Montana Vehicle Bill of Sale

As a buyer in Montana, you must register the vehicle within 40 days for buyer (60 days if new resident). Because Montana requires a notarized bill of sale, obtain one from a licensed notary public before visiting the DMV.

Bring the notarized bill of sale, the signed certificate of title with accurate odometer disclosure, proof of insurance, valid identification, and payment for taxes and registration fees.

The bill of sale alone does not transfer legal ownership. Title transfer with the Montana motor vehicle agency is required to register the vehicle in your name.

Before completing a private sale in Montana, ensure your notarized bill of sale includes all required fields: buyer and seller names, VIN, year, make, model, odometer reading, sale date, purchase price, and notarized signatures.

Seller should notify MVD after sale. Remove your license plates from the vehicle before handing over keys unless Montana law allows otherwise.

Keep a copy of all signed documents for your records. The bill of sale protects you if questions arise later about when ownership transferred.

When you register the vehicle, Montana typically assesses tax based on the purchase price listed on your bill of sale. If the stated price appears significantly below fair market value, the licensing office may use a standard book value instead.

Private party sales are subject to the same tax rules as other acquisitions in most cases. The bill of sale purchase price is the primary documentation used at registration, which is why an accurate, complete document matters.

When obtaining a notarized bill of sale in Montana, ensure the purchase price is clearly stated — licensing officials use it for tax calculation.

The certificate of title — not the bill of sale alone — is the primary document that transfers ownership. The seller signs the title assignment; the buyer submits it to the Montana motor vehicle agency along with the bill of sale and other required documents.

Buyers must complete registration within 40 days for buyer (60 days if new resident). Required documents typically include the assigned title, bill of sale (notarized), proof of insurance, and valid ID.

Montana may require additional official forms. Notarized bill of sale may be required. A generic bill of sale supplements but may not replace those forms.

Seller provides: signed certificate of title with odometer disclosure, bill of sale (notarized), and any lien release if applicable.

Buyer brings to registration: assigned title, bill of sale, proof of Montana insurance, valid identification, and payment for registration fees and applicable taxes.

Both parties should retain signed copies of the bill of sale. Documents from billandsale.com include a footer noting the generation date and that the form is not an official DMV document.