Marion County Auditor Property Search: Tax, Records & GIS

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Marion County, Indiana · Parcel, value, tax, GIS, deduction and deed help

Find the Right Parcel, Tax Record or Map

Search Indianapolis and Marion County property records by address, owner name, 7-digit county parcel number, or 18-digit Indiana state parcel number. Then review the assessed value, land, improvements, tax district, legal-description clues, and mapped location.

This guide also explains an important Indiana distinction: the Assessor controls property cards and values, the Auditor handles deductions and tax accounting, the Treasurer collects taxes, and the Recorder maintains deeds and other recorded documents.

Get the quick answer Follow the search steps Check 2026 tax dates
Do not use the wrong county office. Marion County’s property-card search and assessed values belong to the Assessor. The Auditor handles deductions and tax-accounting work, the Treasurer handles payments, and the Recorder handles recorded land documents.

Quick answer: where should you start?

Start with the official Marion County Assessor Property Cards application. Search by address, owner, 7-digit county parcel number, or 18-digit state parcel number. Open the correct report card, save both parcel numbers, and then move to the tax, map, deduction, deed, or appeal tool matching your task.

1 Find the parcel Use one search method and begin broadly.
2 Verify the result Match the address and parcel number.
3 Save the property card Keep values, tax district, acreage, and owner details.
4 Use the right office Assessor, Auditor, Treasurer, Recorder, or GIS.

Current Marion County property facts

Assessor Joseph P. O’Connor
Auditor Julie Voorhies
Recorder Kate Sweeney Bell
Treasurer Barbara A. Lawrence
County parcel 7-digit number
State parcel 18 digits beginning with 49
Spring 2026 tax Due May 11, 2026
Fall 2026 tax Due November 10, 2026
Main building 200 E. Washington St.
General building line 317-327-3200

The property-card application lists four separate search methods. Choose the method matching the information already in your possession instead of entering unrelated details into several systems.

Open official Property Cards Open assessed-value workflow

Choose the property task you need

Every section below solves a separate user problem rather than sending you through an unexplained list of links.

Office-routing guide

Which Marion County office controls the record?

Use the correct property office for each task
Your task
Correct office or tool
What it provides
Important limit
Find owner, parcel, land, building, or assessed value
Marion County Assessor
Property cards, parcel facts, assessment records, and value information.
The property card is not a title opinion.
Check Homestead or another tax deduction
Marion County Auditor
Deduction processing, tax-accounting corrections, and related real-estate administration.
The Auditor does not establish the original assessed value.
Pay tax or verify the current balance
Marion County Treasurer
Tax collection, payment posting, balances, penalties, and receipts.
A tax estimate is not a live Treasurer balance.
Find a deed, mortgage, lien, release, or easement
Marion County Recorder
Recorded-document indexes, images, copies, and recording services.
An online index does not guarantee clear title.
View parcel location, roads, aerials, or infrastructure
MapIndy / IndyGIS
Interactive parcel and government map layers.
Mapped boundaries are not surveys.
Check zoning or planning information
Indy Zoning Browser / Department of Metropolitan Development
Zoning and planning context.
Confirm an official interpretation before construction or purchase.
Challenge assessed value or record facts
Assessor / PTABOA
Form 130 appeal, informal review, and county-board process.
The deadline depends on the applicable assessment notice.
Research a tax-sale parcel
Tax Sale Viewer
Mapped tax-sale research and available parcel information.
Locations and data require independent verification.
Best working sequence: Find the Assessor property card, copy the 7-digit and state parcel numbers, and use those identifiers when contacting every other office.

The official agency pages provide live office notices, service changes, and contact options. Open the relevant agency only after identifying which office owns the task.

Open Assessor agency page Open Auditor agency page Open Treasurer agency page Open Recorder agency page
Failed-search recovery

No Marion County property result found?

