Maryland Tax Assessment Office: Contact & Search

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Maryland · SDAT · Real Property Search · Assessments · Appeals · Tax Credits

Search the Property and Reach the Right Maryland Assessment Office

Maryland handles real-property assessment differently from many states. Property values are administered by the State Department of Assessments and Taxation (SDAT) through 24 local State assessment offices—one for each county plus Baltimore City—rather than a separate county assessor system.

Use this guide to search the official Real Property Data Search correctly, decode the Property Account Number, find your local assessment office, understand the three-year assessment cycle, check 2026 tax-credit deadlines, appeal a value, locate deed and plat records, or route an actual tax-payment question to the local government office that collects the bill.

Start property search Find assessment office Appeal an assessment
Maryland search rule most people miss: SDAT’s Real Property Data Search does not provide an owner-name search. You also cannot search directly by town, neighborhood, subdivision or ZIP code. Start with the county plus street address, Property Account Identifier, or another supported search method.

Quick answer: use SDAT for value and property data

Select the Maryland county or Baltimore City in the official Real Property Data Search, choose a search method, find the property, then save the district/account identifier, current market value, phase-in assessment, deed reference and Homestead status. Contact the local SDAT assessment office if the record is wrong or you need valuation help.

1 Select jurisdiction Choose the county or Baltimore City before entering property information.
2 Search correctly Address, PAN, map reference or other supported method—not owner name.
3 Save the record Copy account ID, value, deed reference and assessment year.
4 Route the next task SDAT for value; local finance for bills; Circuit Court records for deeds.

Maryland assessment facts

Assessment agency Maryland SDAT
Local assessment offices 24
Assessment cycle Every 3 years
Valuation basis Fair market / full cash value
Assessment appeal 45 days from notice
Annual tax payment Without interest through Sep. 30
2nd semiannual payment Dec. 31
2026 HTC deadline Oct. 1, 2026
SDAT main phone 410-767-1184
Maryland toll-free 888-246-5941
Portal timing: SDAT warns that Real Property Data Search may be unavailable before 7:00 a.m. for maintenance. If a valid search suddenly fails early in the morning, retry later before assuming the property is missing.
Open official SDAT property search Read official search instructions

Choose your Maryland property task

Jump to the section that matches what you actually need to finish.

Maryland office router

Assessment, tax payment and deed questions go to different offices

S
SDAT SEARCH Owner display
Value
PAN
Sales
A
LOCAL SDAT Assessment
Corrections
Appeals
Property data
$
LOCAL FINANCE Tax bill
Payment
Balance
Delinquency
D
LAND RECORDS Deed
Mortgage
Lien
Release
C
TAX CREDITS Homestead
Homeowners
Renters
Status
Which Maryland office should answer the question?
Your goal
Start here
What that office provides
Important limit
Find owner display, value, acreage or building data
SDAT Real Property Data Search
Assessment record, current value, phase-in values, transfers and deed reference.
SDAT says online records are informational and not legal reports or documents.
Correct property characteristics or discuss value
Local SDAT assessment office
Property worksheet, valuation explanation, corrections and first-level appeal.
SDAT does not set the local property-tax rate.
Pay taxes or check amount due
County/Baltimore City billing and collection office
Live bill, payment status, penalties, service charges and delinquency information.
The SDAT search does not contain the official current tax bill.
Find a deed, mortgage, release or easement
Maryland Land Records / Clerk of Circuit Court
Recorded land instruments and images.
A tax-assessment owner display is not a title examination.
Find a subdivision or condominium plat
PLATS.NET
Recorded survey, subdivision and condominium plats.
Online tax maps themselves are not property surveys.
Apply for Homestead or 2026 income-based tax credit
SDAT / Maryland OneStop
Applications, status and tax-credit administration.
Homestead and Homeowners’ Tax Credit are different programs.
Maryland-specific takeaway: if another website tells you to call a “county assessor,” verify that wording. Maryland real-property assessment is administered by the State through local SDAT assessment offices.
Portal quirks & troubleshooting

