A Moped Bill of Sale is a legal document that records the transfer of ownership of a moped or motorized scooter from the seller to the buyer. Mopeds are classified differently from motorcycles under state motor vehicle codes, and the regulatory requirements for their sale, titling, registration, and operation vary significantly by state. The federal government does not define "moped" for purposes of highway safety standards, leaving the classification entirely to state law.

Most states define a moped as a two-wheeled or three-wheeled vehicle with an engine displacement of 50cc or less (or an electric motor equivalent) and a maximum speed capability of 25 to 35 mph on level ground. Some states, such as California (Vehicle Code Section 406), require mopeds to have fully operative pedals for human propulsion. The distinction between mopeds and motorcycles is legally significant because mopeds are generally subject to less stringent licensing requirements (often a standard driver's license rather than a motorcycle endorsement), lower registration fees, and relaxed insurance mandates.

State titling requirements for mopeds vary. Some states (such as Florida, Texas, and Ohio) require mopeds to be titled, while others (such as California and New York) do not issue titles for mopeds but require registration. Still others exempt mopeds from both titling and registration requirements. The bill of sale serves as the primary ownership document in states that do not title mopeds, making it essential for proving legal ownership, reporting the purchase price for sales tax purposes, and resolving ownership disputes.

A private individual is selling a used moped to another person and needs documentation for the title or registration transfer process at the DMV or equivalent state agency. A buyer is purchasing a moped and needs proof of the purchase price for sales tax calculation and registration.

A college student is selling a moped at the end of the academic year and wants a written record establishing that they are no longer the owner, protecting them from future liability for parking tickets, traffic violations, or accidents involving the moped. A person is buying a moped as economical transportation and wants documentation proving their legal ownership in case of theft or dispute.

A moped dealer or rental company is selling used fleet vehicles and needs bills of sale for each unit sold. A person is gifting a moped to a family member and needs to document the transfer for title or registration purposes, noting the transaction as a gift for sales tax exemption (if applicable in the state).

An estate administrator is selling a moped from a deceased person's estate and needs documentation for probate accounting. A buyer is purchasing an electric moped or e-scooter and needs documentation, as electric models may be subject to different regulatory classifications than gas-powered mopeds in some states.

The seller's and buyer's full legal names, addresses, and driver's license numbers must be stated. Contact information (phone numbers and email addresses) facilitates post-sale communication if registration issues arise.

The moped description must include the make (Honda, Vespa, Genuine, Kymco, etc.), model, year of manufacture, engine displacement (cc) or motor wattage for electric models, color, Vehicle Identification Number (VIN) or serial number, and current odometer reading. The VIN should be verified against the title certificate (if titled) and the physical VIN on the frame. For electric mopeds, the battery type, capacity, and estimated remaining life should be documented.

The moped's regulatory classification should be noted. If the moped has been modified (engine swap, performance exhaust, speed derestriction) in ways that may reclassify it as a motorcycle under state law, this should be disclosed. The buyer should be made aware that modifications may trigger additional licensing, registration, insurance, or inspection requirements.

The purchase price and payment method must be stated. The condition of the moped should be described, including any mechanical issues, body damage, tire condition, and brake functionality. Most private moped sales are conducted as-is, and the appropriate UCC warranty disclaimers should be included.

The seller should represent that they are the legal owner and that the moped is free of liens. The seller should provide the signed-over title (in title states), current registration, and any applicable inspection or emissions certificates. Both parties must sign and date the document.

A copy should be retained by each party. The buyer should be informed of the applicable state requirements for registration, insurance, and operator licensing, as these vary by state and by the moped's specifications.