Montgomery County Auditor Property Search, Tax & GIS

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Montgomery County, Ohio · Parcels, taxes, tentative values, deeds and maps

Search Dayton-Area Parcels, Taxes and Values

Use Montgomery County’s official property systems to find an owner, street address or parcel ID, review market and assessed values, check current and delinquent taxes, open GIS maps and follow deed-reference clues.

This guide also explains the live 2026 reappraisal, informal value reviews, overdue-tax options, Recorder searches, value appeals, Homestead, CAUV and rental registration—so every official link leads to a clear next action.

Get the quick answer Check your 2026 value Follow search steps
Do not verify a property from the owner name alone. Match the parcel ID and physical address. Auditor ownership, tax-account information, GIS lines and Recorder documents serve different purposes and can update at different times.

Quick answer: where should you start?

Start at MCRealEstate for property records. Choose Address, Owner, Parcel or Advanced Search, enter only the information requested, open the matching parcel ID and save the complete record before moving to tax payment, GIS, deeds, rental registration or a value review.

1 Choose one search Address, owner, parcel or advanced criteria.
2 Open the parcel ID Verify the physical property and owner.
3 Save key details Parcel, tax district, value and deed clue.
4 Use the correct office Treasurer, Recorder, GIS or Board of Revision.

Montgomery County property facts

Official search MCRealEstate.org
Auditor Karl Keith
Auditor phone 937-225-4326
Auditor hours Weekdays, 8 a.m.–5 p.m.
Treasurer 937-225-4010
Recorder 937-225-4275
GIS 937-225-4596
Value hotline 937-224-8927
Main building 451 W. Third St., Dayton
2026 reappraisal Affects tax bills paid in 2027

The MCRealEstate system provides read-only assessment and tax-record access. Use it after selecting the search method that matches the information you already have.

Open MCRealEstate Open official Auditor page
Current August 2026 action

Review your new tentative value now

Montgomery County is completing a full reappraisal of more than 250,000 real-estate parcels. New tentative values are based on individual property characteristics and recent valid neighborhood sales.

What is happening Each parcel is receiving an individual value review as part of the 2026 countywide reappraisal.
When taxes change The tentative values take effect in 2027 and affect bills paid in 2027—not taxes paid in 2026.
Current opportunity Informal reviews are being offered from mid-July through the end of August 2026 by Zoom or telephone.

Micro steps for an informal review

Find your parcel ID Search MCRealEstate and copy the parcel exactly, including spaces. Parcel IDs begin with a letter.
Open the tentative-value tool Compare the proposed value with the existing property record and actual property condition.
Check the property characteristics Review grade, condition, style, living area, land, garages, outbuildings and recent improvements.
Collect direct evidence Prepare a recent open-market sale, appraisal, comparable sales, photographs, measurements or repair estimates.
Schedule the review Enter up to three parcel IDs in one online request. Call the hotline when more than three parcels are involved.
Attend by Zoom or telephone Explain the specific record or market issue and identify the value supported by your evidence.
Keep your submission Save the appointment confirmation, documents submitted and notes from the appraiser discussion.

Evidence the county says is useful

Open-market sale within the last three years
Professional appraisal within the last three years
Sales of genuinely comparable properties
Photographs showing condition issues
Repair estimates or inspection reports
Proof that property characteristics are incorrect
A value increase does not equal the same tax increase. Montgomery County explains that tax rates, levy reduction factors, credits and a district’s levy structure affect the eventual bill. A 19% value increase does not automatically mean a 19% tax increase.
Property Owner Hotline script “I am reviewing parcel [parcel ID] at [address]. The tentative value is [amount], but I believe [property fact, sale, condition or comparable evidence] supports a different value. Can you help me schedule an informal review and confirm which documents I should submit?”
View 2026 reappraisal tools Schedule an informal review Call 937-224-8927 Spanish help: 937-496-3260

Choose the exact property task

The sections below are arranged by user action rather than as a list of county websites.

Office-routing guide

Which office controls your property question?

