Think Your Ohio Property Is Overvalued? How to Challenge It and Potentially Lower Your Property Taxes

If your Ohio property’s value suddenly looks much higher than what you believe it could realistically sell for, you may be wondering: Can I call the county auditor and ask for a reduction?

Yes: you can contact the county auditor’s office, ask questions, and request an informal review if that option is available. If the issue cannot be resolved informally, Ohio homeowners may also have the right to file a formal complaint with the county’s Board of Revision.

The important thing is understanding what you are actually challenging, gathering credible evidence, and watching the filing deadline. Government paperwork may not be anyone’s idea of a fun afternoon, but a little preparation can make the process much less intimidating.

What Does “Overvalued” Mean?

Ohio county auditors determine property values for taxation purposes. That value is intended to reflect the property’s fair market value: the price the property might reasonably sell for under normal conditions.

A property may appear overvalued if:

The auditor’s records show incorrect square footage
The property is listed with features it does not have
The property condition is worse than the records or valuation suggest
Comparable properties have recently sold for less
The property experienced significant damage or deferred maintenance
A recent purchase price indicates a lower value
A finished basement, addition, garage, or other characteristic was recorded incorrectly

Remember, you are generally challenging the property’s appraised or assessed value, not the tax bill directly. Property taxes are calculated using the taxable value and applicable tax rates. If the value is reduced, your taxes may also be reduced: but a lower tax bill is not guaranteed.

Step 1: Review Your County Auditor’s Property Record

Start by looking up your property on your county auditor’s website. For homeowners in Columbus and throughout Franklin County, the Franklin County Auditor’s real estate resources are a good place to begin.

Review the property record carefully. Look for:

The current appraised value
Land and building values
Reported square footage
Number of bedrooms and bathrooms
Lot size
Year built
Garage, basement, or finished-area information
Recent improvements or additions
Property classification
Any notes about condition or special features

Do not assume every detail is correct simply because it appears in an official record. Computers are excellent at storing information: and occasionally excellent at storing the wrong information very confidently.

Write down the specific errors or concerns you find. It is much more helpful to say, “The record lists 2,400 finished square feet, but the property has 1,850,” than simply, “The value seems too high.”

Step 2: Contact the County Auditor’s Office

Before filing a formal complaint, contact the auditor’s office. Ask whether the county offers an informal value review, how to correct factual errors, and what documentation the office would like to see.

When you call or write, be prepared to provide:

The property address
Parcel or permanent parcel number
Your name and contact information
The value currently shown in the county record
The value you believe is more accurate
A brief explanation of why
Copies of any supporting documents

An informal review may resolve a straightforward data-entry error or clarify how the value was calculated. However, an informal conversation does not necessarily extend or replace the formal filing deadline. If you are considering a formal challenge, confirm the deadline even while the informal review is pending.

Step 3: Gather Evidence That Supports a Lower Value

The Board of Revision will generally want objective evidence: not just a homeowner’s understandable reaction to a larger-than-expected number.

Useful documentation may include:

Recent Comparable Sales

Comparable sales, often called “comps,” are recently sold properties that are similar to yours in location, size, age, condition, and features.

Strong comps are usually:

Located near your property
Similar in square footage and lot size
Similar in age and construction
Similar in bedroom and bathroom count
Similar in condition
Sold close to the applicable valuation date

Active listings can provide context, but completed sales are typically more persuasive because they show what buyers actually paid.

An Independent Appraisal

A professional appraisal can be valuable, particularly when the property has unusual features, significant repairs, or a recent change in condition.

Ask the appraiser about the report’s effective date and whether it addresses the valuation date relevant to your property tax complaint. An appraisal prepared for a different purpose or date may still be useful, but its relevance should be clear.

Purchase Agreement or Closing Statement

If you recently bought the property in an arm’s-length transaction, your purchase agreement, settlement statement, or closing disclosure may help demonstrate market value.

A recent sale does not automatically guarantee that the auditor will adopt the exact purchase price. However, it can be important evidence: especially when the transaction was open-market, voluntary, and not affected by unusual circumstances.

Photos and Repair Documentation

Photos can help show conditions that may not be obvious from an exterior review or basic property record. Consider documenting:

Roof damage
Foundation problems
Water intrusion or flooding
Structural concerns
Fire or storm damage
Outdated systems
Significant deferred maintenance
Functional problems
Unfinished or unusable areas

Include contractor estimates, inspection reports, insurance documents, invoices, or other records when available. A photo of a problem is helpful; a photo plus professional documentation is even better.

Documentation of Property Characteristics or Errors

If the auditor’s record contains incorrect information, gather documents that support the correction. Depending on the issue, this might include:

Building plans
Previous appraisal reports
Survey documents
Permits
Inspection reports
Measurements
Deeds or closing records
Contractor records

Step 4: File a Formal Board of Revision Complaint if Necessary

If the informal process does not resolve the issue, you may be able to file a formal complaint against the property valuation.

