How to Appeal a Property Assessment in Allen County, Indiana
Last Updated: August 2026
If you believe your Allen County property assessment is too high or contains incorrect information, you have the right to appeal the assessment. Appeals begin with the Allen County Assessor and are filed using Indiana Form 130 – Taxpayer’s Notice to Initiate an Appeal.
Quick Answer
To challenge an Allen County property assessment, file Form 130 with the Allen County Assessor by the deadline shown for your assessment year.
View Allen County Property Assessment Appeals
Allen County Assessor: 260-449-7123
2026 Appeal Deadline
For the 2026 assessment year, Allen County mailed Form 11 assessment notices on April 24, 2026.
The deadline to appeal that assessment was:
June 15, 2026
If you’re researching an appeal after that date, contact the Assessor about your situation and watch for the deadline applicable to your next assessment notice.
Check Indiana Form 11 & Appeal Deadline Information
How to File an Appeal
Indiana property assessment appeals begin with Form 130 – Taxpayer’s Notice to Initiate an Appeal.
You’ll need to file a separate Form 130 for each parcel you’re appealing.
You can submit the completed form:
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In person
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By mail
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By email, subject to Allen County’s current filing rules
The appeal must be signed.
Where to File
Allen County Assessor – Appeals
Rousseau Centre, Suite 415
1 E. Main Street
Fort Wayne, IN 46802
Phone: 260-449-7123
Allen County Assessment Appeals
If mailing the appeal, Allen County asks that you include Attn: PTABOA Department.
Start by Checking Your Property Record
Before appealing, review the county’s information about your property.
Look for errors involving:
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Square footage
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Lot size
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Number of buildings
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Building type
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Condition
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Finished living area
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Basement information
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Garages or outbuildings
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Property classification
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Other property characteristics
An incorrect property record can directly affect your assessment.
Search Allen County Property Records
What Evidence Can Help?
Simply saying “my assessment is too high” usually isn’t the strongest argument.
Useful evidence can include:
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Recent sale of your property
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Sales of comparable properties
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Professional appraisal
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Photos showing property condition
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Estimates for significant repairs
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Incorrect information on the property record
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Listings or other market information
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Documentation supporting a different property value
Indiana does not require you to obtain a professional appraisal just to file an assessment appeal.
Comparable Properties
Comparable sales can be especially useful when challenging an assessment.
Look for properties that are reasonably similar in:
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Location
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Home size
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Lot size
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Age
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Construction
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Condition
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Features
A nearby home isn’t automatically a good comparable just because it sold for less.
Search Allen County Property & Comparable Information
What Happens After You Appeal?
After you file Form 130, the assessing official will schedule a preliminary informal meeting.
This gives you and the Assessor an opportunity to discuss:
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Your assessment
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Your evidence
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The Assessor’s information
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Possible errors
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Whether an agreement can be reached
Bring the information you’re relying on to support your requested value.
What If You Don’t Agree?
If the appeal isn’t resolved at the informal level, it can proceed to the Allen County Property Tax Assessment Board of Appeals (PTABOA).
The board reviews the assessment dispute and issues a determination.
Allen County PTABOA Information
If you still disagree after the county-level process, you may have the right to appeal to the Indiana Board of Tax Review.
Indiana Property Tax Assessment Appeals
Does Appealing Lower My Assessment?
Not automatically.
An appeal is a review of the assessment, not a guaranteed reduction.
The evidence may support:
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Lowering the assessment
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Leaving it unchanged
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Correcting factual information
Focus your appeal on why the assessed value or property information is incorrect.
Can My Assessment Increase?
An appeal opens the assessment for review.
Don’t assume filing an appeal can only result in a lower value. Before appealing, research your property’s market value and comparable properties so you have a reasonable basis for the value you’re requesting.
Do I Still Pay My Property Taxes?
Filing an assessment appeal doesn’t mean you should ignore your property tax bill.
Continue paying property taxes according to the normal due dates unless you’re specifically instructed otherwise by the appropriate county office.
An appeal concerns the property’s assessed value; it doesn’t automatically suspend your tax-payment obligations.
Before You Appeal
Before filing Form 130:
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Review your property record.
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Check for factual errors.
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Review your Form 11.
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Check the filing deadline.
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Research comparable properties.
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Gather photos and supporting documents.
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Decide what assessed value you believe is correct.
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Keep copies of everything you submit.
Local Tip
Start with your Allen County property record before filing an appeal. If the county has your home listed with incorrect square footage, features or structures, that’s specific information you can point to rather than simply arguing that your taxes are too high.
Also, pay close attention to the appeal deadline. Missing it can prevent you from challenging that year’s assessment.
Frequently Asked Questions
How do I appeal my Allen County property assessment?
File Indiana Form 130 with the Allen County Assessor.
What was the 2026 Allen County appeal deadline?
For the 2026 assessment notices mailed April 24, the deadline was June 15, 2026.
Do I need an appraisal?
No. Indiana doesn’t require a professional appraisal to file an assessment appeal.
What happens after I file?
The process generally begins with a preliminary informal meeting with the assessing official. If the issue isn’t resolved, the appeal can proceed to PTABOA.
Who do I call about an appeal?
Contact the Allen County Assessor at 260-449-7123.
Related Pages
Official Resources
Allen County Assessor – Appeals
Rousseau Centre, Suite 415
1 E. Main Street
Fort Wayne, IN 46802
Phone: 260-449-7123
Summary
Allen County property owners can challenge an assessment by filing Indiana Form 130 with the County Assessor. Strong appeals use specific evidence, such as comparable sales, property-record errors, photos or an appraisal. Appeals begin with an informal review and can proceed to PTABOA if an agreement isn’t reached. Most importantly, check the deadline for the assessment year you’re appealing before filing.