Mahoning County Auditor Property Search: Parcel, Tax & GIS

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Mahoning County, Ohio · Parcel, value, tax, map and transfer-alert help

Find Parcels, Taxes, Maps & Transfer Alerts

Search Mahoning County property records by owner name, street address or parcel number, then use the detailed record to review values, legal-description clues, residential or commercial characteristics, sales, taxes, payments and special assessments.

This guide explains exactly what to type, how to fix a failed lookup, which record section answers each question, when to switch to GIS or Recorder records, and how to handle ownership alerts, tax payment, exemptions, property damage, transfers or a value complaint.

Read the quick answer See exact search steps Set a transfer alert
Verify the parcel before using the record. Match the property address and full parcel number—not only the owner name. Ownership, values, transfers, taxes and maps can change after processing, and an online GIS boundary is not a legal survey.

Quick answer: where should you search?

Use the official Mahoning County Auditor search for owner, address, parcel, valuation, land, building, sale and tax information. Start with one search field, open the correct parcel, save the parcel number, and use the record’s Valuation, Legal, Residential, Agricultural, Commercial, Sales, Land, Improvements, Tax, Tax Payments, Tax Distributions and Special Assessments sections.

1 Search broadly Last name, simple address or parcel number.
2 Verify the result Match address, owner, acres and parcel.
3 Open the right section Value, sale, tax, building or map.
4 Take the action Pay, map, file, transfer or subscribe.
Auditor phone

330-740-2010

Fax: 330-480-7571

Auditor office
120 Market Street
1st Floor
Youngstown, OH 44503
Published hours

Monday–Friday, 8:00 a.m.–4:30 p.m.

Deeds and manufactured homes are transferred daily until 3:00 p.m.

After reviewing the short workflow above, open the official search. Use Advanced Search only when a single owner, address or parcel search does not meet the task.

Open official Mahoning property search Call the Auditor
Official Mahoning County Ohio property search with owner, address, parcel and advanced search fields
Use the official Mahoning County Auditor search to find a property by owner name, street address or parcel number.

Choose the property task you need to complete

This guide is arranged around actions—not a generic collection of county links.

Avoid the wrong portal

Which Mahoning County office handles your question?

Correct office or tool for common property tasks
Your task
Correct office or tool
What it provides
Important limit
Find owner, address, parcel or appraised value
Auditor property search
Property identity, valuation, characteristics, sales and tax information.
Owner display is not a title opinion.
Search sales or groups of properties
Auditor Advanced Search
Sale, location, acreage, year-built, living-area and room filters.
Too many filters can exclude valid results.
Locate the parcel on a map
Mahoning County GIS
Parcel-map context, layers, aerials, tax maps and geographic data.
Boundaries are approximate and not survey-grade.
Pay tax or confirm payment
County Treasurer
Payment portal, phone payment, tax-bill help and installment programs.
The Auditor calculates taxes but does not collect them.
Find a deed, mortgage or lien
County Recorder
Recorded land documents and electronic indexes.
Recorder employees do not perform title searches or give legal advice.
Challenge appraised value
Board of Revision
Formal value-complaint and hearing process.
It does not decide ordinary tax-rate complaints.
Apply for a reduction or agricultural valuation
Auditor forms and information
Homestead, owner occupancy, CAUV, damage and exemption forms.
Each program has separate eligibility and deadlines.
Transfer, split or combine property
Auditor, GIS and Recorder workflow
Conveyance forms, GIS preapproval, deed transfer and recording.
A parcel search is not deed preparation.
Best workflow: Find the parcel with the Auditor, save the full parcel number, then use that same number when contacting the Treasurer, GIS, Recorder or Board of Revision.
Troubleshooting order

No Mahoning County property result found?

