Washington County Property Tax Appeal, Ohio

Travis Bunn·Updated July 25, 2026

Washington County is located in southeastern Ohio along the Ohio River, with Marietta serving as the county seat and largest city. The county has a population of approximately 59,771 residents and covers 632 square miles of largely rural territory. Property tax appeals matter significantly here because Washington County's median property tax rate of 1.22% is higher than Ohio's state median of 1.60%, though the median annual tax bill of $1,268 remains well below the national median of $2,400. The county is in the first year of its triennial reappraisal cycle for 2025 (payable 2026), making this an optimal year to appeal as any reduction applies to all three years of the valuation period.

Notable cities: Marietta, Belpre, Beverly

Median Home

$174,100

Tax Rate

1.22%

Annual Tax

$1,268

Population

59,771

On the typical Washington County home, valued near $174,100 at the county’s effective tax rate of 1.22%, 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.

The deadline to file a property tax appeal in Washington County is March 31, 2026 for tax year 2025 assessments. This is a strict statutory deadline with no extensions. Mailed complaints must be received by March 31 or bear a USPS postmark of March 31 or earlier. Private meter postmarks are not valid. Washington County is in a reappraisal year (2025), which is the optimal time to appeal because any successful reduction will apply to all three years of the triennial period (2025-2027).

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

How Washington County Assesses Property

35%of market value

Assessed by: Washington County Auditor's Office

Assessment cycle: triennial

Notices typically mailed: Spring

Ohio assesses all residential property at 35% of market value, meaning your assessed (taxable) value is always 35% of your home's appraised market value. For example, if your home's market value is $174,100 (Washington County's median), at Ohio's 35% assessment ratio your assessed value would be $60,935, resulting in approximately $1,268 in annual taxes at the county's effective rate of 1.22%. Property taxes are then calculated by applying the local millage rate to this 35% assessed value, not to the full market value.

The Appeal Process

Appeals are heard by the Board of Revision. The Board of Revision hearing is informal and typically lasts 5-15 minutes. You will present your evidence to a three-member board consisting of the County Auditor (or representative), County Treasurer, and a County Commissioner. The board will review your comparable sales, photos, and other evidence, and may ask questions about your property's condition and value.

Review your property assessment on the Washington County Auditor's website at auditorwashingtoncountyohio.gov or by calling (740) 373-6623 ext. 2142. Verify your property's market value, assessed value, and physical characteristics for any errors.

Gather supporting evidence including recent comparable sales (3-5 homes within half-mile that sold in the last 12 months), photographs of property defects, repair estimates, and an independent appraisal if available. Focus on properties similar in size, age, and condition that sold for less than your assessed market value.

Consider requesting an informal review with the Washington County Auditor's Office before filing a formal appeal. This can often resolve disputes without a formal hearing and may result in a voluntary reduction by the auditor.

Complete DTE Form 1 (Complaint Against the Valuation of Real Property) with all required information and attach all supporting evidence. Submit the form by mail or in person to the Washington County Board of Revision at 205 Putnam Street, Marietta, OH 45750 no later than March 31, 2026.

Attend your Board of Revision hearing, typically scheduled within 60-120 days of filing. The Board consists of the County Auditor, County Treasurer, and a County Commissioner. Present your evidence clearly in 5-15 minutes, focusing on comparable sales and market data. Be aware that school districts may file counter-complaints seeking to increase your value if your reduction request exceeds $50,000 in market value.

If you disagree with the Board of Revision's decision, you may appeal to the Ohio Board of Tax Appeals by filing DTE Form 4 within 30 days of the Board's decision notice. Appeals can also be filed with the Court of Common Pleas (with a $250 filing fee).

If still unsatisfied after the Board of Tax Appeals decision, you may file a final appeal to the Ohio Supreme Court, though this level typically requires legal representation.

