Iowa Car Sales Tax Calculator
This Iowa car sales tax calculator estimates the tax and fees on buying a vehicle. Iowa applies its state sales or use tax of 6% to a vehicle purchase, the same rate sourced from the Iowa Department of Revenue that applies to other taxable goods. Enter the vehicle price and your registration fee to see the state sales tax, fees and the total drive-away cost. Most counties and cities in Iowa add a local sales tax on top of the state rate, so your combined rate at purchase may be higher; use the Iowa sales tax calculator to find the local rate for your address. Registration and title fees are set by the Iowa DMV and depend on the vehicle's weight, type and your county, so they are entered by you rather than asserted here. Some states also let you subtract a trade-in before tax, while others tax the full price; the rule is set by the state, so enter the net price if Iowa allows a trade-in credit. Use this to budget for a car purchase and to compare the upfront tax across vehicles. The state rate is the official sourced figure; local rates and fees vary by location.
Iowa's state sales tax on a vehicle is 6%. On a $35,000 car that is $2,100.00 in state tax; with a $300 registration fee, the total is about $37,400.00.
How Iowa car sales tax is calculated
state sales tax = vehicle price x 6% (state rate) + any local sales tax
total = vehicle price + state sales tax + registration and title fees
Iowa car sales tax: frequently asked questions
How much is sales tax on a car in Iowa?
Iowa charges its state sales or use tax of 6% on a vehicle purchase. On a $35,000 car that is $2,100.00 in state tax. Many counties and cities add a local rate on top, so your combined rate may be higher; check the Iowa sales tax calculator for your locality.
Is the registration fee included?
Registration and title fees are set by the Iowa Department of Motor Vehicles and vary by vehicle weight, type and county, so they are a user-editable input here rather than an asserted figure. Enter your DMV's fee for an accurate total.
Does a trade-in reduce the sales tax in Iowa?
In many states the taxable amount is the price after a trade-in credit, but some states tax the full price. The rule is set by the Iowa Department of Revenue. This calculator applies the rate to the price you enter, so enter the net price if Iowa allows a trade-in credit.
Where does the Iowa car sales tax rate come from?
The state sales or use tax rate of 6% is sourced from the Iowa Department of Revenue, verified as at Jun 11, 2026. Local rates and DMV fees come from your county.
Official sources
- Iowa state sales/use tax rate (6%): Iowa Department of Revenue, as at Jun 11, 2026.
Reviewed by the CalculatorHub team, edited by James Graham, 26 June 2026. See our methodology. General information, not financial advice. Local sales taxes and DMV registration fees vary by location and are not asserted.