Ottawa County Auditor Property Search: Records, Tax & GIS

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Ottawa County, Ohio · Owner, parcel, tax, sales, map and deed help

Find a Property, Tax Record or Parcel Map

Search Ottawa County property records by owner name, street address or property number, then use the parcel page to review ownership, appraised value, assessed value, land, buildings, sales, tax details and legal-description clues.

This guide explains exactly what to enter, which property type and tax year to select, how to fix a failed search, what each result means, and when to move from the Auditor to the Treasurer, GIS, Recorder, Engineer or Board of Revision.

Start with the quick answer Follow the screenshot guide Fix a failed search
Verify the parcel before relying on the record. Match the location and complete property number—not only an owner name. Ottawa County states that public data is constantly changing and does not warrant that every online record is free from errors or omissions.

Quick answer: where should you search?

Use the official Ottawa County Auditor portal for owner, location, property-number, sales and custom searches. Choose the correct tax year, keep Real Estate selected for ordinary land and buildings, use Manufactured Home only when appropriate, and verify the result using both the location and property number.

1 Choose search type Name, location, number, sales or custom.
2 Enter less information Start with a surname or simple address.
3 Open the correct property Match location and property number.
4 Use the next tool Tax bill, GIS, deed, estimator or appeal.
Auditor

Jennifer J. Widmer

419-734-6740

Office
315 Madison Street
Room 202
Port Clinton, OH 43452
Hours

Monday–Friday

8:00 a.m.–4:30 p.m.

Once you understand the four-step workflow, open the official portal. The Auditor upgraded the real-estate site in late December 2025, so replace any bookmark that still opens the older Schneider page.

Open official property search Open Auditor homepage
Official search screenshot

What to click on the Ottawa County search page

Ottawa County Ohio Auditor property search with address, parcel, owner and tax-year lookup options
Use the official Ottawa County Auditor search to find real estate or manufactured-home records by address, owner name or property number.
Choose the search tab Use Location when you know the address, Name when you know the owner, Number when you have the property number, Sales for comparable transfers, or Custom for a multi-field research list.
Select the tax year Use the current year for present information. Switch years only when comparing an earlier value, owner display or tax record.
Select the property type Keep Real Estate checked for land and permanent buildings. Select Manufactured Home when the home is maintained in that property system.
Enter one clean search value A simplified address, surname or complete property number usually works better than filling several fields.
Run Search Use Clear before changing to a completely different owner, property or search type.
Verify the result Match the property number, location, owner and land-use information before opening tax, map or deed resources.
Screenshot tip: The image shows the search interface, but live values and ownership can change. Always use the official portal for the final lookup rather than treating the screenshot as a current record.

Choose the exact property task

This guide is organised around real actions, not a list of unexplained links.

Start with the correct office

Which Ottawa County property tool do you need?

Correct office or portal for common property tasks
Your task
Use
What it provides
Important limit
Find owner, address, number or value
Auditor property search
Owner display, location, valuation, land, buildings, transfers and tax links.
The owner display is not a title opinion.
Find a tax bill or payment status
Treasurer
Tax search, bill information, payment and collection help.
The Auditor does not collect real-estate tax money.
View parcel boundaries or aerials
Auditor Parcel Viewer / GIS
Parcel location, surrounding parcels and reference mapping.
The map is not a legal survey.
Find deed, mortgage, lien or easement
Recorder
Official recorded documents and indexes.
Public searching is not a complete professional title examination.
Compare recent sales
Auditor Sales Search
Sale amount, date, year built, living area, stories, bedrooms, acreage and district filters.
Not every transfer is a valid open-market sale.
Estimate a future tax effect
Auditor Tax Estimator
An estimate based on property class, tax district, appraised value and owner-occupancy selection.
It is an estimate, not the final certified bill.
Challenge market value
Board of Revision
DTE 1 or DTE 2 filing and a hearing process.
The filing must address value or assessment, not merely the tax amount.
Efficient workflow: Find the parcel through the Auditor, copy its property number, and use that same identifier when checking taxes, maps, recorded documents, forms or an appeal.
Search troubleshooting

No Ottawa County property result found?