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

Filing Methods

mail:Washington County Auditor, Board of Revision, 205 Putnam Street, Marietta, OH 45750

in-person:Washington County Auditor's Office, 205 Putnam Street, Marietta, OH 45750 (Monday-Friday, 8:00 AM - 5:00 PM)

phone:Call (740) 373-6623 to request forms and filing instructions

Evidence to Bring

Recent comparable sales (3-5 properties sold within last 12 months, within half-mile radius)Photographs of property defects, damage, or outdated featuresIndependent appraisal report (if available)Repair estimates for needed workDocumentation of any errors in property characteristics (square footage, bedrooms, etc.)Market data showing declining property values in your area

Washington County Assessor Contact

Washington County Auditor's Office

Website: https://auditorwashingtoncountyohio.gov/

Online Portal: http://www.washingtoncountyauditor.us/Home.aspx

Hours: Monday - Friday, 8:00 AM - 5:00 PM

Tax Exemptions in Washington County

Homestead Exemption for Seniors and Disabled Persons

$25,000 market value exemption

Reduces the taxable value of your home by exempting $25,000 of the market value from taxation, providing significant property tax savings for qualifying homeowners.

Eligibility: Available to homeowners age 65 or older, or permanently and totally disabled persons who own and occupy their home as their primary residence on January 1 of the tax year. Must meet income requirements: Ohio Adjusted Gross Income of $41,000 or less for tax year 2026 (based on 2025 tax return). No income test applies if you received the exemption for 2013 tax year.Deadline: December 31 of each year (applications accepted for prior and current year)

Disabled Veterans Homestead Exemption

$50,000 market value exemption

Enhanced property tax exemption for qualifying disabled veterans, providing up to $50,000 of market value exemption from property taxes with no income test required.

Eligibility: Available to veterans with a 100% permanent and total disability rating from the U.S. Department of Veterans Affairs, or those with a total disability rating for compensation based on individual unemployability. Must be honorably discharged and own and occupy the home as primary residence. Surviving spouses may continue receiving the benefit.Deadline: December 31 of each year (file DTE Form 105I with County Auditor)

Owner-Occupancy Tax Reduction

2.5% reduction

Automatic reduction in property taxes for owner-occupied residential properties, applied directly to your tax bill without requiring a separate application.

Eligibility: Automatically applied to all owner-occupied residential properties. Combined with the 10% residential rollback that applies to all residential properties (owner-occupied or not), owner-occupied homes receive a total 12.5% reduction.Deadline: Contact Auditor's Office at (740) 373-6623 ext. 2121 if not receiving this reduction

Washington County Appeal Packet · $49

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Frequently Asked Questions

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

The deadline to file a property tax appeal in Washington County is March 31, 2026 for tax year 2025 assessments. This is a strict statutory deadline with no exceptions or extensions. If mailing your appeal, it must be received by March 31 or bear a USPS postmark of March 31 or earlier. Washington County is in the first year of its triennial reappraisal cycle (2025), making this an especially important year to appeal because any successful reduction will apply to all three years of the valuation period (2025-2027), resulting in three years of tax savings from a single appeal.

How do I file a property tax appeal in Washington County?

To file a property tax appeal in Washington County, you must complete DTE Form 1 (Complaint Against the Valuation of Real Property) and submit it to the Washington County Board of Revision at 205 Putnam Street, Marietta, OH 45750 by March 31, 2026. You can file by mail or in person during business hours (Monday-Friday, 8:00 AM - 5:00 PM). Include all supporting evidence such as comparable sales, photos of defects, and repair estimates with your initial filing. There is no fee to file an appeal. Before filing a formal appeal, consider requesting an informal review with the Auditor's Office by calling (740) 373-6623 ext. 2142, as many disputes are resolved at this stage without a formal hearing.

What is the homestead exemption worth in Washington County?

Washington County's homestead exemption for seniors (age 65+) and permanently disabled persons reduces your home's taxable value by exempting $25,000 of market value from property taxes. At Washington County's effective tax rate of 1.22%, this translates to approximately $107 in annual tax savings. To qualify, you must own and occupy your home as your primary residence and have an Ohio Adjusted Gross Income of $41,000 or less for tax year 2026. Disabled veterans with a 100% disability rating qualify for an enhanced exemption of $50,000 in market value (approximately $214 in annual savings) with no income test required. Applications must be filed with the Washington County Auditor by December 31.

