Knox County Auditor Property Search, Records & GIS

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Knox County, Ohio · Parcel, value, tax, deed and GIS help

Find Parcels, Values, Taxes & Maps

Search a Knox County property by owner, street address, parcel number or legal-description clue, then use the full record to review ownership, acreage, land use, market value, assessed value, sales, tax history and map information.

This guide also explains why a newly split parcel may be missing, how to route manufactured homes, where to verify delayed 2026 taxes, when to use Tax Map instead of the Recorder, and what evidence helps correct or challenge a property value.

Read the quick answer Follow search steps Fix a missing parcel
Do not rely on an owner name alone. Confirm the physical property address and parcel number before paying taxes, researching a deed, contacting an owner or making a legal or boundary decision.

Quick answer: where should you search?

Use the official Knox County Auditor Beacon search for real-estate parcels. Begin with one search method—owner, address, parcel number or legal description—open the likely record and confirm its address and parcel number. Use the Treasurer for tax payment, the Recorder for deeds and liens, and Tax Map & GIS for addresses, surveys, legal-description review and parcel-map questions.

1 Choose one identifier Surname, simple address or parcel ID.
2 Open the parcel Do not stop at the result list.
3 Verify two facts Address plus parcel number.
4 Use the right office Auditor, Treasurer, Recorder or GIS.
Real Estate

740-393-6745

Main Auditor line

740-393-6750

Office

117 E. High St., Suite 120
Mount Vernon, OH 43050

Public hours

Monday–Friday
8:00 a.m.–4:00 p.m.

Separate manufactured-home search: Call the Auditor’s Manufactured Homes division at 740-393-6805 when a titled manufactured or mobile home does not appear in the real-estate parcel search.
Knox County Ohio Auditor property search with owner, address, parcel number and legal description lookup options
Use the official Knox County Auditor real-estate search to find property records by owner, address, parcel number or legal description.
Use the screenshot above

Open the official portal in five steps

Choose the most reliable information Use a parcel number from a tax bill or deed when available. Otherwise start with the owner surname or simplified physical address.
Open the Knox County-linked Beacon portal Confirm that the application identifies Knox County, Ohio before searching.
Enter only one broad search value Too many uncertain fields can exclude a valid record.
Open the complete property result Confirm parcel number, address, owner display, acreage, land use and tax district.
Save the parcel number Use that same identifier for Treasurer, Recorder, GIS, correction and Board of Revision questions.
Open official Knox County property search Open the Auditor homepage

Choose the property task you need to finish

The guide is organized around actions—not a list of unexplained links.

Avoid the wrong department

Which Knox County office handles the request?

Best office or official tool for common property tasks
Your task
Correct office or tool
What it provides
Important limit
Find owner, parcel or value
Auditor / Beacon
Owner display, parcel facts, value, acreage, sales, taxes and map access.
The owner display is not a title opinion.
Pay or verify a tax bill
Treasurer
Due dates, online payment, phone payment, posting and delinquency help.
The Auditor does not collect the payment.
Find a deed, mortgage or lien
Recorder
Recorded documents, images, historical indexes and property alerts.
A public index is not a professional title search.
Find an address or review a legal description
Tax Map & GIS
Addresses, survey review, legal-description review, tax maps and GIS layers.
A GIS parcel line is not a boundary survey.
Correct wrong parcel or building facts
Auditor Property Data Correction
A formal way to identify and support factual corrections.
A correction request does not automatically change market value.
Challenge the market value
Board of Revision
DTE 1 complaint process, review and possible hearing.
The Board reviews value—not voter-approved tax rates.
Apply for tax relief
Auditor Forms
Owner occupancy, Homestead, CAUV and damaged-property forms.
Every program has separate eligibility rules.
Best workflow: Identify the parcel first, copy its parcel number, save the property record and use the parcel number in every later office call.
Local troubleshooting rules

No Knox County parcel result found?

