Iowa Sales Tax Calculator
Estimate sales tax in Iowa at the average combined rate of 6.94%. Add tax to a price or back it out of a total.
Enter your combined state + local rate. U.S. sales tax rates vary by city and county.
Iowa sales tax rate
| State sales tax rate | 6% |
| Average local sales tax rate | 0.94% |
| Average combined rate | 6.94% |
Population-weighted averages as of July 1, 2025 (Tax Foundation). Your exact rate depends on your city and county.
How sales tax works in Iowa
Iowa charges a statewide rate of 6%. Counties and cities add their own rates on top, which is why the combined total varies by location. The 0.94% figure above is the population-weighted average. To add tax, multiply the price by the rate; to back it out of a tax-inclusive total, divide by 1 plus the rate.
Worked example
A $100 purchase at Iowa's average combined rate of 6.94% adds $6.94 in sales tax, for a $106.94 total.
Frequently asked questions
What is the sales tax rate in Iowa?
Iowa's statewide rate is 6%. With an average local rate of 0.94%, the typical combined rate is about 6.94%.
How much is sales tax on $100 in Iowa?
At the average combined rate of 6.94%, sales tax on a $100 purchase is about $6.94, for a total of $106.94. Your exact rate depends on your city and county.
Why is my local rate different?
Counties and cities in Iowa set their own add-on rates, so the total varies by location. 0.94% is the population-weighted average; enter your exact combined rate for a precise figure.
Sales tax by state
Or use the general sales tax calculator with any rate.