Use the correct Montgomery County office or system
What you need
Use
What it provides
Important limitation
Owner, address, parcel, value or tax summary
Auditor / MCRealEstate
Property description, values, taxes, sales, payment history and levy information.
Auditor ownership is not a title opinion.
Tentative 2026 value
Reappraisal / Informal Review
Tentative value, neighborhood-sale context and an appraiser discussion.
An informal review is different from a formal BOR appeal.
Live tax balance or payment
Treasurer
Current balance, online payment, posting, prepayment and delinquency plans.
The Auditor does not collect the payment.
Deed, mortgage, lien or easement
Recorder / RISS
Recorded indexes, document images, copies and fraud alerts.
The public database is not a title examination.
Parcel map or surrounding properties
Auditor GIS
Interactive parcel map, map layers and tax-mapping context.
GIS lines are not surveyed boundaries.
Formal value complaint
Board of Revision
Formal value hearing during the January 1–March 31 filing period.
BOR changes value, not tax rates.
Rental-property compliance
Auditor Rental Registration
Online registration, exceptions and ownership/contact updates.
Registration does not replace city licensing or inspections.
Homestead, owner occupancy or CAUV
Auditor tax-reduction programs
Eligibility guidance, applications and programme contacts.
Each programme has separate qualifications.
Best workflow: Find the property in MCRealEstate, copy its parcel ID, save the record and use that same parcel ID with the Treasurer, Recorder, GIS, informal-review portal or Board of Revision.
Failed-search recovery

No Montgomery County property result?

Address returns nothing Remove the street direction and suffix. Try “Third” instead of “W Third Street.”
Numbered street failed Try both the numeral and word versions, such as “3rd” and “Third.”
Owner search failed Use the surname alone and try a previous owner, trust, estate or company name.
Parcel search failed Confirm the leading capital letter and preserve the parcel’s spacing.
Property recently sold Search the seller and then verify the deed through Recorder RISS.
New construction or split Search the parent parcel, developer, former owner or surrounding GIS parcels.
Rental is owned by an LLC Search one unique entity word instead of the complete legal business name.
Website is unavailable Retry later, use the Treasurer property search for tax information or call 937-225-4326.

Prepare this before calling

Full physical property address
Current and former owner names
Parcel ID or partial parcel ID
Tax-bill or deed reference
Approximate transfer or construction date
City, township or municipality
Auditor search-help script “I am trying to identify the property at [address]. The current or former owner may be [name], and I have [parcel, deed or tax-bill information]. Can you confirm whether the parcel was recently transferred, split, combined or renumbered?”
Property and tax-record decoder

Understand what each MCRealEstate tab means

Montgomery County property-record fields explained
Record tab or field
What it shows
Best next action
Parcel ID
Primary county identifier used across multiple property systems.
Copy it before paying, filing or calling another office.
Property Record
Ownership, mailing information and basic parcel facts.
Verify against the deed when legal ownership matters.
Property Description
Land and building characteristics used in appraisal.
Check area, grade, condition, style and improvements.
Tax Summary
Current tax amounts, prior-year delinquency and total currently due.
Verify the live payment balance through the Treasurer.
Land
Land area, class and valuation information.
Review acreage, homesite and CAUV information.
Payments
Posted tax-payment information associated with the account.
Call the Treasurer when a recent payment is not visible.
Levy Distribution
How the parcel’s tax dollars are distributed among local entities.
Use it to understand schools, municipalities and service levies.
Value History
Previous property values and assessment changes.
Compare it with the new 2026 tentative value.
Sales
Transfer dates, prices, buyers and deed-reference clues.
Verify the actual instrument through Recorder RISS.
Current amount due
Tax balance shown by the public record at the time of access.
Confirm current payoff before a closing or overdue payment.
Buyer warning: Check both current taxes and prior-year delinquency before closing. Do not assume the seller, lender or title company has already resolved every balance.

Why value and tax do not move together

Ohio generally assesses real property at 35% of fair market value. The final tax bill also depends on effective millage, levy-reduction factors, tax district, credits and special assessments.

Calculation example: A $200,000 market value generally produces a $70,000 assessed value before the applicable effective tax rates, credits and assessments are applied.
Current August 2026 tax help

Both 2026 property-tax deadlines have passed

First-half due date February 13, 2026

This deadline has passed.

Extended second-half date July 24, 2026

This deadline has also passed.

Inflation-cap credit Automatic if eligible

No separate application was required.

Action now Confirm the live balance

Call 937-225-4010 when overdue.

