South Dakota Sales Tax
The state sales tax rate in South Dakota is 4.2%. With typical city and county taxes the average combined rate is about 6.11%.
South Dakota sales tax on common purchases
| Price | Tax at state rate | Tax at average combined rate | Total with average rate |
|---|---|---|---|
| $20 | $0.84 | $1.22 | $21.22 |
| $100 | $4.20 | $6.11 | $106.11 |
| $500 | $21.00 | $30.55 | $530.55 |
| $1,000 | $42.00 | $61.10 | $1,061.10 |
| $5,000 | $210.00 | $305.50 | $5,305.50 |
| $25,000 | $1,050.00 | $1,527.50 | $26,527.50 |
What is taxed in South Dakota
Most states tax goods such as electronics, clothing and furniture. Many exempt groceries, prescription drugs or both, and tax services less often than goods. Cars are usually taxed at registration, sometimes at a different rate. Confirm the exact treatment of an item with the South Dakota department of revenue.
How South Dakota compares
The average combined sales tax across states is about 6.61%. South Dakota is below that average. Nearby on the list:
| State | State rate | Average combined |
|---|---|---|
| Maryland | 6% | 6% |
| Michigan | 6% | 6% |
| Idaho | 6% | 6.03% |
| South Dakota | 4.2% | 6.11% |
| Massachusetts | 6.25% | 6.25% |
| Pennsylvania | 6% | 6.34% |
| Connecticut | 6.35% | 6.35% |
Buying a car or paying online
Vehicle purchases are often taxed when you register the car; see the South Dakota car sales tax page. Online sellers must collect sales tax in most states, so the checkout total usually already includes it.
Frequently asked questions
What is the sales tax in South Dakota?
The state rate is 4.2%; the average combined rate with local taxes is 6.11%.
Does South Dakota tax groceries?
Treatment varies by state and by item. Check the state revenue department for the current rule.
Sources and method
- Tax Foundation: state and local sales tax rates
- Official South Dakota department of revenue (confirm current local rates)
Page last updated November 2026. See our editorial policy and disclaimer.