New Hampshire Used Car Laws: Disclosures, As-Is Sales, and Fees

New Hampshire used car laws give buyers a real financial break — no sales tax on the purchase — but put most of the responsibility for catching problems on the buyer before signing. Dealers owe specific written disclosures, private sellers owe honesty about title and mileage, and once you sign the paperwork, the deal is final. There is no three-day right to change your mind.

What Dealers Must Disclose Before You Buy

Safety Inspection on Request

Under RSA 358-F:2, if you tell a New Hampshire dealer you believe a used vehicle may be unsafe, the dealer must conduct or arrange a safety inspection. If that inspection turns up defects, the dealer can still sell the car, but only after handing you a written notice listing every defect found, who performed the inspection, and when. The notice must state explicitly that the vehicle is unsafe for highway operation until the defects are corrected.¹

A dealer who skips the inspection or hides defects that should have surfaced commits an unfair or deceptive practice under the state Consumer Protection Act (RSA 358-A), and the buyer can pursue any remedy that act allows.²

The FTC Buyers Guide

Federal law adds a second layer. Any dealer selling more than five used vehicles in a twelve-month period must post a Buyers Guide on every used vehicle before a customer can inspect it. The guide states whether the car comes with a warranty or is sold as-is, and if a warranty applies, it lists the duration, the covered systems, and the share of repair costs the dealer will pay.³ Skipping the Buyers Guide violates the FTC’s Used Car Rule and can trigger both federal and state enforcement.

Odometer Disclosure

Sellers must give the buyer a written odometer disclosure at the time of sale. Vehicles with a 2010 or older model year fall under the older ten-year exemption for pre-2011 models. Vehicles from model year 2011 or newer require disclosure until they reach twenty years old.⁴ Tampering with an odometer or lying about the mileage is a federal offense with heavy penalties.

As-Is Sales and the Warranties That Survive

Most used cars sold in New Hampshire, especially in private sales, are sold as-is. The buyer takes on every risk: if the transmission fails the next morning, that is your problem. For an as-is sale at a dealership to be legally binding, the dealer must state it clearly in writing on the Buyers Guide.⁵ A verbal as-is from the salesperson is not enough.

If a dealer fails to properly disclaim warranties in writing, the sale may carry an implied warranty of merchantability under the Uniform Commercial Code, meaning the vehicle should be in reasonable working condition for ordinary driving. If a dealer sells a car that can barely make it off the lot and never disclaimed implied warranties in writing, you may have grounds for a claim.⁶

There is also a useful rule tied to service contracts. If a dealer makes a service contract on the vehicle (as opposed to selling one as an agent for a third party), the dealer cannot disclaim implied warranties on that vehicle.⁷ Read any service contract closely, because they routinely exclude pre-existing conditions, restrict where you can get repairs, and carry deductibles that can exceed the cost of minor repairs.

No Cooling-Off Period in New Hampshire

One of the most common misconceptions in car buying is that you have three days to change your mind. You do not, not in New Hampshire. Once you sign the sale documents, you own the vehicle, and second thoughts do not undo the transaction.⁸

The federal FTC Cooling-Off Rule, which does give buyers three days to cancel certain purchases, specifically excludes vehicles bought at a dealer’s normal place of business. It applies only to sales made away from the seller’s regular location, such as door-to-door sales. Neither dealership purchases nor most private sales come with any cancellation right. Catch problems before you sign.

Title Transfer and Registration

New Hampshire requires a title for any vehicle with a model year of 2000 or newer. For older vehicles, a bill of sale and a copy of a prior registration can serve as proof of ownership, though confirming with the DMV before completing the purchase is wise.⁹

Registration is a two-step process. Start at your local town or city clerk’s office, where residency is verified. Many clerks also act as municipal agents and can handle the state portion at the same time for a small additional fee. Bring the signed title (or the bill of sale for a title-exempt vehicle), proof of residency, and payment for registration fees.¹⁰

If you bought through a private sale or from an out-of-state dealer, you can get a twenty-day temporary plate to drive the car legally while finishing the paperwork. Out-of-state buyers purchasing from a New Hampshire resident can obtain a twenty-day in-transit registration certificate.¹¹

Title documents must reach the DMV within twenty days. Miss that window and the DMV collects a penalty equal to the fee that would have been charged for the transaction.¹² Vehicles coming from out of state also need a VIN verification, which can be completed by law enforcement or an authorized agent, before you can register them.¹⁰

What You Will Pay

New Hampshire has no general sales tax, and that includes vehicle purchases. You will not owe any sales tax on a new or used car bought in the state.

You will still pay registration fees, which are based on the vehicle’s weight and type. The town or city clerk collects a local fee, and the state charges its own registration fee on top of that. If the clerk handles both parts as a municipal agent, expect a small convenience fee for the combined transaction.¹⁰

Dealer documentation fees deserve a close look. New Hampshire caps the documentary fee, which is the charge for processing titles and state paperwork, but dealers can also charge a separate administrative fee that is not capped. Ask the dealer to itemize both charges before you agree to a price, and push back if the administrative fee looks inflated. These are negotiable regardless of what the finance office tells you.

