Property tax abatements in the Commonwealth — from Boston and Cambridge through Worcester, Springfield, the South Shore, and the Merrimack Valley.
MA assesses property at full and fair cash value (100% market value) under Mass. Gen. Laws Ch. 59 §38. The procedural escalation runs municipal Board of Assessors → Appellate Tax Board (ATB) → Massachusetts Appeals Court. Abatement filings go to the Board of Assessors by the first quarterly tax bill due date (typically February 1) on State Tax Form 128. The hidden lever in approximately 17 RE-adopting municipalities (including Boston, Cambridge, Somerville, Brookline): the Residential Exemption under Mass. Gen. Laws Ch. 59 §5C — a local-option owner-occupant reduction worth up to 35% of average residential parcel value, currently saving Boston homeowners up to $4,353.74 in FY 2026. Proposition 2½ caps the aggregate municipal levy at 2.5% annual growth (and at 2.5% of total assessed value as the levy ceiling) but does NOT cap individual bills.
For the full procedural framework, three ATB tracks (formal / informal / small claims), evidence rules, and 10 city/town quick-reference accordions covering Boston, Cambridge, Worcester, Springfield, Lowell, Brockton, Newton, Quincy, Brookline, and Somerville, see:
→ Massachusetts Property Tax Abatements — The Complete Guide
The complete guide covers all 12 sections of our state-cornerstone schema: quick facts, how assessments work, when abatements make sense, the abatement and ATB process step-by-step, evidence rules, what wins and loses at the appeal venue, exemptions (including the §5C Residential Exemption), city/town quick references, recent legislative context, FAQ, service-company landscape, and primary sources.
The Property Tax Desk publishes editorial guidance grounded in primary state and county sources. Our coverage of Massachusetts:
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The Property Tax Desk Editorial Team