💼 South Dakota Self-Employment Tax Calculator
Enter your income to see your South Dakota tax breakdown.
No Income Tax, but Your Invoices May Be Taxable
Services are taxable unless the law exempts them
Most states tax goods and leave services alone. South Dakota does the opposite: a service is taxable unless it is specifically exempt. Health care, education and social services are exempt. Design, photography, consulting, bookkeeping, web development and most other freelance work are not.
If your client receives the service in South Dakota, you generally charge sales tax on the invoice. Work delivered to a client in another state is generally sourced to where the client receives it, so it does not carry South Dakota tax.
The rate is 4.2% until mid-2027
The state rate is 4.2%. That is a temporary reduction which expires on June 30, 2027, when the rate returns to 4.5%. Cities add up to 2%, so the combined rate in most towns is about 6.2%. Before your first taxable sale you need a sales tax license from the Department of Revenue, and you then file returns on the schedule the department assigns.
It passes through, but it still affects pricing
Sales tax is collected from the client, so it is not a cost to you in the way income tax is. It still matters. A business client can usually absorb it. A consumer comparing you with an out-of-state freelancer who charges no tax sees a price about 6% higher. Quote your prices before tax and say clearly that tax will be added.
What you pay on income
There is no state income tax return and no state quarterly payment. On $75,000 of net profit the whole income tax bill is federal: $17,101. No South Dakota city or county taxes income.
South Dakota by the Numbers
What a single freelancer pays in South Dakota (2026)
| Net profit | South Dakota state tax | Total tax (SE + federal + state) | Take-home | Effective rate |
|---|---|---|---|---|
| $50,000 | $0 | $10,461 | $39,539 | 20.9% |
| $75,000 | $0 | $17,101 | $57,899 | 22.8% |
| $100,000 | $0 | $25,745 | $74,255 | 25.7% |
| $150,000 | $0 | $43,385 | $106,615 | 28.9% |
Single filer, standard deduction, no QBI or other deductions. Computed with the same 2026 engine as the calculator.
How South Dakota compares to its neighbors at $75,000
| State | State tax | Total tax | vs South Dakota |
|---|---|---|---|
| North Dakota | $100 | $17,201 | $100 more |
| Minnesota | $3,216 | $20,318 | $3,216 more |
| Nebraska | $2,292 | $19,393 | $2,292 more |
| Wyoming | $0 | $17,101 | same |
Sources: IRS Rev. Proc. 2025-32 (federal brackets and standard deduction), SSA 2026 wage base ($184,500), South Dakota Department of Revenue, and the Tax Foundation's 2026 state income tax table. Last updated October 7, 2026.
South Dakota Freelancer FAQ
Does South Dakota tax 1099 income?
No. South Dakota has no individual income tax, so freelance income is subject only to federal income tax and self-employment tax.
Do freelancers charge sales tax in South Dakota?
Usually yes. Services are taxable in South Dakota unless specifically exempt, and most freelance services are not exempt. You need a sales tax license from the Department of Revenue before making taxable sales.
What is the South Dakota sales tax rate?
The state rate is 4.2% through June 30, 2027, after which it returns to 4.5%. Cities can add up to 2%, so most towns have a combined rate of about 6.2%.
Do I charge South Dakota sales tax to out-of-state clients?
Generally no. Services are sourced to where the client receives them, so work delivered to a client outside South Dakota does not carry South Dakota tax.
📐 How these South Dakota numbers are produced
The calculator and every table on this page run the same engine: 2026 federal brackets and standard deduction, and self-employment tax at 15.3% on 92.35% of net profit. South Dakota does not tax earned income, so the state line is zero and the whole income tax bill is federal. When a legislature changes a rate during the year, the engine is updated and the change is recorded on the methodology and changelog page.
- Federal brackets & standard deduction: IRS Rev. Proc. 2025-32 (2026)
- Self-employment tax: 15.3% with the 92.35% net-earnings adjustment, the 50% SE-tax deduction, and the 0.9% Additional Medicare Tax, per IRS rules
- Social Security wage base: $184,500 for 2026 (SSA)
- South Dakota figures: South Dakota Department of Revenue, cross-checked against the Tax Foundation's 2026 table
Built & maintained by Rahul B.
A software developer who got tired of “free” 1099 calculators that use lazy flat rates and give wrong numbers — so I built one on the actual 2026 IRS brackets and real state-by-state rates, updated every tax year. More about this tool →
Last reviewed for tax year 2026 · Independent tool — not affiliated with the IRS. Estimates for planning only; verify with a tax professional before filing.