$
%
Sales Tax
$6
6.11%
Effective Rate
Total Price
$106
State Tax
$4
Local Tax
$2
Summary
A $100 purchase in South Dakota incurs $6 in sales tax (6.11% combined rate), for a total of $106.
South Dakota's combined 6.11% average rate (4.20% state + 1.91% avg local) ranks #35 nationally.
If you buy online from out-of-state sellers, South Dakota's use tax of 4.20% applies to untaxed purchases.
State Tax (4.20%): $4
Local Tax (1.91%): $2
Tax Calculation Breakdown
5 rows
| Step | Amount |
|---|---|
| Purchase Amount | $100 |
| + State Tax (4.20%) | $4 |
| + Local Tax (1.91%) | $2 |
| = Total Sales Tax | $6 |
| = Total Price | $106 |
Sales tax rates are based on 2025 data from the Tax Foundation. Local rates shown are statewide averages — actual rates vary by jurisdiction. Use the local rate field to enter your specific rate. Not tax advice.