In Franklin County, the Board of Revision handles property valuation complaints. The formal process generally involves submitting Ohio’s complaint form, commonly known as Form DTE 1, to the county auditor.

The complaint typically asks you to identify:

The property and owner
The auditor’s current value
The value you believe is correct
The reason for the requested change
Supporting evidence

Complete every section carefully, sign the form as required, and confirm whether notarization or additional documentation is required. Filing an incomplete form, using the wrong process, or missing a required signature can cause unnecessary delays: or dismissal.

Ohio’s general formal complaint window is January 1 through March 31 for the applicable tax year. However, the exact deadline and filing procedure can depend on the county and the tax year involved. Always verify the current requirements directly with your county auditor.

For Franklin County homeowners, begin with the Franklin County Auditor’s Board of Revision page. You can also review general information from the Ohio Department of Taxation.

Step 5: Prepare for the Hearing

After a formal complaint is filed, the Board of Revision may schedule a hearing. You should receive information about the date, time, and procedures.

At the hearing, you may be asked to explain:

Why the auditor’s value is inaccurate
What value you believe is correct
How your evidence supports that value
Whether the property has unique defects or characteristics
Whether the comparable properties are truly similar

Keep your presentation organized and focused. A simple packet with a written explanation, comparable sales, appraisal, photos, and supporting documents can be easier to follow than a large stack of papers handed over without context.

The Board of Revision may reduce the value, leave it unchanged, or: depending on the circumstances: determine that a higher value is appropriate. That is one reason to use realistic, well-supported evidence rather than choosing an arbitrary number.

What Happens to Your Property Tax Bill?

Property tax bills are collected in arrears. That means a decision about a prior valuation may affect taxes that have already been billed or paid, depending on the timing of the decision and local procedures.

If your valuation is reduced, the county may recalculate the taxes associated with that value. Whether you receive a refund, credit, or adjustment depends on the final decision and your tax-payment records.

If your mortgage payment includes an escrow account, your loan servicer: not the county auditor: usually manages the escrow funds used for property taxes. A change in property taxes may affect future escrow calculations, but the timing and handling of any adjustment can vary. If you have questions about your mortgage payment or escrow account, contact your loan servicer.

And if a lower tax bill changes your broader homeownership plans, Affinity Group Mortgage is an expert at finding the right loan for you, whether you are considering a purchase, refinance, or another financing goal.

Ohio Property Tax Challenge Checklist

Use this checklist to stay organized:

Look up your property on the county auditor’s website.
Review the appraised value and property characteristics.
Identify factual errors or condition issues.
Contact the county auditor’s office.
Ask whether an informal value review is available.
Confirm the formal Board of Revision deadline.
Research recent comparable sales.
Obtain an independent appraisal if appropriate.
Gather your purchase agreement or closing statement.
Take photos of significant defects or needed repairs.
Collect inspection reports, estimates, permits, and other records.
Complete the required complaint form accurately.
Confirm signature, notarization, and submission requirements.
Submit the complaint on time.
Prepare for the hearing.
Keep copies of everything you submit.

Frequently Asked Questions

Can I just call the county auditor to lower my property taxes?

You can call the auditor’s office to ask questions, report factual errors, and request an informal review if available. However, a formal reduction may require filing a complaint with the county Board of Revision.

Does the appeal challenge my tax bill?

No. The appeal generally challenges the property’s appraised or assessed value. If the value is reduced, the tax bill may also decrease, but the result is not guaranteed.

What is the Ohio property tax appeal deadline?

Ohio’s general formal complaint window is January 1 through March 31 for the applicable tax year. Confirm the exact deadline and filing process with your county auditor.

What evidence is most helpful?

Recent comparable sales, an independent appraisal, a purchase agreement or closing statement, photos of significant property problems, and documentation showing errors in the county record can all be useful.

What if I disagree with the Board of Revision’s decision?

Ohio provides additional appeal options in certain circumstances. Because those procedures and deadlines can be technical, contact the county auditor or a qualified attorney for guidance about your situation.

Final Thoughts

If your Ohio property appears overvalued, do not ignore it: and do not wait until the deadline is breathing down your neck.

Start by reviewing the county record, contact the auditor’s office, and ask what informal options may be available. If needed, prepare a timely Board of Revision complaint supported by specific, credible evidence.

For homeowners in Columbus, Franklin County, and across Ohio, the goal is not simply to argue that the number feels unfair. The goal is to show, with documentation, why another value more accurately reflects the property’s true market value.

Disclaimer: This article provides general educational information and is not legal, tax, or financial advice. Property valuation procedures, deadlines, filing requirements, and tax adjustments can vary. Contact your county auditor or a qualified tax professional, attorney, or appraiser for guidance regarding your specific situation.