Delaware County Auditor Property Search: Records & GIS Maps

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Delaware County, Ohio · Parcel, tax, plat, survey and deed help

Find Property Records, GIS Maps & Surveys

Search Delaware County property records by owner name, street address or parcel number, then review valuation, ownership, tax, building, transfer and map information connected with the parcel.

This guide shows what to type, how to fix a failed search, how to locate subdivision plats and survey PDFs, which tax dates and payment fees apply in 2026, and when to contact the Auditor, GIS Office, Treasurer, Recorder or Board of Revision.

Read the quick answer See search steps Fix a failed search
Verify the parcel before using the record. Match the property address and parcel number—not only the owner name. Auditor and GIS information is useful for research but does not replace a recorded deed, plat or professional boundary survey.

Quick answer: use three official search methods

Use the Delaware County Auditor’s official Owner Search, Address Search or Parcel Number Search to identify a property. Use the Auditor GIS only after finding the correct parcel, then use the Treasurer for payment status and the Recorder for deeds, mortgages, liens and recorded plats.

1 Choose one search type Owner, address or parcel number.
2 Use the official format Remove extra address details and parcel separators.
3 Verify the property Match its address and parcel ID.
4 Move to the right office GIS, Treasurer, Recorder or BOR.
Auditor

740-833-2900

auditor@co.delaware.oh.us

Office address
145 N. Union Street
First Floor
Delaware, OH 43015
Auditor hours

Monday–Friday

8:30 a.m.–4:30 p.m.

After understanding the search rules above, use the official real-estate search page. It connects the owner, address, parcel-number, GIS and tax-estimator tools in one county-authorized system.

Open official property-search choices Open current Auditor GIS map
Delaware County Ohio Auditor GIS property search with parcel map and search tools
Use the official Delaware County Auditor GIS map to locate a parcel, review nearby properties and connect the map with appraisal and tax information.
What to do on the screen above: Start with one owner, address or parcel search, select the matching parcel, verify the address and then open map layers only for the specific record you need.

Choose the Delaware County property task

Each section below solves a specific problem rather than sending users through a directory of links.

Avoid the wrong portal

Which Delaware County office handles your task?

Correct office or tool for common property questions
Your task
Correct office or tool
What it provides
Important limit
Find an owner, address, parcel or value
Auditor Property Search
Owner, address, parcel, appraisal, tax and transfer information.
The owner display is not a title opinion.
View parcel location or map layers
Auditor GIS
Parcel map, appraisal links, subdivisions, survey points and geographic context.
GIS lines are not a legal survey.
Find a recorded plat or survey
GIS / Plat and Survey Finder / Recorder
Subdivision layers, survey-point PDFs and recorded plat documents.
Not every visible parcel line has a separate modern survey.
Check or pay a tax bill
Treasurer
Current bills, payment methods, fees, escrow and prior-payment history.
The Auditor does not post tax payments.
Find a deed, mortgage or lien
Recorder
Recorded documents, indexes, images and certified copies.
The search is not a complete title examination.
Challenge market value
Board of Revision
DTE 1 complaint, hearing, evidence review and decision.
The Board cannot change tax rates or CAUV calculations.
Apply for tax reductions
Auditor
Homestead, owner occupancy, CAUV and damaged-property forms.
Each program has separate eligibility and filing requirements.
Best workflow: Find the property first, save the parcel number, and use that same identifier for GIS, taxes, deeds, survey research, forms and office calls.
Troubleshooting order

No Delaware County property result found?

Owner search returned nothing Use the last name only. Try a former surname, trust, estate, LLC or business name.
Address search failed Remove the direction, street suffix, unit number and punctuation.
Parcel number failed Remove spaces and dashes, then try a shorter partial entry.
The property recently transferred Search the former owner and check the Recorder’s deed index.
The parcel was split or combined Search nearby parcels in the current GIS and contact GIS for the active parcel number.
The address uses another postal city Verify the actual municipality, township and taxing district.
The GIS page does not load Clear old browser cookies and history, then confirm the site is allowed through the network firewall.
The replacement GIS looks incomplete Return to the existing Auditor GIS for recent geometry changes.

