Dennis, Barnstable County, Massachusetts Property Taxes

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Property Taxes in Dennis, Massachusetts

Median Dennis, Massachusetts effective property tax rate: 0.43%, significantly lower than the national median of 1.02%, and lower than the Massachusetts state median of 1.15%.
Median Dennis, Massachusetts home value: $876,600
Median annual Dennis, Massachusetts tax bill: $3,796, $1,396 higher than the national median property tax bill of $2,400.

How are property taxes in Barnstable calculated?

Property taxes in Dennis, Massachusetts are calculated based on the tax assessed value, which is often lower than the actual market value due to property tax exemptions such as the homestead or senior exemption.

Understanding Dennis's property tax system, exemptions, and reduction opportunities can lead to significant savings. Regardless of where you live in Dennis, knowing local tax details benefits homeowners and investors.

Last Updated April 13, 2026

Dennis, Barnstable County, Massachusetts Property Tax Bill Calculator

Property Assessed Value

$100,000

$1,500,000

$3,000,000

Median Effective Tax Rate

0.43%

Estimate Property Tax Bill

$3,769

$3,498

How Does the Dennis Property Tax Calculator Work?

Use this Dennis property tax calculator to estimate your annual property tax bill. Enter your property's assessed value and our calculator applies Dennis's median effective tax rate of 0.43% — based on actual property records in Barnstable County — to generate your estimate.

Enter your property's estimated assessed value — the figure the local assessor uses to calculate your bill, which reflects any exemptions you hold and is typically lower than your home's market value. Our calculator applies Dennis's median effective rate across all local levies, providing a more accurate estimate than applying a single county millage rate.

Your bill may vary by ZIP code within Dennis: rates range from 0.43% in 02638 to 0.43% in 02638, primarily due to differences in school district levies and local assessment districts.

For a more precise estimate, scroll down to explore ZIP code-level tax rate trends across Dennis.

About Dennis Property Taxes

About Property Taxes in Dennis, Barnstable, Massachusetts

Dennis’s median effective property tax rate of 0.43% is lower than the Massachusetts state median of 1.15% and lower than the national median of 1.02%. This rate reflects the Barnstable County base levy combined with local school district levies and special assessment districts that vary by subdivision throughout the town.

Property tax rates are not uniform across Dennis. Homeowners in ZIP code 02638 carry a median effective rate of 0.43%, and the same ZIP code also has the town’s median tax bill of $3,796. Understanding where you live in Dennis can make a meaningful difference to your annual tax bill.

Dennis homeowners who believe their assessed value is too high can file a formal appeal with the Tax Assessor before the February 1, 2026 deadline each year. Notices are sent in December.

If your estimated bill above seems higher than expected, Ownwell can review your assessment and protest on your behalf. You only pay if we save you money.

Property Tax Rates Across Dennis, Barnstable County, Massachusetts

As noted earlier, local government entities set tax rates, which can vary widely within a state.

Why? Because annually, each county estimates its required budget to provide services and divides that by the total value of all taxable property within its jurisdiction. This calculation results in the property tax rate.

While there are votes and laws involved in setting tax rates and budgets, in a nutshell, this is the annual process.

Below, you can compare Dennis's effective property tax rate to other cities in Massachusetts and the median property tax rates in Massachusetts and the U.S.

Property Tax Rates Across Dennis, Barnstable County, Massachusetts

Source: Ownwell

0.35%

0.70%

1.06%

Our median effective property tax rate (tax bill ÷ assessor's market value) accounts for exemptions and deductions, making it more accurate than the general median tax rate, which is the midpoint of statutory rates before adjustments.

Median Effective Dennis Tax Rate

0.43%

Median Effective Barnstable County Tax Rate

0.69%

Median Effective Massachusetts Tax Rate

1.15%

Median Effective United States Tax Rate

1.02%

Property Tax Rates Across Dennis, Barnstable County, Massachusetts

Zip	10th Percentile	25th Percentile	Median Tax Rate	75th Percentile	90th Percentile
02638	0.43%	0.43%	0.43%	0.43%	0.43%

Source: Ownwell

Property Tax Assessment Values Across Dennis, Barnstable County, Massachusetts

When examining property taxes in Dennis, Massachusetts, understanding the distinction between "market value" and "assessed value" is crucial.

The market value is what a willing buyer would pay to a willing seller in an open and competitive market, often influenced by location, property condition, and economic market trends. The Barnstable County appraisal district estimates the market value for tax purposes.

