AppealDesk

Marion County Property Tax Appeal, Ohio

Travis BunnTravis Bunn·Updated July 25, 2026

Marion County is located in north-central Ohio with Marion as the county seat. The county has a population of approximately 65,353 and is known for its agricultural heritage and as the hometown of President Warren G. Harding. With a median home value of $98,500 and an effective property tax rate of 1.24%, Marion County homeowners pay significantly less than both state and national averages. Property tax appeals are important here because even modest assessment errors can lead to overpayment, and the county's lower home values mean every dollar saved has meaningful impact for families and retirees.

Notable cities: Marion, Prospect, Caledonia

Median Home

$98,500

Tax Rate

1.24%

Annual Tax

$1,225

Population

65,353

On the typical Marion County home, valued near $98,500 at the county’s effective tax rate of 1.24%, an over-assessment of even 10% means you are overpaying year after year until you appeal it. Here is how to find out if yours qualifies.

2026 Appeal Deadline: March 31, 2026

This year's appeal window has passed in most of Ohio. Order now and we re-run your numbers free when the window reopens, so your evidence is ready the day your next notice lands.

All property valuation complaints must be filed between January 1 and March 31 of the year following the tax year in question. For Tax Year 2025 (payable in 2026), the filing window is January 1, 2026 through March 31, 2026. The deadline is strict with no extensions. Mailed complaints must be received by March 31 unless postmarked on or before March 31.

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Ohio residential street of family homes. Marion County appeal guide.

How Marion County Assesses Property

35%of market value

Assessed by: Marion County Auditor's Office

Assessment cycle: triennial

Notices typically mailed: Spring (mid-May)

Ohio law requires all property to be assessed at 35% of its market value. The market value is what your home would sell for on the open market, while the assessed value is the amount used to calculate your property taxes. For example, if your home's market value is $98,500 (the county median), your assessed value would be $34,475 (35% of $98,500). At Marion County's effective tax rate of 1.24%, this would result in approximately $1,225 in annual property taxes.

The Appeal Process

Appeals are heard by the Board of Revision. The Marion County Board of Revision consists of the County Auditor, County Treasurer, and a County Commissioner. Hearings are administrative proceedings, not court trials, and follow a less formal process where you present evidence and the board members may ask questions about your property's condition and valuation.

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Step 1: Request an informal review with the Marion County Auditor's Office before filing a formal complaint. This optional step can sometimes resolve valuation disputes without a formal hearing.

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Step 2: Gather evidence including recent comparable home sales in your neighborhood, photographs showing property condition or defects, repair estimates for needed work, a recent independent appraisal, and your property record card from the Auditor's office.

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Step 3: Complete DTE Form 1 (Complaint Against Value) and file it with the Marion County Board of Revision through the online portal, by mail, or in person between January 1 and March 31, 2026. Include all supporting documentation with your initial filing.

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Step 4: Attend your Board of Revision hearing when scheduled. The hearing is typically brief (5-15 minutes) and relatively informal. Present your evidence clearly and be prepared to answer questions about your property's value from board members.

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Step 5: Receive the Board of Revision's written decision by mail. If you disagree with the decision, you have 30 days from the decision date to appeal to the Ohio Board of Tax Appeals (BTA) by filing DTE Form 4.

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Step 6: If necessary, appeal the BTA decision to the Court of Common Pleas or Court of Appeals for final resolution. Most cases are resolved at the Board of Revision level without needing state-level appeals.

Required form: DTE Form 1 (Complaint Against Value)

Filing Methods

online:Board of Revision Portal available at https://www.co.marion.oh.us/auditor/ (click Board of Revision Portal link)
mail:Marion County Auditor, Attn: Board of Revision, 222 W. Center Street, Suite 1031, Marion, OH 43302
in-person:Marion County Auditor's Office, 222 W. Center Street, Suite 1031, Marion, OH 43302

Evidence to Bring

Recent comparable sales (past 6-12 months) of similar properties in your areaIndependent appraisal conducted by a licensed appraiserPhotographs documenting property condition, defects, or needed repairsRepair estimates or contractor quotes for significant issuesProperty record card from the Auditor showing assessment detailsDocumentation of factors reducing value (flood zone, traffic, zoning changes)