What to do when taxes remain unpaid

Search the current account Use the Treasurer property search and select the correct tax year.
Open the parcel ID Review current charges, prior delinquency, payments and amount due.
Check for an automatic credit Eligible inflation-cap credits were applied automatically to account balances.
Ask for the current payoff The original installment amount may no longer equal the live balance.
Check lien or foreclosure status Property more than one year past due and not protected by a plan can face tax-lien or foreclosure action.
Request a payment plan before a lien sale Call the Delinquency Department at 937-225-4010, option 2.
Save the payment confirmation Keep the amount, date, parcel ID, payment method and confirmation number.

Payment methods and published processor fees

Montgomery County property-tax payment choices
Method
Published fee or rule
Micro-help
Online e-check
$0.50 per transaction
Verify routing, account and parcel details before submitting.
Online credit card
2.3% of the total payment
Review the calculated fee before authorizing a large payment.
Online debit card
$2.95 per transaction
Compare the debit fee with the e-check option.
Automated phone
833-819-5111; processor payment fees apply
The Treasurer does not take card details directly by phone.
Live phone representative
877-495-2729 plus $5 live-assistance charge
This charge goes to Point and Pay.
In person
Weekdays, 8 a.m.–4 p.m.; processor fees apply to cards
Cash, check and verified payments are also accepted.
Mail
No processor fee for check or money order
Do not mail cash; include the bill coupon.
Drop box
No processor fee for check or money order
Use the west-side box on Vista View Drive; do not leave cash.

Delinquent payment plan

Basic published requirement

A basic plan generally requires a 20% down payment based on total delinquency plus full-year current taxes. The amount can change during a tax-due month.

Protection while compliant

Further penalties and interest are held while the agreement remains in good standing, and the property is protected from lien sale or tax foreclosure.

Missed-plan warning: Missing required monthly payments can void the contract and cause frozen penalties and interest to be added back.

Prepayment for future bills

The monthly prepayment programme is for accounts that are current. Enrollment must generally occur at least 60 days before the relevant half-year due date, and the property cannot have delinquent liens, foreclosure, bankruptcy or another past-due plan.

Treasurer call script “I am calling about parcel [parcel ID] at [address]. Please confirm the current amount due, posted payments, automatic credits, lien status, accepted payment method and whether I qualify for a delinquent or future prepayment plan.”
Search the tax account Review payment options Review delinquency plans Review monthly prepayment
Parcel-map and document research

Use GIS maps without treating them as surveys

Micro steps for the interactive parcel map

Find the parcel ID first Search MCRealEstate and copy the identifier before opening GIS.
Open the official Auditor GIS map Search or navigate to the property and confirm the parcel identifier.
Zoom close to the property Parcel labels and detailed layers may not appear at countywide scale.
Turn on only relevant layers Use parcels, streets, aerial imagery and other available layers without hiding the property.
Compare adjoining parcels Check nearby parcel IDs, road access and map context.
Use recorded documents for legal conclusions Move to deeds, recorded plats, map books or professional surveying when exact boundaries matter.

Historical and mapping documents

City abstract books
Range, town and section abstract books
Archived Auditor map books
Deed books
Recorded plat books
Lease and miscellaneous books
Jordan Index
Out-lot documents
Boundary warning: Do not locate a fence, structure, driveway, utility or easement from an online parcel line. Use the recorded deed and plat and obtain a professional survey when an exact ground boundary matters.
GIS location
451 W. Third Street
Third Floor
Dayton, OH 45422
GIS phone

937-225-4596

Auditor hours

Monday–Friday, 8 a.m.–5 p.m.

Open interactive GIS map Read GIS disclaimer and contacts Open historical map documents
Recorded land documents

Find deeds, mortgages, liens and releases in RISS

The Recorder’s Information Search System is the correct source for recorded-document research. Use the Auditor parcel first to collect owner, transfer-date and deed-reference clues.

Search RISS step by step

Prepare the owner or firm name Search current and former owners, trusts, estates and business entities.
Open RISS and accept the disclaimer The search proceeds after the user acknowledges the Recorder’s legal disclaimer.
Allow the required browser features Enable cookies, JavaScript and pop-ups for RISS and the county OnBase document system.
Select an index type Choose the record category that matches the deed, mortgage, release, lien or other document.
Add a useful date range Narrow by the approximate purchase, refinance, release or recording period.
Open the matching index and image Compare parties, date, instrument details, legal description and parcel clues.
Request a certified copy when required Ask the lender, court, title professional or agency whether an ordinary printout is sufficient.

