Darke County Property Tax Appeal — Ohio

Rob Hartley·Updated April 3, 2026

Darke County is a rural county located in western Ohio with Greenville serving as the county seat. The county encompasses one city (Greenville), 20 villages, and 20 townships. With a median home value of approximately $114,600 and an effective tax rate of around 0.99-1.05%, Darke County offers considerably lower property tax burdens than many other Ohio counties. The median annual property tax bill of $1,139-$1,422 is substantially below the national median of $2,400, making property tax appeals particularly worthwhile for homeowners who believe their assessments are incorrect.

Notable cities: Greenville, Arcanum, Ansonia, Versailles

Median Home

$114,600

Tax Rate

0.99%

Annual Tax

$1,139

Population

51,881

2026 Appeal Deadline: March 31, 2026

For tax year 2025 assessments, complaints must be filed with the Darke County Board of Revision between January 1 and March 31, 2026. The complaint must be received or postmarked by March 31, 2026. The mailbox rule applies - if filed by mail, the date of the United States postmark is treated as the filing date.

Property in Darke County, Ohio — local tax assessment and appeal guide

How Darke County Assesses Property

35%of market value

Assessed by: Darke County Auditor's Office

Assessment cycle: sexennial (six-year reappraisal with triennial updates)

Notices typically mailed: Spring (mid-April)

In Darke County, properties are assessed at 35% of their market value for tax calculation purposes, which is Ohio's standard assessment ratio. For example, if your home's market value is $114,600 (the county median), at Ohio's 35% assessment ratio your assessed value would be $40,110, resulting in approximately $1,139 in annual taxes at the county's effective rate of 0.99%. This means you're only taxed on 35% of what your property is actually worth on the open market.

The Appeal Process

Appeals are heard by the Board of Revision. The Darke County Board of Revision consists of three members: the County Auditor, County Treasurer, and President of the County Commissioners (or their representatives). Hearings typically last 15-30 minutes and allow you to present evidence supporting your opinion of your property's fair market value as of January 1 of the tax year in question.

Step 1: Review your property assessment notice received in mid-April. Compare your property's assessed market value to recent sales of comparable properties in your neighborhood.

Step 2: Gather supporting evidence including recent comparable home sales (within the last 12 months), a professional appraisal dated as of January 1 of the tax year, photographs showing property defects or damage, repair estimates for needed work, or a market analysis from a licensed real estate agent.

Step 3: Obtain and complete DTE Form 1 (Complaint Against the Valuation of Real Property). You can download it from the Ohio Department of Taxation website or request it from the Darke County Auditor's Office at(937) 547-7310. The form must be completed accurately with your opinion of market value and justification for the change.

Step 4: File your complaint with the Darke County Board of Revision between January 1 and March 31, 2026. Submit your completed DTE Form 1 along with all supporting evidence by mail or in person. Keep copies of everything you submit.

Step 5: Attend your Board of Revision hearing when scheduled. You will receive written notice at least 10 days before your hearing date. Present your evidence professionally and be prepared to explain why your property's value should be reduced. The hearing typically lasts 15-30 minutes.

Step 6: Await the Board's written decision, which will be mailed to you after the hearing. If you disagree with the Board of Revision's decision, you have 30 days from the date of the decision to appeal to the Ohio Board of Tax Appeals or the Court of Common Pleas.

Required form: DTE Form 1 (Complaint Against the Valuation of Real Property)

Filing Methods

mail:Mail to: Darke County Auditor, Attn: Board of Revision, 504 S. Broadway, Courthouse 1st Floor, Greenville, OH 45331

in-person:Deliver to Darke County Auditor's Office, 504 S. Broadway, Courthouse 1st Floor, Greenville, OH 45331. Hours: Monday-Friday, 8:00 AM - 4:00 PM

phone:Call(937) 547-7310 to request forms or ask questions about the appeal process

Evidence to Bring

Recent comparable sales (properties similar in size, age, condition, and location that sold within the past year)Professional appraisal prepared as of January 1 of the tax yearPhotographs documenting property damage, defects, or needed repairsRepair estimates or contractor bids for needed workReal estate market analysis from a licensed agent

Darke County Assessor Contact

Darke County Auditor's Office

Phone: ((937) 547-7310

Address: 504 S. Broadway, Courthouse 1st Floor, Greenville, OH 45331

Website: https://darkecountyrealestate.org

Hours: Monday-Friday, 8:00 AM - 4:00 PM

Tax Exemptions in Darke County

Homestead Exemption for Seniors and Disabled

$29,000 reduction in market value

Reduces the taxable value of a primary residence for eligible homeowners, providing property tax relief.