Owner name returns nothing Use the last name only. Try a former owner, trust, LLC, estate or alternate spelling.
Address returns nothing Keep only the house number and main street word. Remove direction, suffix, unit and punctuation.
Parcel search fails Copy the full number again and preserve its dashes and decimal point.
The property recently sold Search the seller, review Sales and check the Recorder for the newest deed.
The parcel was split or combined Search the parent parcel, nearby property or map location and contact GIS.
The current bill still shows an old parcel Parcel changes are assessed as of January 1 and may not affect the bill until the following collection year.
The mailing city seems wrong Verify township, municipality, school district and GIS position instead of relying on mailing-city wording.
The map and record disagree Use the parcel page for tax data and recorded deed or survey for legal boundaries.

Prepare this information before calling

Complete property address
Current or former owner
Full parcel number
Approximate sale date
Nearby road or intersection
Township, city or village
Screenshot of the problem
The action you need to complete
Useful Auditor call script “I am trying to identify the parcel at [property address]. The owner may be [name], and I have [parcel number or nearby intersection]. Can you confirm whether the parcel was transferred, split, combined, renumbered or listed under another address?”
Call Auditor: 330-740-2010
Property-record decoder

Understand every important record section

Location Deeded Owner Address Taxpayer Address Valuation Legal Residential Additions Agricultural Commercial Sales Land Improvements Tax Tax Payments Tax Distributions Special Assessments
Property-record sections and what they answer
Section
What it contains
Practical next step
Location
Property location and map access.
Use it to verify the correct parcel before researching values or taxes.
Deeded Owner Address
Address connected with the latest ownership document.
Do not confuse it with the property’s physical address.
Taxpayer Address
Address where county tax correspondence is mailed.
Use the address-change process when correspondence is going to the wrong place.
Valuation
Historical 100% appraised value and 35% taxable value.
Compare years before assuming a value changed incorrectly.
Legal
Legal-description and parcel-reference information.
Use the recorded deed for complete legal-description work.
Residential
Year built, rooms, bedrooms, baths, living area, grade, condition and building features.
Report material factual errors with documentation.
Additions
Attached non-living-area features and appraised amounts.
Check decks, porches, garages and other additions.
Agricultural
CAUV land-pricing information where applicable.
Check program status and renewal when values look unexpected.
Commercial
Commercial-building appraisal information.
Use income, expense, lease and appraisal evidence for a commercial value complaint.
Sales
Recorded transfers, deed type, buyer, seller, amount and valid-sale status.
Do not treat every transfer as an arm’s-length sale.
Land
Land type, acreage, frontage, depth, rate and market value.
Use a survey or deed for legal dimensions.
Improvements
Detached garages, outbuildings and other improvements.
Check size, condition and year built.
Tax
Charges, reductions, credits, special assessments, penalties and amount due.
Use the Treasurer for payment or payoff questions.
Tax Payments
Payment dates, amounts, cycles and receipt numbers.
Check whether a lender or prior owner already paid.
Tax Distributions
Where the parcel’s property tax is distributed.
Use it to understand school, municipal and county shares.
Special Assessments
Project-specific charges separate from ordinary tax.
Contact the responsible project or collection office when details are unclear.
Annual-tax warning: The parcel page states that a simple annual-tax figure may not include CAUV recoupment, special assessments, penalties or interest. Open the full Tax section before quoting the amount.

Print a useful property-record card

Open the correct parcel Reconfirm the address and owner.
Select the orange PRC button This opens the property-record printing options.
Choose Compact Layout Use the green Compact Layout option for a shorter general summary.
Customize when necessary Toggle sections on or off when only certain details are needed.
Save as PDF Keep the full parcel number and date of access with the file.
Value, sale and tax interpretation

Read values, sales and tax details correctly

Website tax data Tax Year 2025

Payable during calendar year 2026.

Last full reappraisal Tax Year 2023

Taxes collected in 2024.

Next triennial update Tax Year 2026

Taxes collected in 2027.

