Maryland Tax Assessment Office: Property Search & Contact

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

Find Your Maryland Assessment Office and Property Record

Maryland uses a statewide assessment system. The State Department of Assessments and Taxation—SDAT—values real property, maintains the public Real Property Data Search and operates local assessment offices for Maryland’s counties and Baltimore City.

This guide shows exactly how to search the SDAT database, why owner-name searches do not work, how to enter a Maryland address or Property Account Number correctly, what Base Value and Phase-in Assessment mean, which 2026 deadlines still matter, and when to contact SDAT, your county tax office or Maryland Land Records instead.

Start property search Find assessment office Check 2026 deadlines
Maryland office-routing rule: SDAT determines the real-property assessment, but SDAT does not issue your county property-tax bill or collect the payment. For the amount due, receipt, delinquency or payment question, use the county or municipal tax billing/collection office where the property is located.

Quick answer: search SDAT by county first

Open Maryland’s official Real Property Data Search, select the county or Baltimore City, then choose a search method. Search by street address or Property Account Identifier when you know the parcel. The public SDAT search does not support owner-name, town, neighborhood, subdivision or ZIP-code searches.

1 Select county The portal will not search statewide without a jurisdiction.
2 Choose search type Address, Property Account Identifier or supported map reference.
3 Open full record Review values, phase-in, sales, deed and credit status.
4 Route next task Assessment, bill, deed, map, appeal or tax credit.

Maryland statewide facts

Assessment agency Maryland SDAT
Assessment basis 100% full cash / fair market value
Reassessment cycle Every 3 years
2026 reassessment Group 2
Search by owner? No
Principal-residence installment 1 September 30
Principal-residence installment 2 December 31
Homeowners Credit deadline October 1, 2026
Real Property HQ 410-767-1199
SDAT headquarters 410-767-1184
Open official Real Property Search Find local assessment office

Choose the Maryland property task

Property assessment, tax collection and recorded land documents are connected, but they are not controlled by the same office.

Maryland office router

Assessment, tax bill and deed research go to different offices

A
SDAT Assessment
Property data
Value
Appeals
$
LOCAL TAX OFFICE Bill
Payment
Receipt
Delinquency
C
TAX CREDITS Homestead
Homeowners
Renters
Status
D
LAND RECORDS Deed
Mortgage
Lien
Recorded document
M
MAP / PLAT Parcel map
Plat
Location
Survey reference
Who controls the answer in Maryland?
Your question
Start here
What it provides
Important limit
What is my assessed value?
SDAT Real Property / local assessment office
Market value, phase-in assessment and property characteristics.
SDAT does not calculate your county tax payment balance.
How much property tax do I owe?
County or municipal tax billing office
Current bill, installment, payment and delinquency information.
Do not use SDAT value alone as a payoff amount.
Is my assessment wrong?
Local SDAT assessment office
Property worksheet, explanation and first-level assessment appeal.
Appeal deadlines are notice-specific.
Who is shown as owner?
SDAT record
Owner name based on the latest recorded deed available to SDAT.
The public search cannot be searched by owner name.
What deed proves the transfer?
Maryland Land Records / Circuit Court Clerk
Recorded deed, mortgage and land-record documents.
SDAT’s owner field is not a title report.
Where is the legal boundary?
Recorded plat/deed + survey
Legal description and survey evidence.
SDAT property maps are not property surveys.
Portal software quirks

Five SDAT search rules generic property directories often miss

No owner-name search SDAT explicitly says the public property database cannot be searched by owner’s name.
No ZIP, town or neighborhood search Use county + address, PAN or another supported property identifier.
Deleted accounts are PAN-only A deleted property account can only be searched by its Property Account Identifier.
Early-morning maintenance SDAT warns the Real Property Search may be unavailable before 7:00 a.m.
JavaScript is required The public search requires JavaScript to function correctly.
No automated scraping SDAT’s terms prohibit robotic or automated data extraction from the property-search system.
Security lesson from 2026: SDAT issued an April 2026 advisory after its Real Property Search experienced technical problems and specifically told users to rely on the trusted Maryland.gov system. Avoid unofficial portals that imitate SDAT search pages.
No-result troubleshooting

