South Dakota Sales Tax Calculator
Calculate sales tax in South Dakota. 4.5% state rate + 1.9% average local tax = 6.4% combined rate. Free calculator with city-specific rates and exemption details.
Sales Tax Rates in Major South Dakota Cities
| City | Combined Rate |
|---|---|
| Sioux Falls | 6.5% |
| Rapid City | 6.5% |
| Aberdeen | 6.5% |
| Brookings | 6.5% |
Quick Reference — South Dakota at 6.4% Combined Rate
| Purchase | Tax | Total |
|---|---|---|
| $10.00 | $0.64 | $10.64 |
| $25.00 | $1.60 | $26.60 |
| $50.00 | $3.20 | $53.20 |
| $100.00 | $6.40 | $106.40 |
| $250.00 | $16.00 | $266.00 |
| $500.00 | $32.00 | $532.00 |
| $1,000.00 | $64.00 | $1064.00 |
| $5,000.00 | $320.00 | $5320.00 |
South Dakota Sales Tax Guide (2026)
South Dakota taxes groceries at the full rate. With no state income tax, sales tax is the primary revenue source. Municipal taxes can add up to 2%. Tourism-heavy areas like Deadwood have higher rates.
Tax Exemptions in South Dakota
- Groceries: Full rate
- Clothing: Taxed
- Prescription drugs: Exempt in South Dakota
How South Dakota Sales Tax Works
In South Dakota, the total sales tax you pay is the sum of the 4.5% state rate plus any local taxes imposed by your city or county. Local rates vary, with the average being 1.9% for a combined rate of 6.4%. The highest combined rate in South Dakota is 8.5% (some areas).
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Frequently Asked Questions
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Methodology, Assumptions, and Limitations
About this page: South Dakota Sales Tax Calculator — 6.4% Rate (2026) is designed to help visitors make faster, better-informed decisions without creating an account or giving up personal data.
This estimate uses current federal and/or state tax assumptions, common filing-status logic, and the inputs you enter. It does not reproduce your exact payroll system, year-to-date withholding history, or every local tax rule.
Worked example: Example: compare the same salary under two filing statuses or with different pre-tax deductions to see how withholding or after-tax cash flow changes.
Source References
Editorial Transparency
Last updated: March 9, 2026 · Author: CalcSharp Editorial Team · Reviewed by: CalcSharp Finance Review Desk
CalcSharp publishes free educational calculators and guides. We prioritize plain-English explanations, visible assumptions, and links to primary or official references wherever practical.