Clark County Property Tax Appeal — Ohio

Rob Hartley·Updated April 3, 2026

Clark County is located in southwestern Ohio with Springfield as its county seat, positioned between Dayton and Columbus. As of the 2020 census, the county had a population of 136,001 residents across 402 square miles. The county's median home value of approximately $117,390 is below Ohio's state median of $134,600, while the effective property tax rate of 1.32% to 1.69% (depending on source and district) is above the national median of 0.99%. Property tax appeals are particularly important here given that average property values increased 32% in recent reappraisals, potentially pushing many homeowners into higher tax brackets even as home values remain below state averages.

Notable cities: Springfield, New Carlisle, Enon

Median Home

$117,390

Tax Rate

1.32%

Annual Tax

$1,871

Population

136,001

2026 Appeal Deadline: March 31, 2026

Appeals for the 2025 tax year (payable in 2026) must be filed between January 1 and March 31, 2026. The filing deadline is March 31 of the year following the tax year being appealed. Forms must be received or postmarked by March 31, 2026. Late filings are not accepted.

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

How Clark County Assesses Property

35%of market value

Assessed by: Clark County Auditor's Office

Assessment cycle: triennial

Notices typically mailed: Spring (typically April)

In Clark County, your property tax is based on assessed value, not market value. Ohio law requires properties to be assessed at 35% of their fair market value. For example, if your home's market value is $117,390 (the county median), at Ohio's 35% assessment ratio your assessed value would be $41,087, resulting in approximately $1,550 in annual taxes at the county's effective rate of 1.32%. This assessment ratio is mandated by state law and applies uniformly across all 88 Ohio counties. The county reassesses all properties every six years through a full reappraisal with exterior-only inspections, and updates values every three years using sales data and market trends without property visits.

The Appeal Process

Appeals are heard by the Board of Revision. The Board of Revision hearing is a quasi-judicial process where testimony is given under oath and recorded. You will present your evidence to a three-member panel consisting of the County Auditor, County Treasurer, and one County Commissioner. The Board may ask questions and request additional information before rendering a decision. Remember that the burden of proof is on you as the property owner to demonstrate the Auditor's valuation is incorrect.

Step 1: Request an informal hearing with the County Auditor's appraisal team (typically held in September-October of reappraisal years). This is optional but recommended as a first step to resolve valuation disputes without formal filing.

Step 2: If informal review does not resolve your concerns, obtain DTE Form 1 (Complaint Against the Valuation of Real Property) from the Clark County Auditor's website at https://clarkcountyauditor.org/forms-info/ or in person at 31 N. Limestone Street, Springfield.

Step 3: Complete DTE Form 1 with your property information, current assessed value, and your opinion of the correct market value. Attach supporting evidence such as recent comparable sales, professional appraisal reports dated near January 1 of the tax year, photographs of property damage or condition issues, or repair estimates.

Step 4: File your completed complaint with the Clark County Board of Revision between January 1 and March 31, 2026. The form must be received or postmarked by March 31. You can file by mail, in person, or check for online filing options on the Auditor's website.

Step 5: The Auditor's Office will review your evidence. If sufficient evidence is provided, they may issue a settlement offer before scheduling a hearing. You can accept the offer or proceed to a formal hearing before the Board of Revision.

Step 6: If a hearing is scheduled, you will be notified at least 20 days in advance. Attend the quasi-judicial hearing before the three-member Board of Revision (County Auditor, County Treasurer, and one County Commissioner). Present your evidence and testimony under oath. The Board can increase, decrease, or maintain your property value.

Step 7: Receive the Board's written decision by certified mail. If you disagree with the decision, you can appeal to the Ohio Board of Tax Appeals using DTE Form 4 within 30 days, or appeal to the Clark County Court of Common Pleas.

