Tax Season Action Guide: How to Save $3,000-$5,000 on Your Boston Metro Property Taxes

April is property tax month in Greater Boston. Residential exemption deadline: April 1, 2026 (Boston $4,104 savings, Cambridge $3,288, Somerville $3,500-$4,500). Q4 tax payment due: May 1, 2026 (14% penalty if late). FY2026 tax rates range from $6.67 (Cambridge) to $18.64 (Acton) = $359,100 difference over 30 years on $1M home. Senior exemptions ($500-$2,000) and veteran exemptions ($400-$2,000) also due April 1. New proposed senior exemption (S.2902) could add $2,400 annual relief if enacted. File now—don't leave $3,000-$5,000 on the table.

Greater Boston homeowners facing April tax deadlines, owner-occupants eligible for residential exemptions, seniors 65+ needing tax relief, veterans with service-connected disability, anyone with Q4 tax bill due May 1, prospective buyers evaluating total ownership costs.

• •Residential exemption deadline: April 1, 2026 (saves $2,900-$4,100 annually in Boston, Cambridge, Somerville, Brookline)
• •Q4 tax payment due May 1, 2026—14% annual interest penalty if late, no grace period
• •FY2026 rates: Cambridge $6.67 (lowest) vs Acton $18.64 (highest) = $359,100 difference over 30 years
• •Senior exemptions: Clause 41C ($500-$2,000) + Clause 41A deferral (4% interest) due April 1
• •Veteran exemptions: $400-$2,000 depending on disability rating—file by April 1
• •New S.2902 bill proposes $2,400 additional senior exemption if enacted
• •Abatement deadline passed (Feb 1)—prepare for FY2027 appeals by monitoring assessment