Southborough, Middlesex County, Massachusetts Property Taxes
Median Southborough, MA effective property tax rate: 1.02%, matching the national median of 1.02%, but lower than the Massachusetts state median of 1.23%.
Median Southborough, MA home value: $918,200
Median annual Southborough, MA tax bill: $9,402, $7,002 higher than the national median property tax bill of $2,400.
How are property taxes in Middlesex calculated?
Property taxes in Southborough, MA 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 Southborough’s property tax system, exemptions, and reduction opportunities can lead to significant savings. Regardless of where you live in Southborough, knowing local tax details benefits homeowners and investors.
Last Updated March 1, 2025
Southborough, Middlesex County, Massachusetts Property Tax Bill Calculator
$100,000
$1,500,000
$3,000,000
Median Effective Tax Rate
1.02%
Estimate Property Tax Bill
$9,366
$8,691
Property Tax Rates Across Southborough, Middlesex County, Massachusetts
Local government entities set tax rates, which can vary widely within a state. 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 votes and laws are involved in setting tax rates and budgets, this is the annual process in a nutshell.
Southborough in Middlesex County, Massachusetts, is no exception to this process. The effective property tax rate in Southborough can be compared to other cities in Massachusetts and the median property tax rates in Massachusetts and the U.S. Massachusetts has a median tax rate that aligns closely with the national median, providing a benchmark for understanding how Southborough’s rate fits into the broader landscape.
Understanding these comparisons can help property owners in Southborough make informed decisions about appealing their property tax assessments. By examining these rates, property owners can assess whether they are paying a fair share relative to others in the state and across the country.
Property Tax Rates Across Southborough, Middlesex County, Massachusetts
Source: Ownwell

0.59%
1.24%
1.90%
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 Southborough Tax Rate
1.02%
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 Middlesex County Tax Rate
1.22%
Median Effective Massachusetts Tax Rate
1.23%
Median Effective United States Tax Rate
1.02%
Property Tax Rates Across Southborough, Middlesex County, Massachusetts
Zip | 10th Percentile | 25th Percentile | Median Tax Rate | 75th Percentile | 90th Percentile |
---|---|---|---|---|---|
01772 | N/A | N/A | N/A | N/A | N/A |
Source: Ownwell
Property Tax Assessment Values Across Southborough, Middlesex County, Massachusetts
When examining property taxes in Southborough, MA, 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 Middlesex 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.
In Middlesex County, assessment notices are sent in the spring each year. They’ll typically reach your mailbox by the middle of May. 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 Southborough.
For example, the median home price in Southborough is $918,200, with tax bills ranging significantly across the county.
Property Tax Assessment Values Across Southborough, Middlesex County, Massachusetts
Source: Ownwell

$320,300
$928,425
$1,536,550
Median Southborough Market Value
$918,200
Median Middlesex County Market Value
$633,600
Median Massachusetts Market Value
$492,600
Median United States Market Value
$235,294
Property Tax Assessment Values Across Southborough, Middlesex County, Massachusetts
Zip | 10th Percentile | 25th Percentile | Median Home Price | 75th Percentile | 90th Percentile |
---|---|---|---|---|---|
01772 | N/A | N/A | N/A | N/A | N/A |
Source: Ownwell
Property Tax Bills Across Southborough, Middlesex County, Massachusetts
In Southborough, Middlesex County, MA, property tax bills are calculated based on the assessed value of a home. The assessment reflects the market value, and the tax rate is applied to this assessed value to determine the tax bill. With a median home price of $918,200, homeowners in Southborough face substantial tax bills. Notably, the tax bill remains consistent across various percentiles, with the 25th, 75th, and 90th percentiles all at $9,402. This figure significantly exceeds the national median property tax bill of $2,400. Such high tax bills can put a financial strain on homeowners, making it crucial to explore potential savings.
Ownwell provides valuable services to help homeowners reduce their property tax bills. By conducting thorough analyses and filing appeals, Ownwell can challenge assessments that may be higher than the actual market value, potentially lowering the tax burden. This assistance can lead to significant savings, ensuring that homeowners are not overpaying on their property taxes and can allocate their resources more efficiently.
Property Tax Bills Across Southborough, Middlesex County, Massachusetts
Source: Ownwell

$4,294
$11,232
$18,170
Median Southborough Tax Bill
$9,402
Median Middlesex County Tax Bill
$7,427
Median Massachusetts Tax Bill
$5,844
Median United States Tax Bill
$2,400
Property Tax Bills Across Southborough, Middlesex County, Massachusetts
Zip | 10th Percentile | 25th Percentile | Median Tax Bill | 75th Percentile | 90th Percentile |
---|---|---|---|---|---|
01772 | N/A | N/A | N/A | N/A | N/A |
Source: Ownwell