Why a Maryland property may not show up

Wrong county selected The physical property location—not the owner’s mailing city—controls the jurisdiction.
Direction included Remove North, South, East, West and directional abbreviations.
Street suffix included Remove Road, Street, Lane, Avenue, Court and similar suffixes.
Street spelling differs Use a truncated street name followed by an asterisk.
House number differs The government’s assigned property number can differ from the number commonly used by the owner. Try the street without a number.
Deleted account Search using the Property Account Identifier rather than address.
Recent transfer The deed may have recorded before every assessment-display field is updated.
New parcel or subdivision A newly created account may use a different account structure or require local assessment-office assistance.
Local assessment-office script “I am trying to identify the Maryland real-property account at [address]. The SDAT search is not returning the parcel. I have [assessment notice/PAN/deed reference/former address]. Can you confirm the Property Account Number and whether the account was transferred, deleted, subdivided or renumbered?”
Property-record decoder

Full cash value and taxable phase-in value can be different

Maryland does not use a fractional assessment ratio

SDAT appraises real property at full cash or fair market value. A new market value can then be phased into the taxable assessment over the three-year reassessment cycle when the property’s value increases.

This means the record can show a higher current full cash value while the assessment used during the phase-in period is lower. Homestead protection may further limit taxable assessment growth on an eligible principal residence.

Important fields in the SDAT property record
Field
What it means
Practical use
Property Account Number
SDAT’s real-property account identifier.
Best identifier for exact assessment research.
Owner Name
Owner name based on the latest recorded deed reflected in SDAT.
Useful for verification; not searchable from the main public search.
Base Value
Full cash value determined before the latest reassessment.
Starting point for understanding the new reassessment.
Current Value
New full cash / market value from the most recent reassessment.
Main value to evaluate when deciding whether an assessment is accurate.
Phase-in Assessment
Portion of an increase that becomes taxable during the three-year phase-in.
Helps explain why taxable assessment can differ from current market value.
Own Occ
Owner-occupancy status.
Important for Homestead and Homeowners Tax Credit eligibility.
Transfer Information
Recorded sale/transfer clues such as seller, date, price and deed reference.
Useful starting point for sales and deed research.
Homestead Application Status
Shows whether a Homestead eligibility application is approved, received or missing.
Check before filing a duplicate application.

Owner-occupancy codes

H

Principal residence; the entire eligible account may qualify for applicable Homestead/Homeowners credit treatment if other requirements are met.

D

Principal residence with only part of the account potentially eligible, such as certain mixed-use properties.

N

Not treated as the owner’s principal residence for these credit purposes.

Phase-in example: if an old value is $300,000 and the new full cash value is $390,000, the $90,000 increase is generally spread across three years for phase-in purposes: $330,000, then $360,000, then $390,000 before considering any applicable Homestead limitation.
2026 Group 2 reassessment

Maryland reassessed about 789,000 Group 2 properties for 2026

Maryland divides its more than two million real-property accounts into three reassessment groups. One group is reassessed each year, so an individual property normally receives a full reassessment once every three years.

789,178 properties

Residential and commercial Group 2 properties included in the January 1, 2026 reassessment.

92.7% residential

Approximate share of Group 2 residential properties that experienced an increase.

+13.2% residential

Statewide average residential increase reported for Group 2.

+12.7% overall

Overall Group 2 reassessment value increase reported statewide.

Do not apply the statewide percentage to your house. Group averages are market context only. Your assessment should be evaluated using the subject property’s facts and comparable market evidence in its own area.

How Maryland values real property

Sales approach Recent comparable sales are analyzed to estimate what similar property would sell for in the market.
Cost approach Land value plus estimated replacement cost of improvements, less applicable depreciation.
Income approach Income-producing property may be analyzed using its earning capacity and applicable market data.
Open Maryland reassessment reports Read Homeowner’s Guide
Current 2026 tax calendar

The next major statewide dates are September 30, October 1 and December 31

Principal residence first installment September 30, 2026

Eligible owner-occupied properties using semiannual payment.

