South Dakota Sales Tax Calculator (2026)
South Dakota's state sales tax rate is 4.2% for 2026, and with local city and county taxes the average shopper pays about 6.11%. Calculate the tax on any purchase, or start from a receipt total and back the tax out.
South Dakota sales tax details
| State rate (2026) | 4.2% |
|---|---|
| Average combined rate | 6.11% |
| Tax on a $100 purchase (avg) | $6.11 |
| Tax on a $1,000 purchase (avg) | $61.10 |
Worth knowing: No state income tax; the 4.2% sales rate is temporarily reduced from 4.5% through mid-2027.
Frequently asked questions
What is the sales tax rate in South Dakota?
The South Dakota state sales tax rate is 4.2% in 2026. With average local (city and county) rates added, shoppers pay about 6.11% combined, though the exact rate depends on the locality.
How much is sales tax on a $1,000 purchase in South Dakota?
At the average combined rate of 6.11%, tax on a $1,000 purchase in South Dakota is about $61.10, for a total of $1,061.10.
How do I remove sales tax from a total in South Dakota?
Divide the total by 1 plus the rate. For example, at 6.11%, a receipt total of $107 ÷ 1.0611 gives the pre-tax price. The calculator on this page has a "reverse" mode that does this for you.
Last reviewed January 15, 2026 for the 2026 tax year. Rates change — always confirm against the official sources below before making financial decisions.
- South Dakota Department of Revenue — official state tax authority
- Internal Revenue Service (IRS) — 2026 federal brackets, standard deduction and FICA
- Tax Foundation — state and average local sales tax comparisons