Sioux City, Iowa Sales Tax Calculator (2026)
7.00% total combined rate — includes state and local taxes.
Sioux City businesses collect a total of 7%, combining Iowa’s 6% state rate with a 1% local surtax.
Sioux City Sales Tax Calculator
Enter a purchase amount — we’ll calculate the total with Sioux City’s tax rate.
Rate
7.00%
Tax
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Total
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The current combined rate for Sioux City is 7.00%.
Sioux City Sales Tax Breakdown
- State Rate: 6.00%
- City Rate: 1.00%
- County Rate: 0.00%
- Special Rate: 0.00%
- Total: 7.00%
About Sioux City
As a major river city, Sioux City applies local option sales taxes to maintain roads and fund public works.