Owner name failed Search only the surname. Remove initials, suffixes and punctuation, then try a former owner, trust, estate or business name.
Address failed Keep only the house number and main street word. Remove unit, direction and Road, Street, Avenue or Drive.
Property number failed Check leading zeros, separators and whether a zero was copied as the letter O.
Recent sale is missing Search the seller’s name and check the Recorder’s official search for the new deed.
Vacant or shoreline land The parcel may not have a normal street address. Search by owner or property number and use the Parcel Viewer.
Island property Mailing, village, township and physical-location wording may differ. Verify the property number and GIS position.
New split or combination Search the parent parcel, former property number or current owner and contact the Auditor.
Wrong property type Run the same search under Manufactured Home when the home is not appearing as ordinary real estate.

Prepare this information before calling

Property address or location description
Current and former owner names
Property number, when known
Approximate sale or transfer date
Township, village or island
Nearby road or intersection
Real Estate or Manufactured Home
Screenshot of the failed result
Auditor call script “I am trying to identify the property at [address or location]. The current or previous owner may be [name], and I have [property number, deed date or nearby road]. Can you confirm whether it is recorded as real estate, a manufactured home, a new split or another property number?”
Call 419-734-6740 Email the Auditor
Property-record decoder

Understand the Ottawa County property record

Common property fields and what to do next
Field
Meaning
Practical next step
Property number
The county identifier for the parcel or property record.
Save it for taxes, maps, deeds, forms and calls.
Owner
The ownership name currently displayed in the Auditor system.
Check the recorded deed when legal ownership proof is required.
Location
The physical-address or location description tied to the property.
Compare it with the map, not only the owner’s mailing address.
Land use
The category assigned to the property’s use.
Contact the Auditor if the recorded use is materially wrong.
Acres
The acreage associated with the property record.
Use a deed or survey for legal acreage and boundary questions.
Legal description
A description clue associated with the parcel.
Use the complete recorded instrument for a transfer or legal decision.
Appraised value
The county’s estimate of market value.
Check property facts and comparable valid sales before appealing.
Assessed value
Generally 35% of appraised value under Ohio’s tax system.
Use the correct district rate and reductions when estimating tax.
Sale information
Recorded transfer date, amount or validity indicators.
Open the Recorder record before treating it as complete deed information.
Tax Bill
A route to bill and levy-distribution information.
Use the Treasurer for payment status and collection questions.

Check these physical facts

Living area
Year built
Number of stories
Bedrooms
Land acreage
Property class or land use
Outbuildings and improvements
Recent transfer information
Value-review tip: Save screenshots or PDFs showing any factual error, but also gather independent proof such as photographs, permits, measurements, an appraisal or valid comparable sales.
Avoid a common search mistake

Real Estate or Manufactured Home?

Select Real Estate when
  • You are searching land or a conventional permanent building.
  • The home and land appear together as one real-property parcel.
  • The property number is shown on an ordinary real-estate tax bill.
Select Manufactured Home when
  • The home is maintained in the manufactured-home system.
  • You have a manufactured-home tax bill or title information.
  • A normal address search does not return the expected home.

Important manufactured-home rules

  • Owners must register a manufactured home with the Auditor within 30 days after locating it in Ottawa County.
  • The county warns that failure to register may result in a $100 fine.
  • A relocation notice is required when a manufactured home is moved on a public road in Ohio.
  • The published moving-permit charge is $5, and taxes must be paid before the notice is issued.
  • The county states that failure to obtain the notice may create a $100 fine for the owner and a separate $100 fine for the mover.
  • A manufactured-home sale is subject to a conveyance fee of $4 per $1,000 of sale price.

After identifying the property type and checking taxes, use the official Manufactured Homes page for registration, relocation, transfer and appeal details.