Why the Maryland property search returns nothing

You searched by owner Switch to street address, Property Account Identifier or another supported search method.
You included “North,” “South” or “NW” Remove street directionals from the search field.
You typed “Road,” “Street” or “Avenue” Remove the street suffix and try the core name.
Exact street spelling is uncertain Truncate the street name and add an asterisk, as documented by SDAT.
Street number does not match Search the street without the house number and inspect possible results.
Account was deleted SDAT says deleted accounts can only be searched by Property Account Identifier.
Search fails before 7 a.m. The system may be unavailable for scheduled maintenance. Retry later.
Anne Arundel or Baltimore City PAN fails These jurisdictions use special account-number structures; use the specific format from your notice.
2026 security reminder: SDAT’s Real Property Search was temporarily taken offline in April 2026 after suspicious activity was detected. Maryland announced on April 27, 2026 that the system had been tested and cleared for public use. The State specifically advised residents to use trusted Maryland government links rather than unofficial property-record sites.
Manual-use rule: the SDAT portal’s terms prohibit automatic or robotic extraction and scraping. Use the public interface for ordinary property research.
Property Account Number

Decode the Maryland PAN before calling an office

Maryland uses the Property Account Number—also called Property Account Identifier, account number, Acct# or PAN—to identify the assessment account. In many counties the number combines a county code, assessment district and account number.

Most counties

County code + assessment district + account identifier.

Example structure from SDAT: county 01, district 02, account 123456.

Anne Arundel County

Uses county code 02 plus district, subdivision and an eight-digit account number.

Baltimore City

Uses county code 03 plus ward, section, block and lot rather than the ordinary county account format.

Maryland county codes

County code used with Maryland property-account identification
Code
Jurisdiction
Code
Jurisdiction
01
Allegany
13
Harford
02
Anne Arundel
14
Howard
03
Baltimore City
15
Kent
04
Baltimore County
16
Montgomery
05
Calvert
17
Prince George’s
06
Caroline
18
Queen Anne’s
07
Carroll
19
St. Mary’s
08
Cecil
20
Somerset
09
Charles
21
Talbot
10
Dorchester
22
Washington
11
Frederick
23
Wicomico
12
Garrett
24
Worcester
Assessment-notice trick: letters printed after the Property Account Identification Number can be internal-use characters and may not be part of the PAN. Follow the exact SDAT instructions rather than blindly copying the entire printed line into the search field.
Assessment mechanics

Maryland values real property at fair market value

This is not Ohio’s 35% assessment system

Maryland law requires taxable real property to be assessed using a fair-market-value standard. SDAT’s Real Property Data Search describes the Current Value as the property’s full cash value as of the most recent assessment.

The tax rate is then applied to the applicable phased-in or taxable assessment. Local governments—not SDAT—establish the local tax rates that ultimately determine the bill.

The three-year reassessment cycle

01
REAPPRAISE SDAT values each real property account once during every three-year cycle.
02
NOTICE Owner receives old and new market-value information.
03
PHASE-IN An increase in full cash value is generally phased in over the next three tax years.
04
CREDITS Homestead or other applicable credits can affect taxable assessment or tax due.
05
TAX BILL Local government applies its rates and issues/collects the bill.
FULL CASH VALUE SDAT appraisal PHASE-IN 3-year increase TAX CREDITS If eligible LOCAL RATE County / city TAX BILL Local collector

Fields worth checking on the property record

Maryland SDAT property-record decoder
Field
What it means
Why you should check it
Current Value
Full cash value from the most recent assessment.
Primary market-value figure to review when considering an appeal.
Base Value
Full cash value determined before the most recent assessment.
Used with current value to calculate phase-in assessments.
Phase-in Assessment
Assessment amount being moved toward a higher new value over the cycle.
Can differ from the headline current market value.
Principal Residence
Indicates whether SDAT treats the property as the owner’s principal residence.
Important for Homestead and other tax-credit eligibility.
Deed Reference
Liber/book and folio/page reference to the recorded deed.
Provides a direct bridge to Maryland Land Records.
Transfer Information
Seller, date, price and transaction classification.
Not every transfer is an arm’s-length market sale.
Property Land Area
Land area in acres or square feet.
Incorrect acreage can affect valuation and research.
Homestead Status
Shows whether the one-time Homestead application has been received/approved or is missing.
New owners should verify this rather than assume eligibility transferred automatically.
An assessment increase is not automatically the same percentage increase in your tax bill. Local rates, phase-in rules, Homestead limits, credits and other charges all affect the amount actually billed.
Maryland 2026 tax dates

Know the payment dates—but pay the local tax office, not SDAT

Tax year begins July 1, 2026

Maryland real property tax is due for the taxable year.