Homeowners Tax Credit October 1, 2026

2026 application deadline.

Principal residence second installment December 31, 2026

Second semiannual installment plus applicable service charge.

Tax-year structure: Maryland’s local real-property tax year runs from July 1 through June 30. Principal residences generally qualify for the semiannual payment program, with one installment due September 30 and the second due December 31. Owners can also elect the applicable annual-payment arrangement.
Always verify the actual bill locally. Maryland counties and municipalities set local rates, issue bills and handle payment. Municipal taxes, special charges, service charges, new-construction bills and account-specific adjustments can change what is actually due.
Assessment appeal path

You normally have 45 days from the assessment notice—not a universal annual date

01
NOTICE Read the new market value and notice date.
02
FILE Submit reassessment appeal within 45 days.
03
SUPERVISOR First-level SDAT review/hearing.
04
PTAAB Appeal final notice within 30 days when applicable.
05
TAX COURT Further appeal may follow within the applicable period.
When Maryland owners can challenge an assessment
Situation
Timing
How it works
New reassessment notice
Within 45 days of notice date
File online using the notice control number or return the appeal form to the local assessment office.
Year without regular reassessment
Petition for Review by the first working day following January 1
Useful when later events support a lower value or an earlier notice deadline was missed.
Property purchased January 1–June 30
Within 60 days of transfer
New owner may use the purchase appeal route after the deed is recorded.
After Supervisor final notice
Generally within 30 days
Appeal may move to the county Property Tax Assessment Appeal Board.

Evidence worth preparing

Recent comparable sales
Actual purchase price and settlement documents
Property-condition photographs
Repair estimates or inspection reports
Correct square footage and structure data
Evidence of incorrect land characteristics
Assessment worksheets for similar properties
Sales analysis for the assessment area
Maryland property-owner right: owners appealing an assessment may obtain the sales analysis for the area at no charge and can review the assessment worksheet with the assessor during the appeal process.
Assessment appeal call script “I am reviewing Maryland Property Account Number [PAN]. My notice is dated [date], and the new full cash value is [amount]. I believe the market value may be incorrect because [comparable sales, condition, property-data error or recent purchase]. Can you confirm my filing deadline and how to obtain the assessment worksheet and sales analysis?”
Read official appeal process Read Property Owner’s Bill of Rights
Maryland property-tax relief

Homestead Credit and Homeowners Credit solve different problems

Homestead Property Tax Credit

Limits annual taxable-assessment growth on an eligible principal residence. It is a one-time eligibility application while you own and occupy the property, and counties/municipalities must use an assessment-increase cap of 10% or less.

VS
Homeowners’ Property Tax Credit

Income-based program that limits qualifying property-tax burden relative to household income. It requires a new application for the applicable year.

2026 Homeowners’ Property Tax Credit rules

October 1, 2026

Final 2026 filing deadline.

$60,000

Maximum combined gross household income listed on the 2026 application.

$200,000

Maximum qualifying net worth under the 2026 form, excluding specified items such as the subject home and qualifying retirement savings.

$300,000 cap

The 2026 application limits the assessed value used in the state credit calculation under its published formula.

April 15 was an early-processing date, not the final 2026 deadline. Filing by April 15 could allow an eligible credit to appear on the initial July tax bill. The final 2026 Homeowners’ Tax Credit deadline is October 1, 2026.

Check Homestead status before filing again

Open SDAT Real Property Search Select the county and find the property.
Scroll to Homestead Application Information Look for the current status.
If status says Approved No new one-time application is normally needed while ownership/eligibility remains unchanged.
If status says Application Received Avoid filing a duplicate unless SDAT directs you to do so.
If status says No Application Use Maryland OneStop or the current SDAT Homestead filing route.
Check Homestead rules Open Homeowners Tax Credit Open Maryland OneStop
Deed, plat and map routing

