New owners will be automatically updated by the Assessor's Office upon receipt of a copy of the recorded deed from the Registry of Deeds. If the sale is very close to a tax due date, you may call the Treasurer's Office at 508-799-1075 or email us for a remittance slip to be sent to you. You may also update the mailing address on the bill by filing out the online form. The Collector of Taxes is required by Massachusetts General Law to issue the bill to the assessed owner as of January 1. Therefore, the old owner and the new owner will receive a tax bill until the following January 1.