Owner name returned nothing Use only the surname or a distinctive trust, estate, LLC, or corporate word.
A recent buyer is missing Search the seller or former owner because the Recorder and Assessor displays may update at different times.
The address was typed manually Start again and select the correct address from the official autocomplete suggestions.
A condominium unit is missing Confirm the individual unit number. A building-wide address may not display the unit’s current deduction or parcel information.
The county parcel failed Verify that it contains exactly seven digits and was not confused with the longer state parcel number.
The state parcel failed Confirm that it begins with 49 and check the continuous and hyphenated formats.
New construction or a parcel split Search the parent parcel, developer, former owner, or nearby address until the new parcel is fully processed.
Two parcels were combined Search each older parcel and ask the Assessor whether a new combined identifier was assigned.
The postal city is confusing Use the parcel map and county location rather than relying on “Indianapolis” or another mailing-city label alone.
The search tool reports a technical problem Record the address, parcel, browser, error message, and time, then email GIS support.

Prepare this before requesting help

Complete physical address
Owner and former-owner names
Any county or state parcel number
Condominium or apartment unit
Approximate transfer or construction date
Screenshot or exact error message
Property-search help script “I am trying to identify the parcel at [address]. The current or former owner may be [name], and I have [county parcel, state parcel, deed date, or unit number]. Can you confirm whether the parcel was transferred, split, combined, renumbered, or recorded under another address?”
Call assessment help: 317-327-4606 Email GIS support
Record-field decoder

Understand the Marion County property card

Common Marion County parcel fields explained
Field
What it means
Practical next action
County parcel number
The shorter Marion County identifier.
Use it in county tax, property-card, and office questions.
State parcel number
The 18-digit Indiana parcel identifier beginning with 49.
Use it on state forms and when distinguishing similar parcels.
Owner name
The ownership name presently displayed in assessment data.
Use the recorded deed for legal ownership verification.
Owner mailing address
Where property-tax or ownership correspondence is directed.
Do not confuse it with the physical property address.
Land assessed value
The assessment assigned to the land portion.
Check lot size, acreage, classification, and neighborhood.
Improvement assessed value
The assessment assigned to buildings and improvements.
Verify building size, age, condition, and features.
Total assessed value
Combined land and improvement assessment before applicable deductions.
Compare it with the Form 11 and current tax bill.
Tax district
The combination of taxing units and rates applying to the property.
Use it when reviewing the bill or government jurisdictions.
Neighborhood
An assessment-area identifier used for analysis and valuation context.
Use similar nearby properties carefully when researching an appeal.
Subdivision
The recorded or assessment subdivision associated with the parcel.
Use the Recorder or plat records for the actual recorded document.
Legal description
A short assessment-record description of the property.
Do not treat an abbreviated display as a complete deed description.
Acreage
The acreage stored in the assessment or GIS record.
Use a recorded survey when exact dimensions matter.

Check these facts before disputing value

Property facts
  • Land size and property class
  • House or building square footage
  • Year built and effective age
  • Construction type and condition
  • Basement, garage, and outbuildings
  • Additions, demolition, or damage
Useful correction evidence
  • Dated photographs
  • Measurements or floor plans
  • Building permits
  • Inspection reports
  • Repair estimates
  • Recorded deed, plat, or survey
Assessment-year tip: Compare records from the same assessment year. A current construction change, sale, deduction, or mailing-address update may not appear in an older report.
2026 tax payment guide

Check Marion County tax dates and payment status

Spring installment May 11, 2026

This deadline has passed.

Fall installment November 10, 2026

Upcoming as of August 6, 2026.

Indiana billing rule Paid in arrears

Taxes are paid after the assessment year.

Missed May installment: Verify the live Treasurer balance before paying. A taxpayer who pays within 30 days and owes no earlier delinquent tax on the same parcel may receive a 5% penalty; otherwise the penalty is generally 10%.

