South Dakota sales tax calculator
South Dakota’s state sales tax rate is 4.200%.
- Type the price.
- Choose “Add sales tax” or “Remove sales tax”.
- See the tax and the total straight away.
- Total with tax
- $104.20
- sales tax (4.200%)
- $4.20
- Before tax
- $100.00
- After tax
- $104.20
South Dakota charges 4.200% state sales tax. Local governments may add their own rate on top, so the rate at the till can be higher.
South Dakota sales tax rate
| State | Rate |
|---|---|
| South Dakota | 4.200% |
sales tax on common amounts
| Price | sales 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 |
| $250.00 | $10.50 | $260.50 |
| $500.00 | $21.00 | $521.00 |
| $1,000.00 | $42.00 | $1,042.00 |
South Dakota paycheck calculator · All state sales tax rates
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Frequently asked questions
What is the sales tax rate in South Dakota?
The state rate is 4.200%. Local rates can be added on top.
How much is South Dakota sales tax on $100?
$4.20 at the state rate, so $100 costs $104.20 before any local tax.
Where our numbers come from
- SD Dept. of Revenue - Sales & Use Tax
- SD Dept. of Revenue - Municipal Tax
Rates checked against official sources on 2026-09-29.