Assessment Ratio
100% (trending market value)
Appeal Deadline
June 15, 2026 or 45 days from notice
Official Form
Form 130 (Petition for Review)
Risk of Increase
Yes
How Assessment Works in Indiana
Indiana assesses property at 100% of market value-in-use, using a "trending" methodology that adjusts values based on local sales data. Your assessed value should reflect what your home would sell for, adjusted for the assessment date.
Risk of Increase
In Indiana, filing a appeal can result in your assessed value being increased. This is uncommon when you have strong evidence of over-assessment, but you should be aware of this possibility. ProtestMax only recommends filing when our analysis shows a clear case for reduction.
How to File in Indiana
File Form 130 with your county assessor by June 15 or within 45 days of the assessment notice, whichever is later. Some counties accept online filings.
Step-by-Step
Indiana Appeal Process
Receive your assessment notice (Form 11) from the county assessor.
File Form 130 (Petition for Review of Assessment) with the county assessor.
Attend the informal conference with the assessor.
If unresolved, your case goes to the county Property Tax Assessment Board of Appeals (PTABOA).
If denied, appeal to the Indiana Board of Tax Review within 45 days.
FAQ
Indiana Property Tax Appeal Questions
What is "trending" in Indiana assessments?
Trending is Indiana's method of adjusting assessed values annually based on local sales data. The county assessor applies a factor to property values in each neighborhood to keep assessments in line with market conditions.
Can my Indiana assessment increase on appeal?
Yes. The PTABOA or Board of Tax Review can increase your assessment. However, this is uncommon when you present strong comparable sales evidence showing over-assessment.
What is Form 130?
Form 130 is Indiana's official Petition for Review of Assessment. It is the form you file with the county assessor to initiate a property tax appeal. ProtestMax generates this form pre-filled with your property details.
What is the effective property tax rate in Indiana?
Indiana property tax rates vary by county, municipality, and school district, but the effective rate (annual tax paid divided by market value) typically ranges from about 0.5% to 2.5%. Because Indiana assesses property at 100% (trending market value) of market value, your actual tax bill depends on both the assessed value and the local millage or mill levy applied on top of it. If your assessed value is higher than comparable sales support, filing a appeal is one of the only ways to reduce your effective rate without waiting for a reassessment.
How long does a property tax appeal take in Indiana?
Most Indiana appeals take between 6 weeks and 6 months from filing to final decision. After you file Form 130 (Petition for Review), the assessor or review board schedules a hearing — typically within 30 to 90 days — and issues a written decision shortly after. Cases that settle informally resolve faster, while cases that advance to a formal hearing or court appeal can take several additional months. ProtestMax prepares your full evidence packet in minutes so you can file immediately and start the clock.
Can I appeal my property taxes every year in Indiana?
Yes. In Indiana, homeowners generally have the right to appeal their property tax assessment every year, as long as you file by the June 15, 2026 or 45 days from notice deadline. Even if you won a reduction last year, your assessor can revalue your property the following year, and you retain the right to challenge the new value. Annual appeals are especially important during years when market values are flat or falling but assessments keep rising.
What evidence is most persuasive in Indiana hearings?
The strongest evidence in a Indiana appeal hearing is recent comparable sales — homes similar to yours in size, age, condition, and location that sold for less than your assessed value within the last 6 to 12 months. Equity comparisons (similar homes assessed for less than yours) are also highly persuasive. Photos of deferred maintenance, structural issues, or negative location factors (busy roads, flood zones, power lines) strengthen your case further. ProtestMax assembles all of this evidence into a hearing-ready packet tailored to Indiana's rules.