How to Appeal Your Property Tax in Massachusetts
Massachusetts homeowners can appeal their property tax assessment if they believe it's too high. This guide covers the 2026 appeal deadline, required evidence, and step-by-step process.
2026 Appeal Deadline: February 1
Don't miss your window. Missing the deadline means waiting another full year.
How Massachusetts Assesses Property
Massachusetts assesses residential property at 100% of market value.
Massachusetts assesses property at 100% of full and fair cash value.
The Appeal Process
Appeals are heard by the Appellate Tax Board. An informal review is available before filing a formal appeal.
Board of Assessors (Abatement Application)
Appellate Tax Board
Appeals Court
Massachusetts Appeal Deadline
What Overassessment Costs Massachusetts Homeowners
The median home in Massachusetts is worth $466,000. If your assessment is just 10% too high, you may be overpaying:
~$522/year
Effective tax rate: 1.12% · Median value: $466,000
Check Your Massachusetts Assessment
Enter your address to see your estimated overassessment and Massachusetts filing deadline.
Massachusetts Counties
Essex County
Median: $578,100 · Rate: 1.12%
Deadline: February 1, 2026 or three months after the actual (third quarter) tax bill is mailed, whichever is later
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Middlesex County
Median: $687,200 · Rate: 1.22%
Deadline: February 1, 2026, or 30 days from the mailing date of the third-quarter actual tax bill, whichever is later
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Norfolk County
Median: $592,100 · Rate: 1.15%
Deadline: February 1, 2026, or 30 days from the mailing date of the third-quarter actual tax bill, whichever is later
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Plymouth County
Median: $360,700 · Rate: 1.02%
Deadline: February 1, 2026, or 30 days from the mailing of the third quarter actual tax bill, whichever is later
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Suffolk County
Median: $641,300 · Rate: 1.07%
Deadline: February 2, 2026 (for Fiscal Year 2026 appeals based on third-quarter bills issued in late December 2025/January 2026)
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Worcester County
Median: $390,700 · Rate: 1.33%
Deadline: February 1, 2026 (or within 30 days of the mailing of the third quarter actual tax bill, whichever is later)
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Massachusetts Guides & Resources
📋 How to Appeal Property Taxes in Massachusetts: Complete 2026 Guide
Complete guide with deadlines, forms, and step-by-step instructions
📋 How Much Can Property Taxes Increase in Massachusetts? 2026 Complete Guide
Massachusetts caps, limits, and protections
📅 Massachusetts Property Tax Appeal Deadline 2026: February 1st Abatement Window
Massachusetts filing deadlines and process
🏦 Massachusetts Mails Four Tax Bills a Year. Your Appeal Deadline Rides on Just One of Them.
Massachusetts's abatement deadline is tied to a bill that arrives 11 months after your valuation date, and your mortgage servicer's escrow clock runs on a completely different calendar.
🔑 The $2 Million Line: Why the Estate Tax, Not the Property Tax, Is the Surprise in a Massachusetts Inheritance
Massachusetts is one of the few states with its own estate tax, and a Greater Boston house can push an ordinary estate past the $2 million line by itself. The property tax mostly rides through, except in residential exemption cities and when a Clause 41A deferral lien comes due.
👤 Massachusetts Clause 41C and the 351-Town Local-Option Maze: Why Your Town's Vote Determines Your Senior Tax Relief
State floor + town adoption + Schedule CB Circuit Breaker, three independent layers
Massachusetts Has No Homestead Exemption. Seniors, Veterans, and the Disabled Get Real Relief Instead.
Massachusetts has no general homestead exemption. Its local Boards of Assessors offer real, narrower relief to seniors, veterans, and the disabled.
Property Tax Appeal Resources
Best Appeal Services Compared
7 companies compared, pricing, coverage, and pros/cons for 2026.
2026 Appeal Deadlines
Every state's deadline, filing method, and what happens if you miss it.
Assessment Ratios by State
Every state's assessment percentage, from 4% to 100%, with worked examples.
9 Ways to Lower Your Property Taxes
From homestead exemptions to formal appeals, every method that works.
Savings Calculator
Check if you're overassessed, enter your assessed value to see potential savings.
Flat Fee vs Contingency: Which Saves More?
$49 flat vs 25-50% of savings, see the break-even math at every savings level.
Frequently Asked Questions
How do I appeal my property tax in Massachusetts?
What is the Massachusetts property tax appeal deadline?
What is Massachusetts's property tax assessment ratio?
How much can I save by appealing in Massachusetts?
What evidence do I need for a Massachusetts property tax appeal?
What is the effective property tax rate in Massachusetts?
Can I file a Massachusetts property tax appeal online?
Ready to Appeal Your Massachusetts Property Tax?
Enter your address for a free overassessment analysis. If the numbers support a appeal, your complete evidence packet is $49.