This calculator starts with South Dakota’s combined rate of 6.11% (4.2% state + 1.91% average local). Your actual rate depends on the city, county and district of the sale — pick “Custom rate” to enter it exactly.
South Dakota sales tax rates in 2026
At 6.11%, South Dakota’s combined average rate ranks 36 of the 50 states and D.C. (1 = highest) — 0.89 percentage points below the middle value of all 51 jurisdictions (7%). Its state rate of 4.2% ranks 40 of 51.
| Measure | Rate | Rank (1 = highest) |
|---|---|---|
| State sales tax rate | 4.2% | 40 of 51 |
| Average local rate (population-weighted) | 1.91% | — |
| Combined state + average local rate | 6.11% | 36 of 51 |
| Highest local rate | 4.5% | — |
| Middle of all 51 (combined) | 7% | 26 of 51 |
The 4.2% state rate is a temporary cut (from 4.5%) in effect since July 1, 2023, scheduled to return to 4.5% on July 1, 2027. 2026 legislation (SB 96) lets counties adopt a sales tax of up to 0.5% for property-tax relief starting July 1, 2026. Very broad base that includes many services.
Sales tax on common purchases in South Dakota
Sales tax at the 4.2% state rate alone and at the 6.11% combined average, rounded to the cent:
| Purchase | State tax only (4.2%) | Tax at 6.11% combined | Total with combined tax |
|---|---|---|---|
| $100 purchase | $4.20 | $6.11 | $106.11 |
| $500 purchase | $21.00 | $30.55 | $530.55 |
| $1,000 purchase | $42.00 | $61.10 | $1,061.10 |
| $25,000 car | $1,050.00 | $1,527.50 | $26,527.50 |
The $25,000 car line uses the general rate. Many states tax vehicles under separate rules — a different rate, a cap, or tax on the price after a trade-in — so treat it as an estimate.
Groceries and items taxed differently
Groceries: Taxed at the full state rate (4.2%) plus applicable municipal taxes.
Other items, such as clothing, prescription drugs and services, can also be exempt or taxed at a different rate depending on the state. South Dakota’s tax agency publishes the rules for specific items; the sources below include its guidance on the changes noted here.
South Dakota vs. neighboring states
2 of 6 neighbors have a lower average combined rate than South Dakota and 4 have a higher one; on a $1,000 purchase the tax ranges from $0.00 in Montana to $81.40 in Minnesota, versus $61.10 in South Dakota.
| State | State rate | Avg. local | Combined | Tax on $1,000 | vs. South Dakota |
|---|---|---|---|---|---|
| Montana | 0% | 0% | 0% | $0.00 | −$61.10 |
| Wyoming | 4% | 1.39% | 5.39% | $53.90 | −$7.20 |
| South Dakota | 4.2% | 1.91% | 6.11% | $61.10 | — |
| Iowa | 6% | 0.94% | 6.94% | $69.40 | +$8.30 |
| Nebraska | 5.5% | 1.48% | 6.98% | $69.80 | +$8.70 |
| North Dakota | 5% | 2.09% | 7.09% | $70.90 | +$9.80 |
| Minnesota | 6.875% | 1.26% | 8.14% | $81.40 | +$20.30 |
Shopping across a state line doesn’t always save money: when a seller doesn’t collect your state’s tax, you generally owe use tax at your home rate. See sales tax rates for every state.
How to calculate South Dakota sales tax
- Add tax: multiply the price by 1.0611. $100.00 × 1.0611 = $106.11.
- Remove tax: divide the total by 1.0611. $1,000.00 ÷ 1.0611 = $942.42, so the tax was $57.58.
- Tax alone: multiply the price by 0.0611. On $500.00: $30.55.
If you itemize deductions, you can deduct either your state and local income taxes or your general sales taxes on your federal return, within the SALT cap. The income tax calculator shows whether itemizing beats the standard deduction.
Frequently asked questions
What is the sales tax rate in South Dakota in 2026?
South Dakota’s state rate is 4.2% and the population-weighted average local rate is 1.91%, for a combined average of 6.11% as of July 1, 2026 (Tax Foundation). That ranks 36 of 51 (1 = highest). Local rates reach 4.5%, so check the rate for the exact address of the sale. At the average combined rate, a $100.00 taxable purchase costs $106.11.
How much is sales tax on $1,000 in South Dakota?
About $61.10 at the 6.11% combined average rate, for a total of $1,061.10. The state portion alone is $42.00; the rest depends on your city, county and district taxes. Multiply the price by 0.0611 to get the tax, or by 1.0611 to get the total.
How do I remove South Dakota sales tax from a total?
Divide the total by 1.0611 (1 plus the 6.11% combined rate). A $1,000 receipt total works out to $942.42 before tax and $57.58 of tax. Subtracting 6.11% of the total would give $938.90, which understates the price because the tax was charged on the smaller pre-tax amount.
How much is sales tax on a $25,000 car in South Dakota?
At the 6.11% general combined rate, $1,527.50, for a total of $26,527.50. Vehicles are often taxed under separate motor vehicle tax rules, at a different rate or on a price reduced by a trade-in, so confirm the amount with South Dakota’s motor vehicle or tax agency before you budget for it.
Are groceries taxed in South Dakota?
Yes. Groceries are taxed at the full state rate (4.2%) plus applicable municipal taxes. Prepared food, such as restaurant meals and hot deli items, is generally taxable, and items like candy, soft drinks and alcohol may be treated differently from groceries, so check with South Dakota’s tax agency for a specific product.
Is sales tax higher in South Dakota than in neighboring states?
2 of 6 neighbors have a lower average combined rate than South Dakota and 4 have a higher one; on a $1,000 purchase the tax ranges from $0.00 in Montana to $81.40 in Minnesota, versus $61.10 in South Dakota. These comparisons use each state’s combined state and average local rate. Crossing a border to save tax doesn’t always work: if a seller doesn’t collect your home state’s tax, you generally owe use tax at home.