Open Manufactured Homes guidance
Current 2026 tax information

Check Ottawa County tax dates and bill details

Ottawa County’s current calendar lists the following dates for tax year 2025 payable in 2026. The Auditor announced that second-half bills were mailed July 7, 2026.

Real estate first half February 19, 2026

Past due date.

Real estate second half August 6, 2026

Verify the live bill before paying.

Manufactured home first half March 5, 2026

Past due date.

Manufactured home second half August 6, 2026

Verify payment status.

Find the bill and compare tax changes

Find the property through the Auditor Search by location, owner or property number.
Open the property record Verify the property number and tax year.
Select Tax Bill Use the bill button associated with that specific property.
Open Levy Distribution The Treasurer’s instructions say this view can compare year-to-year dollar changes by taxing entity and levy.
Move to the Treasurer for payment The Auditor maintains property and value information but does not collect real-estate tax money.
Save payment proof Keep the property number, amount, date and confirmation or receipt.

Why values and bills changed after the 2024 reappraisal

Ottawa County completed a full reappraisal in 2024. The Treasurer reports an average countywide value increase of about 33.5%, but a property’s actual tax change depends on its individual value, taxing district, inside millage, reduction factors, school-district millage, credits and special assessments.

Do not estimate tax from value alone. Ohio assessed value is generally 35% of appraised value, but the final bill also uses parcel-specific millage, reduction factors, rollback eligibility and special assessments.

Use the official Tax Estimator

Select Proposed or the relevant estimate mode Use the option that matches the question you are researching.
Select property class Residential and commercial properties do not necessarily receive identical credits.
Select the exact tax district A nearby property in another township, village or school district can have a different result.
Enter 100% appraised value Do not enter assessed value unless the tool specifically requests it.
Select Owner Occupancy only when eligible The estimator states that eligibility requirements must be met.
Treat the result as an estimate Verify the certified bill through the Treasurer.
Search Treasurer tax records Use official Tax Estimator Verify current due dates Open tax-rate files
GIS and shoreline parcel research

Use the Ottawa County Parcel Viewer safely

Find the property number first Copy it from the Auditor record before opening GIS.
Open the official Parcel Viewer Use the county application built by the Auditor’s Office.
Search or zoom to the property Compare roads, shoreline, islands and neighbouring parcels.
Turn on only relevant layers Too many active layers can hide the parcel or make labels difficult to read.
Compare map and property record Match the property number rather than judging from shape alone.
Use legal documents for boundaries Move to the deed, plat or survey when the exact line matters.
Lakefront and island warning: Aerial imagery, shoreline appearance and parcel graphics may not show the exact legal boundary, submerged-land rights, easements or current physical conditions. Do not place a fence, structure, dock, driveway or utility from the online map alone.

What GIS can and cannot answer

Useful for
  • Locating a parcel
  • Seeing neighbouring properties
  • Reviewing roads and shoreline context
  • Checking available aerial imagery
  • Finding likely plats or legal-description clues
Not proof of
  • Exact boundary location
  • Marketable title
  • Zoning permission
  • Flood-insurance determination
  • Dock, easement or access rights

After identifying the property and understanding these limits, open the official parcel application. Ottawa County provides the data “as is” for reference and does not guarantee its accuracy or interpretation.

Open official Parcel Viewer Open GIS and property downloads
Comparable-sale research

Search Ottawa County sales without using bad comparisons

The official Sales Search allows filters for sale amount, sale date, year built, living area, stories, bedrooms, acreage, land use, tax district, school district, valid sale and property type.

Build a useful sales search

Match location
  • Same township or municipality
  • Similar school district
  • Similar shoreline, island or inland setting
  • Similar road and neighbourhood context
Match property
  • Land use
  • Year built
  • Living area
  • Stories and bedrooms
  • Acreage
Match transaction
  • Recent sale date
  • Valid sale indicator
  • Similar property type
  • No obvious family, foreclosure or partial-interest issue
Waterfront comparison tip: Do not compare an inland home with a Lake Erie, Sandusky Bay, riverfront or island property only because the buildings are similar. Access, frontage, view, flood exposure and location can materially affect value.

