South-Dakota Sales Tax Calculator
Add or remove South-Dakota sales tax from a price, using the state rate plus the average local rate.
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About the South-Dakota Sales Tax Calculator
This South-Dakota sales tax calculator adds sales tax to a price or removes it from a total. It starts with the average combined South-Dakota rate of 6.11% (state rate 4.20% plus average local rate). Change the rate to match your city or county.
How to use it
- Enter a price or a total.
- Keep the average combined rate or type your local rate.
- Choose add or remove sales tax and press Calculate sales tax.
South-Dakota sales tax rate in 2026
The South-Dakota state sales tax rate is 4.20%. Local governments add an average of 1.91%, for an average combined rate of 6.11%. Your exact rate depends on your city and county, so check the South-Dakota department of revenue for your address.
Source: Tax Foundation, 2026 state and local sales tax rates (as of July 1, 2026).
South-Dakota sales tax examples at 6.11%
| Price | Sales tax | Total |
|---|---|---|
| $10 | $0.61 | $10.61 |
| $25 | $1.53 | $26.53 |
| $50 | $3.06 | $53.05 |
| $100 | $6.11 | $106.11 |
| $250 | $15.28 | $265.27 |
| $500 | $30.55 | $530.55 |
| $1,000 | $61.10 | $1,061.10 |
How to calculate sales tax
Sales tax = price × rate. To remove tax from a total, divide the total by (1 + rate). For example, $108 at 8% includes $8 of tax on a $100 price.
Frequently asked questions
What is the sales tax in South-Dakota?
The South-Dakota state rate is 4.20%. With average local taxes the combined rate is about 6.11%. Your actual rate depends on your location.
Does South-Dakota have local sales tax?
Yes, local governments can add taxes. The average local rate is about 1.91%.
How do I calculate sales tax in South-Dakota?
Multiply the price by the sales tax rate, then add it to the price. The calculator above does it for you.
What is $100 with sales tax in South-Dakota?
At the average combined rate of 6.11%, $100 costs $106.11.
Where can I find my exact South-Dakota rate?
Use the South-Dakota department of revenue rate lookup tool for your address.
Last reviewed: November 2026. Rates are averages. Confirm your local rate with the state department of revenue.