Current published Recorder fees

Montgomery County Recorder fees
Service
Published fee
Practical note
Basic recording
$39 for the first two pages
Applies to deeds, mortgages, leases and several other record types.
Additional page
$8 per page
Count every page after the first two.
Mortgage release or assignment notation
$4 marginal-notation fee
Added to applicable releases and assignments.
Photocopy
$2 per page
Confirm delivery or fax charges when applicable.
Certified copy
$2 per page plus $1 certification
Request certification only when the receiving party requires it.
Plat copy
$0.10 per square inch; $40 minimum
Confirm the desired plat and size before ordering.
Free deed-fraud alert: Montgomery County property owners can enroll in the Recorder’s Fraud Alert Notification system to receive notice when a document is recorded under a registered name.
Search limitation: The Recorder does not guarantee that public database information is free from errors or that a search establishes ownership, lien priority or marketable title.
Recorder

Lori Kennedy

937-225-4275

Email

mcrecorder@mcohio.org

Office
451 W. Third St., Fifth Floor
Dayton, OH 45422-1387
Weekdays, 8 a.m.–4 p.m.
Open Recorder RISS Review fees and documents Open fraud-alert option
Conveyance and recording

Transfer a deed without missing an office step

A deed transfer requires more than recording a signed page. The Auditor must process the conveyance information for the parcel before the Recorder completes applicable transfer documents.

Published transfer charges

Conveyance fee

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

Parcel transfer fee

$0.50 for each parcel transferred.

Deed-transfer workflow

Identify every parcel Copy the parcel IDs and confirm the property descriptions.
Prepare the deed and legal description Include required parties, signatures, acknowledgment and prior recording information.
Complete the correct conveyance statement Use the taxable statement of value or the exemption statement as applicable.
Address special property status Homestead, CAUV, rental or manufactured-home issues can require additional forms.
Obtain the transfer or no-transfer stamp Documents such as deeds, easements and deed-related affidavits may need Auditor processing before recording.
Submit the original to the Recorder Include the applicable recording fee and required document format.

Electronic recording limitation

The Recorder accepts non-transfer documents through eRecording. Deeds and documents requiring a transfer or no-transfer stamp still need to move through the Auditor’s Deed Transfer Department before recording.

Deed Transfer call script “I am preparing a transfer involving parcel [parcel ID]. The transaction includes [sale, exemption, trust, Homestead, CAUV, rental or multiple parcels]. Can you confirm the required forms, transfer fee and whether the document needs an Auditor or Engineer review before recording?”
Review deed-transfer rules Search conveyance forms Open official forms Call Deed Transfer: 937-225-4373
Formal valuation complaint

Use Board of Revision after the informal-review stage

Do not confuse the two review paths. The August 2026 informal review concerns tentative reappraisal values. A formal Board of Revision complaint is filed during the January 1–March 31 filing period after values and taxes are established.

What the Board can decide

The three-member Board determines fair market value. It can increase, decrease or retain a value, but it cannot directly change tax rates or simply remove the amount due.

Prepare a strong complaint

Correct parcel and filing year
Current value and requested value
Recent valid open-market sale
Professional appraisal
Comparable sales
Photographs and condition evidence
Measurements and property-record errors
Repair estimates or damage documents

Arguments that usually need more evidence

“My taxes are too high” Explain why the fair market value is wrong, not only why the bill is difficult to pay.
“My neighbor is valued lower” Use valid sales and comparable property facts rather than one neighbor’s assessment.
“The area is declining” Provide market sales, appraisal analysis or documented property-condition evidence.
“The website estimate is lower” An automated third-party estimate is weaker than a sale, appraisal or supported comparison.

Formal filing steps

Download the current complaint form Use Montgomery County’s current Board of Revision form and policies.
Identify the correct property and year Enter the parcel ID and value being challenged.
State a supported requested value Explain the sale, appraisal, comparable or property-error basis.
Submit evidence with the complaint Organize files clearly so each document supports a particular issue.
File from January 1 through March 31 Do not rely on an informal conversation as a formal filing.
Prepare for a remote hearing Montgomery County conducts hearings by Zoom or telephone.
Board of Revision

937-496-6856

Real Estate Assessment

937-225-4326

Location
451 W. Third Street
Third Floor
Dayton, OH 45422
Open Board of Revision Open complaint form and policies
Tax savings and corrections