The assessed value is the market value minus any applicable exemptions or limits determined by local laws and offerings. The tax assessed value is the figure used to calculate your property taxes or the amount multiplied by your tax rate to get your tax bill.

Assessment notices:

In Barnstable County, assessment notices are sent in December each year. They'll typically reach your mailbox by the middle of December.

Each property owner receives an assessment notice that contains both the market value and assessed value, along with an estimate of your property tax bill. By providing insights into how assessed and market values are determined, this section helps property owners navigate their tax responsibilities and understand the valuation processes affecting their property taxes in Dennis.

For example, the median home price in Dennis is $876,600, with tax bills ranging significantly across the county. 02638 has the highest median home price at $876,600.

Property Tax Assessment Values Across Dennis, Barnstable County, Massachusetts

Source: Ownwell

$434,000

$988,550

$1,543,100

Median Dennis Market Value

$876,600

Median Barnstable County Market Value

$651,000

Median Massachusetts Market Value

$561,600

Median United States Market Value

$235,294

Property Tax Assessment Values Across Dennis, Barnstable County, Massachusetts

Zip	10th Percentile	25th Percentile	Median Home Price	75th Percentile	90th Percentile
02638	$463,820	$596,800	$876,600	$1,382,000	$2,054,180

Source: Ownwell

Property Tax Bills Across Dennis, Barnstable County, Massachusetts

Dennis property tax bills are based on the assessed value of a home, which is determined by local assessors and reflects the market value of the property. The tax rate set by the local government is then applied to that assessed value to calculate the annual bill. Factors such as the home’s location, size, condition, and any exemptions can influence the final amount.

For homeowners in Dennis, the median home price is $876,600, and the median property tax bill is $3,796.00. That is above the national median property tax bill of $2,400 and reflects the higher home values in the area. Bills can vary widely, with the 25th percentile at $2,584 and the 90th percentile reaching $8,895.

Because property taxes are tied to assessed value, any increase in that value can raise a homeowner’s tax bill.

Property Tax Bills Across Dennis, Barnstable County, Massachusetts

Source: Ownwell

$2,203

$8,254

$14,304

Median Dennis Tax Bill

$3,796

Median Barnstable County Tax Bill

$4,531

Median Massachusetts Tax Bill

$6,068

Median United States Tax Bill

$2,400

Property Tax Bills Across Dennis, Barnstable County, Massachusetts

Zip	10th Percentile	25th Percentile	Median Tax Bill	75th Percentile	90th Percentile
02638	$2,008	$2,584	$3,796	$5,984	$8,895

Source: Ownwell

Don't miss the deadline to appeal!

Dates
Appeal Deadline	February 1

Links
Barnstable Tax Assessor
Website	barnstable.gov

Frequently Asked Property Tax Questions in Dennis, Massachusetts

How are property taxes calculated in Dennis, Massachusetts?

Property taxes in Dennis, Massachusetts are calculated by multiplying your property's assessed value by the applicable tax rate set by local taxing authorities. The assessed value is determined by the county assessor and may differ from your property's market value depending on local assessment ratios and exemptions.

How do I appeal my property taxes in Dennis, Massachusetts?

To appeal your property taxes in Dennis, Massachusetts, you typically need to file a formal protest or appeal with your local appraisal district or assessor's office by the stated deadline. You'll need evidence such as comparable sales, a recent independent appraisal, or documentation of property condition issues. Ownwell can handle this entire process for you.

What property tax exemptions are available in Dennis, Massachusetts?

Common property tax exemptions in Dennis, Massachusetts include homestead exemptions for primary residences, senior citizen exemptions, veteran exemptions, and disability exemptions. Exemption amounts and eligibility requirements vary by county. Contact your local appraisal district or check Ownwell for details specific to your property.

When are property taxes due in Dennis, Massachusetts?

Property tax deadlines in Dennis, Massachusetts vary by county but typically include an assessment notice period in spring or early summer, followed by an appeal deadline, and a tax payment due date in the fall or winter. Check with your county assessor's office for specific dates in your area.

How can Ownwell help reduce my property taxes in Dennis, Massachusetts?

Ownwell provides professional property tax appeal services in Dennis, Massachusetts. Our team analyzes your assessment, gathers evidence, files all paperwork, and represents you at hearings — all with no upfront cost. You only pay a percentage of your savings if we successfully lower your tax bill.