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Free South Dakota Car Sales Tax Calculator

Work out the South Dakota car sales tax on a new or used car. South Dakota charges motor vehicle excise tax (4%). Your trade-in lowers the taxable price.

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$
Motor vehicle excise tax (4%).
More options: rebate, dealer fees, state rules
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$
Doc fees are taxable in many states. Leave at 0 if unsure.
Estimated tax
$1,200.00
Taxable amount$30,000.00
Tax$1,200.00
Total due (before title and registration)$31,200.00
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South Dakota car sales tax rules

  • Tax type: Motor vehicle excise tax (4%)
  • Rate used in the calculator: 4%
  • Local taxes: The 4% excise tax replaces state and city sales tax and is paid to the county treasurer.
  • Trade-in credit: Yes. The trade-in value is deducted.
  • Manufacturer rebates: Taxed: tax is figured on the price before the rebate.
  • Also note: Cars 11 or more model years old selling for $2,500 or less are exempt.

Tax on common car prices in South Dakota

PriceTaxTax with $5,000 trade-inPrice + tax
$10,000$400.00$200.00$10,400.00
$20,000$800.00$600.00$20,800.00
$30,000$1,200.00$1,000.00$31,200.00
$40,000$1,600.00$1,400.00$41,600.00
$50,000$2,000.00$1,800.00$52,000.00

At 4%.

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Other costs when you buy a car

On top of the tax, expect title, registration and plate fees, and a dealer documentation fee. Check whether the car fits your budget with the car affordability calculator, or compare with a lease.

Frequently asked questions

How much is sales tax on a car in South Dakota?

South Dakota charges motor vehicle excise tax (4%). Your trade-in lowers the taxable price.

How much tax will I pay on a $30,000 car in South Dakota?

About $1,200.00 at 4%, or $1,000.00 with a $5,000 trade-in. Title, registration and plate fees are extra.

Does a trade-in reduce car sales tax in South Dakota?

Yes. The trade-in value is deducted.

Do local taxes apply to cars in South Dakota?

The 4% excise tax replaces state and city sales tax and is paid to the county treasurer.

Sources

Rules last reviewed 2026-11-11. Estimates only; the dealer or your state motor vehicle agency calculates the final amount.

Other states

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