Williamstown Property Tax Overview
Williamstown, Massachusetts has a FY2025 residential property tax rate of $13.80 per $1,000 of assessed value. That works out to about $1,380 in annual tax for every $100,000 of assessed home value.
On a median-priced Williamstown home (around $445K), the estimated annual property tax bill is $6.1K, or roughly $512 per month. Your actual bill depends on your home's assessed value, which can differ from its market price.
At $13.80 per $1,000, Williamstown's rate is 11% above the Massachusetts statewide average of about $12.40. Property tax rates are set annually by each city or town and fund local schools, public safety, and services.