Marion County Assessor Contact

Marion County Auditor's Office

Phone: (740) 223-4020

Address: 222 W. Center Street, Suite 1031, Marion, OH 43302

Website: https://www.co.marion.oh.us/elected_offices/auditor/

Online Portal: https://propertysearch.marioncountyohio.gov/

Hours: Monday-Friday 8:30 AM - 4:30 PM

Tax Exemptions in Marion County

Homestead Exemption (Senior/Disabled)

$29,000 reduction in market value for tax year 2025 (payable 2026)

Reduces the taxable value of your home for qualifying senior citizens (age 65+), permanently disabled persons, and surviving spouses.

Eligibility: Must be 65 or older, permanently disabled, or surviving spouse age 59+. Must own and occupy the home as principal residence on January 1. Modified adjusted gross income (MAGI) must be less than $41,000 for 2026. A $100,000 home would be taxed as if valued at $71,000.Deadline: December 31 annually

Disabled Veteran Exemption (100% Service-Connected)

$56,000 reduction in market value for tax year 2025 (payable 2026)

Provides enhanced reduction for veterans with 100% service-connected disability rating.

Eligibility: Must be a veteran with 100% service-connected disability rating from the VA. Must own and occupy the home as principal residence. No income limit applies to this exemption.Deadline: December 31 annually

Owner Occupancy Credit

Up to 2.5% reduction on qualified levies

Automatic reduction for homeowners who occupy their property as their principal residence.

Eligibility: Must own and occupy the home as principal residence on January 1. Only one home per married couple qualifies. This determines voting registration and income tax residency.Deadline: File application with County Auditor if not currently receiving

Surviving Spouse of Public Service Officer

Varies by property value

Exemption for surviving spouses of public service officers killed in the line of duty.

Eligibility: Spouse of fire service professional, police officer, or reserve officer killed in line of duty. Must provide written confirmation from employer or retirement board. Must own and occupy as principal residence.Deadline: December 31 annually

Marion County Appeal Packet · $49

Comparable sales evidence, county-specific filing guide, and professional cover letter. Enter your address to get started.