Check Homestead, owner occupancy, CAUV and damage relief

Montgomery County property-tax programmes
Programme
Main purpose
Key requirement
Contact or form
Homestead Exemption
Reduces taxation for qualifying seniors, disabled homeowners and certain surviving spouses.
Primary residence plus the applicable age, disability and income rules.
Homestead Hotline: 937-225-4341
Owner Occupancy Credit
Provides up to a 2.5% reduction on qualifying levies for the primary residence.
Owner and spouse can receive the credit on only one principal home.
Owner-occupancy application
CAUV
Values qualifying commercial farmland according to agricultural use and soil.
Ten acres or the qualifying income route for smaller tracts.
CAUV: 937-496-3281
Damaged Property
Requests a proportional taxable-value reduction after structural damage.
Document the date, cause and severity of damage.
Destroyed or Damaged Property form
Tax Exemption
Potential exemption for qualifying charitable or governmental use.
State-recognized owner or lessee and qualifying public-purpose use.
Tax exemption: 937-496-6625

Homestead application micro-steps

Confirm the eligibility category Age 65+, permanent and total disability, qualifying veteran or applicable surviving spouse.
Check the current income rule The income limit is adjusted. Verify the application-year MAGI requirement rather than reusing an old threshold.
Confirm principal residence The applicant must own and occupy the home under the applicable January 1 rule.
Choose the correct submission method Senior and surviving-spouse applications may support online submission; disability and veteran cases require printed documentation.
File by December 31 Keep the submitted application and supporting evidence.

CAUV qualification

Ten acres or more

Land devoted exclusively to commercial agricultural use may qualify under the acreage route.

Less than ten acres

The land may qualify when average annual gross farm income for the prior three years is at least $2,500.

CAUV does not reduce everything. The programme does not reduce the value of buildings or the minimum one-acre homesite beneath the buildings.
Review Homestead requirements Start Homestead application Review CAUV Open real-estate forms
Landlord compliance

Register residential rental property correctly

Ohio requires residential rental-property owners to register qualifying property with the County Auditor. Registration can cover houses, apartments, mobile-home parks and residential lots leased for manufactured homes or recreational vehicles.

Who needs to provide information?

Individual or sole proprietor

Provide the owner’s complete name and required contact information.

Partnership, corporation or trust

Provide the entity name and a corporate officer or responsible contact.

Business entity

Designate a contact agent as required by Ohio law.

Out-of-state owner

Designate an in-state contact agent.

Registration workflow

Find the parcel ID Open MCRealEstate and copy the identifier from the Property Record tab.
Determine whether the property is covered Residential rental units and qualifying mobile-home or RV residential lots are included; hotels and college dormitories are excluded.
Prepare owner and agent information Include the legal owner, entity, officer and Ohio contact agent where applicable.
Submit online or by form Use the official registration or rental-exception route.
Update changes within 60 days Report changes to ownership, addresses, officers or contact agents.
Compliance warning: Failure to provide required rental information in time is a minor misdemeanor and may result in a penalty of up to $150 assessed against the property.
Rental Registration call script “I own parcel [parcel ID] at [address] through [individual, LLC, corporation or trust]. Can you confirm whether registration is required, whether I need an Ohio contact agent and which ownership details must be updated?”
Review rental-registration rules Call Rental Registration: 937-225-4314
Phones, address and visit preparation

Montgomery County property contacts

Contact the office that can complete the task
Office
Use it for
Contact
Hours and location
Auditor
Property records, value, calculations, tax reductions and reappraisal.
937-225-4326
451 W. Third St., Dayton; weekdays 8 a.m.–5 p.m.
Property Owner Hotline
2026 tentative values and informal reviews.
937-224-8927
Confirm appointment availability when calling.
Treasurer
Payment, balance, delinquency, prepayment and tax liens.
937-225-4010
451 W. Third St.; weekdays 8 a.m.–4 p.m.
Recorder
Deeds, mortgages, liens, copies and fraud alerts.
937-225-4275
mcrecorder@mcohio.org
451 W. Third St., Fifth Floor; weekdays 8 a.m.–4 p.m.
GIS
Parcel maps, map layers and tax mapping.
937-225-4596
451 W. Third St., Third Floor.
Board of Revision
Formal fair-market-value complaints.
937-496-6856
451 W. Third St., Third Floor; weekdays 8 a.m.–5 p.m.
Homestead
Age, disability, income and application questions.
937-225-4341
Auditor’s Office, 451 W. Third St.
CAUV
Farmland eligibility, application and renewal.
937-496-3281
Auditor’s Office, 451 W. Third St.

