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S 2899

An Act to prevent property tax bill shocks

194th Legislature (2025-2026) Introduced by Will Brownsberger and 2 co-sponsors

Massachusetts bill S 2899 limits rapid property tax bill increases to prevent homeowner financial shocks from soaring assessments during housing market appreciation.

Reprinted, as amended, see S2917
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Bill Summary · S 2899

Legislative bill overview

S 2899 aims to curb sudden, large increases in property tax bills in Massachusetts by implementing protections against "tax bill shock." The bill establishes mechanisms to limit how quickly assessed property values can increase and/or how rapidly property owners' tax obligations can rise year-over-year. It was amended during Senate debate and is advancing toward final passage.

Why is this important

Property tax bill shocks—sudden spikes in annual tax bills—can force homeowners, particularly those on fixed incomes or in appreciating neighborhoods, to sell their homes or face financial hardship. Massachusetts has experienced volatile real estate markets in recent years, creating cases where assessments jumped significantly. This bill addresses a real constituent concern that impacts housing stability and affordability.

Potential points of contention

  • Assessment methodology disputes: Disagreement over whether limiting assessment increases addresses root causes (housing supply, market dynamics) or merely masks underlying valuation problems
  • Revenue implications for municipalities: Towns depend on property tax revenue for schools and services; caps on increases could strain municipal budgets if not offset
  • Equity concerns: Protections for current homeowners could create disparities with new purchasers paying full market-rate assessments, and may not help renters facing indirect cost pass-throughs

Compiled from official sources — confirm details with the bill’s official record.

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