Home › Iowa › How-To Guide
Iowa · How-To Guide

How do I pay my property taxes?

County Treasurer (county level - each of Iowa's 99 counties)
Step by Step

How to do it

  1. Note: Iowa property taxes take 18 months from assessment to payment - an assessment made January 1, 2024 results in tax bills due in the fall of 2025 and spring of 2026
  2. Locate your tax statement: Iowa property tax statements are mailed by the County Treasurer in the fall (typically August/September)
  3. Review your statement for the correct amount, parcel number, and due dates
  4. Choose your payment method: in person at the County Treasurer's office, by mail, or online through your county's payment portal
  5. Pay by the semiannual due dates:
  6. FIRST INSTALLMENT: September 1 (delinquent after September 30)
  7. SECOND INSTALLMENT: March 1 (delinquent after March 31)
  8. Retain receipt as proof of payment
Details

What you need to know

Required Docs
  • Property tax statement or parcel number
  • Payment (cash, check, money order, or card - varies by county; online portals available for most counties)
Online Option
Most Iowa counties offer online payment through their county treasurer's website; also available through iowa.gov/how-do-i-pay-property-taxes for county links
Where to Go
County Treasurer's office (address in your v2 county data for each county)
County-specific variations apply

Online payment portals and accepted payment methods vary across Iowa's 99 counties. Polk County (Des Moines), Linn County (Cedar Rapids), Scott County (Davenport), Black Hawk County (Waterloo), Johnson County (Iowa City) have the most robust online payment systems. Starting June 1, 2026, some counties (e.g., Buchanan) require guaranteed funds (cash, cashier's check, or money order) for payments near the tax sale date. Verify with your specific county treasurer.

Iowa Notes

Important state-specific details

  • Iowa's 18-MONTH ASSESSMENT CYCLE is unique: assessment on January 1 of one year → tax bills due fall of the NEXT year and spring of the year after. This means taxes paid in 2025 cover the 2023 assessment year.
  • Iowa ROLLBACK: Iowa's most significant property tax feature - the state sets an annual "rollback" percentage limiting the portion of assessed value subject to taxation. For residential property, the rollback typically allows only 50-60% of assessed value to be taxed. This prevents large tax increases when property values rise.
  • KEY EXEMPTIONS (apply at County Assessor):
  • Homestead Tax Credit: reduces taxes on owner-occupied primary residences; apply once by July 1; auto-renews; applied as a credit
  • Elderly and Disabled Tax Credit: income under $23,810; age 65+ or disabled; apply at County Treasurer by June 1
  • Military Service Property Tax Exemption: $2,778 of assessed value exempt; apply by July 1
  • Family Farm Tax Credit: for qualifying agricultural land; apply by November 1
  • No state property tax in Iowa - all property taxes are local (county, city, school district, special districts).
Official Source

State office contact

State Office
Iowa Department of Revenue, Property Tax - revenue.iowa.gov/taxes/tax-guidance/property-tax | (515) 281-3114; County Treasurer (varies by county)