Use SDAT to find the clue—then move to the recorded document

SDAT RECORD Find property + deed clue DEED REFERENCE Book / page or instrument LAND RECORDS Search recorded deed PLAT / SURVEY Verify legal geometry
Use the right Maryland record
Need
Use
What to save
Important warning
Current assessment owner display
SDAT
Owner name, PAN and deed reference
Assessment record is not a title examination.
Recorded deed
MDLandRec / local Circuit Court Land Records
Recording reference and image
Create a free MDLandRec account when required.
Recorded plat
Plats.net / local Land Records
Plat book/page or plat reference
Not every property has a recorded subdivision plat.
Online parcel map
SDAT/Maryland Planning map
PAN and mapped location
The official map states that it is not a property survey and should not be used for legal descriptions.
Boundary warning: SDAT’s own map disclaimer says the map is compiled from deed descriptions and plats but is not a property survey. Do not use the online parcel line as the sole basis for a fence, structure, easement or legal boundary decision.
Open Maryland Land Records Search Maryland plats
Contact & office finder

Contact the local SDAT assessment office for property-specific questions

SDAT maintains a local assessment office for each Maryland county and Baltimore City. Most are open weekdays from 8:00 a.m. to 4:30 p.m.; Baltimore City publishes 8:00 a.m. to 5:00 p.m., while some offices such as Prince George’s publish slightly different opening hours.

High-demand Maryland assessment-office contacts
Jurisdiction
Phone
Office
Published hours
Anne Arundel County
410-974-5709
45 Calvert St., 3rd Floor, Annapolis, MD 21401
8:00 a.m.–4:30 p.m.
Baltimore City
410-767-8250
6 Saint Paul St., 11th Floor, Baltimore, MD 21202
8:00 a.m.–5:00 p.m.
Baltimore County
410-512-4900
300 E. Joppa Rd., Suite 602, Towson, MD 21286
8:00 a.m.–4:30 p.m.
Calvert County
443-550-6840
200 Duke St., Room 1200, Prince Frederick, MD 20678
8:00 a.m.–4:30 p.m.
Harford County
410-836-4800
2 S. Bond St., Suite 400, Bel Air, MD 21014
8:00 a.m.–4:30 p.m.
Howard County
410-480-7940
3451 Court House Dr., Ellicott City, MD 21043
8:00 a.m.–4:30 p.m.
Montgomery County
240-314-4510
30 W. Gude Dr., Suite 400, Rockville, MD 20850
8:00 a.m.–4:30 p.m.
Prince George’s County
301-952-2500
14735 Main St., Suite 356B, Upper Marlboro, MD 20772
8:30 a.m.–4:30 p.m.
All other Maryland jurisdictions: use SDAT’s current Assessment Offices directory rather than guessing a county phone number or calling the state headquarters for a parcel-specific appraisal question.
Find all Maryland assessment offices

Statewide SDAT contacts

SDAT Headquarters

410-767-1184

Outside Baltimore Metro: 888-246-5941

Real Property HQ

410-767-1199

Homestead Credit

410-767-2165

866-650-8783

Homeowners Credit

410-767-5900

800-944-7403

Assessment-office call script “I am calling about Property Account Number [PAN] at [address] in [county]. I need help with [property search / assessment value / property characteristic / appeal / Homestead status]. The SDAT record currently shows [specific fact]. Can you tell me the correct next step?”
SDAT headquarters

Maryland Department of Assessments and Taxation contact

Headquarters
Maryland Department of Assessments and Taxation
700 East Pratt Street
2nd Floor, Suite 2700
Baltimore, MD 21202
General contact

Phone: 410-767-1184

Outside Baltimore Metro: 888-246-5941

Maryland Relay: 800-735-2258

Email: sdat.411@maryland.gov

Internal property-office guide

Maryland does not use the typical county-auditor property model

In Maryland, real-property valuation is administered through the State Department of Assessments and Taxation rather than an elected county auditor. Local county governments generally handle tax billing and collection, while Circuit Court clerks handle recorded land documents.

Need another state or county office?

Use the CountyAuditors.org national office directory to identify whether the correct office is an assessor, treasurer, collector, recorder, clerk or another state-specific equivalent.

