Sales tax by state · South Dakota
South Dakota Sales Tax Rate
The statewide sales tax in South Dakota is 4.2%, the 20th-highest statewide rate. With local taxes added, shoppers in Sioux Falls pay 6.2%. Here’s how that compares nationally and what you pay in the state’s major cities.
- South Dakota state rate 4.2% statewide base rate
- National rank 20th of 51, highest first
- Sioux Falls combined 6.2% state + local, ZIP 57104
- Tax on $100 $6.20 in Sioux Falls
Sales tax in South Dakota
South Dakota charges a statewide sales tax of 4.2%, 0.82 percentage points below the 5.02% average across all states. Counties, cities and special districts can add their own taxes on top, so the total at the register is usually higher than the state rate.
Combined rates in South Dakota’s major cities
The combined rate for one downtown ZIP code in each city, broken down by who charges it:
| City | State | County | City | Special | Combined |
|---|---|---|---|---|---|
| Sioux Falls 57104 | 4.2% | 0% | 2% | 0% | 6.2% |
| Rapid City 57701 | 4.2% | 0% | 2% | 0% | 6.2% |
What sales tax adds in Sioux Falls
At the 6.2% combined rate in Sioux Falls, sales tax adds:
For any other address in South Dakota, enter its ZIP code in the sales tax calculator to get the exact combined rate.
How South Dakota compares
Among all 51 states and DC, South Dakota’s 4.2% is the 20th-highest statewide rate. The average statewide rate is 5.02%, and the highest is California’s 7.25%. See every state ranked on sales tax by state.
South Dakota sales tax — FAQ
What is the sales tax rate in South Dakota?
The statewide sales tax rate in South Dakota is 4.2%. That is the 20th-highest statewide rate and 0.82 percentage points below the 5.02% average across all states. Local taxes can add more depending on where you shop.
What is the sales tax in Sioux Falls, South Dakota?
The combined sales tax rate in downtown Sioux Falls (ZIP 57104) is 6.2%: 4.2% state, 2% city. Rates in other parts of the city can differ.
How do I calculate sales tax in South Dakota?
Multiply the price by the combined rate where you buy. In Sioux Falls, a $100 purchase carries $6.20 in tax (6.2%), for $106.20 total. For any other location, enter the ZIP code in the sales tax calculator.
Is South Dakota's sales tax high compared with other states?
Among all 51 states and DC, South Dakota’s 4.2% is the 20th-highest statewide rate, 0.82 percentage points below the 5.02% average across all states. The highest is California’s 7.25%.
Rates as of September 2026. City rates are for one downtown ZIP code and can differ elsewhere in the city.
Data: State departments of revenue, via APIVerve. Our tables, charts and text are licensed CC BY 4.0: reuse them freely, including commercially, as long as you credit us. Cite as: Digest Your Finances, “Sales Tax by State”, https://digestyourfinances.com/studies/sales-tax-by-state/south-dakota/ — based on State departments of revenue. CC BY 4.0.