Annual / first installment September 30, 2026

Generally payable without interest through this date.

Second semiannual December 31, 2026

Eligible semiannual second installment may be paid without interest through this date.

Principal-residence payment option: Maryland’s semiannual system allows an eligible principal-residence owner to pay part of the tax by September 30 and the remaining installment by December 31. A service charge may apply to the second installment depending on the local approved schedule.

Before making a payment

Confirm the correct county or Baltimore City account
Match PAN and premises address
Verify whether bill is annual or semiannual
Check whether escrow already paid
Review service charge, interest and penalties
Use the local government’s official payment portal
Save payment confirmation
Recheck account after processing
Local tax office call script “I am calling about Maryland property account [PAN] at [property address]. Can you confirm the 2026 tax balance, whether the account is annual or semiannual, the next amount due, any service charge or interest, and whether an escrow or prior payment has posted?”
Find local tax billing office Read semiannual payment guidance
2026 tax-credit action

Homestead and Homeowners’ Tax Credit are different programs

Maryland property tax-credit comparison
Program
What it does
Application pattern
2026 action
Homestead Tax Credit
Limits annual increases in taxable assessment on an eligible principal residence.
One-time eligibility application; remains in place while requirements continue to be met.
Check status in SDAT property record and file if it says No Application.
Homeowners’ Property Tax Credit
Income-based credit against qualifying real property tax.
New application each year.
Final filing deadline October 1, 2026.
Renters’ Tax Credit
Can provide a direct payment to qualifying Maryland renters.
New application each year.
Final filing deadline October 1, 2026.

Homestead Tax Credit

Market value can still rise

Homestead does not freeze the SDAT market value. Instead, it limits how much of an eligible annual assessment increase is taxable for the principal residence.

≠
Taxable assessment is capped

Maryland requires each county and municipality to use a Homestead taxable-assessment cap of 10% or less; the State portion uses 10%.

Search your property in SDAT Scroll to the Homestead Application Information section.
Read the status exactly Approved or Application Received generally means no new action is required for the eligibility filing.
If it says No Application, file Maryland OneStop provides the current online Homestead eligibility application.
Use the correct PAN The Homestead application requires the property identification number.
Keep principal-residence information consistent SDAT may compare the application with Maryland income-tax and motor-vehicle information.

2026 Homeowners’ Property Tax Credit

Early filing April 15, 2026

Deadline to potentially place an approved, non-audited credit directly on the July bill has passed.

Final filing October 1, 2026

2026 application remains open through the final deadline.

Application fee $0

Maryland OneStop lists an estimated 30–90 day approval time.

Principal residence Applicant generally must occupy or expect to occupy the property for more than six months of the tax year, including July 1, subject to stated exceptions.
Legal interest Applicant must have a qualifying legal interest in the property.
$200,000 net-worth limit For 2026, specified net worth excludes the subject home and qualifying retirement savings.
$60,000 household income limit The 2026 application uses calendar-year 2025 household income.
Large-property warning: the Homeowners’ Property Tax Credit does not automatically apply to taxes on excess acreage, separate business-use portions or every fixed charge appearing on the tax bill.
File/check Homestead application Open 2026 Homeowners’ Tax Credit Compare Maryland tax credits
Assessment appeal

Appeal the market value—not simply the size of the tax bill

Primary deadline: if you receive a Maryland Notice of Assessment and disagree with the Total New Market Value, the first appeal must be filed within 45 days of the notice date.
NOTICE 45-day clock SUPERVISOR Local SDAT appeal PTAAB 30 days TAX COURT 30 days

Four first-level hearing options

Written appeal Submit evidence in writing. SDAT’s current notice says written appeals receive expedited service.
Telephone hearing Local office schedules a date and time for the assessment discussion.
Video hearing Current notice identifies Google Meet as the supported conferencing service.
In-person hearing Available when scheduled by the local assessment office.