Owner search failed Use the surname alone and try a previous owner, spouse, trust, estate or company.
Address search failed Keep the house number and main street word but remove the direction, suffix, unit and ZIP code.
Recent purchase is not updated Search the seller’s name and review the Recorder’s deed index.
New construction lacks an address Search the land parcel and contact Tax Map & GIS about address assignment.
Property is a manufactured home Use the separate manufactured-home search or call 740-393-6805.
Parcel was split late in the year Knox County’s November 30 cutoff can delay a December-recorded split until the next December cycle.
Parcel was combined or renumbered Search the parent parcel, adjoining parcels, prior owner and map location.
Owner requests a phone number The Auditor states that the office does not provide property owners’ phone numbers.
Knox County split timing: A split recorded from January 1 through November 30 should generally receive its own bill and web record during that year’s processing. A split recorded during December may not appear independently until December of the following year.

Information to prepare before calling

Complete property address
Current or former owner
Parcel number, if known
Approximate recording date
Deed or survey reference
Nearby road or intersection
Township, village or city
Screenshot of the failed result
Useful Real Estate call script “I am trying to identify the parcel at [address or location]. The current or former owner may be [name], and I have [parcel, deed, survey or nearby-road information]. Can you confirm whether it was transferred, split, combined, renumbered or placed in a separate search?”
Call Real Estate: 740-393-6745 Email the Auditor
Property-record decoder

Understand the Knox County property report

Common property fields and the correct next action
Field or section
What it means
What to verify next
Parcel number
The county identifier for the parcel.
Use it across Auditor, Treasurer, Recorder and GIS research.
Owner
The ownership name currently displayed for tax administration.
Use the recorded deed when legal ownership proof is required.
Property address
The assigned physical location of the parcel.
Contact Tax Map & GIS when a new address is needed.
Acreage
The land area associated with the tax parcel.
Use the deed or survey when exact land dimensions matter.
Market value
The Auditor’s estimate of open-market value.
Review property facts, condition and relevant recent sales.
Assessed value
Generally 35% of market value in Ohio.
Do not multiply it by another parcel’s tax rate.
Land and improvement values
The portions of total value assigned to land and buildings.
Check acreage, land use, structures, area and condition.
Sale or transfer
The transaction information associated with the parcel.
Determine whether it was an arm’s-length sale, gift or other transfer.
Tax tab
Current tax, special assessment and payment-history information.
Use the Treasurer for live payment and delinquency confirmation.
Map link
Visual parcel location and nearby map context.
Use a recorded survey or plat for exact boundary work.

Market value, assessed value and taxes are not the same

Market value

An estimate of the price a knowledgeable buyer may pay in an arm’s-length sale.

Assessed value

Generally 35% of market value for Ohio real-estate taxation.

Tax bill

Also reflects effective rates, reduction factors, credits, levies and special assessments.

Example: A property with a $240,000 market value would generally have an $84,000 assessed value before applying the parcel’s effective rates, credits and assessments.

Why the value may change

  • Ohio requires a countywide reappraisal every six years.
  • A percentage update occurs during the third year between reappraisals.
  • New construction, demolition, additions, land splits and corrections can change an individual parcel.
  • A Board of Revision decision can change the value after a formal complaint.
Read Knox County appraisal guidance Open tax rates and county values
Current 2026 payment guidance

Verify Knox County tax dates before paying

First-half real estate February 13, 2026

Past deadline.

Newer second-half notice August 26, 2026

Auditor homepage date.

Electronic check $1 fee

Published processor charge.

Credit card 2.35%

Published processor charge.

Official date conflict: A newer Knox County Auditor notice says second-half bills were delayed for an HB 186 recalculation and lists August 26, 2026. The older Treasurer page still displays July 10, 2026. Use the date printed on the current bill or call the Treasurer at 740-393-6735 before paying.

