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Connecticut Bill of Sale

Connecticut requires a bill of sale for private sales. Connecticut does not require notarization. Two signatures are enough. Pick what you are selling, fill in the form, and download a free PDF that the Connecticut Department of Motor Vehicles will accept alongside Form H-31.

Connecticut

Seller

Buyer

Vehicle details

Price and terms

Connecticut bill of sale forms by item

Each form below asks only for what that item needs, and carries Connecticut's notary note and agency details in the footer.

Selling privately in Connecticut: what to know

Connecticut requires a bill of sale (Form H-31, or your own with the same contents) along with proof of ownership to process a new registration; vehicles over 20 model years are not titled and use the Q-1 supplemental assignment with the last registration. No notary is required. Plates stay with the seller.

  • Bill of sale: required for private sales.
  • Notary: notarization optional.
  • Official form: Form H-31.
  • Agency: Connecticut Department of Motor Vehicles.
  • Odometer: federal disclosure applies to vehicles under 20 model years old, on the title or a separate statement.

Want the paperwork finished in one sitting? The $9 ready-to-sign pack adds seller and buyer copies, the odometer statement and a Connecticut notary page.

Connecticut at a glance

Bill of sale
Required for private sales
Notary
Notarization optional
Official state form
Form H-31
Where the buyer registers
Connecticut Department of Motor Vehicles (portal.ct.gov/dmv)
License plates
Stay with seller

Connecticut requires a bill of sale (Form H-31, or your own with the same contents) along with proof of ownership to process a new registration; vehicles over 20 model years are not titled and use the Q-1 supplemental assignment with the last registration. No notary is required. Plates stay with the seller.

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

Common questions

Does Connecticut require a bill of sale?+

Connecticut requires a bill of sale for private sales. Connecticut requires a bill of sale (Form H-31, or your own with the same contents) along with proof of ownership to process a new registration; vehicles over 20 model years are not titled and use the Q-1 supplemental assignment with the last registration. No notary is required. Plates stay with the seller.

Does a bill of sale have to be notarized in Connecticut?+

Connecticut does not require notarization. Two signatures are enough.

Is there an official Connecticut bill of sale form?+

Yes, Form H-31, published by the Connecticut Department of Motor Vehicles. The PDF generated here contains the same information in the same order and is accepted with it or in place of it in most offices.

What do I need to register a vehicle bought privately in Connecticut?+

The signed title, the bill of sale, proof of insurance where required, your ID, and payment for sales or use tax plus title and registration fees, filed with the Connecticut Department of Motor Vehicles within the state deadline.