Prepare this before calling

Complete property address
Current or prior owner name
Full or partial parcel number
Township or municipality
Nearby intersection
Approximate transfer date
Old and new parcel numbers
Screenshot of the failed search
Auditor or GIS call script “I am trying to identify the active parcel at [address] in [township or municipality]. The current or former owner may be [name], and I have [full or partial parcel number]. Can you confirm whether the parcel was transferred, split, combined or renumbered?”
Call Auditor: 740-833-2900 Call GIS: 740-833-2070
Property-report decoder

Understand appraisal, transfer and tax fields

Common Delaware County property fields explained
Field
What it means
Practical next action
Parcel number
The identifier assigned to the property record.
Use it for GIS, tax, deed, survey and office questions.
Owner
The ownership name displayed in the Auditor database.
Use the recorded deed when legal ownership proof is required.
Market value
The Auditor’s estimate of open-market property value.
Review physical facts and valid recent sales before challenging it.
Assessed value
Ohio’s taxable value, generally 35% of market value.
Use the correct tax district and effective rate.
Tax district
The combination of local taxing authorities affecting the parcel.
Use it in the tax estimator and when comparing other properties.
Legal description
An abbreviated property-description field.
Use the recorded deed or plat for legal work.
Transfer history
Prior ownership changes, dates and sale information.
Check the Recorder before treating every transfer as a market sale.
Building information
Structure age, area, condition and improvements used in appraisal.
Document material errors with photos, measurements or permits.
Tax detail
Tax liability, charges and applicable history.
Use the Treasurer for current payment and posting status.
Special assessments
Charges that may be added separately from ordinary property tax.
Do not assume the tax estimator includes them.

Check property facts before disputing value

Review these fields
  • Living area and building footprint
  • Year built and condition
  • Basement and finished area
  • Garage, barn and other improvements
  • Land acreage and property use
Collect this evidence
  • Current photographs
  • Measurements or floor plans
  • Demolition or permit records
  • Repair estimates
  • Recorded survey or deed
Comparison warning: A nearby home may be in a different township, municipality, school district, New Community Authority or tax district. Compare district and property characteristics before using another parcel as a tax or value comparison.
Current GIS transition

Use the current and replacement GIS correctly

Delaware County is replacing its Auditor GIS website and maintaining both systems during the transition. The county warns that its replacement parcel-geometry database may not yet include all parcel-shape changes made since September.

Recent parcel-change warning: For a recent split, combination, annexation or boundary update, check the existing Auditor GIS and contact GIS before relying on the replacement map.

Open and use the existing GIS

Find the parcel number first Search the Auditor database and copy the property’s parcel number.
Open the current GIS application Use the county’s existing mapping website while the transition continues.
Search the property Use owner, address or parcel search based on the information available.
Select the matching parcel Confirm the address and surrounding roads before turning on layers.
Use map layers for context Review subdivisions, survey points, political boundaries and other available layers.
Verify recent changes Call GIS when the current and replacement maps disagree.

If the GIS will not open

Clear old cookies and browser history The county says older saved site information can prevent the HTTPS version from loading.
Check network firewall access Ask an IT administrator to allow auditor.delco-gis.org when using a business or institutional network.
Try a current browser Use an updated Chrome, Edge, Firefox or Safari version with JavaScript enabled.
Report the specific issue Include the parcel number, browser, error message and screenshot in the email.
GIS phone

740-833-2070

GIS email

delco-gis@co.delaware.oh.us

GIS hours

Monday–Friday

8:30 a.m.–4:30 p.m.

Open current Auditor GIS Read GIS transition updates
Subdivision and survey workflow

Find a plat or recorded survey PDF

Delaware County provides two useful routes: turn on subdivision or survey layers in the Auditor GIS, or use the separate Plat and Survey Finder.

Find a subdivision plat

Open the Layers menu Locate the layer controls in the Auditor GIS.
Expand Boundaries Select the plus sign next to the Boundaries category.
Turn on Subdivisions Select the checkbox for the subdivision layer and close the layer panel.
Search and select the parcel Zoom to the property and identify the subdivision name or boundary.
Use the Recorder for the recorded plat Search the subdivision name or contact the Recorder for the official document.

