Eligible veterans are entitled to a property tax exemption if their municipality has voted to accept the exemptions. The City may grant additional tax relief.Call the Assessor's Office at 978-929-6621 or the Veteran Services Officer at 978-929-6614 to inquire about the following tax exemptions for disabled veterans. Minimum service exception (for death or disability). A new application is required each year. Applications for Veteran exemptions must be filed with the Board of Assessors on or before three months after the actual tax bill is mailed. Qualifications vary, but generally relate to age, ownership, residency, disability, income or assets. Is a veteran who just moved to Massachusetts eligible for a veteran's exemption? About local property tax exemptions for veterans.