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

Filing Methods

mail:Clark County Auditor, Board of Revision, 31 N. Limestone Street, AB Graham Building, Springfield, OH 45502

in-person:Clark County Auditor's Office, 31 N. Limestone Street, AB Graham Building, 2nd Floor, Springfield, OH 45502. Monday-Friday, 8:00 AM - 4:30 PM

online:Forms available at https://clarkcountyauditor.org/forms-info/ (check website for electronic filing portal availability)

Evidence to Bring

Recent comparable sales of similar properties in your neighborhood (within the past year)Professional appraisal report dated as of January 1 of the tax year under appealPhotographs showing property damage, deferred maintenance, or adverse conditionsRepair estimates or contractor bids for needed workDocumentation of factors negatively impacting property value (flooding, environmental issues, functional obsolescence)

Clark County Assessor Contact

Clark County Auditor's Office

Phone: (937) 521-1860

Address: 31 North Limestone Street, AB Graham Building, 2nd Floor, Springfield, OH 45502

Website: https://clarkcountyauditor.org

Online Portal: https://clarkcountyauditor.org/Forms

Hours: Monday - Friday, 8:00 AM - 4:30 PM

Tax Exemptions in Clark County

Homestead Exemption

$26,200 reduction in taxable value

A real estate tax reduction that exempts taxes on the first $26,200 of property value for qualifying homeowners, reducing the taxable value of their primary residence.

Eligibility: Available to homeowners who are 65 years of age or older as of January 1 of the application year, OR permanently and totally disabled, OR a surviving spouse at least 59 years of age of a previous approved applicant. Income limit applies: Ohio Adjusted Gross Income must be $40,000 or less (2025 application year). Must own and occupy the home as primary residence.Deadline: January 1 through December 31 annually

Disabled Veterans Exemption

100% exemption (full property tax exemption)

A complete property tax exemption on the primary residence for qualifying disabled veterans and their surviving spouses.

Eligibility: Available to veterans with a 100% total disability rating OR 100% Compensation Rating based on individual unemployability for a service-connected disability. Must own and occupy the home as primary residence as of January 1.Deadline: December 31 annually

Owner Occupancy Credit

2.5% reduction on tax bill

An automatic 2.5% reduction on property tax bills for homeowners who live in their home as their primary residence.

Eligibility: Must own and live in the home as primary residence on January 1 of the year. Once approved, the credit remains in place as long as you continue to own and occupy the home.Deadline: Apply using DTE Form 105C if not already receiving the credit; no annual reapplication required once approved

Official Resources

Clark County Auditor Website →

Official website for property searches, tax estimates, exemption applications, and Board of Revision forms and information.

Ohio Department of Taxation - Real Property →

State resource for property tax laws, assessment procedures, exemption programs, and downloadable DTE forms including appeal forms.

Clark County Property Tax Payment Portal →

Official Clark County page for property tax payment information, due dates, and contact information for the Treasurer's Office.

Clark County Reappraisal Information →

Comprehensive resource explaining the reappraisal process, informal hearings, tax exemptions, and how to file formal appeals in Clark County.

Check Your Clark County Assessment

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Frequently Asked Questions

What is the deadline to appeal my property taxes in Clark County for 2026?

The deadline to file a property tax appeal in Clark County is March 31, 2026, for the 2025 tax year. Appeals must be filed between January 1 and March 31, 2026, using DTE Form 1. Your complaint must be received by the Clark County Board of Revision or postmarked by the U.S. Postal Service by March 31, 2026. Private meter postmarks are not valid for establishing the filing date. Late filings are not accepted under Ohio law, so it's critical to submit your appeal well before the deadline.

How do I file a property tax appeal in Clark County online or by mail?

To file a property tax appeal in Clark County, obtain DTE Form 1 from the Clark County Auditor's website at https://clarkcountyauditor.org/forms-info/ or pick up a physical copy at 31 N. Limestone Street, Springfield. Complete the form with your property details, current value, and your opinion of correct market value, attaching supporting evidence such as comparable sales or appraisals. You can submit by mail to Clark County Auditor, Board of Revision, 31 N. Limestone Street, Springfield, OH 45502, or file in person during business hours Monday through Friday, 8:00 AM to 4:30 PM. Check the Auditor's website for electronic filing portal availability.

What is the homestead exemption worth in Clark County, and how do I apply?