Open County Auditor & Equivalent Office Directory
Record limitations

Know when SDAT is enough—and when it is not

SDAT is useful for
  • Finding a real-property account
  • Reviewing full cash value
  • Reviewing phase-in assessments
  • Checking property characteristics
  • Reviewing transfer and sales clues
  • Checking Homestead application status
  • Finding deed and plat references
Use another official source for
  • Current property-tax balance
  • Tax-payment receipt
  • Tax-sale payoff
  • Recorded deed images
  • Complete lien research
  • Exact surveyed boundaries
  • Legal title conclusions
SDAT’s own disclaimer matters: Real Property Data Search records are provided for informational purposes and should not be used as substitutes for legal reports or documents.
10 practical answers

Maryland tax assessment office FAQs

What is the official Maryland property assessment website?

Maryland’s official statewide assessment database is the SDAT Real Property Data Search at sdat.dat.maryland.gov. Select the county or Baltimore City first, then choose the appropriate search method.

Can I search Maryland property records by owner’s name?

No. SDAT states that its public Real Property Data Search cannot be searched by owner name, town, neighborhood, subdivision or ZIP code. Use the property address, Property Account Identifier or another supported property reference.

Why will my Maryland street address not work in SDAT?

Remove street directions such as North or SW and remove street suffixes such as Street, Avenue or Road. Try the street name without the house number if necessary, or use an asterisk after a partial street name to broaden the search.

What is a Maryland Property Account Number?

The Property Account Number, also called PAN or Property Account Identifier, is the SDAT identifier for the real-property account. The exact structure varies by jurisdiction; Anne Arundel County and Baltimore City use special account formats.

How often does Maryland reassess real property?

Maryland uses a three-year reassessment cycle. The state’s real-property accounts are divided into three groups, with one group reassessed each year.

Is Maryland property assessed at 100% of market value?

Yes. SDAT determines full cash or fair market value rather than applying a fractional assessment ratio. When value increases after reassessment, the increase is generally phased into the taxable assessment over the next three years.

When are Maryland real-property taxes due?

For qualifying principal residences using Maryland’s semiannual payment system, the first installment is due September 30 and the second installment is due December 31. Contact the local county or municipal tax office for the actual bill, annual-payment options and any local charges.

How long do I have to appeal a Maryland assessment?

A reassessment appeal generally must be filed within 45 days of the date on the Notice of Assessment. Other routes include a Petition for Review and a purchase appeal for qualifying transfers between January 1 and June 30.

What is the 2026 Maryland Homeowners Property Tax Credit deadline?

The final 2026 Homeowners’ Property Tax Credit application deadline is October 1, 2026. Filing by April 15 was recommended for eligible credits to appear earlier on the initial tax bill, but April 15 was not the final deadline.

Where do I find a Maryland deed or recorded plat?

Use Maryland Land Records or the local Circuit Court Clerk for recorded deeds and land records. Recorded plats can be researched through Plats.net and local land-record resources. SDAT property maps are research aids and are not legal boundary surveys.

Information reviewed August 22, 2026: Maryland SDAT Real Property Data Search instructions, address and Property Account Number rules, owner-name search limitation, deleted-account search rule, portal maintenance notice, current SDAT headquarters and Real Property contacts, local assessment-office directory, three-year reassessment process, 2026 Group 2 reassessment statistics, phase-in rules, assessment-appeal procedures, Property Owner’s Bill of Rights, 2026 Homeowners’ Property Tax Credit requirements, Homestead application guidance, semiannual tax-payment dates and Maryland land-record/map guidance were checked against current official Maryland sources.
Independent Guide — Legal & Accuracy Disclaimer: CountyAuditors.org is an independent informational directory. It is not the Maryland State Department of Assessments and Taxation, Maryland OneStop, a county assessment office, county tax collector, municipality, Circuit Court Clerk, Maryland State Archives or any other government office. CountyAuditors.org does not determine assessments, issue tax bills, accept tax-credit applications, collect property taxes, record deeds or establish legal property boundaries. Verify assessment values, appeal deadlines, tax balances, credit eligibility, recorded documents and legal descriptions directly with the responsible official agency before making a legal, financial, tax or real-estate 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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