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

A Board of Revision hearing in Washington County is an informal proceeding where you present your evidence to a three-member board consisting of the County Auditor (or representative), County Treasurer, and a County Commissioner. Hearings typically occur 60-120 days after filing and last 5-15 minutes. You will present your comparable sales data, photographs, appraisals, and other evidence showing your property is overvalued. The board members may ask questions about your property's condition, features, and the comparables you selected. Be prepared and organized, focus on factual market data rather than complaints about tax amounts or increases. Ohio law allows school districts to file counter-complaints seeking to increase your value if your requested reduction exceeds $50,000 in market value.

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

Potential savings from a successful property tax appeal in Washington County depend on the amount your assessment is reduced. At Washington County's effective tax rate of 1.22%, a reduction of $10,000 in market value saves approximately $43 annually (remember, Ohio only taxes 35% of market value, so $10,000 × 35% × 1.22% = $43). Because Washington County is in a reappraisal year for 2025, any reduction achieved will apply for all three years of the triennial period (2025-2027), tripling your total savings. For example, a $20,000 market value reduction would save approximately $86 per year, or $258 over the three-year period. Properties that are 10-20% overassessed can see savings of several hundred dollars annually.

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

For a successful property tax appeal in Washington County, you need compelling evidence that your property is assessed above fair market value. The strongest evidence includes 3-5 recent comparable sales of similar homes within a half-mile radius that sold in the last 12 months for less than your assessed market value. Match properties as closely as possible on square footage, age, bedrooms, bathrooms, and condition. Additionally, provide photographs documenting property defects, damage, outdated features, or needed repairs. Include repair estimates from licensed contractors if significant work is needed. An independent appraisal performed by a licensed appraiser can be powerful evidence. Submit all evidence with your DTE Form 1 when filing, or at least 5 days before your scheduled hearing.

Can I appeal my Washington County property taxes online?

Washington County does not currently offer online filing for Board of Revision complaints. Property tax appeals must be filed by mail or in person at the Washington County Auditor's Office, 205 Putnam Street, Marietta, OH 45750. You can download DTE Form 1 online from the Ohio Department of Taxation website, but the completed form with supporting evidence must be submitted via mail or hand-delivered to the Board of Revision by March 31, 2026. However, you can access property records and research comparable sales online through the Washington County Auditor's website at auditorwashingtoncountyohio.gov or washingtoncountyauditor.us. For questions or to request forms, call (740) 373-6623.

Why are my Washington County property taxes increasing even though property values declined?

Property tax increases in Washington County can occur even when individual property values decline due to the interaction between assessed values, millage rates, and Ohio's complex tax reduction system. Your property taxes are calculated by multiplying your assessed value (35% of market value) by the effective millage rate, which includes levies approved by voters for schools, libraries, and local services. When new levies pass or existing levies are renewed without reduction factors, your total tax rate increases regardless of property values. Additionally, Ohio's tax reduction factor mechanism, designed to prevent dramatic tax swings during reappraisals, can cause some properties to see increases while others see decreases. If you believe your assessed market value is too high, file an appeal by March 31, Washington County is in a reappraisal year for 2025, so this is the optimal time to challenge your valuation.

Official Resources

Washington County Auditor Website →

Official website for property searches, assessment information, and contact information for the Washington County Auditor's Office.

Washington County Property Search →

Online property search tool to look up your property's assessed value, market value, and tax bill by parcel number, address, or owner name.

Ohio Department of Taxation - Property Tax Forms →

Official source for DTE Form 1 (Board of Revision complaint form), DTE Form 4 (appeal to Board of Tax Appeals), and homestead exemption applications.

Washington County Official Website - Tax Information →

Information on property tax bills, exemptions, payment due dates, and explanations of assessment ratio and tax calculations in Washington County.

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://auditorwashingtoncountyohio.gov/ | https://www.washingtongov.org/ | https://www.ownwell.com/trends/ohio/washington-county | https://jonespyattlaw.com/ohio-property-tax-appeal-window-approaching/ | https://www.appealdesk.com/blog/how-to-appeal-property-taxes-in-ohio | https://sdglegal.net/ohio-property-tax-deadline-2025/

Last verified: 2026-07-25