Micro steps for the official payment workflow

Find the parcel first Use Property Cards to confirm the address and parcel number before opening the payment workflow.
Search the tax account The official payment workflow supports property-address or parcel searches.
Use a partial search when necessary Try a house number plus the main street word or a partial owner name rather than an over-specific entry.
Confirm the property Match the parcel, address, owner, installment, and tax year.
Choose full or partial payment The official workflow supports one-time full or partial payments where available.
Select the payment method Available routes include ACH or electronic check and credit card. Account-based options may also display supported digital wallets.
Review all displayed charges Read the final amount and any processor fee before authorizing payment.
Save confirmation Keep the date, amount, parcel number, installment, method, and confirmation number.
Verify posting A payment authorization and the county account posting may not occur at the same moment.

Use the cash-history report when researching old payments

The official cash-history workflow helps users review tax payment history by property address or county parcel number and select a tax year. It is especially useful when confirming prior installments, mortgage-servicer payments, refunds, or closing-related tax history.

Tax-account call script “I am calling about parcel [parcel number] at [address]. I need to confirm the current 2026 balance, whether the May installment posted, the November amount, any penalty, and whether a mortgage or another payer already submitted payment.”
Open official tax-payment workflow View property cash history Open Treasurer agency page
Parcel, zoning, survey and infrastructure maps

Use MapIndy and GIS without misreading the parcel

MapIndy searches Marion County property by address or parcel and can link users back to the property record card. The wider IndyGIS hub includes zoning, survey, stormwater, neighborhood, planning, government-profile, and tax-sale applications.

MapIndy workflow

Copy the parcel number Start from the Assessor property card to avoid selecting a nearby parcel.
Open MapIndy Search by the supported address or parcel identifier.
Select the correct search result Compare the parcel number and property location.
Zoom before enabling layers Detailed parcel, infrastructure, imagery, and boundary layers may be clearer at neighborhood scale.
Use only the necessary layer Avoid covering the parcel with unrelated map information.
Return to the property card Use the map result’s Property Record Card link when available.
Print the map with context Include the parcel, road names, legend, scale, and date when using it for research.
Choose the correct Indianapolis map application
Application
Best use
Important warning
MapIndy
Parcel location, addresses, boundaries, infrastructure, historic basemaps, and imagery.
Mapped parcel lines do not replace a survey.
Property Report Cards
Assessed value, owner display, parcel facts, land, and improvements.
The owner display does not replace a recorded deed.
Indy Zoning Browser
Initial zoning and planning research.
Confirm an official interpretation before relying on it.
Indy Surveyor Viewer
Surveyor-related map and drainage research.
The viewer does not establish privately surveyed corners.
Stormwater Impervious Area
Review mapped impervious surfaces and stormwater context.
Confirm billing or engineering questions with the responsible agency.
Government Profile
Government districts and service jurisdictions.
Use the exact property address and selected autocomplete result.
My Neighborhood
Neighborhood-level services and local information.
Neighborhood boundaries may serve different purposes.
Tax Sale Viewer
Initial research on mapped tax-sale properties.
Locations are approximations and must be independently verified.
Boundary and construction warning: Do not place a fence, driveway, building, utility, or other improvement from a GIS line. Review the deed, recorded plat, available survey records, and professional boundary evidence.
Open IndyGIS map hub Open MapIndy Read MapIndy help
Form 11 and Form 130

Appeal a Marion County assessment correctly

Do not invent the filing deadline. Use the deadline printed on the applicable Form 11 or tax notice. Indiana’s current Form 11 status table does not publish a Marion County 2026 mail date or appeal date, so contact the Assessor at 317-327-4606 when the notice is unclear.

Choose the correct Form 130 issue

Subjective appeal — Form 130 page 1

Use this when you believe the assessed value does not reflect the property’s correct market value.

  • Recent sale of the property
  • Comparable-property sales
  • Licensed appraisal
  • Income and expense evidence for income property
  • Condition or functional-obsolescence evidence
Objective issue — Form 130 page 2

Use this for factual, clerical, deduction, credit, exemption, or property-description issues.