Find a survey point and PDF

Turn on Survey Points In Layers, expand the appropriate category and enable the Survey Points layer.
Select the parcel Search by one of the three property-search methods and allow the map to zoom in.
Look for the yellow S symbol A survey on or near the parcel may appear as a yellow point containing the letter S.
Click the survey symbol The pop-up may initially show parcel information and indicate multiple results.
Move to the survey result Use the arrow in the pop-up to switch from the parcel result to the survey record.
Open the Link field The survey link opens a PDF that can be viewed, downloaded or printed.
Boundary warning: A survey PDF, subdivision plat and GIS line answer different questions. Use a licensed surveyor when the exact location of a boundary, encroachment, fence, easement or construction line matters.

After identifying the parcel and turning on the relevant layers, use the county’s GIS FAQ for the exact map workflow or contact the Recorder for the official recorded document.

Open official GIS survey instructions Search recorded plats and documents
Current 2026 tax help

Check tax bills, dates, fees and prior payments

The Delaware County Treasurer collects property taxes but does not determine the property’s market value. First identify the parcel through the Auditor, then use the Treasurer’s payment system.

First-half deadline February 10, 2026

Past deadline.

Second-half deadline August 17, 2026

Extended for 2026 only.

Bill mailing Last week of July

Current county estimate.

Semiannual ACH August 1, 2026

Changed from the normal July 1 date.

Payment methods and processor fees

Delaware County tax-payment options
Method
Current published fee
What to prepare
Practical warning
Credit card
2.30% of the transaction; $2 minimum transaction requirement.
Parcel, bill and card information.
Compare the fee with e-check before paying a large bill.
Debit card
$3.95 flat fee per transaction.
Parcel information and eligible debit card.
The flat fee is charged by Point & Pay, not the county.
E-check
$0.85 flat fee per transaction.
Bank routing and account numbers.
Check every bank digit before submission.
Phone payment
Processor fees apply; call 1-888-891-6064.
Parcel, amount and payment method.
Save the confirmation number.
Monthly escrow
Use the Treasurer’s Escrow Agreement.
Bank information and enrollment form.
This pre-pays future collection periods; verify the withdrawal schedule.
In person
145 N. Union St., First Floor.
Bill, parcel ID and accepted payment.
Office hours are 8:30 a.m.–4:30 p.m., excluding holidays.

Micro steps to pay the correct property

Search the parcel through the Auditor Confirm the address, parcel number and owner display.
Open the Tax tab The Treasurer says prior-payment history appears near the bottom of the Tax Detail screen.
Check mortgage escrow Avoid paying a balance already scheduled by the lender.
Open the Treasurer’s payment page Choose card, e-check, phone or escrow only after verifying the property.
Review the convenience fee E-check currently has the lowest published online processor charge.
Save proof Keep the parcel number, amount, date, payment method and confirmation.
Check posting Return to the Tax Detail screen or call the Treasurer if the payment remains unclear.
Treasurer call script “I am calling about parcel [parcel number] at [property address]. I need to confirm the current balance, whether an escrow or online payment has posted, and the correct second-half 2026 deadline and payment method.”
Review official payment methods Open the Treasurer tax portal Call Treasurer: 740-833-2480
Estimate carefully

Use the Delaware County tax estimator

The tax estimator is designed to estimate property taxes and proposed-levy impacts. It is not a replacement for the official tax bill.

Open the property’s General Information Copy the current market value used by the Auditor.
Select the correct tax district Use the property record rather than guessing from a mailing city.
Or choose the school district Confirm that the selected district matches the parcel.
Enter the market value Use the Auditor’s value rather than a listing price or online home estimate.
Select owner-occupied or commercial status Apply only the options that accurately describe the property.
Review estimated annual tax and levies Proposed-levy changes may need to be added to the displayed estimated annual tax.
Estimator limits: The official calculator says its result does not include special assessments, Homestead reductions or certain tax-rate adjustments, including the state’s 20-mill floor guarantee. Use it for planning—not as a payment amount.
Open the official tax estimator
Recorded-document research

Find deeds, mortgages, liens and plats

The Recorder indexes Delaware County deeds, mortgages, IRS liens, mechanics liens, land contracts, plats, zoning resolutions and other real-estate instruments.