Evidence that addresses value

Property worksheet errors Wrong square footage, bathrooms, fireplaces, basement, quality, land area or other characteristics.
Comparable sales Recent sales of genuinely similar properties near the applicable valuation date.
Physical condition Dated photographs, inspection findings or significant condition issues not reflected in the record.
Recent purchase An arm’s-length purchase can be relevant evidence when circumstances and timing support it.
Land characteristics Access, use limitations, acreage errors or other market-value factors.
Professional evidence Appraisal or other credible valuation evidence when appropriate.
Free evidence from SDAT: at the first appeal level, the Department provides the subject property’s worksheet and an Area Sales Listing at no charge before the hearing. Comparable-property worksheets may be available for a nominal fee.
Weak appeal arguments: SDAT specifically says the first-level value appeal should not focus on the prior assessment, percentage increase, amount of the tax bill, metropolitan charges, or level of government services. Focus on whether the Total New Market Value is wrong.

Other appeal windows

Maryland assessment appeal timing
Situation
Deadline
What to know
New reassessment notice
45 days from notice date
Use online control/notice numbers or return the appeal form to the local assessment office.
Non-reassessment year Petition for Review
First working day following January 1
Useful when events since the last assessment may have reduced value.
Purchase transferred Jan. 1 through June 30
60 days from transfer
The deed must be recorded for the office to proceed.
Appeal to PTAAB after Supervisor decision
30 days from final notice
PTAAB is separate from SDAT and does not charge a filing fee.
Appeal PTAAB order to Maryland Tax Court
30 days from PTAAB decision
Proceeding is more formal and requires appearance.
Assessment-office call script “I received an assessment notice for property account [PAN]. The notice date is [date], and I am reviewing the Total New Market Value. Can you confirm my 45-day deadline, provide the property worksheet and Area Sales Listing, and tell me whether my appeal should be written, phone, video or in person?”
File assessment appeal online Read full appeal process Read Property Owner’s Bill of Rights
Deeds, mortgages & plats

Use the SDAT deed reference to jump into Maryland Land Records

Find the property in SDAT Save owner display, county, PAN and deed reference.
Read the liber and folio Maryland’s Deed Reference identifies the book/liber and page/folio used to locate the recorded instrument.
Open the current Maryland Land Records site The Maryland State Archives launched a newer land-record system in late 2025. Use the current landrec.msa.maryland.gov address.
Create or use the free account The system requires a verified email login.
Search by the strongest record clue Use grantor/grantee, recording reference or the county-specific tools provided by Maryland Land Records.
Move to PLATS.NET when needed Use the plat reference from SDAT or the deed to locate a subdivision, survey or condominium plat.
Address-search limitation in Maryland Land Records: the State Archives explains that direct block/street-address searching in the land-record system is available for Baltimore City. For other counties, first locate the address in SDAT and use the resulting deed or owner information.
Map warning: SDAT’s property map says the map was compiled from deed descriptions and plats and is not a property survey. Do not use it as the legal basis for a boundary, fence, building setback or conveyance description.
Open Maryland Land Records Open PLATS.NET
24 local SDAT offices

Find your Maryland real-property assessment office

Contact the office for the jurisdiction where the property is physically located. These offices handle real-property assessment questions, property-record corrections, worksheets, reassessment discussions and first-level appeals.

