Sales Tax Calculator — South Dakota
Calculate sales tax in South Dakota at the 4.2% state rate (prefilled). Local city and county taxes may add on top, so your total rate can be higher.
Your details
Total with tax
$104.20
- Sales tax
- $4.20
- Amount before tax
- $100.00
Net vs tax
- Net
- $100.0096%
- Tax
- $4.204%
Total with tax$104.20
Sources & methodology
Uses South Dakota's state-level sales tax rate (4.2%). Rate is the Tax Foundation 2025 state sales tax rate, verified 2026-07-20; local city/county taxes may add on top. Applies the rate you enter. Actual sales tax rates vary by US state and locality.
- •Tax Foundation — 2025 state sales tax rates — Tax Foundation
- •Sales tax rates vary by state and locality — USA.gov
Estimates for informational purposes only — not tax or financial advice. Local rates vary. Last updated: 2026-07-19
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