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Frequently Asked Questions

What is the deadline to appeal my property taxes in Marion County for 2026?
The deadline to file a property tax appeal in Marion County is March 31, 2026. Appeals must be filed with the Board of Revision between January 1 and March 31 of the year following the tax year being appealed. This deadline is strict and set by Ohio Revised Code 5715.19, with no extensions permitted. If you mail your appeal, it must be received by March 31 or postmarked on or before that date. Missing this deadline means you must wait until the next year's filing window to appeal your assessment.
How do I file a property tax appeal online in Marion County?
Marion County offers an online Board of Revision Portal for filing property tax appeals. You can access the portal through the Marion County Auditor's website at www.co.marion.oh.us/auditor/ and click on the Board of Revision Portal link. You'll need to complete DTE Form 1 (Complaint Against Value) and upload your supporting documentation, including comparable sales, photographs, and appraisals. The online system is available during the January 1 through March 31 filing period. You can also file by mail or in person at the Auditor's office located at 222 W. Center Street, Suite 1031, Marion, OH 43302.
How much is the homestead exemption worth in Marion County?
The homestead exemption in Marion County reduces your property's market value by $29,000 for tax year 2025 (payable in 2026). For example, if your home is valued at $100,000, it would be taxed as if it were worth only $71,000, saving you approximately $360 annually at the county's 1.24% effective tax rate. To qualify, you must be age 65 or older, permanently disabled, or a qualifying surviving spouse, and your modified adjusted gross income must be less than $41,000. Disabled veterans with 100% service-connected disability receive an even larger $56,000 reduction with no income limit. Applications must be filed with the Marion County Auditor by December 31.
What evidence do I need to win my property tax appeal in Marion County?
The strongest evidence for a Marion County property tax appeal includes recent comparable sales of similar homes in your neighborhood sold within the past 6-12 months. You should also provide a professional independent appraisal if available, photographs documenting your property's condition or defects, and repair estimates for any significant issues affecting value. Request your property record card from the Marion County Auditor to verify the assessment details are correct. If you recently purchased your home for less than the assessed value, bring your closing statement as this is often considered highly persuasive evidence. The Board of Revision wants to see objective, factual data that demonstrates your home's market value is lower than the county's valuation.
Can I request an informal review before filing a formal appeal in Marion County?
Yes, Marion County allows property owners to request an informal review with the Auditor's office before filing a formal Board of Revision complaint. This optional step can sometimes resolve valuation disputes quickly without needing a formal hearing. Contact the Marion County Auditor's Real Estate Department at (740) 223-4020 to discuss your concerns and provide evidence supporting a lower value. If the informal review doesn't resolve your dispute, you still have the right to file a formal DTE Form 1 complaint with the Board of Revision between January 1 and March 31. Many property owners find the informal review helpful for understanding their assessment and potentially avoiding the formal appeal process altogether.
How does Ohio's 35% assessment ratio affect my Marion County property taxes?
Ohio law requires all real property to be assessed at exactly 35% of its true market value, and Marion County follows this state mandate. This means if your home's market value is $98,500 (the county median), your assessed value for tax purposes would be $34,475 (35% of market value). Your property tax bill is calculated by multiplying this assessed value by the local tax rate, which varies by school district and municipality. When you appeal your property taxes in Marion County, you're actually challenging the market value determination, which in turn affects the assessed value. Understanding this ratio is crucial because a $10,000 reduction in market value translates to approximately $43 in annual tax savings at the county's 1.24% effective rate.
What happens after I file my appeal with the Marion County Board of Revision?
After you file your DTE Form 1 complaint with the Marion County Board of Revision, the board will schedule a hearing where you can present your evidence. The Board of Revision consists of the County Auditor, County Treasurer, and a County Commissioner who will review your case. Hearings are typically brief (5-15 minutes) and less formal than court proceedings. You'll have the opportunity to present your comparable sales, appraisals, photographs, and other evidence supporting a lower valuation. The board will issue a written decision by mail, usually within several weeks. If you disagree with the Board of Revision's decision, you have 30 days to appeal to the Ohio Board of Tax Appeals by filing DTE Form 4.
When does Marion County mail property assessment notices?
Marion County typically mails property assessment notices in the spring, with most notices reaching homeowners by mid-May each year. These notices contain both your property's market value and assessed value (35% of market value), along with an estimate of your property tax bill. Marion County follows a triennial update cycle, meaning property values are reviewed and updated every three years based on recent sales data. When you receive your assessment notice, review it carefully to verify the property details are correct and the valuation is fair compared to similar homes in your area. If you believe your assessment is too high, you can file an appeal with the Board of Revision between January 1 and March 31 of the following year.

Official Resources

Marion County Auditor's Office →

Official county auditor website with property search, tax information, and exemption applications.

Marion County Board of Revision Portal →

Online portal for filing property tax appeals and accessing Board of Revision information.

Marion County Property Search →

Search and view property records, assessments, and tax information for any parcel in Marion County.

Ohio Department of Taxation - Property Tax Resources →

State-level property tax forms, exemption applications, and guidance for Ohio homeowners.

For state-wide appeal information including Ohio's assessment ratio and deadlines, see our Ohio Property Tax Appeal Guide →

Considering professional help with your appeal? Compare pricing, coverage, and pros/cons in our Best Property Tax Appeal Services (2026) or browse side-by-side service comparisons →

More Ohio Counties

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← All Ohio property tax appeal info

Sources: https://www.co.marion.oh.us/elected_offices/auditor/ | https://www.tax-rates.org/ohio/marion_county_property_tax | https://www.ownwell.com/trends/ohio/marion-county | https://www.co.marion.oh.us/elected_offices/auditor/departments/homestead_exemption/index.php | https://www.appealdesk.com/blog/how-to-appeal-property-taxes-in-ohio

Last verified: 2026-07-25