Middlesex County Property Tax Calculator
Massachusetts abolished most county government decades ago, so Middlesex County itself doesn't run a property tax office — each city and town within it maintains its own Board of Assessors, which values property annually and applies that town's own tax rate. Because there's no countywide rate, Middlesex County bills vary widely from one community to the next. Load Middlesex County into the calculator above and add a home value to see the outcome.
Annual Property Tax
$7,322Monthly (Escrow)
$610Effective Rate
1.01%Middlesex County's effective rate is about the same as the Massachusetts average (1.00%).
Edit inputs ↑Middlesex County Effective Rate
1.01%
Vs. Massachusetts Average
0% higher
Massachusetts National Rank
#16 of 51
1 = highest statewide rate
County Median Home Value
$727,800
Estimated Annual Tax (Median Home)
$7,322
Monthly Equivalent
$610
Property tax in Middlesex County, Massachusetts
- Middlesex County has no county-level government function since it was largely abolished, so property is assessed and taxed entirely at the city or town level.
- Each community's Board of Assessors sets fair cash value annually and applies its own tax rate, which is why bills vary so much across Middlesex County.
- Owners can apply for an abatement with their local assessors if they believe a valuation is too high, followed by appeal to the state Appellate Tax Board if needed.
- Programs exist locally for seniors, veterans, and other qualifying residents, but eligibility and the size of the break are set town by town.
Other large Massachusetts counties
Effective rate = aggregate real-estate taxes paid ÷ aggregate home value (ACS 2024 5-year).
| County | Effective Rate | Median Home Value |
|---|---|---|
| Hampden County | 1.41% | $298,800 |
| Hampshire County | 1.36% | $390,300 |
| Franklin County | 1.32% | $329,000 |
| Worcester County | 1.25% | $423,700 |
| Berkshire County | 1.13% | $305,400 |
See property tax across every county in Massachusetts at the Massachusetts property tax calculator , or check your Massachusetts income tax with the Massachusetts income tax calculator .
Frequently asked questions
How is property tax calculated in Middlesex County?
There's no countywide math to do — each city or town within Middlesex County has its own Board of Assessors that fixes fair cash value and its own tax rate, so the numbers depend entirely on which specific community your property sits in.
How do I appeal my Middlesex County property assessment?
An abatement application goes to your local Board of Assessors after tax bills go out, and the state Appellate Tax Board hears a further appeal if that's denied. Middlesex County has no countywide appeal step since valuation is entirely local.
Does Middlesex County offer a homestead exemption?
Exemption programs for seniors, veterans, and other qualifying residents exist, but they're administered town by town rather than countywide, so eligibility and the reduction amount depend on where in Middlesex County the property sits.
Why do property tax bills vary so much across Middlesex County?
Because each city and town sets its own fair cash values and its own tax rate independently, with no county-level government coordinating or standardizing either one — a pattern shared across all of Massachusetts since county government was largely eliminated.
Sources
Related insights
Use these guides for rule explanations, planning context, and follow-up questions beyond the calculator result.