Micro steps

  1. Choose a recent sale-date range.
  2. Select Valid Sale where appropriate.
  3. Narrow by tax district or school district.
  4. Add living-area, year-built and acreage ranges.
  5. Review each property record rather than relying on the results list alone.
  6. Save the property numbers and explain why each comparable is similar.
Open official Sales Search Build a Custom Search
Recorded land documents

Find deeds, mortgages, liens and easements

The Auditor helps identify the property. The Recorder maintains the legal land records, including deeds, mortgages, releases, liens, easements, leases, plats, land contracts and other recorded instruments.

Search official Recorder records

Copy the property clues Save the owner, former owner, property number, legal-description clues and approximate transfer date.
Open the official Recorder search Use Quick Search for a broad query or Advanced Search for more control.
Search grantor and grantee names Try current and former names, both spouses, trust names and business names.
Use document type or number Narrow the result to deeds, mortgages, releases, liens, easements or plats.
Add a recorded-date range This helps separate a recent purchase from older same-name documents.
Verify the image and index Match names, document number, date and property-description clues.
Examples of records maintained by the Ottawa County Recorder
Record group
Examples
Why users search it
Deeds
Warranty, quitclaim, survivorship and sheriff’s deeds.
Ownership history and transfer research.
Mortgages
Mortgages, assignments, releases, subordinations and waivers.
Loan and release research.
Liens
Federal tax, child support, mechanics, workers’ compensation and other liens.
Possible encumbrance research.
Other land records
Easements, leases, plats, land contracts, affidavits and transfer-on-death documents.
Access, restrictions, subdivision and chain-of-title questions.
Title warning: Finding one deed or seeing no obvious lien in a simple search does not prove clear title. Purchases, inheritance, easement disputes and complex ownership questions may require a professional title search or legal advice.
Recorder

Nathan J. Daniels

Phone

419-734-6730

800-788-8803 ext. 6730

Office

315 Madison Street, Room 204

8:30 a.m.–4:30 p.m.

Search official Recorder records Open Recorder office page Review documents on file
Board of Revision

Challenge an incorrect Ottawa County value

The Board of Revision hears formal complaints concerning valuation and assessment. For 2026, the January 1 through March 31 filing window has ended. Prepare early for the next filing period rather than waiting until the final days.

Check the property record first

Living area and building details
Year built and condition
Land acreage and use
Property type
Recent valid sale
Comparable sales
Physical damage
Demolished or missing improvements

Prepare a useful evidence package

Use the correct form DTE 1 is used for a complaint against real-property valuation. DTE 2 addresses assessment other than market value.
State the value you believe is correct Explain the factual basis rather than only saying the tax is too high.
Add photographs Show material condition, damage or factual problems clearly.
Add an appraisal or sales evidence The county specifically identifies certified appraisals, recent appraisals and similar-property sales as useful evidence.
File during the official window Complaints are accepted January 1 through March 31.
Keep a complete copy Save the form, evidence and proof of delivery.
Appeal the value, not the bill. The Board evaluates evidence about appraisal or assessment. Tax rates, voted levies and special assessments are separate issues.
Board of Revision call script “I reviewed property number [number] and believe the value is incorrect because [recent sale, appraisal, property-data error or physical condition]. Can you confirm whether I need DTE 1 or DTE 2, the next filing dates and the preferred evidence format?”
Open Board of Revision guidance Call appeal help: 419-734-6863
Forms and tax-saving programmes