Online payment steps

Find and verify the parcel first Copy the parcel number and confirm the address.
Check mortgage escrow Contact the lender before making a payment that may already be scheduled.
Open the official Treasurer page Use the county’s iPayments by Autoagent link rather than an advertisement.
Match the parcel again Confirm the parcel number, owner display, tax period and balance.
Compare payment fees The Treasurer lists a $1 electronic-check fee and a 2.35% credit-card fee.
Save proof Keep the confirmation number, date, amount, fee and parcel number.
Recheck payment history Confirm posting under the property record’s Tax or Payment History section.

Other official payment information

Knox County Treasurer payment details
Method
Official information
Practical warning
Phone payment
Call 740-638-0048.
Save the confirmation and verify the parcel before authorizing payment.
Processor support
Autoagent support: 877-932-8478.
Use for portal problems—not property-value disputes.
Mail
Knox County Treasurer, 117 E. High St., Suite 103, Mount Vernon, OH 43050.
Mail early and retain proof of timely mailing.
In person
Monday–Friday, 8:00 a.m.–4:00 p.m.
Check holidays before traveling.

Manufactured-home dates are separate

First half

March 6, 2026

Second half

August 7, 2026

Treasurer call script “I am calling about parcel [parcel number] at [address]. The Auditor notice and Treasurer page show different second-half dates. Can you confirm the controlling due date, current balance, payment fee and whether a payment has posted?”
Open the official Treasurer page Call Treasurer: 740-393-6735
Tax Map, GIS and address help

Use maps, surveys and legal descriptions correctly

Knox County Tax Map & GIS reviews survey drawings and legal descriptions, maintains map resources and assigns property addresses throughout the county, including Mount Vernon and the villages.

Use the online map in six steps

Copy the parcel number Identify the parcel in the property search before opening the map.
Open the official Knox County GIS viewer Search by parcel, owner or address where supported.
Zoom to parcel level Some lines, labels and map layers remain hidden at countywide scale.
Compare parcel and aerial layers Use aerial imagery for visual context, not legal measurement.
Check surveys and plats Use recorded or county-reviewed documents when exact boundaries matter.
Contact Tax Map for conflicts Prepare the parcel number, deed, survey and description of the discrepancy.

Which source answers the question?

Map, survey and address decision guide
Your question
Best source
Why
Where is the parcel?
GIS viewer
Shows approximate parcel location, roads, aerials and nearby property.
Where is the exact boundary?
Recorded survey or plat
GIS lines are not survey monuments or legal measurements.
Does a deed description meet county standards?
Tax Map & GIS
The department reviews legal descriptions on property-transfer documents.
How do I obtain a new house number?
Tax Map address process
The department assigns addresses throughout Knox County.
Where is a subdivision plat?
Recorder
Recorded plats are part of the county’s official land records.
New-address requirement: Knox County says the property must be in the applicant’s name and an approved access-management or driveway permit must exist before a house number can be assigned.
Boundary warning: Never place a fence, driveway, building, septic component or utility using only the online parcel line. Obtain the recorded deed, plat or survey and appropriate professional help.
Tax Map & GIS

117 E. High St., Suite 131
Mount Vernon, OH 43050

GIS Supervisor

740-393-6754

GIS Technician

740-393-6752

Open the official GIS viewer Open Tax Map & GIS guidance
Recorded-document research

Find deeds, mortgages, liens and plats

Use the Recorder when you need an actual recorded instrument. The Auditor property record can provide useful ownership and transfer clues, but it does not replace the deed or a title examination.

Search Recorder records step by step

Copy clues from the parcel record Save the owner, former owner, parcel number, transfer date and legal-description clue.
Open the Recorder’s official records page Choose the modern search or historical resources based on the recording date.
Search spelling variations The Recorder specifically recommends trying all possible name spellings.
Search both transfer directions Review grantor and grantee names when available.
Narrow by date and document type Use deed, mortgage, lien, release, easement, affidavit or plat.
Verify the document Compare names, recording date, legal description and parcel clues.

Published Recorder coverage

September 1981 to present

Use the Recorder’s current public image-search resource.

