How to Appeal a Property Assessment in Hamilton County

Last Updated: August 2026

If you believe your Hamilton County property is assessed too high or the county has incorrect information about your property, you can appeal the assessment through the Hamilton County Assessor’s Office.

Appeals begin with Form 130 – Taxpayer’s Notice to Initiate an Appeal.

Quick Answer

Hamilton County property assessment appeals can be filed:

Online
By mail
In person at the Assessor’s Office

For the January 1, 2026 assessment, Hamilton County mailed Form 11 notices by April 30, 2026, and the appeal deadline was June 15, 2026.

Deadlines vary depending on when assessment notices are issued, so always check the current deadline before filing.

Hamilton County Assessment Appeal Process

→ View Property Assessments

Start With Your Property Record

Before filing an appeal, review your Property Record Card.

Look for errors involving:

Square footage
Lot size
Garages or outbuildings
Finished living area
Construction type
Property improvements

A factual error in the property description may be grounds for an appeal.

→ View Property Records

Gather Evidence

Your appeal should explain why the assessed value is incorrect, rather than simply stating that your property taxes are too high.

Helpful evidence can include:

Recent sale price of your property
Sales of comparable properties
An appraisal
Construction costs
Incorrect information on the Property Record Card
Other information supporting the property’s value

A professional appraisal is not required to file an appeal.

File Form 130

Indiana uses Form 130 – Taxpayer’s Notice to Initiate an Appeal to begin the property assessment appeal process.

Include your property information and explain the specific reason you believe the assessment is incorrect.

Hamilton County accepts appeals online, by mail or in person.

File a Hamilton County Property Assessment Appeal

Hamilton County Assessor’s Office

33 N. 9th Street, Suite 214
Noblesville, IN 46060

Phone: 317-776-9617
Hours: Monday–Friday, 8:00 a.m.–4:30 p.m.

→ View Assessor Information

What Happens After You File?

After you file, the assessing official generally begins with a preliminary informal meeting or communication with you.

This gives you and the Assessor an opportunity to review the information and potentially resolve the disagreement.

If the issue isn’t resolved, the appeal can proceed to the Hamilton County Property Tax Assessment Board of Appeals (PTABOA).

If you disagree with the PTABOA’s final determination, you can appeal to the Indiana Board of Tax Review using Form 131. Hamilton County says this generally must be filed within 45 days after the Form 115 final determination is mailed.

Indiana Property Tax Assessment Appeals

Local Tips

Review your Property Record Card before filing.
Compare your home with genuinely similar properties.
Focus on the property’s value, not just the amount of your tax bill.
Include evidence that supports the value you’re requesting.
Keep copies of everything you submit.
Pay close attention to the filing deadline.

Frequently Asked Questions

What form do I use?

Use Form 130 – Taxpayer’s Notice to Initiate an Appeal.

Do I need an attorney?

No. Property owners can file their own assessment appeals.

Do I need an appraisal?

No. An appraisal can be useful evidence, but it isn’t required.

Can I file online?

Yes. Hamilton County provides an online submission option through its assessment appeal page.

What if my Property Record Card is wrong?

Incorrect property information can be part of an appeal. Start by reviewing your record and documenting the error.

→ View Property Records

→ Property Assessments

→ Property Records

→ Assessor Information

→ Tax Lookup

→ Property & Taxes

Official Resources

Hamilton County Assessment Appeal Process
Forms, filing options, deadlines and local appeal instructions.

Hamilton County Assessment Appeals

Indiana Department of Local Government Finance
State rules, forms and information about assessment appeals.