Find Homestead, owner-occupancy and CAUV forms

Common Ottawa County Auditor forms
Form
Purpose
Preparation note
DTE 105C
Owner Occupancy Tax Reduction.
Use for a qualifying primary residence.
DTE 105A
Homestead for qualifying seniors, disabled persons and surviving spouses.
Check current income, residency and eligibility documentation.
DTE 105I
Homestead for qualifying disabled veterans and surviving spouses.
Prepare the required service and disability evidence.
DTE 109
Initial Current Agricultural Use Value application.
Review land-use and filing requirements before submitting.
DTE 109A
Annual CAUV renewal.
The 2026 deadline was March 2.
DTE 26
Destroyed or damaged real-property valuation deduction.
Document the date, cause and extent of damage.
DTE 100 / 100EX
Conveyance value statement or exemption reason.
Ottawa County now requires the new owner’s phone-number section to be completed fully.
Split / Combine Parcels
Applicable lots in a platted subdivision.
Confirm legal-description and Engineer requirements first.

Current CAUV date warning

The Auditor’s Important Dates page lists March 2, 2026 as the CAUV and Agricultural District initial-application and renewal deadline. The page warns that missed paperwork can lead to recoupment on 2026 taxes payable in 2027. Conservation contracts may be accepted for the current tax year through October 1, 2026.

Do not ignore a missed CAUV renewal. Contact the Auditor immediately rather than assuming the land will remain enrolled automatically.

After identifying the correct programme, download the current Ottawa County form instead of reusing an old PDF from another county.

Open current Auditor forms Check filing dates
Transfers, splits and legal descriptions

Prepare a deed transfer or parcel change

Ottawa County’s Real Estate Division lists a conveyance fee of $4 per $1,000 of value or consideration. A $100,000 transfer therefore produces a published conveyance-fee example of $400.

Before a transfer

Current deed
Property number
Complete legal description
DTE 100 or applicable exemption form
New owner’s phone number
CAUV or Homestead transfer form when applicable
Survey or plat for a split
Auditor and Recorder fees kept separate

Legal-description review

The Ottawa County Engineer recommends submitting new or existing metes-and-bounds descriptions for review at least seven working days before the intended closing date. The review process applies to deeds, easements, affidavits and other instruments using legal descriptions.

Do not use the GIS label as a deed description. A map outline, property number or abbreviated Auditor description is not a substitute for a complete legal description.
Review Auditor transfer information Open legal-description review guidance
Bulk research and public information

Request records or download property data

The Auditor provides public-record help by telephone, fax, walk-in request and email. Four public computers are available for property and tax searches: two in the Auditor’s Office, one in the Treasurer’s Office and one in the Recorder’s Office.

Use the correct option

One property Use Name, Location or Number Search.
Several comparable properties Use Sales Search or Custom Search.
Large data project Use the condensed Excel or full CAMA and tax data download.
Extensive records request Submit the Auditor’s Public Records Request Form with a specific description.
Data-download tip: Ottawa County also publishes nightly GIS, public-record and website XML extracts. These files are more suitable for analysis than manually copying hundreds of search results.
Open public-information guidance Open property-data downloads
Office routing and visit planning

Ottawa County property contacts and location

Contact the office that controls the next action
Office
Use it for
Contact
Location and hours
Auditor
Property search, values, records, forms, CAUV, Homestead and appeals.
419-734-6740
800-788-8803 ext. 6740
Fax: 419-734-6592
asktheauditor@co.ottawa.oh.us
315 Madison St., Room 202
Port Clinton, OH 43452
8:00 a.m.–4:30 p.m.
Treasurer
Tax bills, tax search, payment and collection questions.
419-734-6750
Fax: 419-734-6738
ahatmaker@co.ottawa.oh.us
315 Madison St., Room 201
Port Clinton, OH 43452
Recorder
Deeds, mortgages, liens, easements, plats and recorded copies.
419-734-6730
800-788-8803 ext. 6730
315 Madison St., Room 204
Port Clinton, OH 43452
8:30 a.m.–4:30 p.m.
Board of Revision
Formal valuation and assessment complaints.
419-734-6863
Auditor’s Office
January 1–March 31 filing period
Useful call script “I am contacting you about Ottawa County property number [number] at [location]. I need help with [owner record, value, tax bill, map, deed, exemption or transfer]. The online record currently shows [brief fact]. Which office, form or official page should I use next?”
Nearby county checks

Could the property be in another county?