The homestead exemption in Clark County exempts taxes on the first $26,200 of your property's value, which can save qualifying homeowners approximately $345 to $445 annually depending on local tax rates. To qualify, you must be 65 or older, permanently disabled, or a surviving spouse aged 59+, with Ohio Adjusted Gross Income of $40,000 or less. Apply using DTE Form 105A at the Clark County Auditor's Office between January 1 and December 31. Once approved, you'll receive a continuing application annually that only needs to be returned if your qualifying status changes. This state-funded exemption does not reduce funding to local services.

What happens at a Board of Revision hearing in Clark County?

A Board of Revision hearing in Clark County is a formal, quasi-judicial proceeding where you present evidence to a three-member panel consisting of the County Auditor, County Treasurer, and one County Commissioner. You'll be notified of your hearing date at least 20 days in advance. During the hearing, you'll be sworn in under oath and asked to present evidence supporting your opinion of value, such as comparable sales, appraisals, or property condition issues. The Board may ask questions about your property and evidence. After reviewing all testimony and documentation, the Board will issue a written decision by certified mail, which can increase, decrease, or maintain your property's assessed value. The burden of proof is on you as the property owner.

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

Potential savings from a successful property tax appeal in Clark County depend on how much your assessed value is reduced and your local tax rate. With the county's effective rate ranging from 1.32% to 1.7% depending on your district, a reduction of $10,000 in market value (which equals $3,500 in assessed value at the 35% ratio) could save you approximately $132 to $170 annually, or $660 to $850 over five years. Given that Clark County property values increased an average of 32% in the most recent reappraisal, homeowners with overvalued properties may see significant reductions. However, success requires strong evidence such as recent comparable sales or professional appraisals demonstrating your home is assessed above true market value.

What evidence do I need for a successful Clark County property tax appeal?

For a successful property tax appeal in Clark County, you need compelling evidence that your property's assessed value exceeds its true market value as of January 1 of the tax year. The most effective evidence includes: a professional appraisal dated near January 1 of the tax year under appeal; recent sales of comparable properties (similar size, age, condition, location) that sold for less than your assessed value; photographs documenting property damage, deferred maintenance, or adverse conditions; and contractor estimates for necessary repairs. The Board of Revision will not consider arguments based solely on tax increases, comparisons to neighbors' values, or personal financial hardship. Submit all evidence when filing DTE Form 1 or at least 5-10 days before your scheduled hearing.

Can I appeal my Clark County property taxes if I already appealed in the last three years?

Generally, Ohio law allows property owners to file only one complaint per triennial (three-year) period in Clark County. However, you can file again within the three-year period if specific qualifying events have occurred, such as: a change in property characteristics (substantial damage, demolition, new construction), an error in the original assessment, or other circumstances permitted under Ohio Revised Code Section 5715.19. You must check the appropriate box on DTE Form 1 and explain the reason for the valuation change on an attached sheet. If your situation doesn't meet these exceptions, you'll need to wait until the next appeal window in the triennial cycle. Contact the Board of Revision at(937) 521-1878 if you're unsure whether you qualify for a second filing.

When will I receive my property assessment notice in Clark County?

Assessment notices in Clark County are typically mailed in the spring, usually by mid-April, following a reappraisal or triennial update year. These notices provide both the market value and assessed value (which is 35% of market value) along with an estimate of your annual property tax bill. Clark County conducts a full reappraisal every six years, which includes exterior-only property inspections by county appraisers, and performs triennial updates every three years using sales data and market trends without physical visits. The most recent reappraisal showed property values increasing an average of 32%, making it critical to review your notice carefully when it arrives and consider whether an informal hearing or formal appeal is warranted.

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://clarkcountyauditor.org | https://www.clarkcountyohio.gov/252/Property-Tax | https://clarkcountyauditorreappraisalhttps://.dcpromosite.com | https://tax.ohio.gov/divisions-agencies/real-property | https://www.tax-rates.org/ohio/clark_county_property_tax | https://sdglegal.net/ohio-property-tax-deadline-2026

Last verified: 2026-04-03