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Free Iowa Car Sales Tax Calculator

Work out the Iowa car sales tax on a new or used car. Iowa charges fee for new registration (5%) instead of sales tax. Your trade-in lowers the taxable price.

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Fee for new registration (5%) instead of sales tax.
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
$1,500.00
Taxable amount$30,000.00
Tax$1,500.00
Total due (before title and registration)$31,500.00
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Iowa car sales tax rules

  • Tax type: Fee for new registration (5%) instead of sales tax
  • Rate used in the calculator: 5%
  • Local taxes: No local tax is added; the 5% fee is collected by the county treasurer.
  • Trade-in credit: Yes, when you are on the title of the traded vehicle.
  • Manufacturer rebates: Not taxed: the rebate is subtracted before tax.
  • Also note: The fee is 5% of the price plus $10. A manufacturer rebate applied to the price is not taxed.

Tax on common car prices in Iowa

PriceTaxTax with $5,000 trade-inPrice + tax
$10,000$500.00$250.00$10,500.00
$20,000$1,000.00$750.00$21,000.00
$30,000$1,500.00$1,250.00$31,500.00
$40,000$2,000.00$1,750.00$42,000.00
$50,000$2,500.00$2,250.00$52,500.00

At 5%.

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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 Iowa?

Iowa charges fee for new registration (5%) instead of sales tax. Your trade-in lowers the taxable price.

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

About $1,500.00 at 5%, or $1,250.00 with a $5,000 trade-in. Title, registration and plate fees are extra.

Does a trade-in reduce car sales tax in Iowa?

Yes, when you are on the title of the traded vehicle.

Do local taxes apply to cars in Iowa?

No local tax is added; the 5% fee is collected by 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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