Before September 1981

Use the separate earlier-record and historical-index resources.

Free property alert: The Recorder offers iNotify. Open the September 1981–present records search and create an iNotify account to monitor selected recorded-name activity.
Verification warning: The Recorder states that the user remains responsible for verifying information and recommends searching all possible spelling variations. Public records research is not a substitute for a professional title search.
Recorder office

117 E. High St., Suite 114
Mount Vernon, OH 43050

Phone

740-393-6755

Hours

Monday–Friday
8:00 a.m.–4:00 p.m.

Open Recorder records and office resources
Fix factual errors first

Correct incorrect property information

Before filing a valuation complaint, determine whether the problem is a factual property-data error. Knox County publishes a fillable Property Data Correction Form.

Check these facts

Property address
Owner mailing address
Land acreage
Property class or use
Building area
Year built
Condition and grade
Garage and outbuildings
Demolished structures
Agricultural-use information

Submit a useful correction request

Open the current property record Mark the exact field that appears wrong.
Collect evidence Use measurements, photographs, permits, demolition records, deed pages or surveys.
Download the Property Data Correction Form Use the current version from the Auditor’s Forms page.
Describe the requested correction State the current entry, the correct fact and the attached proof.
Contact Real Estate when an inspection may be needed Call 740-393-6745 and keep a copy of everything submitted.
Recheck the record Confirm whether the factual correction and any related value review were completed.

Destroyed or damaged property

Real property

Use DTE 26. Knox County says the deduction percentage depends on the calendar quarter in which the damage occurred.

Manufactured home

Use DTE 49. The county says the deduction percentage depends on the calendar half in which the damage occurred.

Open Property Data Correction and tax forms Call exemption and farm help: 740-393-6748
Board of Revision action plan

Challenge an incorrect property value

The Knox County Board of Revision considers residential and commercial valuation complaints. File only after checking whether the issue is incorrect parcel data, a recent sale, physical condition or comparable-market evidence.

Prepare evidence before filing

Current property record
Recent arm’s-length sale documents
Independent appraisal
Comparable parcel addresses
Labeled photographs
Repair estimates
Inspection or damage reports
Proof of incorrect property facts

File the complaint correctly

Review and correct property facts Use the correction process first when the record itself is wrong.
Use the current DTE 1 Download it from the Auditor’s Forms or Board of Revision page.
State the requested value Explain how your evidence supports that number.
Attach organized evidence Label photographs and identify comparable parcels clearly.
File between January 1 and March 31 The county lists March 31 as the annual final filing date.
Keep proof of filing Retain the form, evidence and delivery confirmation.
Watch for a decision or hearing notice The Board may decide from the submission or schedule a formal hearing.
Important: A complaint does not guarantee a lower value. The Board reviews the evidence and may change or retain the valuation.
Board of Revision call script “I am reviewing parcel [parcel number]. I believe the market value is incorrect because [sale, appraisal, condition, comparable evidence or factual error]. Can you confirm the correct DTE 1, tax year, filing method and March 31 deadline?”
Open Board of Revision guidance Download the current DTE 1
Credits, exemptions and farmland

Check owner occupancy, Homestead and CAUV

Knox County property-tax relief programs
Program
Main purpose
Important qualification clue
Action
Owner-Occupancy Reduction
Provides a 2.5% reduction for a qualifying owner-occupied home.
Own and occupy the home as the principal residence on January 1.
File the current DTE 105C application.
Homestead Exemption
Provides additional relief for eligible homeowners.
Age, disability, income, veteran or surviving-spouse rules may apply.
Use the correct Homestead form and current income guidance.
CAUV
Values qualifying agricultural land according to agricultural use.
Generally 10 acres or more, or the smaller-tract income route.
File DTE 109 initially and DTE 109A for renewal.
Damaged-property deduction
Requests value relief after qualifying damage or destruction.
Timing and property type affect the available deduction.
Use DTE 26 or DTE 49.

