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Massachusetts Dog Bill of Sale

Massachusetts requires a bill of sale in common situations, such as when the title does not show the purchase price. Fill in the form below and download a free, one-page Massachusetts dog bill of sale PDF that includes everything the Massachusetts Registry of Motor Vehicles looks for. Nothing you type leaves your browser.

Massachusetts
Dog Bill of Sale

Seller

Buyer

Dog details

Price and terms

How to sell a dog in Massachusetts

A dog bill of sale records the sale of a puppy or adult dog with the breed, sex, date of birth, color, microchip and registration, plus the price and any health guarantee. Breeders use it for every puppy; private sellers use it so the new owner has proof of ownership for vets, registries and licensing.

Seller steps

  1. Confirm you hold clear title. If a lender is on the title, get the lien release before you list it.
  2. Agree on the price and fill in the Massachusetts dog bill of sale above with the buyer. Record the serial number.
  3. Both parties sign and each keeps a copy. Massachusetts does not require a notary.
  4. Hand over any registration papers, manuals, receipts or health records that go with the dog.
  5. Hand over the dog and keep your signed copy of the bill of sale for your records.

Buyer steps

  1. Check the description against the dog itself before you sign.
  2. Keep the signed bill of sale with your records; it is your proof of ownership and purchase price.
  3. Transfer any registration papers and update the microchip or brand records in your name.

Before you sign

  • Record the microchip number and update the chip registry after the sale.
  • List vaccinations given and the next due dates.
  • If there is a health guarantee or a spay/neuter requirement, write it in the terms.
  • Breeders: keep a signed copy with the litter records.

Why a bill of sale matters for a dog

  • Proof of ownership for licensing, vet records and microchip registration.
  • Registries like the AKC require the breeder's signature to transfer.
  • Records the health guarantee, or the lack of one, in writing.
  • Settles a dispute if the dog is lost or claimed by someone else.

Want both parties to walk away with a signed copy and a notary page ready? The $9 ready-to-sign pack adds them.

Massachusetts at a glance

Bill of sale
Required in common cases
Notary
Notarization optional
Official state form
None published; any signed bill of sale is accepted
Where the buyer registers
Massachusetts Registry of Motor Vehicles (www.mass.gov/orgs/massachusetts-registry-of-motor-vehicles)
License plates
Stay with seller

Massachusetts requires the previous registration plus a bill of sale for vehicles old enough to be exempt from titling; for titled vehicles the assigned title with mileage and both signatures is the transfer document. The RMV's Registration and Title Application (RTA) asks for the price for sales tax. Plates stay with the seller.

Checked October 2026 against the state's own guidance. Rules change; confirm before you file.

Massachusetts dog bill of sale questions

Is a bill of sale required to sell a dog in Massachusetts?+

Massachusetts requires a bill of sale in common situations, such as when the title does not show the purchase price. Massachusetts requires the previous registration plus a bill of sale for vehicles old enough to be exempt from titling; for titled vehicles the assigned title with mileage and both signatures is the transfer document. The RMV's Registration and Title Application (RTA) asks for the price for sales tax. Plates stay with the seller. Massachusetts has no mandatory form, so any complete, signed bill of sale like the one generated here is accepted.

Does a Massachusetts dog bill of sale need to be notarized?+

Massachusetts does not require notarization. Two signatures are enough. If you want extra certainty, the ready-to-sign pack includes a notary acknowledgment page you can use anyway.

Does the buyer need to file a dog bill of sale in Massachusetts?+

No. Dogs and puppies are not titled or registered with the state, so there is nothing to file. The signed bill of sale is the ownership record; each party keeps a copy.

Is a dog bill of sale legally binding?+

Yes. Dogs are personal property in every state, and a signed bill of sale is a contract that proves the sale and its terms.

Should a puppy bill of sale include a health guarantee?+

Most breeders include one, often 48 to 72 hours for a vet check and one to two years for genetic conditions. Write the terms in the extra terms field; without them the sale is as-is.