Montgomery County MD Tax Records Lookup: Free Property Tax Search (2026)

Quick Answer

To look up Montgomery County, MD property tax records:

1. Go to the Montgomery County Finance real property tax portal.
2. Search by property address or account number.
3. The result shows the current year tax bill, payment history, account balance, and any delinquent amount.

For the assessment that drives the bill — the property's assessed value, ownership, and characteristics — use the Maryland State Department of Assessments and Taxation (SDAT) real property search.

Both portals are free, public, and no account is required.

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The Two Records You Need

Montgomery County tax records live in two separate systems, and the difference matters:

| Source | What It Shows | |---|---| | MC Finance Office | The actual tax bill, payment status, delinquent balance | | SDAT (Maryland State) | The assessed value, ownership, and property characteristics used to calculate the bill |

You almost always need both. SDAT explains why the bill is what it is; the Finance portal shows whether it's paid.

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Step 1: Pull the Tax Bill from MC Finance

The Montgomery County Finance real property tax portal displays:

• Current year tax amount owed
• Whether the bill is paid, partially paid, or delinquent
• Payment history going back multiple years
• Outstanding interest and penalties on overdue balances
• Tax sale status (if applicable)

How to search:

Open the MC Finance real property tax portal. You can search by full street address (most common) or by the SDAT account number if you have it. No account registration is required.

The summary screen shows the current bill broken into installments. Montgomery County allows semi-annual payment for owner-occupied homes — see when Montgomery County real estate taxes are due for the calendar.

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Step 2: Pull the Assessment from SDAT

The Maryland State Department of Assessments and Taxation maintains the statewide property database. For Montgomery County, SDAT shows:

• Current owner name and mailing address
• Assessed value (Maryland assesses on a triennial cycle)
• Assessment history — prior cycles, often back two or three reassessments
• Property characteristics: square footage, year built, lot size, number of stories
• Exemptions and credits applied (Homestead, Homeowners' Tax Credit, etc.)

How to search SDAT:

Open SDAT's real property search at dat.maryland.gov. Search by address, account number, or owner name. The "Assessment" tab shows the full cash value, assessed value, and prior assessment history — the data points needed if you're considering an appeal. See the Montgomery County property assessment guide for the appeal process.

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What Tax Records Actually Tell You

For a home you're considering buying:

Check that the current owner has no delinquent property taxes. Unpaid Montgomery County property taxes become a lien on the property and transfer with the deed — meaning the buyer can inherit them at closing if the title company misses the issue.

If a property appears on Montgomery County's annual tax sale list (properties with two or more years of delinquent taxes), that's a major red flag requiring resolution before settlement.

For a home you own:

Check that your bill matches what you expect from your assessed value × tax rate. If the bill includes a special assessment district or municipality surcharge (Rockville, Gaithersburg, Takoma Park have additional municipal taxes), it will show as a separate line item. The full math is covered in the Montgomery County property tax rate guide.

For an investment analysis:

Annual property tax is a major component of carrying cost. Pull the actual bill rather than estimating from the rate — the Finance portal shows what the current owner is paying, including any active exemptions you would not inherit as a non-owner-occupant.

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Tax Sale and Delinquency Records

Montgomery County publishes its annual tax sale list publicly. Properties with two or more consecutive years of delinquent taxes are auctioned to investors who pay the back taxes in exchange for a lien with redemption rights.

The list is available on the Montgomery County Finance website each spring before the tax sale (typically held in June). If you're researching a property and find it on the list, the delinquent balance, accrued interest, and redemption deadline are all part of the public record.

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How Montgomery County Property Tax Records Compare to Federal Tax Records

Property tax records (county) and federal income tax records (IRS) are separate systems. The county does not share property tax data with the IRS automatically, but property taxes paid are deductible on Schedule A up to the federal SALT cap. The MC Finance portal's payment history page is the source documentation you need at tax time. See home buying tax deductions in Maryland for the broader picture.

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Frequently Asked Questions

How do I look up Montgomery County, MD tax records?

Use the Montgomery County Finance real property tax portal. Search by address or account number to see the current bill, payment status, and delinquent balance. For the underlying assessment, use SDAT.

Are Montgomery County property tax records public?

Yes. Tax bills, payment status, and assessment values are all public records, available for free without registration through the county Finance portal and SDAT.

How do I find out if a property has unpaid taxes in Montgomery County?

Search the property on the MC Finance real property tax portal. The result page lists any outstanding balance, accrued interest, and whether the property is on the tax sale list.

What is the Montgomery County tax assessor?

In Maryland, the assessment function is performed by the state, not the county. The Maryland State Department of Assessments and Taxation (SDAT) sets assessed values; the Montgomery County Finance Office issues bills and collects payments based on those assessments.

How often does Montgomery County reassess property values?

Maryland reassesses on a three-year (triennial) cycle. Montgomery County is divided into three groups, each reassessed in turn. Your SDAT record shows when your group is next due.

Can I pay Montgomery County property taxes online?

Yes. The MC Finance real property tax portal accepts payments by e-check (free) or credit card (with a third-party processor fee). Confirmation is recorded in your payment history the next business day.

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Related Resources

• Montgomery County MD Property Records: Free Search for Deeds, Taxes & Owners
• Montgomery County MD Property Tax Rate (2026)
• When Are Montgomery County Real Estate Taxes Due?
• Montgomery County Property Assessment: How It Works and How to Appeal

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Buying or selling and need a clean read on the tax records for a specific property? Reach out — I'll pull both the bill and the assessment before you commit.