South Dakota Sales Tax Permit Cost (2026)
Registering for a sales-tax permit (seller's permit) in South Dakota is free. Free registration through SD DOR's ePath system. You'll need it before you can legally collect sales tax from customers.
Verified July 2026 from official sources. How we verify fees.
What it costs in South Dakota
- Registration fee: Free
- Renewal: No renewal
- Resale certificate: free / self-issued
- Also needed: an EIN (free from the IRS) and usually a registered business
How it works
You register through the South Dakota Department of Revenue, usually online, and receive your permit (often the same day). Free registration through SD DOR's ePath system. A sales-tax permit is separate from forming the business itself — see our South Dakota LLC and DBA cost pages for those fees.
Frequently asked questions
How much is a sales tax permit in South Dakota?
It's free to register for a seller's permit in South Dakota.
Do I need a sales tax permit in South Dakota?
Yes, if you sell taxable goods or services in South Dakota — you must register before collecting any sales tax from customers.
Does a South Dakota sales tax permit expire?
Renewal: no renewal.