Iowa property tax appeals
Use our Iowa appeal guide and county filing facts now. Automated assessment checks are not open here yet, so tell us where you are and we will email you when they open.
Iowa assesses your home at market value and you protest to your local board of review between April 2 and April 30. The residential rollback caps statewide growth, not your individual home, so winning a protest still lowers your bill.
- Your assessed value is higher than what your home would actually sell for.
- The record has an error in your home's size, condition, or features.
- You file with your local board of review between April 2 and April 30.
- Your assessed value already matches what your home would sell for. A protest reviews your value, not your tax rate.
- You miss the April 30 window. The protest period is set by statute and closes for the year.
Read the full explanation
In Iowa, your assessor sets your home's assessed value at what it would sell for, and you protest that value to your local board of review between April 2 and April 30. After the assessed value is set, the state applies a residential rollback that decides how much of it is actually taxed. The rollback limits how fast the total taxable value of all Iowa homes grows statewide, not how fast your own home's value grows, so it does not blunt an appeal. Your assessed value is the starting point the rollback is applied to, which means winning a protest still lowers your bill. An appeal makes sense when your assessed value is higher than what your home would sell for, or when the record has an error. It will not help when your assessed value already matches the market and you simply disagree with the tax rate. This is general information, not tax advice.
Source: Iowa Legislature, Iowa Code 441.37 · checked 2026-07-19. We're publishing verified county filing facts as each review is completed. Automated assessment checks will follow our rollout schedule.
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