South Dakota state rate 4.2%
South Dakota sales tax calculator
South Dakota charges 4.2% at the state level — one of the lowest state rates in the country.
County, city and district taxes are set locally and are not looked up here. Leave this blank to see the South Dakota state rate on its own.
Total to pay
$4.20 of tax at 4.2%
- Price before tax
- $100.00
- South Dakota state tax
- $4.20
- Total
- $104.20
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How the rate is built
What South Dakota actually charges
- The Department of Revenue states the state sales and use tax rate is 4.2%.
- Municipalities may levy their own general sales tax on top of the state rate, so the rate at the till is higher inside most towns.
- South Dakota applies its sales tax to a wider list of services than most states, which is part of why the headline rate can stay low.
- South Dakota has no wage income tax.
At the state rate
4.2% on common amounts
| Price | Tax | Total |
|---|---|---|
| $10.00 | $0.42 | $10.42 |
| $25.00 | $1.05 | $26.05 |
| $50.00 | $2.10 | $52.10 |
| $100.00 | $4.20 | $104.20 |
| $500.00 | $21.00 | $521.00 |
| $1,000.00 | $42.00 | $1,042.00 |
State rate only, before any county, city or district tax. Your local rate is added on top of these figures.
Common questions
South Dakota sales tax, in plain terms
What is the sales tax rate in South Dakota?
The South Dakota state rate is 4.2%. Counties, cities and special districts add their own rate on top, so what you pay at the register is usually higher than the state rate alone.
How much is sales tax on $100 in South Dakota?
At the 4.2% state rate, $100 becomes $104.20 — $4.20 of tax. Add your local rate in the calculator above for the figure you will actually be charged.
How do I work out the tax that is already inside a total?
Switch the calculator to "Take tax out of a total" and enter the amount on the receipt. It divides by one plus the rate rather than subtracting the rate, which is the part people usually get wrong — taking 7% off a total is not the same as the total being 7% tax.
Does this include South Dakota city and county taxes?
Not automatically. Local rates are set by thousands of separate jurisdictions and change on their own schedules, so this calculator asks you for yours instead of guessing. Your receipt or your county revenue office has the exact figure.
Source for this rate
State rate last checked 2026-08-20. This calculator uses the state rate. County, city and special-district taxes are added on top of it in most places, and they are set locally — if you know your local rate, type it in and it is added to the state rate. Estimates only — not tax advice, and not affiliated with any state revenue department.