Why the Lemon Law Rarely Helps Used Buyers

New Hampshire’s lemon law (RSA 357-D) targets new vehicles and the manufacturers who make them. It lets a consumer seek a replacement or refund from the manufacturer when a new car has a defect that substantially impairs its use, safety, or value and cannot be fixed after a reasonable number of attempts.¹³

The defect is presumed unrepairable if the manufacturer or its authorized dealer has attempted the same fix at least three times without success, or if the vehicle has been out of service for a cumulative total of thirty or more business days during the warranty period.¹⁴ If the manufacturer still fails, the consumer can pursue a replacement or a refund, with a possible deduction for mileage.¹⁵

The catch for used buyers is a hard one. The statute explicitly says that neither new nor used motor vehicle dealers can be sued under Chapter 357-D.¹³ A used car buyer’s only path under the lemon law is if the vehicle is still covered by the original manufacturer’s warranty, which applies to few used cars. Most used car buyers will need to rely on warranty terms, the Consumer Protection Act, or common-law fraud claims instead.

Dealer vs. Private Seller: Different Rules

Buying from a dealer and buying from a private individual are legally different transactions, and the gap in protections is significant.

Licensed dealers must inspect a used vehicle when the customer asks and issue a written defect notice if it fails,¹ display the FTC Buyers Guide on every used vehicle,³ comply with federal odometer disclosure requirements for non-exempt vehicles,⁴ and avoid any unfair or deceptive practice under the Consumer Protection Act.²

Private sellers operate with fewer statutory obligations. They do not need to offer warranties or display a Buyers Guide. Fewer obligations does not mean none. A private seller who rolls back the odometer, conceals a salvage or flood-damage title brand, or lies about the car’s mechanical condition faces civil fraud claims and potential criminal prosecution. Title and odometer disclosure requirements apply to everyone.

Practically, private sales carry more risk for the buyer. Do the pre-purchase work yourself. Run the VIN through the National Motor Vehicle Title Information System (NMVTIS) to check for title brands like salvage, rebuilt, or flood damage. Have an independent mechanic inspect the car. Get anything the seller tells you about condition in writing, because verbal promises are far harder to enforce.

Penalties and How to File a Complaint

Dealers who violate the state’s disclosure requirements or engage in deceptive practices face enforcement under RSA 358-A. The Attorney General’s Consumer Protection and Antitrust Bureau investigates complaints and can bring action against dealers; violators face fines, restitution orders, and injunctive relief, and repeat or serious violators risk losing their dealer license.¹⁶

Federal odometer fraud carries some of the steepest penalties in used car law. Civil fines run up to $10,000 per vehicle involved, with a maximum of $1,000,000 for a related series of violations. Knowing and willful violations can result in up to three years in prison.¹⁷

Buyers who are victims of odometer fraud have a private right of action. You can sue the person responsible and recover three times your actual damages or $10,000, whichever is greater, plus attorney’s fees and court costs. The lawsuit must be filed within two years of discovering the fraud.¹⁸

To file a complaint about a dealer or private seller, send your paperwork to the New Hampshire Attorney General’s Consumer Protection and Antitrust Bureau. Include the purchase agreement, the Buyers Guide, any written representations the seller made, and records of the defects you have discovered.¹⁹ For odometer fraud specifically, you can also report the issue to the New Hampshire DMV and pursue a federal lawsuit under 49 USC 32710; the treble-damages provision and mandatory attorney’s fee award often make these claims worth filing even when the actual loss looks modest.¹⁸

1
New Hampshire General Court. New Hampshire Code 358-F – Section 358-F:2 Inspection
2
New Hampshire General Court. New Hampshire Code 358-F – Section 358-F:4 Remedy
3
Federal Trade Commission. Dealer’s Guide to the Used Car Rule
4
eCFR. 49 CFR Part 580 – Odometer Disclosure Requirements
5
Federal Trade Commission. Used Car Rule
6
Cornell Law School Legal Information Institute (LII). Uniform Commercial Code 2-314 – Implied Warranty: Merchantability; Usage of Trade
7
Federal Trade Commission. Businessperson’s Guide to Federal Warranty Law
8
New Hampshire Department of Justice. Purchasing a Used Motor Vehicle in New Hampshire
9
New Hampshire General Court. New Hampshire Code 261 – Section 261:3 Exempted Vehicles
10
New Hampshire Division of Motor Vehicles. New Registrations
11
New Hampshire Division of Motor Vehicles. Temporary Plates
12
New Hampshire General Court. New Hampshire Code 261 – Section 261:20 Fees
13
New Hampshire General Court. New Hampshire Code 357-D – Section 357-D:1 Intent
14
New Hampshire Division of Motor Vehicles. Arbitration Law
15
New Hampshire General Court. New Hampshire Code 357-D – Section 357-D:4 Remedy
16
New Hampshire Department of Justice. Consumer Protection and Antitrust Bureau
17
Office of the Law Revision Counsel. 49 USC 32709 – Penalties and Enforcement
18
Office of the Law Revision Counsel. 49 USC 32710 – Civil Actions by Private Persons
19
New Hampshire Department of Justice. Consumer Complaints