Eligibility: Must be age 65 or older by December 31 of the application year, OR permanently and totally disabled as of January 1, OR surviving spouse of a qualifying homeowner who was at least 59 at death. Must own and occupy the home as primary residence as of January 1. Ohio Adjusted Gross Income must not exceed $41,000 for 2026 applications (based on 2025 income). Those who received the exemption in tax year 2013 are grandfathered and not subject to income limits.Deadline: December 31 of the application year (though applications accepted year-round, apply early for best results)

Enhanced Homestead Exemption for 100% Disabled Veterans

$58,000 reduction in market value (approximately double the standard homestead exemption)

Provides an enhanced property tax reduction for qualifying disabled veterans and their surviving spouses.

Eligibility: Must have received a 100% disability rating for service-connected disabilities from the VA, OR received a 100% rating based on individual unemployability. Must own and occupy the home as primary residence. No income limit applies. Surviving spouses of qualifying veterans also eligible.Deadline: December 31 annually

Homestead Exemption for Surviving Spouses of Public Service Officers

$58,000 reduction in market value (enhanced exemption level)

Property tax exemption for surviving spouses of first responders killed in the line of duty.

Eligibility: Must be the surviving spouse of a public service officer (police officer, sheriff, firefighter, paramedic, EMT) killed in the line of duty. Must provide verification from state pension fund or the department/agency. Must own and occupy home as primary residence. No income limit applies.Deadline: December 31 annually

Owner-Occupancy Credit

2.5% reduction on property tax bill

Provides a 2.5% reduction on property taxes for homeowners who live in their home.

Eligibility: Must own and occupy the home as of January 1 of the year you apply. Available to any owner-occupant - no age or income requirements. Only one property per homeowner and spouse in Ohio. Applies to one acre of land and the home only.Deadline: No specific deadline - applications accepted year-round

Official Resources

Darke County Auditor Property Search →

Official website to search property records, view assessments, pay taxes, and access forms for the Darke County Auditor's Office.

Ohio Department of Taxation - Property Tax Forms →

Download DTE Form 1 and other official Ohio property tax appeal forms, instructions, and guidance documents.

Ohio Board of Tax Appeals →

File a second-level appeal if you disagree with your Board of Revision decision, access filing requirements, and learn about the appeals process.

Darke County Homestead Exemption Information →

Learn about homestead exemption qualifications, application procedures, and property tax relief programs available to Darke County residents.

Check Your Darke County Assessment

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Frequently Asked Questions

What is the deadline to appeal my property taxes in Darke County for the 2026 filing year?

The deadline to file a property tax appeal in Darke County is March 31, 2026, for tax year 2025 assessments. Your appeal must be filed with the Darke County Board of Revision between January 1 and March 31, 2026. If you mail your appeal, it must be postmarked on or before March 31, 2026 - the mailbox rule applies, meaning the U.S. postmark date is treated as your filing date. Missing this deadline means you'll have to wait until the next filing period, so it's important to submit your appeal well before the deadline to avoid any issues.

How do I file a property tax appeal with the Darke County Board of Revision?

To file a property tax appeal in Darke County, you must complete DTE Form 1 (Complaint Against the Valuation of Real Property) available from the Ohio Department of Taxation website or by calling the Darke County Auditor's Office at(937) 547-7310. You'll need to provide your property information, your opinion of the correct market value, and explain why you believe the current assessment is incorrect. Submit the completed form along with supporting evidence such as recent comparable sales, appraisals, or photos of property damage. File by mail to 504 S. Broadway, Courthouse 1st Floor, Greenville, OH 45331, or deliver in person during office hours (Monday-Friday, 8:00 AM - 4:00 PM). Make sure to file between January 1 and March 31, 2026.

What evidence do I need to win my Darke County property tax appeal?