Search official records step by step

Copy clues from the Auditor record Save the owner name, former owner, transfer date and parcel number.
Open the Recorder search Accept the search disclaimer and use the public-access system.
Search all possible spelling variations The Recorder specifically recommends testing alternate spellings of proper names.
Use the correct index direction Search a deed by grantor or grantee and a mortgage by mortgagor or mortgagee.
Use official name formats Enter a person last name first and first name last. Use the full business name.
Narrow with date or document type Separate same-name records using the approximate recording date or instrument type.
Open or order the document Ask whether the receiving agency needs a plain or certified copy.

Useful Recorder search formats

Name and record-search examples
Record or party
Recommended search
Practical note
Person
Last name first, first name last.
Try initials and spelling variations.
Business
Enter the full business name.
A numbered business may use the prefix NUMBER-.
Church
Use CH- followed by the church name.
Test common abbreviated and full names.
School
Use SCH- followed by the school name.
Search the district or entity name when needed.
Deed
Grantor and grantee.
Use the Auditor transfer date to narrow results.
Mortgage
Mortgagor and mortgagee.
Search releases and assignments separately.

Current Recorder fees and hours

Standard recording fee

$39 for the first two pages.

$8 for each additional page.

Copies

Photocopies: $2 per page.

Certified: $2 per page plus $2 certification.

Recording hours

8:30 a.m.–4:30 p.m.

Document cutoff: 4:00 p.m.

Property-fraud alert: The Recorder offers AlertMe, a voluntary notification service that can alert subscribers when a document containing their registered name is recorded.
Delivery warning: The Recorder warns that third-party carrier tracking may show a staff signature even when a package was left elsewhere in the building. Confirm receipt of time-sensitive recording packages.
Open Recorded Document Search Check current Recorder fees Review AlertMe fraud alerts
Board of Revision workflow

Challenge an incorrect property value

Current filing status: The Delaware County tax-year 2025 complaint period ended March 31, 2026. The next normal annual window is expected to run January 2 through March 31, 2027; verify the updated county page before filing.

The Board of Revision reviews property value as of the January 1 tax-lien date. It does not hear complaints about tax rates, total tax amounts or CAUV soil-value calculations.

Evidence the county says may help

Recent independent fee appraisal
Interior and exterior condition photos
Closing statement
Purchase contract
Comparable arm’s-length sales
Income and expense statements
Proof of incorrect property facts
Parcel ID and requested value
Evidence warning: The Board says it cannot reduce value simply because neighboring properties have lower Auditor values or a lower cost per square foot when those properties did not have arm’s-length sales.

How to file during an open period

Review the property record Confirm the value year, building facts, land and transfer history.
Complete the current DTE 1 State the present value, requested value and factual basis.
Sign the complaint A missing signature can cause dismissal after the filing deadline.
Attach supporting documents Organize evidence so each item clearly supports the requested value.
Submit by the deadline File in person, by mail, email or fax using the county’s current instructions.
Prepare for the hearing BOR hearings operate similarly to court proceedings and may include testimony, exhibits and a court reporter.

Current filing contacts

Email

auditor@co.delaware.oh.us

Fax

740-833-2899

Mail or deliver
145 N. Union Street
First Floor
Delaware, OH 43015

After the decision

  • Decisions are held for 30 days while an appeal may be filed.
  • An appeal may be made to the Ohio Board of Tax Appeals or Delaware County Court of Common Pleas.
  • The appeal generally must be filed within 30 days of the decision letter.
  • If no appeal is filed, approved value changes are applied and an applicable refund or credit is processed.
Value-review call script “I reviewed parcel [parcel number] and believe the value is incorrect because [recent sale, factual error, damage or appraisal evidence]. Can you confirm the next filing period, current DTE 1 and the best evidence to submit?”
Open Board of Revision information Open the DTE 1 form page
Credits, farmland and damage

Check Homestead, owner occupancy and CAUV

Common property-tax reduction programs
Program
Main purpose
Important eligibility clue
Form or action
Homestead Exemption
Reduces taxes for qualifying senior or disabled homeowners.
Generally age 65 by December 31 or permanent and total disability, primary residence and applicable income rules.
Use DTE 105A, DTE 105E, DTE 105I, DTE 105G or another applicable form.
Owner Occupancy Credit
Additional reduction for a qualifying principal residence.
The property must be the owner’s primary residence.
Use DTE 105C.
CAUV
Values qualifying agricultural land according to current agricultural use.
Commercial agricultural use and annual program compliance.
Use DTE 109 for initial filing and DTE 109A for renewal.
Damaged Property
Requests a value reduction after qualifying damage or destruction.
Material damage during the applicable period.
Use DTE 26 and include supporting evidence.