Properties near the Ottawa County line, Sandusky Bay or western Lake Erie may use a mailing address that causes confusion. Confirm the county before repeating the same search.

Erie County

Useful for properties east of Ottawa County or associated with Sandusky-area locations.

Open the Erie County property-search guide
Lucas County

Useful for properties west of Ottawa County or linked with Toledo-area records.

Open the Lucas County property-search guide
Important limitations

What an online property record cannot prove

Useful for
  • Finding a property number
  • Reviewing owner and location displays
  • Checking values and physical facts
  • Finding tax, sales and map information
  • Locating recorded-document clues
Get additional verification for
  • Legal ownership and title
  • Exact land or shoreline boundaries
  • Easement, access or dock rights
  • Zoning, building or flood approval
  • Purchase, lending or legal decisions
Responsible-use warning: Do not identify, accuse or publish information about a person from a same-name result alone. Verify the property number and use public records lawfully.
Ten practical answers

Ottawa County property search FAQs

How do I search Ottawa County property records by owner name?

Open the official Ottawa County Auditor Name Search, select the correct tax year and property type, and begin with the owner’s last name. Add a first name only if the results are too broad, then verify the property number and location.

Can I search an Ottawa County property using only an address?

Yes. Use the Location Search and begin with the house number and main street name. Remove directions, punctuation, unit numbers and street suffixes if the first search returns no result.

What is the most accurate way to find an Ottawa County parcel?

Use the complete property number from a prior tax bill, deed, property report or GIS result. A property-number search avoids confusion caused by similar owner names and mailing-address variations.

Why is a recent buyer not shown as the owner?

A deed may be recorded before every public property system finishes updating. Search the former owner, review the Ottawa County Recorder’s official records and contact the Auditor when the ownership display remains unchanged.

What is the difference between appraised and assessed value in Ohio?

Appraised value estimates the property’s market value. Assessed value is generally 35 percent of appraised value in Ohio and is used with the parcel’s tax rates, reduction factors, credits and special assessments.

When are Ottawa County property taxes due in 2026?

The official Auditor calendar lists February 19, 2026 for first-half real-estate taxes and August 6, 2026 for second-half real-estate taxes. Manufactured-home dates are March 5 and August 6, 2026.

Are Ottawa County GIS parcel boundaries legally exact?

No. The parcel viewer is a reference tool and the county does not guarantee its accuracy for legal boundary use. Review recorded deeds, plats and surveys and consult a licensed surveyor when an exact boundary matters.

Where can I find an Ottawa County deed, mortgage or lien?

Use the Ottawa County Recorder’s official record search. Search by grantor or grantee, subdivision, document type, document number or recorded-date range, then verify the document image and index information.

How do I appeal an Ottawa County property value?

File a current DTE 1 complaint with the Ottawa County Board of Revision during the January 1 through March 31 filing period and provide value evidence such as photographs, a certified appraisal or comparable sales.

Who should I call about an Ottawa County property-tax payment?

Contact the Ottawa County Treasurer at 419-734-6750 for tax bills, payment status and collection questions. Contact the Auditor at 419-734-6740 for values, parcel facts, exemptions, property search and Board of Revision guidance.

Facts checked July 26, 2026: Property-search options, current office contacts, tax dates, Auditor forms, Board of Revision rules, manufactured-home guidance, GIS limitations, Recorder resources and legal-description procedures were checked against official Ottawa County pages. Verify the responsible office before a payment, deadline, filing, transfer or visit.
Independent guide: CountyAuditors.org is not the Ottawa County Auditor, Treasurer, Recorder, Engineer or Board of Revision. Live ownership, value, tax, map, filing and document information is controlled by the responsible government office. Online property information should not replace legal, title, surveying, lending or tax advice.
Ohio Auditor Tools · Tax Year 2026

10 Ohio Property Tax Calculators & Auditor Tools

Built specifically for Ohio's 35% assessment ratio, current DTE forms, and 2026 Homestead, Owner-Occupancy, CAUV, Conveyance Fee, and Board of Revision rules. Every number reflects verified Ohio Department of Taxation amounts.