The strongest evidence for a Darke County property tax appeal includes recent comparable sales of similar properties in your neighborhood that sold for less than your assessed value, ideally within the past 12 months. A professional appraisal prepared as of January 1 of the tax year in question is highly persuasive. You should also include photographs documenting any property damage, structural issues, or needed repairs, along with contractor estimates for repair costs. A market analysis from a licensed real estate agent can also support your case. The Board of Revision will not consider arguments based solely on tax increases, inability to pay, or what your neighbors pay - you must prove your property's actual market value is lower than the auditor's assessment.

What happens after I file my property tax appeal in Darke County?

After you file your appeal with the Darke County Board of Revision, the Auditor's office staff will review your complaint and supporting evidence. You will receive written notice of your hearing date at least 10 days in advance. The hearing will be conducted before the three-member Board of Revision (consisting of the County Auditor, County Treasurer, and President of the County Commissioners or their representatives). The hearing typically lasts 15-30 minutes, during which you'll present your evidence and explain why your assessment should be reduced. After the hearing, the Board will issue a written decision that will be mailed to you. If you disagree with the Board's decision, you have 30 days from the decision date to appeal to the Ohio Board of Tax Appeals or Court of Common Pleas.

How much can I save by appealing my property taxes in Darke County?

The amount you can save depends on how much your property's assessment is reduced through the appeal process. In Darke County, with an effective tax rate of approximately 0.99%, every $10,000 reduction in your property's market value saves you about $35 annually in property taxes (calculated as $10,000 × 0.35 assessment ratio × 0.0099 tax rate). For example, if you successfully reduce your home's assessed value from $150,000 to $120,000 (a $30,000 reduction), you would save approximately $104 per year. Nationally, about 25% of homes are over-assessed, with affected homeowners paying an average of $1,346 too much annually. If your appeal is successful, the reduced value generally applies for multiple years until the next reappraisal cycle, multiplying your savings.

Can I appeal my Darke County property taxes if I just bought my home?

Yes, you can appeal your property taxes in Darke County even if you recently purchased your home, and a recent purchase price below the assessed value can actually be strong evidence for your appeal. If you bought your property within the last three years for less than the auditor's assessed market value, include your closing statement and deed as evidence when filing DTE Form 1. The Board of Revision considers recent arm's-length sales (where neither buyer nor seller was under unusual pressure) as valid evidence of market value. However, foreclosures, short sales, bank sales, or other distressed sales are not considered valid comparables. Your recent purchase price as of January 1 of the tax year can be compelling proof that the assessment is too high, especially if the sale was recent and market conditions haven't changed significantly.

What is the Darke County homestead exemption worth and how do I apply?

The Darke County homestead exemption reduces your property's taxable value by $29,000 for qualifying senior citizens (age 65+), disabled persons, and certain surviving spouses, resulting in average annual savings of approximately $287 in property taxes. To qualify for 2026, you must be 65 by December 31, 2026, or be permanently and totally disabled, and your Ohio Adjusted Gross Income must not exceed $41,000 (based on 2025 income). Disabled veterans with a 100% service-connected disability rating receive an enhanced exemption worth $58,000, saving approximately $574 annually, with no income limit. To apply, complete DTE Form 105A (available from the Auditor's Office at(937) 547-7310 or online) and submit it by December 31, though applications are accepted year-round. You must own and occupy the home as your primary residence as of January 1 of the year you're applying for.

How does Ohio's 35% assessment ratio affect my Darke County property taxes?

Ohio law requires all properties to be assessed at 35% of their market value, which means you only pay taxes on 35% of what your home is actually worth. In Darke County, if your home has a market value of $150,000, your assessed value for tax purposes would be $52,500 ($150,000 × 0.35). This assessed value is then multiplied by your local tax rate to determine your annual tax bill. For example, with Darke County's effective rate of approximately 0.99%, a $150,000 home would generate an annual tax bill of about $1,485 ($150,000 × 0.0099). Understanding this ratio is important when filing an appeal because you need to challenge the full market value shown on your assessment notice, not just the assessed value. When presenting comparable sales as evidence, compare the actual sale prices to your property's full market value assessment.

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 →

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← All Ohio property tax appeal info

Sources: https://www.tax-rates.org/ohio/darke_county_property_tax | https://honestcasa.com/taxes/ohio/darke-property-tax-guide | https://darkecountyrealestate.org | https://www.mydarkecounty.com/countyoffices | https://www.strausstroy.com/articles/the-great-property-value-explosion-of-2025 | https://caao.org/auditors-directory/name/darke-county/

Last verified: 2026-04-03