Homestead preparation checklist

Proof of age or disability
Photo identification
Proof the home is the primary residence
Applicant and spouse income information
Parcel number
Prior Ohio Homestead proof, if portable status applies
Portable Homestead: A person who received the Ohio Homestead Exemption for tax year 2013 may remain exempt from the income test after moving to another Ohio residence when the required proof and DTE 105G are provided.

CAUV and farmland records

CAUV is based on agricultural use and soil-value information rather than ordinary development-market value. Use the county’s CAUV page for soil-value resources and current forms, then contact the Auditor before changing agricultural use or transferring enrolled land.

Rental-property registration

Delaware County provides a residential rental-registration form requesting the parcel ID, rental address, number of units and an individual Ohio contact. Optional rent information is collected for mass-appraisal analysis but is not required under the form’s stated instructions.

Rental contact rule: The form requires the main contact to be an individual rather than only a business entity and requires an Ohio contact address.

After identifying the appropriate program, use the county forms page rather than an old saved PDF or a form from another county.

Open all current Auditor forms Review Homestead information Review CAUV values and resources Open rental-registration help
Transfers, splits and legal descriptions

Prepare for a deed transfer or parcel change

Simple ownership transfer Prepare the deed, applicable DTE 100 or DTE 100EX and current parcel information.
Homestead property transfer Check whether DTE 101 or other Homestead information is required.
CAUV property transfer Review DTE 102 and continued agricultural-use requirements.
Parcel split or combination Prepare the existing parcel numbers, survey, legal description and combination application.
Subdivision or plat issue Locate the recorded plat and contact GIS or Recorder before preparing a new description.
Tax mailing-address change Submit the written Treasurer form with the parcel ID, old address, new address and signature.
Legal-description warning: Do not copy a legal description from an online GIS screen. Use the recorded deed, approved plat or description prepared and reviewed for the transaction.
Transfer call script “I am preparing a transfer involving parcel [parcel number]. The transaction includes [sale, exemption, Homestead, CAUV, split or combination]. Can you confirm the required DTE forms, survey or legal-description review and the order for Auditor and Recorder processing?”
Phone, email, hours and map

Delaware County property contacts

Contact the office that controls the next action
Office
Use it for
Contact
Hours and location
Auditor
Property search, values, Homestead, owner occupancy, CAUV, forms and BOR.
740-833-2900
Fax: 740-833-2899
auditor@co.delaware.oh.us
145 N. Union St., First Floor
8:30 a.m.–4:30 p.m.
GIS
Auditor map, parcel geometry, layers, subdivision plats and survey points.
740-833-2070
Fax: 740-833-2069
delco-gis@co.delaware.oh.us
145 N. Union St.
8:30 a.m.–4:30 p.m.
Treasurer
Tax bills, payments, payment posting, escrow and prior tax history.
740-833-2480
Fax: 740-833-2479
treasurer@co.delaware.oh.us
145 N. Union St., First Floor
8:30 a.m.–4:30 p.m.
Recorder
Deeds, mortgages, liens, plats, copies and Property Alert.
740-833-2460
Fax: 740-833-2459
145 N. Union St.
8:30 a.m.–4:30 p.m.
Submission cutoff: 4:00 p.m.

Bring or include this information

Parcel number
Property address
Township or municipality
Owner name
Tax year
Deed or instrument details
Survey or plat reference
Short factual description of the issue
One call script for most property issues “I am calling about parcel [parcel number] at [address] in [township or municipality]. I need help with [property search, value, tax bill, map, survey, deed, exemption or transfer]. Which office, form or official record should I use next?”
Nearby county property searches

Check a neighboring county when the location is unclear

Delaware County includes addresses connected with Delaware, Columbus, Dublin, Powell, Sunbury and Westerville. Confirm the county before repeatedly searching a parcel near a boundary.