Why values can change without construction

A reappraisal or triennial update studies market conditions and valid sales. A value can also change because of new construction, demolition, Board of Revision action, parcel splits, plats or corrected property facts.

Tax-increase misunderstanding: A percentage increase in market value does not automatically create the same percentage increase in the tax bill. Ohio reduction factors, credits, levies, tax districts and the 20-mill floor can affect the final calculation.

How to evaluate a sale

Sale occurred near the relevant valuation date
Buyer and seller were unrelated
Property was exposed to the open market
No foreclosure or forced-sale condition
No multi-parcel distortion
Similar size, age, use and condition

Read the Tax section line by line

Common Mahoning County tax lines
Tax line
What it means
Question to ask
Charge
Gross tax charged before reductions and credits.
Is the property in the correct tax district?
Reduction
Applicable tax reduction factors.
Did the amount change after a levy or value update?
Non-Business Credit
State-authorized credit on qualifying property.
Does the parcel still qualify?
Owner Occupancy Credit
Reduction for a qualifying principal residence.
Is the owner-occupancy application active?
Homestead
Homestead reduction for an approved applicant.
Was eligibility or income documentation updated?
CAUV Recoupment
Prior tax savings charged after loss or withdrawal of CAUV status.
Was farmland sold, converted or not renewed?
Special Assessments
Project or service charges separate from ordinary real-estate tax.
Which agency placed the assessment?
Penalty / Interest
Late-payment or delinquency charges.
When did the payment post, and is penalty remission available?
Net Due
Current database balance after charges, credits and payments.
Do you need an official payoff from the Treasurer?

The Auditor’s current estimator is specifically designed for tax year 2025 payable in 2026. Enter an appraised value, select the tax district and property type, then choose applicable owner-occupancy or Homestead reductions.

Open the 2025 tax estimator Review Auditor reports
Treasurer payment workflow

Check and pay Mahoning County property tax

Current date notice: The Treasurer’s live page lists the first-half 2025 real-estate tax due date as March 6, 2026 and warns that a 10% penalty applies after the due date. Verify the current second-half deadline on the live Treasurer page rather than guessing from a prior year.

Micro steps for online payment

Find the parcel in the Auditor search Confirm the full parcel number, property address and current Tax section.
Check Tax Payments Look for lender, owner or prior payment activity before submitting another payment.
Open the official Treasurer payment page Avoid an unrelated third-party payment advertisement.
Search and confirm the correct bill Match parcel number and address before entering payment details.
Review the vendor fee The county publishes a 2.5% card fee and a $1.50 electronic-check fee. Confirm the card minimum shown at checkout.
Save the confirmation Record parcel, date, amount, method and confirmation number.
Recheck posting Phone payments are generally posted on the following business day.
Official Mahoning County payment options
Method
How it works
Practical warning
Online
Visa, MasterCard, Discover, electronic check and supported digital wallets.
Third-party service fee applies.
Phone
Call 330-408-6150 for the automated 24/7 system.
Payment posts the following business day.
In person
Treasurer’s Office, 120 Market Street, first floor, Youngstown.
Office hours are 8:00 a.m.–4:30 p.m., weekdays.
Mail
Mail check or money order to Daniel R. Yemma, Treasurer, 120 Market Street, first floor, Youngstown, OH 44503.
Do not mail cash; retain the canceled check as receipt.
AutoPay
Enroll through the payment account for automatic bill payment.
Keep payment information and account balance current.
Scheduled payment
Choose a payment date before the bill due date.
Adjust the date before the scheduled processing date.
Tax Installment Plan
Current taxpayers may pay monthly toward the next half collection.
Contact the Treasurer to confirm enrollment requirements.
Paperless bill option: The Treasurer offers free email tax bills through the payment website. This can help when postal delivery is delayed or unreliable.
Treasurer call script “I am calling about parcel [parcel number] at [address]. I need to confirm the current balance, second-half deadline, whether a payment has posted, and whether AutoPay or the Tax Installment Plan is available.”
Open official online tax payment Review payment methods and fees Call Treasurer: 330-740-2460
GIS and boundary research

Use Mahoning County GIS maps correctly

The county’s GIS page reports parcel information updated July 10, 2026. Use the map for parcel location, geographic context and available layers—not as a legal boundary determination.

