The Magnuson-Moss Warranty Act is the 1975 federal law that governs written warranties on consumer products in the United States. It doesn’t require any company to offer a warranty, but the moment a company puts one in writing, the act dictates how it must be labeled, what it must say, what it can’t take away, and what happens if the company doesn’t stand behind it. For you as a buyer, the practical effect is a set of protections that apply automatically whenever you purchase a warranted product for personal, family, or household use.
What the Act Covers
The act applies to “consumer products,” defined by statute as tangible personal property normally used for personal, family, or household purposes.1Office of the Law Revision Counsel. 15 USC 2301 – Definitions Appliances, electronics, furniture, and vehicles all qualify, and so do items attached to real property like a water heater or garage door opener.
Coverage turns on the type of product, not on how you personally use it. A laptop is normally used for personal purposes, so its warranty falls under the act whether you buy it for home or for a small business. The FTC has been explicit on this point.2Federal Trade Commission. Businessperson’s Guide to Federal Warranty Law Industrial equipment that nobody would buy for household use falls outside the act.
Not every promise counts as a “written warranty.” To qualify, the document has to be a written affirmation that the product will meet a specified performance level over a stated time, a written promise that the product is defect-free, or a written commitment to take remedial action if it fails.3eCFR. 16 CFR 700.3 – Written Warranty Energy efficiency ratings, return policies, and “satisfaction guaranteed” offers are terms of sale, not warranties.
Two price thresholds trigger federal requirements. Written warranties on products costing more than $10 (excluding tax) must be labeled as “Full Warranty” or “Limited Warranty.”4eCFR. Interpretations of Magnuson-Moss Warranty Act For products costing more than $15, retailers have to make the warranty terms available before you buy.5eCFR. 16 CFR 702.3 – Pre-Sale Availability of Written Warranty Terms
One boundary worth knowing: private individuals selling their own belongings are not on the hook for implied warranties, which attach only to merchants who regularly deal in a product. For used goods, sellers can generally offer them “as is” if they don’t provide a written warranty or service contract, though a few states ban “as is” sales entirely.2Federal Trade Commission. Businessperson’s Guide to Federal Warranty Law
Full Warranty vs. Limited Warranty
Every written warranty on a consumer product costing more than $10 has to carry one of two labels: “Full Warranty” or “Limited Warranty.”6Office of the Law Revision Counsel. 15 USC 2303 – Designation of Written Warranties The label lets you gauge the strength of the promise before you buy.
A “Full Warranty” has to meet every federal minimum standard under 15 U.S.C. § 2304:7Office of the Law Revision Counsel. 15 USC 2304 – Federal Minimum Standards for Warranty
- Defects and malfunctions are fixed in a reasonable time at no charge for parts, labor, or return shipping.
- If the company can’t fix the product after a reasonable number of attempts, you choose between a full refund and a free replacement.
- The company cannot cap the duration of implied warranties.
- Any exclusion of consequential damages (spoiled food when a fridge dies, for example) must be conspicuously stated on the face of the warranty.
Any written warranty that misses even one of those standards must be labeled “Limited.” In practice, almost every consumer product carries a Limited Warranty because the Full Warranty rules are demanding. A Limited Warranty might cover parts but charge you for labor, expire quickly, or exclude particular components.
The label also affects transferability. A Full Warranty cannot restrict the rights of a subsequent owner during the warranty period.8eCFR. 16 CFR 700.6 – Designation of Warranties There’s a common workaround: a company can define the duration as “for as long as the original purchaser owns the product,” which ends coverage the moment the product changes hands. Limited Warranties have no federal transferability requirement and often exclude second owners outright.
Your Implied Warranty Protections
Implied warranties exist automatically under state law whenever a merchant sells a product. The two big ones are the warranty of merchantability (the product works for its ordinary purpose and is free of significant defects) and the warranty of fitness for a particular purpose (the seller knew what you needed and picked the product for you).
The federal act doesn’t create these implied warranties, but it fences them in. Under 15 U.S.C. § 2308, any company that offers a written warranty or sells a service contract on a consumer product is prohibited from disclaiming or eliminating implied warranties.9Office of the Law Revision Counsel. 15 USC 2308 – Implied Warranties The moment a written warranty is attached, no disclaimer buried in the paperwork can strip those protections away.
A company offering a Limited Warranty has one narrow option: it can limit the duration of implied warranties to match the length of the written warranty, provided the period is reasonable and the limitation is clearly and prominently written on the face of the document. A Full Warranty cannot impose any time limit on implied warranties. Any disclaimer that violates these rules is void under both federal and state law.
Service contracts trigger the same protection. If you buy a “protection plan” or “extended warranty” at the time of sale or within 90 days, the federal ban on disclaiming implied warranties applies to that seller.10Office of the Law Revision Counsel. 15 USC 2306 – Service Contracts So even when a product ships without a written warranty, purchasing the store’s plan locks in implied warranty rights.