  • Assessment against the wrong person
  • Incorrect square footage or property description
  • Missing deduction, credit, exemption, or tax cap
  • Clerical, mathematical, or typographical error
  • Legality or constitutionality claim

Assessment-appeal workflow

Read the Form 11 Identify the assessment year, old value, new value, notice date, and stated appeal deadline.
Open the current property card Check every land, building, class, size, condition, and improvement fact.
Select subjective or objective grounds A market-value disagreement and a factual record error are not the same appeal.
Complete one Form 130 per parcel Use the correct county and parcel identifiers.
Attach focused evidence Tie every document to the specific value or factual correction requested.
File with the local assessing official Keep proof of delivery and a complete copy.
Attend the informal conference The Assessor may approve or deny the requested change before forwarding the matter.
Prepare for PTABOA if unresolved The county Property Tax Assessment Board of Appeals reviews unresolved local appeals.
Review further appeal rights A PTABOA decision may be appealed to the Indiana Board of Tax Review and later the Indiana Tax Court.

Objective claims and refunds

Indiana permits certain objective claims for up to three years of assessments through Form 130. A taxpayer requesting an actual refund must also review the separate Form 17T refund requirement.

Evidence checklist

Form 11 or tax notice
Current property card
Sale closing statement
Comparable sales with adjustments
Licensed appraisal, when available
Dated condition photographs
Measurements or floor plans
Repair or demolition estimates
Permit or inspection records
Income and expense data for commercial property
Assessment-call script “I received a Form 11 for parcel [number]. The notice shows an assessment of [amount], and I believe [the value or property fact] is incorrect because [brief reason]. Can you confirm the deadline, current Form 130, filing method, and informal-conference process?”
Read Indiana appeal process Open current DLGF forms Check Form 11 information
Auditor deduction workflow

Check Homestead and other property deductions

Search the property’s current deductions before filing another application. Verify the parcel and individual condominium or multi-unit address so you do not review a building-wide or neighboring record.

Check deductions before applying

Open Search Current Deductions Begin typing the property address and select the correct official suggestion.
Confirm the populated owner and parcel Make sure the result belongs to the correct property and unit.
Review existing deductions Check whether Homestead or another applicable benefit is already listed.
Choose the correct application Do not submit a duplicate or unrelated deduction form.
Prepare ownership and eligibility information Only the owner or an appropriately authorized representative should file the applicable application.
Save submission confirmation Record the date, parcel, deduction type, and confirmation or delivery proof.
Common deduction and account tasks
Task
Who may qualify or file
Preparation
Search current deductions
Any user researching the public deduction display.
Exact selected property address, owner, parcel, and unit.
Homestead Deduction
The property owner or authorized representative for a qualifying principal residence.
Ownership, occupancy, identity, and parcel information.
Disabled Veteran Deduction
A qualifying veteran, authorized representative, or eligible surviving spouse.
Ownership and current veteran or surviving-spouse documentation.
Mailing-address change
The owner or properly authorized submitter.
Owner, parcel, prior mailing address, new address, email, and phone.
Missing or incorrect deduction
The owner or representative disputing the deduction display.
Property card, tax bill, application proof, and relevant dates.
Mortgage Deduction warning: Indiana’s current 2026 tax-bill form states that the Mortgage Deduction has not been available since 2023 Pay 2024. Do not rely on an older application page or article suggesting it remains a current benefit.
Condominium and multi-unit tip: If the deduction search does not show the individual unit, do not assume that no deduction exists. Verify the unit parcel and contact gis@indy.gov when the address result appears incomplete.
Search current deductions Open Homestead application Open disabled-veteran application Change tax mailing address
Deeds, mortgages, liens and plats

Move from the property card to recorded documents

Use the Assessor card to identify the parcel and owner, then use the Recorder for the actual recorded document. A property-card owner name does not replace a deed or title examination.

