared to Minnesota’s $6,402 \u2014 a difference of $2,602.
Because Iowa has flat brackets while Minnesota is graduated, the gap between them changes at different income levels. Iowa’s flat rate is predictable, while Minnesota’s graduated brackets may benefit lower earners but penalize higher incomes.
Iowa wins at 10 out of 10 salary levels tested. The advantage is consistent and significant across the income spectrum.
| Salary | Iowa | Minnesota | Difference | Winner |
|---|---|---|---|---|
| $40K | $32,800 | $31,759 | −$1,041 | Iowa |
| $50K | $40,455 | $39,154 | −$1,301 | Iowa |
| $60K | $48,110 | $46,549 | −$1,562 | Iowa |
| $75K | $58,688 | $56,736 | −$1,952 | Iowa |
| $100K | $75,325 | $72,723 | −$2,603 | Iowa |
| $120K | $88,635 | $85,512 | −$3,123 | Iowa |
| $150K | $108,051 | $104,147 | −$3,904 | Iowa |
| $200K | $141,287 | $136,082 | −$5,205 | Iowa |
| $250K | $173,764 | $167,258 | −$6,506 | Iowa |
| $300K | $203,929 | $196,121 | −$7,808 | Iowa |
Take-home pay only tells part of the story. Iowa has a cost of living index of 89 while Minnesota is at 99 (national average = 100).
The cost of living gap is moderate. After adjustment, $100K has purchasing power of $84,635 in Iowa vs $73,457 in Minnesota. The take-home winner also wins on purchasing power.
For a single earner at $100K filing jointly, take-home becomes $80,910 in Iowa and $78,308 in Minnesota \u2014 a difference of $2,603. The gap remains similar regardless of filing status.
On paper, moving from Minnesota to Iowa would save $2,603/year on a $100K salary, or $13,013 over 5 years. But relocation involves real costs: moving expenses, potentially buying/selling a home, changing jobs, and adjusting to a new community.
The $2,603/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.