When does interest accrue on unpaid bills?

If you are unable to pay your tax bill, Massachusetts General Law mandates that interest at 14% be added to the amount due from the due date to the date of payment.  A tax bill is considered “paid” upon receipt by the Treasurer/Collector not the post mark on the envelope.

The Fiscal Years taxes must be paid in full by the May 1st due date to avoid any further action to collect.  Other collection fees can apply.