Last Updated June 18, 2026.
South Dakota does not impose a state income tax, but employers must still comply with unemployment insurance and employment regulations. Use these resources to access state agency information.
State Tax Guidelines
No Withholding Tax
South Dakota Department of Labor and Regulation, Unemployment Insurance Division – Unemployment tax
Agency Information
Add to existing company setup
Submit a request to your service team to add SDSUI (unemployment) to your company setup. Please include the below with your request:
- Unemployment – Account Number and Tax rate. This can be found on a Tax Rate Notice or the Quarterly contribution report. If you’re unsure of your tax rate or account number, you can call the agency at 605-626-2312.
- Power of Attorney- POA is required, please obtain the prefilled form from your client service representative.
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