TaxDrop
Start My Protest

St. Mary's County, Maryland Property Taxes (2026)

St. Mary's County homeowners pay a median property tax of $3,392/year on a median home value of $390,900 — an effective rate of 0.87%, which is below the national median of 1.02%. St. Mary's County has a population of approximately 114,372.

Appeal Your St. Mary's County Property Taxes with TaxDropCheck Your Tax Rate — Free Calculator

Effective Tax Rate

0.87%

Lower than the Maryland median of 1.00%

Median Home Value

$390,900

Annual Tax Bill

$3,392

~$283/month

Est. Annual Savings

$509

If reduced by 15%

Free Tax Check

St. Mary's County, Maryland Property Tax Calculator

Enter your address to instantly see if you're overpaying on property taxes. Our tool compares your assessed value against recent comparable sales in St. Mary's County to estimate your potential savings.

  • Takes less than 2 minutes
  • Uses real St. Mary's County comparable sales data
  • 100% free — no credit card required
Check Your Property Tax Rate →

Average Annual Savings

$509

Estimated savings for St. Mary's County homeowners

Property Tax Rates: St. Mary's County vs. Maryland vs. National

St. Mary's County0.87%
Maryland Median1.00%
National Median1.02%

Key stat: The effective property tax rate in St. Mary's County, Maryland is 0.87%, compared to the Maryland median of 1.00% and the national median of 1.02%. (Source: U.S. Census Bureau, ACS 5-Year Estimates)

How St. Mary's County Compares Across Maryland

See where St. Mary's County's tax metrics fall relative to all 24 Maryland counties.

Tax Rate Distribution

Percentile distribution across all Maryland counties

10th

1.00%

25th

1.00%

Median

1.00%

75th

1.00%

90th

1.00%

Home Value Distribution

Percentile distribution across all Maryland counties

10th

$217,690

25th

$267,375

Median

$357,700

75th

$414,225

90th

$447,750

Tax Bill Distribution

Percentile distribution across all Maryland counties

10th

$1,890

25th

$2,496

Median

$3,314

75th

$3,842

90th

$4,602

St. Mary's County Department of Assessments and Taxation Information

St. Mary's County Department of Assessments and Taxation

Assessing Authority

St. Mary's Department of Assessments and Taxation

Appeal Deadline

45 days after notice

Maryland appeal filing deadline

State

Maryland

How to appeal

Let TaxDrop handle it for you →

How to Appeal Your Property Taxes in St. Mary's County

If you own property in St. Mary's County, you have the legal right to appeal your assessed value. Here is the step-by-step process:

1

Review your assessment notice

Check the assessed value from the St. Mary's Department of Assessments and Taxation. Compare it to recent sales of similar homes in your area.

2

File your appeal before the deadline

The Maryland deadline is 45 days after notice. Missing this deadline means waiting until the next assessment year.

3

Gather supporting evidence

Compile recent comparable sales, photos of property condition issues, independent appraisals, or any factors that reduce your home's value.

4

Present your case

Attend a hearing or submit your evidence to the Department of Assessments and Taxation. Present clear data showing your assessed value is too high.

5

Receive your decision

If successful, your assessed value and tax bill will be reduced. With a median bill of $3,392, even a 10-15% reduction means $339-$509 in annual savings.

Skip the hassle — let TaxDrop handle it

TaxDrop's licensed consultants analyze your property, build your case with comparable sales data, and represent you through the entire appeal process. You pay nothing unless we save you $500 or more.

Start Your St. Mary's County Appeal →Free Tax Rate Calculator

Property Tax Exemptions in Maryland

Maryland homeowners may qualify for exemptions that reduce their taxable value. Common exemptions include:

Homestead Exemption

Available to primary residence owners. Reduces the assessed value used to calculate your tax bill.

Senior/Over-65 Exemption

Additional exemption for homeowners age 65+. May include a tax ceiling that freezes your bill.

Disability Exemption

For homeowners with qualifying disabilities. Similar benefits to the over-65 exemption.

Veteran Exemption

Disabled veterans may receive partial or full exemptions depending on disability rating.

Frequently Asked Questions

What is the property tax rate in St. Mary's County, Maryland?
The median effective property tax rate in St. Mary's County, Maryland is 0.87%. On a home valued at $390,900, the median annual property tax bill is $3,392. Source: U.S. Census Bureau, ACS 2026.
How much are property taxes in St. Mary's County?
The median annual property tax bill in St. Mary's County is $3,392, which works out to approximately $283/month. This is based on the median home value of $390,900 and an effective tax rate of 0.87%.
How do I appeal my property taxes in St. Mary's County?
To appeal your property taxes in St. Mary's County, Maryland, you need to file with the St. Mary's Department of Assessments and Taxation before the deadline of 45 days after notice. You'll need evidence that your assessed value exceeds your property's market value, such as recent comparable sales. TaxDrop can handle this entire process for you — you pay nothing unless we save you $500 or more.
Is St. Mary's County a high property tax area?
St. Mary's County's effective tax rate of 0.87% is below the national median of 1.02%. It's below the Maryland median of 1.00%.
What is the deadline to appeal property taxes in Maryland?
The deadline to appeal property taxes in Maryland is 45 days after notice. It's important to file before this deadline — missing it means waiting until the next assessment cycle. TaxDrop monitors deadlines and files on your behalf to ensure you never miss the window.
Can TaxDrop help lower my St. Mary's County property taxes?
Yes. TaxDrop helps homeowners in St. Mary's County, Maryland appeal their property tax assessments. We analyze your property, compare it against local comparable sales, and handle the entire appeal process. Our fee is 25% of your savings — and if we don't save you at least $500, you pay nothing.

Nearby Counties

Montgomery County

Rate: 0.87%

Tax bill: $5,341

Prince George's County

Rate: 1.15%

Tax bill: $4,662

Queen Anne's County

Rate: 0.79%

Tax bill: $3,503

Somerset County

Rate: 0.98%

Tax bill: $1,603

Talbot County

Rate: 0.66%

Tax bill: $2,623

Washington County

Rate: 0.89%

Tax bill: $2,444

Wicomico County

Rate: 0.89%

Tax bill: $2,120

Worcester County

Rate: 0.76%

Tax bill: $2,629

← View all 24 Maryland counties

Stop overpaying on property taxes

30-60% of properties are over-assessed, but only 5% of homeowners challenge their bill. TaxDrop makes it easy to fight back. No upfront cost. No fee if we save you less than $500.

Check Your Savings