Micro steps for GIS parcel research

Find the parcel in the Auditor search Copy the complete parcel number.
Open the JavaScript Map Viewer Use the official GIS page’s map-viewer entry.
Search the parcel number or address Begin with the exact parcel identifier when available.
Zoom to parcel level Countywide views can hide labels and smaller map features.
Turn on relevant layers Compare parcels, aerial imagery, roads, tax maps, school districts and available infrastructure layers.
Compare the map with recorded facts Match acreage, frontage, road position and legal-description clues.
Use a survey for exact boundaries Contact a registered Ohio land surveyor before a fence, building, easement or encroachment decision.
County boundary disclaimer: Mahoning County states that its map is informational only, does not represent an on-the-ground survey and shows only approximate relative property boundaries.

GIS office services and published map fees

Selected Mahoning County GIS map and photo fees
Product
Without aerial image
With aerial image
8.5 × 11 map
$1
$2
11 × 17 map
$4
$6
17 × 22 map
$9
$12
22 × 34 map
$16
$20
34 × 44 map
$25
$35
Digital 24 × 36 tax map
$5
Ask GIS when aerial output is required.
GIS phone

330-740-2455

GIS office
21 W. Boardman Street
Youngstown, OH 44503
GIS hours

Monday–Friday, 8:00 a.m.–4:30 p.m.

Training option: The GIS office advertises on-site map-viewer training for groups of 10 or more. Call 330-740-2455 and ask about GIS website training.
Open Mahoning County GIS Review map services and fees
Recorded land documents

Find deeds, mortgages, liens and older records

Use the Recorder when you need an actual recorded document. The Auditor parcel page helps identify the owner, sale date and parcel, but it does not replace the deed.

Search recorded property documents

Copy parcel-search clues Save the owner, previous owner, sale date, deed type and parcel number.
Open the Recorder’s land-record system Electronic indexes are available beginning in January 1985.
Search both parties Try the buyer and seller, grantor and grantee, and alternate name formats.
Narrow by recording date Use the approximate sale or mortgage date when common names return many results.
Open the recorded image Compare names, legal description, instrument number and parcel references.
Use in-office records for older documents Records before 1985 can be viewed during regular Recorder hours.
Seek title help when needed Recorder staff cannot perform a public-record search or provide legal advice.
Older-record access: Mahoning County states that land records date to the early 1800s. Online electronic indexes begin in January 1985; earlier records are available for on-site review.
Recorder phone

330-740-2345

Fax: 330-740-2347

Recorder office
120 Market Street
1st Floor
Youngstown, OH 44503
Access hours

Office: 8:00 a.m.–4:30 p.m.

Basement self-service: 8:00 a.m.–4:00 p.m.

Do not ask the Recorder to perform a title search. Staff can provide a copy when recording information is known, but users must conduct their own research or obtain professional title assistance.
Open Recorder records and office help
Free property-monitoring tools

Set a Property Ownership Alert correctly

What the online alert actually does It sends subscribers an email after a transfer occurs on a subscribed parcel. It is free, but it does not block the deed, prevent fraud or replace regular property-record monitoring.

Subscribe to a parcel

Find the parcel first Search by owner or address and copy the complete parcel number.
Keep the exact formatting Enter the parcel number with its dashes and decimal point.
Register or log in Use an email address you regularly monitor.
Add the parcel subscription Verify the parcel before saving it.
Renew before expiration Subscription accounts expire two years after creation. Renewing or adding a parcel extends the expiration.
Investigate unexpected alerts Check the Auditor transfer record and Recorder document before assuming fraud.