Homestead: $29,000 Enhanced Vet: $58,000 OAGI limit: $41,000 Assessment: 35% of market BOR filing: Free · DTE 1

Annual Tax Bill Estimator

OHIO

Applies Ohio's 35% assessment ratio plus your county's effective millage tier — the actual math your auditor uses.

Pick a county tier and enter your market value.

Homestead Reduction Calculator

DTE 105A

2026 Ohio Homestead: $29,000 general or $58,000 enhanced (100% disabled vet, KIA spouse). OAGI under $41,000 required for non-veteran applicants.

Pick your situation and enter your home value.

Owner-Occupancy & Non-Business Credits

DTE 105C

Every Ohio owner-occupied home qualifies for the 2.5% Owner-Occupancy Credit plus the automatic 10% Non-Business Credit. Most owners don't realize these stack.

Enter your annual tax to see both credit amounts.

Conveyance Fee Calculator

ORC 322

When you sell or transfer Ohio property, the auditor collects $1 state + up to $3 county per $1,000, plus $0.50 per parcel. Counties choose their rate.

Enter sale price and pick your county rate.

CAUV Agricultural Savings

DTE 109

Ohio's Current Agricultural Use Value cuts taxable value dramatically for farmland (10+ acres, or smaller with $2,500+ annual gross income).

Enter both market and CAUV values to see savings.

Mill Rate Converter

Ohio tax rates appear three ways on auditor sites: mills, percent, or dollars per $1,000. Convert between them instantly.

Enter a rate to see all three forms.

Parcel Number Cleaner

Ohio's 88 counties each format parcels differently — Franklin uses 010-123456-00, Cuyahoga uses 001-23-456, Hamilton uses 100-0001-0001-00. Auto-detects.

Paste any Ohio county parcel to format it.

35% Ratio Sanity Check

Ohio law sets taxable value at 35% of market value. If yours is significantly higher, you're a strong BOR appeal candidate.

Enter both values to compare against Ohio's 35% target.

BOR Appeal Savings

DTE 1

A successful Board of Revision complaint typically cuts your value 10–20%. Filing is free and stays in effect until the next reappraisal.

Enter your tax bill and reduction estimate.

BOR Deadline Countdown

MAR 31

Ohio's statutory Board of Revision filing deadline is March 31 for the prior tax year. Miss it and you wait until next year — no extensions.

Set your deadline to start the countdown.

Verify with the official Ohio source

These calculators use the verified 2026 Ohio Department of Taxation amounts and statutory rules. For your exact bill, exemption status, and county-specific deadlines, always confirm with your county auditor and the Ohio Revised Code:

Ohio Dept. of Taxation — Real Property DTE Forms (105A, 105C, 1, 109) ORC 5715 — Board of Revision ORC 5713 — Taxable Real Property ORC 322.02 — Conveyance Fee ORC 319.54(F)(3) — State Fee ORC 5713.30 — CAUV tax.ohio.gov — Main Portal

Estimates use Ohio's 35% statutory assessment ratio and effective tax rate tiers averaged across major Ohio counties. Your actual bill depends on local school levies, voted millage, inside vs. outside millage splits, House Bill 920 reduction factors (HB 920), and special assessments. The 2026 Homestead general amount ($29,000) and enhanced amount ($58,000) reflect HB 187 inflation indexing — your county auditor's office may show slightly different transitional figures. Nothing here is legal or tax advice. CountyAuditors.org is an independent informational directory, not affiliated with any county government.

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