Owner-Occupancy Reduction

  • The owner must occupy the home as the principal residence on January 1.
  • A homeowner and spouse may receive the reduction on only one Ohio home.
  • The calculation applies to the dwelling and up to one acre of land.
  • Knox County accepts applications from January 1 through December 31.
  • A first-time approval generally appears on tax bills received the following year.

Homestead Exemption

Homestead is separate from owner occupancy. It may help qualifying senior citizens, permanently and totally disabled homeowners, qualifying disabled veterans and certain surviving spouses. Verify the current household-income limit and required documentation before filing.

Moving to another home: Knox County instructs homeowners to file a new application for the replacement home after living in it through January 1 of the new year.

CAUV agricultural valuation

Ten acres or more

Land devoted exclusively to qualifying agricultural use may qualify for CAUV treatment.

Less than ten acres

The average annual gross farm income for the previous three years must generally be at least $2,500.

Do not miss renewal or transfer forms. The Forms page includes DTE 109 for initial CAUV, DTE 109A for renewal and DTE 102 for conveyance of CAUV property. Call the Farm Program at 740-393-6748 for the current filing deadline and documentation.
Open current Auditor forms Review owner occupancy Review Homestead guidance Review CAUV information
Deeds, conveyance and parcel changes

Handle transfers, splits and legal descriptions

Auditor staff can assist with transferring an already prepared document, but the office cannot prepare deeds or provide legal advice. A legal document must be transferred and recorded to change the ownership record.

Prepare the deed and legal description Use an attorney or qualified professional when document preparation or legal advice is needed.
Prepare the applicable conveyance form Use DTE 100, DTE 100EX or another relevant form.
Complete Tax Map review when required New descriptions, splits and survey drawings may need review before transfer.
Submit through the Auditor The Auditor processes the conveyance and applies the county transfer requirements.
Record the document The Recorder places the accepted instrument into the official land records.
Recheck public systems later Owner names, parcel records and tax bills may update on different schedules.
Published conveyance fee

$3 per $1,000 of the sale price.

Auditor fee payment

The Auditor states that office fees are currently payable by cash or check rather than credit card.

Prepare for a parcel split

Existing parcel number
Current deed
Survey drawing
Proposed legal description
Applicable transfer forms
Tax Map review
Closing or attorney contact
Expected recording date
November 30 cutoff: Complete time-sensitive splits early. A December recording may delay the separate online record and tax bill until the following December.
Review transfer and split FAQs Review Tax Map transfer standards
Phones, addresses and visit planning

Knox County property office contacts

Contact the office that can finish the task
Office
Use it for
Contact
Address and hours
Auditor
Property search, value, corrections, exemptions, CAUV, conveyance and Board of Revision.
Real Estate: 740-393-6745
Main: 740-393-6750
auditor@knoxcounty.oh.gov
117 E. High St., Suite 120, Mount Vernon, OH 43050
Monday–Friday, 8:00 a.m.–4:00 p.m.
Treasurer
Tax bills, due dates, payments, posting and delinquency.
740-393-6735
Fax: 740-397-3153
117 E. High St., Suite 103, Mount Vernon, OH 43050
Monday–Friday, 8:00 a.m.–4:00 p.m.
Recorder
Deeds, mortgages, liens, plats, images and historical indexes.
740-393-6755
117 E. High St., Suite 114, Mount Vernon, OH 43050
Monday–Friday, 8:00 a.m.–4:00 p.m.
Tax Map & GIS
Maps, surveys, legal descriptions, parcel research and new addresses.
Supervisor: 740-393-6754
Technician: 740-393-6752
117 E. High St., Suite 131, Mount Vernon, OH 43050
Monday–Friday, 8:00 a.m.–4:00 p.m.

Bring or include this information

Parcel number
Physical property address
Owner name
Relevant tax year
Deed or survey reference
Form name
Screenshot or evidence
One-sentence description of the problem
One script for any property office “I am contacting you about parcel [parcel number] at [address]. I need help with [search, value, tax, deed, map, address, correction, exemption or transfer]. The public record currently shows [brief fact]. Which office, form or next action should I use?”
Nearby property guides

Could the parcel be in a neighboring county?