Prepare a Recorder search

Current owner name
Former owner name
Trust, estate, or business name
County and state parcel numbers
Approximate transfer or recording date
Document type
Property address
Any instrument or deed reference

Search recorded documents step by step

Open the Recorder’s official agency page Review current remote-search, office, copy, and recording instructions.
Search both grantor and grantee The grantor generally transfers an interest; the grantee generally receives it.
Try name variations Search full names, initials, previous surnames, trusts, estates, and business entities.
Narrow by date Use the approximate sale, refinance, release, or recording period.
Choose the document type Look for deed, mortgage, release, lien, easement, affidavit, plat, or another relevant instrument.
Open the index details and image Compare names, recording date, instrument number, and property-description clues.
Ask whether a certified copy is required Courts, lenders, title companies, and government agencies may require more than an ordinary printout.
Title and lien warning: A public Recorder search may not reveal every title defect, unrecorded interest, indexing issue, or legal consequence. Use qualified title or legal assistance for a purchase, loan, foreclosure, probate, or ownership dispute.
Recorder research script “I am researching parcel [parcel number] at [address]. The current or prior owner is [name], and the relevant event occurred around [date]. I need help locating a [deed, mortgage, release, lien, easement, or plat]. Which search field or copy process should I use?”
Open Recorder agency page
High-risk property research

Research a Marion County tax-sale parcel carefully

The Tax Sale Viewer is an initial research tool. Marion County warns that map locations are approximate and that typographical errors or misinformation may occur.

Do not stop at the tax-sale map

Confirm the parcel number Match the Tax Sale Viewer result with the Assessor property card.
Verify the physical location Compare the address, parcel map, surrounding streets, and aerial imagery.
Review assessed property facts Check land, improvements, property class, acreage, and owner display.
Search Recorder documents Research deeds, mortgages, liens, easements, releases, and plats.
Check zoning and land-use issues Review the Zoning Browser and obtain official guidance when intended use matters.
Investigate occupancy and condition lawfully Do not enter the property or assume it is vacant.
Read the county’s tax-sale preparation guidance Understand registration, payment, redemption, title, and post-sale requirements before bidding.
Assessor property card
Tax Sale Viewer result
Recorded deed and liens
Zoning and land use
Flood and stormwater context
Building or demolition issues
Legal access and easements
Independent title research
Do not infer immediate ownership or possession from a successful bid. Tax-sale law can involve redemption, notices, title procedures, existing interests, and other legal steps.
Open Tax Sale Viewer Read tax-sale preparation guidance
Address, district and mailing help

Fix a wrong address or identify the jurisdiction

Tax-bill mailing address

Use the official mailing-address workflow when the owner’s tax correspondence should be sent elsewhere.

Government jurisdictions

Use the property-address autocomplete to identify applicable government jurisdictions and parcel information.

Elected officials

Use the same address-selection process to identify elected officials representing the property.

Mailing-address change preparation

Submitter’s full name
Email and phone number
Property owner status or authorization
Property address
Parcel number
Old mailing address
Complete new mailing address
Submission confirmation
Autocomplete tip: Begin typing the physical property address and select the correct official suggestion. The owner name and parcel ID may populate only after a suggested address is selected.
Change mailing address Find government jurisdictions Find elected officials
Contact and visit planning

Marion County property contacts

Prepare the parcel before calling or visiting
Office or contact
Use it for
Verified contact path
City-County Building
Main Indianapolis and Marion County government location.
200 East Washington Street
Indianapolis, IN 46204
317-327-3200
Assessor / Form 11 help
Assessment notices, property cards, value, property facts, and appeals.
317-327-4606
Use the official Assessor agency page for current counter details.
Auditor
Deductions, tax-accounting corrections, and related real-estate administration.
Use the official Auditor agency page for the current division and contact route.
Treasurer
Payment, live balance, penalty, delinquency, and receipt questions.
Use the official Treasurer agency page and property-tax workflow.
Recorder
Deeds, mortgages, releases, liens, easements, plats, and document copies.
Use the official Recorder agency page for current search and copy instructions.
GIS support
Property-map, address-selection, unit, or GIS application issues.
gis@indy.gov

Include these facts in a call or email

7-digit county parcel
18-digit state parcel
Complete property address
Owner name
Assessment or tax year
Form or deduction name
Brief description of the problem
Evidence or exact error message
Universal property call script “I am contacting you about county parcel [number] and state parcel [number] at [address]. I need help with [assessment, deduction, tax payment, deed, map, zoning, or appeal]. The current record shows [brief fact]. Which official workflow, form, or office should I use next?”
Related Indiana guide

Searching property outside Marion County?