Stronger in-person Fraudulent Transfer Prevention alert

Mahoning County also describes an in-person alert intended to notify a qualifying owner before an attempted transfer. It is limited to a home the owner occupies as a principal residence.

Appear in person at the Auditor’s Office
Complete the required form
Bring identification
Bring proof of residency, such as mail
Bring a copy of the deed
Property must be the owned principal residence
Important difference: The online Ownership Alert sends notice after a parcel transfers. The in-person Fraudulent Transfer Prevention alert is a separate service intended to flag an attempted transfer earlier.
Subscribe to Property Ownership Alerts Read official alert FAQs
Board of Revision workflow

Challenge an incorrect property value

Current filing status: The deadline for tax year 2025 complaints was March 31, 2026. Filing for tax year 2026 begins January 2, 2027.

The Board of Revision reviews the fair market value of property. It does not decide whether a levy, tax structure, penalty or payment rule is fair.

Check the record before filing

Appraised land and improvement values
35% taxable value
Living area and room count
Year built, grade and condition
Garage and outbuilding records
Recent sale and valid-sale status
Comparable properties
Damage or demolition evidence

Evidence identified by Mahoning County

Evidence that can support a value complaint
Evidence
Useful detail
Preparation reminder
Recent sale
Closing statement, purchase agreement and conveyance statement for a sale within roughly 24 months.
Prepare a signed, notarized statement when required to show it was arm’s length.
Certified appraisal
Professional opinion prepared for tax-valuation purposes.
Use a value date relevant to the complaint year.
Condition evidence
Photographs and professional repair estimates.
Show how the condition affects market value.
Construction costs
Builder-certified costs for newer construction, generally five years old or less.
Separate land, site and unusual costs where possible.
Commercial income records
Leases, rent rolls and up to three years of income and expense statements.
Organize the information by year and property.

File and confirm receipt

Use the current DTE complaint packet Download it from the Forms section when the filing period opens.
Complete every required field Clearly state the current value, requested value and reason.
Attach organized evidence Label each document and connect it to the requested value.
Submit by mail or in person The county lists mail as the preferred method and also accepts in-person filing.
Obtain a date-stamped copy In-person filers receive one; mailed filers should receive a scanned or mailed stamped page.
Follow up when confirmation does not arrive The filer is responsible for verifying that the Board received the complaint.
Board of Revision call script “I am preparing a complaint for parcel [parcel number]. I believe the fair market value should be [amount] because of [sale, appraisal, factual error or condition evidence]. Can you confirm the filing year, deadline, current form and receipt-confirmation process?”
Review Board of Revision instructions Open Board of Revision forms Call 330-740-2010
Tax reductions, farmland and damaged property

Find Homestead, owner occupancy, CAUV and damage forms

Common Mahoning County property forms
Form or program
Use
Important preparation
DTE 105A
Homestead application for qualifying seniors, disabled persons and surviving spouses.
Review current ownership, occupancy, age, disability and income rules.
DTE 105E
Certificate of disability for Homestead.
Obtain the required disability certification.
DTE 105H
Income addendum for Homestead.
Use the correct income year and documentation.
DTE 105I
Disabled-veteran and surviving-spouse Homestead application.
Include required veteran or spouse documentation.
DTE 105C
Owner Occupancy Tax Reduction.
Property must be the qualifying principal residence.
DTE 26
Valuation deduction for destroyed or damaged real property.
Document the date, cause and extent of damage.
DTE 23A
Request remission of late-payment penalties.
Explain the qualifying reason and include payment evidence.
DTE 23
Real Property Tax Exemption and Remission.
Check ownership, property use, tax status and filing year.