A mailing address or nearby road may cross county boundaries. Confirm the county before repeating the same Knox County search.

Licking County

Useful for parcels south of Knox County near Utica, Newark-area routes and the county line.

Open the Licking County property-search guide
Richland County

Useful for parcels north of Knox County near Bellville, Butler and Mansfield-area records.

Open the Richland County property-search guide
Delaware County

Useful for parcels west of Knox County near Sunbury, Centerburg-area routes and the county line.

Open the Delaware County property-search guide
Important record limitations

What the online property record cannot prove

Online records are useful for
  • Finding a parcel and owner display
  • Reviewing values, acreage and tax history
  • Locating map and recorded-document clues
  • Preparing questions, corrections and forms
  • Comparing nearby parcels and sales
Get additional verification for
  • Legal ownership or marketable title
  • Exact property boundaries
  • Recorded easements or restrictions
  • Construction, access or zoning approval
  • Purchase, lending or legal decisions
Responsible-use warning: Do not contact an employer, publish an accusation, send money or make a legal conclusion from a same-name owner result alone. Verify the parcel and use public records lawfully.
Ten practical answers

Knox County property search FAQs

What is the official Knox County Ohio property search?

Use the Knox County Auditor’s official Beacon Real Estate Search. It supports property research by owner, address, parcel number and other available parcel criteria.

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

Start with the owner’s surname only. Add a first name or initial only if the result list is too broad, then verify the property using its physical address and parcel number.

Why is a new Knox County parcel split not appearing online?

Knox County uses a November 30 split cutoff. A split recorded during December may not receive a separate tax bill or appear as its own online parcel until December of the following year.

What is the difference between market value and assessed value?

Market value is the Auditor’s estimate of open-market property value. Ohio assessed value is generally 35 percent of market value and is used with applicable tax rates, reduction factors, credits and special assessments.

When are Knox County property taxes due in 2026?

First-half real-estate taxes were due February 13, 2026. A newer Knox County Auditor notice lists the delayed second-half deadline as August 26, 2026 because of an HB 186 recalculation, although an older Treasurer page still displays July 10. Verify the mailed bill or call the Treasurer before paying.

Are Knox County GIS parcel lines legal boundaries?

No. GIS lines help locate parcels and compare map layers but do not replace a recorded deed, subdivision plat or boundary survey.

Where can I search Knox County deeds and mortgages?

Use the Knox County Recorder’s official records resources. The Recorder provides a public image search for records from September 1981 to the present and separate resources for earlier records.

How do I correct incorrect Knox County property information?

Download the Auditor’s Property Data Correction Form, identify the parcel and incorrect field, attach useful supporting evidence and contact the Real Estate division if an inspection or additional documentation is required.

How do I challenge a Knox County property value?

File the current DTE 1 complaint with the Knox County Board of Revision between January 1 and March 31. Review the property facts first and include useful value evidence.

What is the difference between Homestead, owner occupancy and CAUV?

Owner occupancy provides a reduction for a qualifying primary residence, Homestead provides additional relief for eligible homeowners, and CAUV values qualifying agricultural land according to agricultural use rather than ordinary market value.

Facts checked July 21, 2026: Property-search tools, contact information, 2026 due-date notices, payment fees, parcel-split rules, GIS responsibilities, address requirements, Recorder coverage, correction forms, Board of Revision procedures, owner-occupancy rules and CAUV guidance were checked against Knox County’s official websites. Verify the current bill or responsible office before a payment, filing or visit.
Independent guide: CountyAuditors.org is not the Knox County Auditor, Treasurer, Recorder, Tax Map Department or Board of Revision. Live ownership, value, payment, filing, map and document information is controlled by the responsible government office. Online property and GIS records should not replace legal, title, surveying, lending, tax or professional 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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