Bring or include these details

Parcel ID with spaces
Physical property address
Current owner name
Relevant tax or value year
Deed or recording clue
Specific form or programme
Short explanation of the issue
Evidence or confirmation number
Nearby county lookup

Check a neighboring county when the property is missing

Mailing cities and ZIP codes do not always match county boundaries. Verify the county when a border-area parcel does not appear in Montgomery County.

Clark County

Useful for properties near the northeastern Montgomery County boundary.

Open Clark County property-search guide
Miami County

Useful for parcels near Vandalia, Tipp City and the northern boundary area.

Open Miami County property-search guide
Butler County

Useful for properties near the southwestern county boundary.

Open Butler County property-search guide
Record and legal limits

What an online property record cannot prove

Useful for
  • Identifying a parcel
  • Reviewing values and characteristics
  • Checking tax and payment information
  • Finding sales and deed clues
  • Preparing questions for county staff
Get additional verification for
  • Legal title or lien priority
  • Exact boundary locations
  • Zoning or building approval
  • Easements and encroachments
  • Purchase, lending or legal decisions
Responsible-use warning: Do not accuse, identify or contact someone from a matching owner name alone. Verify the parcel and use public property information lawfully.
Ten practical answers

Montgomery County property and tax FAQs

How do I search Montgomery County Ohio property records?

Use the official MCRealEstate system. Search by address, owner name, parcel ID or advanced criteria. Start with one search method, open the matching parcel and verify the parcel ID and physical location.

What should I enter in the Montgomery County address search?

Enter the house number separately and use only the main street name. Do not initially include street directions or suffixes such as North, South, Street, Road or Avenue.

How are Montgomery County parcel numbers formatted?

Montgomery County parcel IDs begin with a capital letter. An official example is A01 00107 0001. Enter the spaces as displayed when a portal or form requests the exact parcel ID.

When will Montgomery County’s 2026 tentative values affect taxes?

The 2026 reappraisal values take effect for tax purposes in 2027 and affect property-tax bills paid in 2027. They do not change the property taxes paid during calendar year 2026.

How do I request a 2026 Montgomery County informal value review?

Use the official informal-review scheduling portal or call the Property Owner Hotline at 937-224-8927. Reviews are conducted by Zoom or telephone, and the county announced meetings from mid-July through the end of August 2026.

What should I do if my 2026 Montgomery County property taxes are unpaid?

Both 2026 installment deadlines have passed. Search the live tax account and call the Treasurer at 937-225-4010 to confirm the current balance, payment method, penalties, credits, lien status and payment-plan eligibility.

Are Montgomery County GIS parcel lines legal boundaries?

No. Auditor GIS lines are useful for locating and comparing parcels but do not replace a recorded deed, plat, legal description or professional boundary survey.

Where can I find Montgomery County deeds and mortgages?

Use the Montgomery County Recorder’s RISS system. Agree to the legal disclaimer, allow pop-ups for the Recorder and OnBase sites, and search by owner or firm name, index type and date range.

How do I appeal a Montgomery County property value?

A formal value appeal is filed with the Board of Revision from January 1 through March 31. Use the current complaint form and support the requested value with a recent sale, appraisal, comparable sales or documentation of property-condition issues.

Do Montgomery County residential landlords have to register rental property?

Yes. Residential rental owners must register qualifying property with the Auditor. Business entities need a contact agent, out-of-state owners need an Ohio contact agent, and registration changes must be reported within 60 days.

Information checked August 7, 2026: Property-search inputs, office contacts, tentative-value reviews, 2026 tax deadlines, payment fees, delinquent plans, GIS guidance, Recorder fees, deed-transfer charges, Board of Revision procedures, Homestead, CAUV and rental-registration rules were checked against Montgomery County’s official websites and systems.
Independent guide: CountyAuditors.org is not the Montgomery County Auditor, Treasurer, Recorder, GIS Department or Board of Revision. Confirm live values, balances, deadlines, fees, eligibility and recorded documents with the responsible government office before paying, filing or making a legal or financial decision.
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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