CAUV qualification

Ten acres or more
  • Land generally must have been devoted to commercial agricultural use for the prior three years.
  • Qualifying activities include crops, livestock, poultry, nursery, timber and other approved uses.
  • Each farming unit with identical ownership requires its own application.
Less than ten acres
  • The same agricultural-use requirement applies.
  • Average annual gross agricultural income must generally be at least $2,500.
  • Anticipated income evidence may be accepted during the initial qualifying period.
CAUV filing and recoupment: The initial DTE 109 must be received after the first Monday in January and before the first Monday in March. “Filed” means received—not merely postmarked. Loss or withdrawal of qualification can trigger three years of tax recoupment.

CAUV search and renewal checklist

Confirm identical ownership across the farm unit
Confirm qualifying agricultural use
Measure qualifying acreage
Prepare income proof when under ten acres
Identify conservation or woodland acreage
File before the first Monday in March
Renew every year
Report transfers and land-use changes

Destroyed or demolished property

If a structure was damaged or destroyed, keep photographs, insurance records, contractor estimates, demolition permits and the date of the event. Taxes are collected one year behind, so a building that existed on January 1 of the tax year may still appear on the current bill.

Demolition without a permit: The Auditor directs owners to use DTE 26 when a demolition permit was not obtained or when qualifying damage needs to be reported for valuation review.
Open all current Auditor forms Review CAUV rules Open Homestead forms
Transfers, splits and parcel changes

Transfer, split or combine Mahoning County property

A property transfer may involve the Auditor, GIS and Recorder. Use the correct deed, conveyance form, GIS control documents and current county standards instead of relying on the parcel-search page alone.

Transfer workflow

Prepare or obtain the deed Use professional help when legal description, title, trust or exemption questions exist.
Confirm the parcel number and owner Match the deed with the Auditor property record.
Complete DTE 100 or DTE 100EX Use the statement of value for taxable transfers or the exemption-reason form when applicable.
Review the county transfer checklist Check signatures, acknowledgments, parcel descriptions and supporting affidavits.
Use GIS preapproval when required Splits, new descriptions and certain transfers may require GIS review and control forms.
Calculate the current conveyance cost Enter parcel count and sale price in the county calculator.
Submit before the daily transfer cutoff The Auditor states that deeds are transferred until 3:00 p.m.
Record the accepted instrument The Recorder completes the official land-record step.
Parcel-change timing: A split or combination recorded during one year may not appear on the tax bill until the following tax year because property status is measured as of January 1.
Payment warning: The Auditor accepts cash, checks and credit/debit cards. The published card fee is 2.4% with a $1.49 minimum. Confirm the fee and accepted method for the exact transaction before visiting.
Use the conveyance-fee calculator Open transfer forms and standards
Office routing and visit help

Mahoning County property contacts, hours and addresses

Contact the office that controls the next action
Office
Use it for
Phone
Address and hours
Auditor
Parcel search, values, tax calculation, forms, CAUV, Homestead, BOR and transfers.
330-740-2010
Fax: 330-480-7571
120 Market St., 1st Floor, Youngstown, OH 44503
8:00 a.m.–4:30 p.m.
Treasurer
Tax payment, billing, penalties, posting, AutoPay and installment plans.
330-740-2460
Fax: 330-740-2142
120 Market St., 1st Floor, Youngstown, OH 44503
8:00 a.m.–4:30 p.m.
Recorder
Deeds, mortgages, liens, recorded documents and older land records.
330-740-2345
Fax: 330-740-2347
120 Market St., 1st Floor, Youngstown, OH 44503
8:00 a.m.–4:30 p.m.
GIS
Parcel viewer, maps, aerials, data, tax maps and training.
330-740-2455
21 W. Boardman St., Youngstown, OH 44503
8:00 a.m.–4:30 p.m.
New address help
Contact the local zoning office; areas without zoning may contact Emergency Management.
330-740-2200
Use only when the local jurisdiction does not issue the address.