What the Warranty Document Must Tell You
Federal law requires warrantors to put all the relevant terms into a single document in plain, easy-to-understand language.11Office of the Law Revision Counsel. 15 USC 2302 – Rules Governing Contents of Warranties At a minimum, the document has to identify the warrantor by name and address, state exactly what is and isn’t covered, give the duration and any events that start or end coverage, describe step-by-step how to get warranty service, and disclose any costs you’d be expected to pay, like shipping or insurance.
For products costing more than $15, retailers must make the warranty available before purchase.5eCFR. 16 CFR 702.3 – Pre-Sale Availability of Written Warranty Terms In a store, that means the warranty is posted near the product or kept in a binder for customers to inspect. Online, a link to the full text on the product page satisfies the rule.
The E-Warranty Act of 2015 lets manufacturers post terms on a website instead of packaging a printed copy with every product. To use that option, the manufacturer has to tell you on the product, its packaging, or its manual where to find the terms online, and provide a non-internet way to request them, such as a phone number or mailing address. In-store, catalog, and door-to-door sales still require warranty terms to be accessible before the sale closes.
Your Right to Use Third-Party Parts and Service
One of the most consumer-friendly parts of the act bars companies from conditioning warranty coverage on your use of specific branded parts or authorized service providers. Under 15 U.S.C. § 2302(c), a warrantor cannot require that you use any article or service identified by brand, trade, or corporate name unless the company provides that article or service to you free of charge.11Office of the Law Revision Counsel. 15 USC 2302 – Rules Governing Contents of Warranties
In practice, a car manufacturer cannot void your warranty because you used an aftermarket oil filter or an independent mechanic, and a printer maker cannot refuse a warranty claim because you used third-party ink. A company wanting to require its own branded product must petition the FTC for a waiver and show that nothing else will work. Waivers are rare.
If a warranty claim is denied because you used a third-party part, the burden falls on the company to prove that the specific part caused the failure. Without that proof, the warranty stands. This is why “warranty void if removed” stickers on electronics run into trouble. In 2024, the FTC sent warning letters to three computer hardware companies over stickers that discouraged routine maintenance and repairs, telling them to review their warranty materials or face enforcement action.12Federal Trade Commission. FTC Warns Companies to Stop Warranty Practices That Harm Consumers’ Right to Repair
Suing When a Company Breaks Its Warranty
When a company fails to honor a warranty, you can sue in either state or federal court.13Office of the Law Revision Counsel. 15 USC 2310 – Remedies in Consumer Disputes Damages typically cover the diminished value of the product or the cost of repairs the company should have done.
Federal court has a jurisdictional hurdle. Your individual claim must be worth at least $25, and the total amount in controversy in the suit must reach $50,000, excluding interest and costs. Most single-product disputes fall well below that mark, which puts state court in play for the vast majority of individual claims.
The real leverage for individual consumers is the fee-shifting provision. If you win, the court can order the company to pay your reasonable attorney’s fees and costs. That’s what makes warranty litigation viable at all, because hiring a lawyer over a $500 appliance would otherwise never pencil out. Fee awards are not automatic; a judge has discretion to deny them when circumstances make it inappropriate, but they’re available in most successful cases.
Class Actions
The act permits class actions for widespread defects, but with an unusually high federal barrier: at least 100 named plaintiffs plus the $50,000 amount-in-controversy threshold. That’s steeper than a typical federal class action, so state court is often the practical venue for class claims as well.
Informal Dispute Resolution and Arbitration
Many warranties require you to go through the company’s informal dispute resolution program before you can sue. The act allows this only when the program meets FTC standards under 16 CFR Part 703: free to consumers, staffed by independent decision-makers, and designed to reach a resolution within 40 days.14eCFR. 16 CFR Part 703 – Informal Dispute Settlement Procedures If the program falls short of those standards or doesn’t resolve your complaint, you keep the right to sue.
Whether a warranty can force you into binding arbitration is contested. The FTC has long taken the position that the act bars pre-dispute binding arbitration requirements, and the Ninth Circuit has upheld that reading. Other federal circuits haven’t all agreed, so enforceability can depend on where you live.
State Law and Filing Deadlines
The federal act sets a floor, not a ceiling. Nothing in the law overrides state consumer protections that give you more rights.15Office of the Law Revision Counsel. 15 USC 2311 – Applicability to Other Laws State lemon laws, consumer fraud statutes, and implied warranty rules often go further, and you can pursue federal and state claims together in the same suit. A single case might invoke Magnuson-Moss for fee-shifting and implied warranty protection while relying on a state statute for additional damages.
The act itself sets no federal statute of limitations. State law controls how long you have to file, and most states follow the Uniform Commercial Code default of four years from delivery, though the range across states runs from one year to six. Because these deadlines vary, check your state’s specific time limit early. Missing the filing window is the easiest way to lose a warranty case you would otherwise win.