Grant County, Indiana

Use the Grant County Auditor guide when the property is recorded in Grant County rather than Indianapolis or Marion County. County systems, search fields, contacts, and deduction procedures are not interchangeable.

Open the Grant County Auditor guide
Accuracy and legal limits

What an online property record cannot prove

Online records are useful for
  • Identifying a parcel
  • Reviewing assessed values
  • Checking current deduction displays
  • Locating tax and map information
  • Preparing questions for county staff
Get additional verification for
  • Legal ownership and clear title
  • Exact boundary locations
  • Official zoning interpretation
  • Unrecorded interests or title defects
  • Purchase, lending, tax-sale, or legal decisions
Responsible-use warning: Do not identify, accuse, contact, or publish conclusions about someone from a same-name property result alone. Verify the parcel and use public information lawfully.
Ten practical answers

Marion County property search FAQs

What is the official Marion County property search?

Use the official Marion County Assessor Property Cards application. It supports a 7-digit county parcel number, an 18-digit state parcel number, an owner name, or a property address.

Does the Marion County Auditor determine property value?

No. The Marion County Assessor maintains property records and assessed values. The Auditor handles deductions, tax accounting, corrections, and related real-estate administration.

How do I search Marion County property by owner name?

Enter all or part of the owner name. Begin with the surname or the most distinctive part of a trust, estate, LLC, or business name, then add more information only when the results are too broad.

What parcel-number formats does Marion County use?

The property-card tool accepts a 7-digit county parcel number or an 18-digit Indiana state parcel number beginning with 49. The state number may also appear in a hyphenated format.

When are Marion County property taxes due in 2026?

Indiana’s 2026 property-tax installment dates are May 11, 2026 and November 10, 2026. The May installment has passed, while the November installment remains upcoming as of August 6, 2026.

What should I do if I missed the May 2026 tax deadline?

Open the official Marion County property-tax workflow and verify the live balance before paying. A qualifying payment made within 30 days may receive a 5% penalty; otherwise the penalty is generally 10%.

Are MapIndy parcel lines legal property boundaries?

No. MapIndy and other GIS layers are useful for research and locating parcels, but they do not replace a recorded deed, subdivision plat, survey, or official zoning determination.

How do I appeal a Marion County property assessment?

Review the Form 11 notice and file Indiana Form 130 with the local assessing official by the deadline shown on the applicable notice. Value disputes are filed as subjective appeals, while factual record errors are handled as objective issues on Form 130.

How can I check deductions on a Marion County property?

Use the official Search Current Deductions workflow. Verify the parcel and unit, review existing deductions, and then use the applicable Homestead, disabled-veteran, or other current deduction process.

Where can I search Marion County deeds and mortgages?

Start with the Marion County Recorder’s official agency page. Use the owner names, approximate recording date, document type, and property clues from the Assessor property card to locate deeds, mortgages, releases, liens, easements, or plats.

Information checked August 6, 2026: Property-card search methods, current elected officials, 2026 tax dates, Indiana penalty rules, payment workflows, cash-history guidance, GIS applications, deduction workflows, Form 11 and Form 130 appeal rules, Recorder routing, and tax-sale map warnings were checked against official Indianapolis, Marion County, IndyGIS, and Indiana DLGF sources.
Independent guide: CountyAuditors.org is not the Marion County Assessor, Auditor, Treasurer, Recorder, PTABOA, Indianapolis GIS, or Indiana Department of Local Government Finance. Confirm live balances, deadlines, eligibility, assessment data, title records, and legal requirements with the responsible public office.
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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