Franklin County

Useful for Columbus, Dublin and Westerville-area parcels near Delaware County’s southern boundary.

Open Franklin County property search guide
Union County

Useful for properties west of Delaware County near Concord, Scioto or Ostrander-area corridors.

Open Union County property search guide
Licking County

Useful for parcels east and southeast of Delaware County near the New Albany and Johnstown area.

Open Licking County property search guide
Knox County

Useful for properties near Delaware County’s northeastern boundary and Centerburg-area corridors.

Open Knox County property search guide
Important record limits

What online property records cannot prove

Online tools are useful for
  • Finding parcels and owner displays
  • Reviewing values and building facts
  • Checking tax and transfer history
  • Locating maps, plats and survey records
  • Preparing questions for county offices
Get professional verification for
  • Legal ownership and marketable title
  • Exact boundary locations
  • Encroachments and easements
  • Building or zoning approval
  • Purchase, lending or legal decisions
Ten practical answers

Delaware County property search FAQs

How do I search Delaware County Ohio property records by owner?

Open the official Delaware County Auditor Owner Search. Enter the last name first. You may search with the last name only, or enter the last name followed by a space and the first name. Verify the result using the property address and parcel number.

How should I enter an address in the Delaware County property search?

Enter the house number and the main street name. The official search instructs users to leave out street directions such as N, S, E or W and suffixes such as Street, Drive or Avenue.

Can I search with a partial Delaware County parcel number?

Yes. The official parcel-number search accepts partial entries. Enter the parcel number without spaces or dashes, then verify the matching address before using the property record.

Why might a new Delaware County GIS map show outdated parcel shapes?

Delaware County is replacing its Auditor GIS system and upgrading its parcel-geometry database. The county warns that the replacement map may not yet include all parcel-shape changes made since September, so recent splits, combinations and boundary changes should be checked against the existing GIS and county records.

How can I find a Delaware County subdivision plat or survey?

In the Auditor GIS, open Layers, expand Boundaries and enable Subdivisions or Survey Points. Search and select the parcel. Click a yellow S survey symbol, move to the survey result in the pop-up and select its link to open the PDF. The county also provides a Plat and Survey Finder.

When are Delaware County Ohio property taxes due in 2026?

First-half real-estate taxes were due February 10, 2026. The second-half deadline was extended to August 17, 2026 for this year because of state-law changes.

How much does Delaware County charge for online property-tax payments?

The Treasurer currently lists a $0.85 e-check fee, a $3.95 flat debit-card fee and a 2.30 percent credit-card fee with a $2 minimum transaction requirement. These are third-party processor fees.

Where can I find a Delaware County deed, mortgage or lien?

Use the Delaware County Recorder’s official Recorded Document Search. Search deeds by grantor or grantee, mortgages by mortgagor or mortgagee and use all possible name-spelling variations.

How do I challenge a Delaware County property value?

File a DTE 1 complaint with the Delaware County Board of Revision during its annual January 2 through March 31 filing period. The 2025 tax-year filing period ended March 31, 2026. Prepare evidence such as an appraisal, closing documents, property-condition photos or comparable arm’s-length sales.

Who should I call about a Delaware County property issue?

Call the Auditor at 740-833-2900 for parcel, valuation, exemption and Board of Revision questions; GIS at 740-833-2070 for map and survey help; the Treasurer at 740-833-2480 for tax bills and payments; or the Recorder at 740-833-2460 for deeds, mortgages and recorded documents.

Facts checked July 18, 2026: Owner, address and parcel-search formats; GIS transition notices; survey-layer instructions; office contacts and hours; second-half tax extension; payment processor fees; Recorder search rules and fees; Board of Revision procedures; Homestead, owner-occupancy, CAUV and rental-registration resources were checked against current Delaware County government pages.
Independent guide: CountyAuditors.org is not the Delaware County Auditor, GIS Office, Treasurer, Recorder or Board of Revision. Live property, value, tax, payment, map, survey and recorded-document information is controlled by the responsible government office. Online property information should not replace legal, surveying, title, 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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