Eligible veterans are entitled to a property tax exemption if their municipality has voted to accept the exemptions. If first year of application, attach Certificate of Disability from U.S. Dept.Of Veterans Affairs or branch of service. The City may grant additional tax relief. A Certificate of Disability from the Veterans Administration verifying the extent of disability as of July 1 of the tax year. If you qualify as a veteran under state law, you have a right to: File a written application for veterans benefits at any time. Applications for Veteran exemptions must be filed with the Board of Assessors on or before three months after the actual tax bill is mailed. A new application is required each year. About local property tax exemptions for veterans. Is a veteran who just moved to Massachusetts eligible for a veteran's exemption?