Colorado Dog Bill of Sale

How to sell a dog in Colorado

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 Colorado dog bill of sale above with the buyer. Record the serial number.
3. Both parties sign and each keeps a copy. Colorado 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.