Massachusetts Dog License Requirements

Massachusetts is one of the states that requires dog licensing by state law, so the basic rule is the same everywhere in the state even though the paperwork is handled locally.

Massachusetts dog license at a glance

What Massachusetts law says

• M.G.L. c. 140, ss. 137 and 139 require licensing of dogs over 6 months.
• A veterinarian's rabies certificate or exemption is required.
• Fees are set locally, lower for spayed or neutered dogs; service animals are free (s. 139).

How to license a dog in Massachusetts

1. Have your dog vaccinated against rabies by a veterinarian and keep the rabies certificate.
2. If your dog is spayed or neutered, keep the veterinarian's proof; altered dogs usually pay a lower fee.
3. Apply through the office named above. Many towns and counties also accept online or mail applications.
4. Attach the tag to your dog's collar and renew before the deadline to avoid late fees.

Licenses, rabies shots and microchips

Dog licenses and rabies vaccination usually go together: the license office or the veterinarian checks the rabies certificate before a tag is issued. See Massachusetts rabies vaccination laws for the required age and booster rules. A license tag helps animal control return a lost dog quickly, and a microchip is a permanent backup if the collar comes off.

What happens if your dog is not licensed?

An unlicensed dog found at large can be picked up by animal control, and getting it back usually means paying impound fees and buying the license. Penalties are listed above where the state statute sets them; local ordinances often add their own fines. Leash and at-large rules are covered in Massachusetts leash laws.

Sources

1. Michigan State University Animal Legal & Historical Center: Massachusetts dog laws
2. Michigan State University Animal Legal & Historical Center: Table of state rabies vaccination laws