Baltimore City travel alert: SDAT was still displaying an August 18, 2026 notice stating that the Baltimore City Assessment Office was closed to the public because of an outage but remained available by phone at 410-767-8250. Because this is a temporary operational notice, verify current access before traveling.
Maryland local real property assessment office contacts
Jurisdiction
Phone
Office address
Normal published hours
Allegany County
301-777-2108
112 Baltimore Street, 3rd Floor, Cumberland, MD 21502
Mon–Fri · 8:00 a.m.–4:30 p.m.
Anne Arundel County
410-974-5709
45 Calvert Street, 3rd Floor, Annapolis, MD 21401
Mon–Fri · 8:00 a.m.–4:30 p.m.
Baltimore City
410-767-8250
William Donald Schaefer Tower, 6 Saint Paul Street, 11th Floor, Baltimore, MD 21202
Normally 8:00 a.m.–5:00 p.m.; verify current outage status before visiting.
Baltimore County
410-512-4900
Hampton Plaza, 300 E. Joppa Road, Suite 602, Towson, MD 21286
Mon–Fri · 8:00 a.m.–4:30 p.m.
Calvert County
443-550-6840
200 Duke Street, Room 1200, Prince Frederick, MD 20678
Mon–Fri · 8:00 a.m.–4:30 p.m.
Caroline County
410-819-4450
207 South 3rd Street, Denton, MD 21629
Mon–Fri · 8:00 a.m.–4:30 p.m.
Carroll County
410-857-0600
15 E. Main Street, Suite 229, Westminster, MD 21157
Mon–Fri · 8:00 a.m.–4:30 p.m.
Cecil County
410-996-2760
170 East Main Street, Elkton, MD 21921
Mon–Fri · 8:00 a.m.–4:30 p.m.
Charles County
301-932-2440
101 Catalpa Drive, Suite 101A, La Plata, MD 20646
Mon–Fri · 8:00 a.m.–4:30 p.m.
Dorchester County
410-228-3380
501 Court Lane, Cambridge, MD 21613
Mon–Fri · 8:00 a.m.–4:30 p.m.
Frederick County
301-815-5350
5310 Spectrum Drive, Suite E, Frederick, MD 21703
Mon–Fri · 8:00 a.m.–4:30 p.m.
Garrett County
301-334-1950
County Courthouse, 317 East Alder Street, Room 106, Oakland, MD 21550
Mon–Fri · 8:00 a.m.–4:30 p.m.
Harford County
410-836-4800
2 South Bond Street, Suite 400, Bel Air, MD 21014
Mon–Fri · 8:00 a.m.–4:30 p.m.
Howard County
410-480-7940
3451 Court House Drive, Ellicott City, MD 21043
Mon–Fri · 8:00 a.m.–4:30 p.m.
Kent County
410-778-1410
114-A Lynchburg Street, Chestertown, MD 21620
Mon–Fri · 8:00 a.m.–4:30 p.m.
Montgomery County
240-314-4510
30 W. Gude Drive, Suite 400, Rockville, MD 20850
Mon–Fri · 8:00 a.m.–4:30 p.m.
Prince George’s County
301-952-2500
14735 Main Street, Suite 354B, Upper Marlboro, MD 20772
Mon–Fri · 8:00 a.m.–4:30 p.m.
Queen Anne’s County
410-819-4160
120 Broadway, Suite 7, Centreville, MD 21617
Mon–Fri · 8:00 a.m.–4:30 p.m.
St. Mary’s County
301-880-2900
23110 Leonard Hall Drive, Room 2059, Leonardtown, MD 20650
Mon–Fri · 8:00 a.m.–4:30 p.m.
Somerset County
410-651-0868
11545 Somerset Avenue, Princess Anne, MD 21853
Mon–Fri · 8:00 a.m.–4:30 p.m.
Talbot County
410-819-5920
29466 Pintail Drive, Suite 12, Easton, MD 21601
Mon–Fri · 8:00 a.m.–4:30 p.m.
Washington County
301-791-3050
3 Public Square, Hagerstown, MD 21740
Mon–Fri · 8:00 a.m.–4:30 p.m.
Wicomico County
410-713-3560
201 Baptist Street, Box 8, Salisbury, MD 21801
Mon–Fri · 8:00 a.m.–4:30 p.m.
Worcester County
410-632-1196
1 West Market Street, Room 1202, Snow Hill, MD 21863
Mon–Fri · 8:00 a.m.–4:30 p.m.
Before visiting: operational closures, holidays and temporary building restrictions can override regular hours. Call the local office first when you are traveling specifically for an appeal, worksheet or property-record correction.
Verify current local office directory
Statewide SDAT contact

Use the central office for general Maryland SDAT questions

Main phone

410-767-1184

Outside Baltimore Metro

1-888-246-5941

Maryland Relay

1-800-735-2258

General email

sdat.411@maryland.gov

Department address
Maryland Department of Assessments and Taxation
700 East Pratt Street
Suite 2700
Baltimore, MD 21202-6377
For a property-specific question

SDAT itself directs property owners to the local assessment office where the property is located. Have the PAN, property address and assessment notice available before calling.

