Freelancers in South Dakota: taxes and retirement for 2026
For freelance designers, developers, writers and other 1099 professionals in South Dakota. South Dakota has no state income tax on wages or self-employment income. Here are the 2026 rules, a worked example and the official sources.
South Dakota rules for freelancers
- State income tax (2026)
- South Dakota has no state income tax on wages or self-employment income. South Dakota has no personal income tax.
- Contractor's excise tax
- This is a 2% tax on gross receipts from construction services and from building, installing, or repairing fixtures to real property. Anyone doing this work must hold a South Dakota contractor's excise tax license.
- Sales tax on services
- The 4.2% state sales tax applies to gross receipts from retail sales, including services unless specifically exempt. Businesses with a physical presence in South Dakota need a sales tax license whatever their size.
- Unemployment two-part independent contractor test (SDCL 61-1-11)
- Paid work counts as employment unless the Department of Labor and Regulation is satisfied that the worker is free from control or direction, both under the contract and in fact, and is customarily engaged in an independent trade or business.
Federal rules for 2026
Self-employment tax
On top of income tax, self-employed people pay 15.3% on 92.35% of net profit: 12.4% Social Security up to the 2026 wage base of $184,500, plus 2.9% Medicare with no cap. Half of it is deductible.
All income counts, form or no form
Clients and marketplaces send 1099-NEC or 1099-K forms only above IRS reporting thresholds, but every dollar of freelance income is taxable whether or not a form arrives.
Home office and tools
If you use part of your home regularly and only for work, the simplified home-office deduction is $5 per square foot up to 300 square feet. Software, equipment and a business share of your phone and internet are deductible too.
Quarterly estimated taxes
No one withholds tax from self-employment income, so you generally pay estimates four times a year if you expect to owe $1,000 or more. For 2026 income the federal dates are April 15, June 15 and September 15, 2026, and January 15, 2027. Paying 100% of last year's tax (110% if your AGI was over $150,000) in four equal installments avoids the underpayment penalty.
A worked example
| Self-employment tax | $12,010 |
|---|---|
| Self-employment tax per quarter | $3,003 |
| Solo 401(k) maximum | $40,299 |
| SEP IRA maximum | $15,799 |
Federal figures only. Income tax comes on top; the quarterly tax calculator estimates both. Computed from 2026 IRS limits (Notice 2025-67, Rev. Proc. 2025-32) and the SSA wage base.
Free tools
Guides by job and platform
Questions
Do freelancers in South Dakota pay state income tax?
South Dakota has no state income tax on wages or self-employment income. South Dakota has no personal income tax.
Are there other South Dakota taxes for self-employed freelancers?
Contractor's excise tax: This is a 2% tax on gross receipts from construction services and from building, installing, or repairing fixtures to real property. Anyone doing this work must hold a South Dakota contractor's excise tax license. Sales tax on services: The 4.2% state sales tax applies to gross receipts from retail sales, including services unless specifically exempt. Businesses with a physical presence in South Dakota need a sales tax license whatever their size.
What South Dakota laws affect independent contractors and gig workers?
Unemployment two-part independent contractor test (SDCL 61-1-11): Paid work counts as employment unless the Department of Labor and Regulation is satisfied that the worker is free from control or direction, both under the contract and in fact, and is customarily engaged in an independent trade or business.
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Sources
- dor.sd.gov/individuals/taxes/
- dlr.sd.gov/employment_laws/minimum_wage.aspx
- dor.sd.gov/businesses/taxes/contractors-excise-tax/
- dor.sd.gov/businesses/taxes/sales-use-tax/
- sdlegislature.gov/api/Statutes/61-1-11.html
State and local facts researched from official sources and independently re-checked; last verified October 2026, next scheduled review 2027-01-02. Educational information for 2026, not tax, legal or investment advice. Rules change; check the official sources listed and a tax professional for your situation. Gigaverse AI, Inc. is a financial technology company, not a bank, and not itself a registered investment adviser or broker-dealer.