SOUTH DAKOTA CAR SALES TAX · 2026
South Dakota car sales tax calculator
South Dakota charges 4% motor vehicle excise tax on a car's price less any trade-in. On a $35,000 car with a $10,000 trade-in, bought from a dealer, the tax is $1,000.00.
Tax on this purchase
- Tax due
- $1,000.00
- Excise tax
- $1,000.00
- Taxed amount
- $25,000.00
- Trade-in subtracted
- $10,000.00
South Dakota car sales tax by price
A new car from a dealer.
| Price | No trade-in | $10,000 trade-in |
|---|---|---|
| $20,000 | $800.00 | $400.00 |
| $35,000 | $1,400.00 | $1,000.00 |
| $50,000 | $2,000.00 | $1,600.00 |
| $75,000 | $3,000.00 | $2,600.00 |
South Dakota car sales tax questions
How much is car sales tax in South Dakota?
South Dakota charges 4% motor vehicle excise tax on a car's price less any trade-in. On a $35,000 car with a $10,000 trade-in, bought from a dealer, the tax is $1,000.00.
Does a trade-in lower South Dakota's car sales tax?
Yes. South Dakota taxes the price less the trade-in. A $10,000 trade-in on a $35,000 car from a dealer saves $400.00.
Is a manufacturer rebate taxed in South Dakota?
Yes. South Dakota taxes the price before a manufacturer rebate, so a $2,000 rebate does not lower the tax.
Is a private car sale taxed in South Dakota?
Yes. South Dakota taxes a private sale at the same rate, and a trade-in still counts.
What the calculator leaves out
- This site has not confirmed whether local tax applies to vehicles in South Dakota, so the calculator includes none.
Title, registration and plate fees, dealer fees, and any yearly tax on owning the vehicle are not included.