2026 tax year · South Dakota
1099 tax calculator for South Dakota
South Dakota has no state income tax, so a self-employed worker there owes only federal income tax and self-employment tax on their 1099 income.
Switching state opens that state's page.
Enter your numbers and press Calculate to see your 2026 estimate.
How 1099 tax works in South Dakota
South Dakota levies no personal income tax for 2026, so the state column of the estimate above is zero. The federal layer still applies in full, a no-income-tax state does not reduce it.
On top of that sits the federal layer, which is the same wherever you live: self-employment tax plus federal income tax. The 1099 tax calculator hub works through how that half is built.
Worked example: $50,000 of 1099 income in South Dakota
A single filer with $50,000 of net 1099 income and no W-2 wages, taking the standard deduction, owes an estimated:
| Self-employment tax | $7,065 |
| Federal income tax | $2,667 |
| South Dakota state income tax | $0 |
| Total tax | $9,732 |
| Effective rate | 19.5% |
| After-tax income | $40,268 |
South Dakota against the states it borders
On $50,000, South Dakota charges $0 of state income tax. Of the 6 states it borders, Wyoming is the lightest at nothing at all and Minnesota the most expensive at $2,932, a spread of $2,932 on the same income.
| State | Tax on $50,000 | vs South Dakota |
|---|---|---|
| Wyoming | No income tax | same |
| North Dakota | $98 | +$98 |
| Montana | $1,797 | +$1,797 |
| Iowa | $1,900 | +$1,900 |
| Nebraska | $1,974 | +$1,974 |
| Minnesota | $2,932 | +$2,932 |
- Wyoming works out the same as South Dakota on this income.
- North Dakota would take $98 more, $98 against South Dakota's $0.
- Montana would take $1,797 more, $1,797 against South Dakota's $0.
- Iowa would take $1,900 more, $1,900 against South Dakota's $0.
- Nebraska would take $1,974 more, $1,974 against South Dakota's $0.
- Minnesota would take $2,932 more, $2,932 against South Dakota's $0.
What this estimate assumes
- Single filer, $16,100 federal standard deduction, net profit after expenses.
- No local income tax is modeled.
- Nothing is withheld and South Dakota collects no income tax, so the whole liability is yours to set aside.
South Dakota 1099 tax questions
Does South Dakota tax 1099 income?
No. South Dakota has no personal income tax for 2026, so 1099 profit earned there faces federal income tax and self-employment tax only. On the $50,000 example above that is $9,732 in total tax and nothing to the state.
How much should a 1099 worker in South Dakota set aside?
About 19% of net profit, based on the $50,000 single-filer example above ($9,732 of federal, self-employment and no state tax combined). Your own rate moves with filing status, other income and deductions, run the calculator with your numbers.
Are there local income taxes in South Dakota?
The estimate above models federal, self-employment and state income tax only, it does not include any city, county or school-district income tax. The 2026 dataset carries no local-tax note for South Dakota, so check with the municipality where you live and work before relying on the state figure alone.
When are quarterly estimated payments due?
Federal 1040-ES payments for the 2026 tax year are due April 15, 2026, June 16, 2026, September 15, 2026, January 15, 2027. South Dakota has no income tax, so there is no state estimated payment to make.