Bring or include these details

Full parcel number
Property address
Owner name
Relevant tax year
Sale or recording date
Form or program name
Screenshot of the issue
Supporting documents
One useful script for any property office “I am contacting you about parcel [parcel number] at [address]. I need help with [search, value, tax, deed, map, alert, exemption or transfer]. The public record currently shows [brief fact]. Which office, form or official tool should I use next?”
Nearby county troubleshooting

Could the property be recorded in a neighboring county?

Mailing addresses and border roads can cause users to search the wrong county. Use these guides only when the property may sit outside Mahoning County.

Trumbull County

Useful for parcels near northern Mahoning County and the Youngstown–Warren area.

Trumbull County property search guide
Columbiana County

Useful for properties near southern and southeastern Mahoning County.

Columbiana County property search guide
Stark County

Useful for parcels near western Mahoning County or Alliance-area border questions.

Stark County property search guide
Portage County

Useful for properties near northwestern county-border areas.

Portage County property search guide
Important record limits

What the online property record cannot prove

Useful for
  • Finding a parcel
  • Reviewing appraisal facts
  • Checking sales and tax history
  • Opening map tools
  • Preparing office questions
Get additional verification for
  • Legal ownership
  • Exact boundaries
  • Marketable title
  • Official closing payoff
  • Legal-description drafting
Responsible-use warning: Do not contact, accuse or publish personal conclusions about someone from a same-name property result. Confirm the parcel and use public property information lawfully.
Ten practical answers

Mahoning County property search FAQs

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

Open the official Mahoning County Auditor Advanced Search and enter the owner’s name in last-name-first-name order. Start with the last name only, then add the first name if too many results appear.

Can I search a Mahoning County property using only an address?

Yes. Begin with the house number and main street name. If no result appears, remove the direction, street suffix, punctuation and unit number before searching again.

What should I save after finding a Mahoning County parcel?

Save the parcel number, property address, owner name, appraised value, acreage, legal-description clues, tax district, latest transfer and property-record card.

Why is a recent buyer not shown as the property owner?

A recorded deed and the Auditor’s public parcel display may not update at exactly the same time. Search the former owner, review the Sales section and use the Recorder’s records when legal ownership proof is needed.

Are Mahoning County GIS property lines legally exact?

No. The county states that GIS parcel boundaries are approximate and unsuitable for legal, engineering or surveying purposes. Exact boundaries should be established by an Ohio-registered land surveyor.

What tax year is displayed in the Mahoning County property search?

The Auditor currently states that property values and taxes shown on the website are for tax year 2025, payable in calendar year 2026.

How do I challenge a Mahoning County property value?

Review the parcel facts, gather market-value evidence and file a Board of Revision complaint during the applicable filing period. Tax year 2025 complaints closed March 31, 2026, and tax year 2026 filing begins January 2, 2027.

How does the Mahoning County Property Ownership Alert work?

The free service sends an email after a subscribed parcel transfers. It does not stop a deed transfer or guarantee protection from fraud. The parcel number must be entered with its dashes and decimal point.

Where can I find Mahoning County deeds and mortgages?

Use the Mahoning County Recorder for deeds, mortgages, liens and other recorded land documents. Electronic indexes are available from January 1985 forward, while older records can be viewed at the Recorder’s Office.

What is the Mahoning County Auditor phone number and address?

The Mahoning County Auditor’s phone number is 330-740-2010. The office is at 120 Market Street, first floor, Youngstown, Ohio 44503, and is open Monday through Friday from 8:00 a.m. to 4:30 p.m.

Information checked July 20, 2026: Property-search fields, record sections, tax-year notice, Auditor and Treasurer contacts, payment methods, GIS update and disclaimer, Recorder coverage, Ownership Alert rules, Board of Revision dates, CAUV requirements and forms were checked against official Mahoning County pages.
Independent guide: CountyAuditors.org is not the Mahoning County Auditor, Treasurer, Recorder, GIS Department or Board of Revision. Live ownership, value, payment, map, filing and document information is controlled by the responsible government office. Online property records should not replace legal, title, surveying, appraisal, 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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