Iowa Property Tax 2026: Rollback, Homestead Credit and Senior Exemption

Iowa's property tax system is shaped by two distinctive features: the statewide "rollback" factor that reduces residential taxable value annually, and a stack of credits (Homestead, Senior, Military) that layer on top. This 2026 guide explains how it all works together, the new Senior Homestead Exemption effective 2024+, and the July 1 application deadlines.

~54.6%

is the approximate 2026 residential rollback factor in Iowa — the percentage of assessed value that becomes taxable. The rollback is calculated annually by the Iowa Department of Revenue to comply with statutory limits on statewide residential tax growth.

$6,500

is the Senior Homestead Exemption introduced for assessment years beginning on or after January 1, 2024. Applies to homeowners age 65+ in addition to the existing Homestead Tax Credit.

How Iowa Property Tax Works

Iowa property tax is administered by 99 county assessors plus 9 separate city assessors (Des Moines, Cedar Rapids, Davenport, and others). The Iowa Department of Revenue oversees uniform standards.

The tax calculation

Annual tax = Assessed value × Rollback factor × (Combined rate per $1,000 ÷ 1,000) − Credits

Example: $300,000 Polk County (Des Moines) home. Apply ~54.6% rollback = $163,800 taxable value. Combined rate approximately $32 per $1,000 = $5,242 gross tax. Less Homestead Credit (levy rate × $4,850 taxable value) = approximately $5,087 net tax.

The rollback mechanism

Iowa's "rollback" limits statewide residential property tax growth to 3% per year. If statewide assessed values rise more than 3%, a rollback factor reduces the taxable portion. In recent high-appreciation years, residential rollback dropped below 55%, significantly reducing homeowner tax burdens.

Homestead Tax Credit and Senior Exemption

Homestead Tax Credit

The Homestead Tax Credit applies to all Iowa primary residences. Calculated as: levy rate times $4,850 of taxable value. At a typical Iowa combined levy of $30 per $1,000, this equals approximately $145 per year in tax savings.

Eligibility

Senior Homestead Exemption (NEW 2024+)

For assessment years beginning on or after January 1, 2024, Iowa added a Senior Homestead Exemption for homeowners age 65+ — $6,500 of taxable value is exempt. Stacks with the standard Homestead Tax Credit.

Application

One-time filing for both benefits with the county assessor using Form 54-028. Continues automatically. If you turn 65 after initial filing, notify the assessor to activate the Senior Exemption.

Senior and Disabled Property Tax Credit

Separate from the Homestead benefits, Iowa offers a means-tested Senior and Disabled Property Tax Credit funded by the state.

Eligibility for 2026 (based on 2025 assessment)

Application deadlines

Military Credit and Disabled Veteran Credit

Military Credit

A $1,852 reduction in taxable value for Iowa honorably-discharged veterans (wartime or peacetime). Varies by century of service (WWI, WWII, Korea, Vietnam, Gulf War, etc.). Small benefit (~$50-$80/year savings) but automatic once applied.

Disabled Veteran Tax Credit

For veterans with 100% service-connected disability rating (or permanent total disability based on individual unemployability at 100% rate). Eliminates all property tax on the homestead. Requirements:

Surviving spouse qualification

Surviving spouses of qualifying disabled veterans (not remarried) maintain the credit while continuing to occupy the homestead.

Appealing Your Assessment

Iowa appeals go through the county or city Board of Review and the Iowa Property Assessment Appeal Board (PAAB).

Step 1: Informal review

Contact the local assessor after receiving the assessment notice in reassessment years.

Step 2: Local Board of Review

File written protest with the local Board of Review by April 30 (or adjusted date). Present evidence at hearing scheduled in May.

Step 3: Iowa PAAB or District Court

Appeal from Board of Review either to the Iowa Property Assessment Appeal Board (state agency, informal) or district court. Either must be filed by the statutory deadline (typically 20 days after BOR decision).

Payment Schedule

Iowa property tax for the fiscal year July 1 - June 30 is billed in two installments:

Delinquent tax accrues 1.5% monthly interest. After extended delinquency, the county treasurer sells the tax lien at annual tax sale; property owner has 1-year redemption period.

Frequently Asked Questions

What is the Iowa rollback?

The rollback is a statewide residential taxable-value adjustment that limits residential property tax growth to 3% per year. For 2026, the residential rollback is approximately 54.6%, meaning only that percentage of assessed value becomes taxable. Adjusted annually by the Iowa Department of Revenue.

What is Iowa's senior homestead exemption?

Starting with assessment years beginning January 1, 2024, Iowa added a $6,500 Senior Homestead Exemption for homeowners age 65+. Stacks on top of the standard Homestead Tax Credit (which is calculated as levy rate times $4,850 of value). File once with the county assessor; continues automatically.

Who qualifies for Iowa's Senior and Disabled Property Tax Credit?

Iowa residents age 65+ by December 31 of the assessment year with household income under $26,895 (lower threshold), or age 18+ and totally disabled with the same income limit, or age 70+ with income up to 250% of federal poverty level (higher threshold). Apply by June 1 to the county treasurer for placement on the tax bill, or through March 31 of the following year.

Are disabled veterans exempt from Iowa property tax?

Yes. Veterans with 100% service-connected disability rating (or permanent total disability on individual unemployability at 100% rate) qualify for a credit that eliminates all property tax on the homestead. Surviving spouses (not remarried) maintain the credit while continuing to occupy the homestead. File by July 1 annually.

When is the Iowa property tax appeal deadline?

File written protest with the local Board of Review by April 30 of the assessment year (or adjusted date). If dissatisfied, appeal within 20 days to the Iowa Property Assessment Appeal Board (PAAB) or district court.

Your County's Effective Property Tax Rate

See 2026 effective rate, median tax, and appeal deadline for every Iowa county.

Browse Iowa Counties →
Sources & References

Iowa Department of Revenue — Tax Credits and Exemptions · Iowa DOR — Homestead Tax Credit and Exemption · Polk County — Property Tax Relief · Iowa State Association of Assessors — Credits and Exemptions · Iowa Property Assessment Appeal Board · Iowa Code Chapter 425 (Homestead Tax Credit). Rates, exemption amounts and filing deadlines cited are based on 2025-2026 legislative sessions and official state/county publications verified 2026-04-21; verify with your assessor before filing. This article is for informational purposes and is not tax or legal advice.