SDAT call script “I need help with Maryland real property account [PAN] in [county/Baltimore City]. I am calling about [property search / assessment notice / correction / appeal / Homestead / tax credit]. The property address is [address]. Should this be handled by the local assessment office, the tax-credit unit or another office?”
Open official SDAT contact page Understand Maryland vs other county office systems
Before you rely on the record

Know what the SDAT page can—and cannot—prove

Good uses of SDAT data
  • Identify the property account
  • Review public owner display
  • Check current and base market values
  • Review phase-in assessment
  • Check land and improvement characteristics
  • Find deed and plat references
  • Review transfer history
  • Check Homestead application status
Use another source for
  • Official current tax amount due
  • Payment receipt or delinquency payoff
  • Legal proof of title
  • Complete lien interpretation
  • Professional boundary determination
  • Permit approval or zoning determination
  • Certified land-record copies
  • Legal advice on ownership disputes
SDAT’s own disclaimer matters: Real Property Data Search records are provided for information purposes and are not intended to be used as legal reports or documents.
10 practical questions

Maryland tax assessment office FAQs

What is the official Maryland property assessment search?

Use the Maryland State Department of Assessments and Taxation Real Property Data Search at sdat.dat.maryland.gov. Select the county or Baltimore City first, choose a supported search method, and verify the returned Property Account Number and premises address.

Can I search Maryland SDAT property records by owner name?

No. SDAT’s official search instructions state that the online Real Property Data Search cannot be searched by owner’s name, town, neighborhood, subdivision or ZIP code. Use the property address, Property Account Identifier, map reference or another supported method.

Why is my Maryland property address not showing in SDAT?

Remove directional words such as North or West and remove street suffixes such as Road or Avenue. If the exact street name still fails, use a truncated street name followed by an asterisk. You can also omit the house number because the officially assigned number may differ from the number commonly used.

Who should I call about a Maryland property assessment?

Contact the local SDAT real-property assessment office for the county or Baltimore City where the property is located. Maryland operates 24 local State assessment offices. The statewide SDAT number is 410-767-1184, or 1-888-246-5941 outside the Baltimore metro area.

Does Maryland have county assessors?

Maryland’s real-property assessment system is administered by the State Department of Assessments and Taxation through local State assessment offices. Counties and Baltimore City generally use the certified assessment to calculate and collect local property tax.

How often is Maryland real property reassessed?

Maryland real property is valued once in every three-year assessment cycle. The Current Value in the SDAT record represents full cash value from the most recent assessment, and increases are generally phased in across the following three tax years.

When are Maryland property taxes due in 2026?

Property tax for the taxable year is due July 1. Annual bills and eligible first semiannual installments may generally be paid without interest through September 30, 2026. The second eligible semiannual installment may generally be paid without interest through December 31, 2026. Payment and live balance questions belong to the appropriate local tax billing and collection office.

How long do I have to appeal a Maryland assessment notice?

You generally have 45 days from the date of a reassessment notice to file the first appeal. The first level is handled through the local SDAT assessment office. Subsequent appeals to the Property Tax Assessment Appeals Board and Maryland Tax Court generally have 30-day filing windows from the preceding decision.

What is the difference between Maryland Homestead and Homeowners’ Property Tax Credit?

The Homestead Tax Credit limits annual increases in taxable assessment for an eligible principal residence and uses a one-time eligibility application. The Homeowners’ Property Tax Credit is an income-based program that requires a new application each year. The final 2026 Homeowners’ credit deadline is October 1, 2026.

Where do I find the deed after locating a property in SDAT?

Copy the Deed Reference from the SDAT property record and use Maryland Land Records, operated through the Maryland State Archives and Circuit Court Clerks. Use PLATS.NET when you need a recorded subdivision, survey or condominium plat.

Information reviewed August 25, 2026: Maryland Real Property Data Search behavior, address-search rules, Property Account Number structure, three-year reassessment law, assessment appeal deadlines, current assessment-office contacts, 2026 Homeowners’ and Renters’ Property Tax Credit deadlines, Homestead rules, Maryland property-tax payment timing, Maryland Land Records and PLATS.NET workflows were checked against current Maryland government, Maryland State Archives and Maryland Judiciary resources.
Independent Guide — Legal & Accuracy Disclaimer: CountyAuditors.org is an independent informational directory. It is not the Maryland Department of Assessments and Taxation, a Maryland county government, Baltimore City, a local assessment office, tax collector, Clerk of Circuit Court, Maryland State Archives, Property Tax Assessment Appeals Board or Maryland Tax Court. This website does not determine assessment values, collect property taxes, approve tax credits, record deeds or decide appeals. Verify live balances, office access, filing deadlines, property characteristics, tax-credit eligibility, legal title and appeal requirements directly with the responsible official agency before acting.
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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