Iowa vs South Dakota Taxes: Take-Home Pay Compared (2026)
On a $75,000 salary, a single filer keeps $2,238 more a year in South Dakota than in Iowa ($187 a month).
Iowa
3.8% flat state income tax
$59,354
take-home on $75,000 · $4,946/month
15th of 51 states for take-home pay
Iowa paycheck calculator ›South Dakota
No state income tax on wages
$61,592
take-home on $75,000 · $5,133/month
1st of 51 states for take-home pay
South Dakota paycheck calculator ›Take-home pay in Iowa and South Dakota by salary
| Salary | Iowa | South Dakota | Difference |
|---|---|---|---|
| $40,000 | $33,412 | $34,320 | $908 more in South Dakota |
| $50,000 | $41,067 | $42,355 | $1,288 more in South Dakota |
| $60,000 | $48,722 | $50,390 | $1,668 more in South Dakota |
| $75,000 | $59,354 | $61,592 | $2,238 more in South Dakota |
| $100,000 | $75,992 | $79,180 | $3,188 more in South Dakota |
| $125,000 | $92,566 | $96,703 | $4,138 more in South Dakota |
| $150,000 | $108,703 | $113,791 | $5,088 more in South Dakota |
| $200,000 | $141,939 | $148,927 | $6,988 more in South Dakota |
Single filer, standard deduction, no local tax. To match $75,000 in Iowa you would need about $71,800 in South Dakota; to match $75,000 in South Dakota you would need about $78,350 in Iowa.
How Iowa and South Dakota tax wages
| 2026 | Iowa | South Dakota |
|---|---|---|
| Income tax | a flat 3.8% income tax | no state income tax |
| Top rate | 3.8% | 0% |
| Standard deduction | $16,100 single | Not applicable |
| State tax on $75k | $2,238 (3.0%) | $0 (0.0%) |
| Local wage taxes | Yes (3 modeled) | No |
| Reciprocity | Illinois | None |
Iowa vs South Dakota: FAQ
Does Iowa or South Dakota have lower income taxes in 2026?
On a $75,000 salary, a single filer keeps $2,238 more a year in South Dakota than in Iowa ($187 a month). Iowa has a flat 3.8% income tax for 2026. South Dakota has no state income tax.
What salary in South Dakota equals $75,000 in Iowa?
To take home the same $59,354 that $75,000 leaves in Iowa, you would need about $71,800 in South Dakota, based on income, payroll, and state taxes only. Housing and other living costs are not included.
How much more do high earners keep in South Dakota than in Iowa?
At $150,000 the gap is $5,088 a year: $108,703 in Iowa versus $113,791 in South Dakota. With flat or no state tax, the gap grows roughly in line with salary.
Do local taxes change the Iowa vs South Dakota comparison?
Iowa has local wage taxes in places like Des Moines (School district surtax), Cedar Rapids (School district surtax), Davenport (School district surtax). Those are on top of the statewide figures above, so check the city calculators if you live or work in one of them.