What is an express warranty?
An express warranty is a specific representation concerning goods that becomes part of the basis of the bargain. It may arise from an affirmation of fact, a promise, a product description, or a sample or model.
The central idea is conformity. When the seller makes an express warranty, the goods are expected to conform to the factual statement, promise, description, sample, or model.
Express warranties can concern:
- Product materials or composition
- Capacity, dimensions, weight, or quantity
- Performance or operating characteristics
- Compatibility with another product or system
- Condition, age, origin, or manufacturing method
- Included parts, accessories, or features
- Conformity with a displayed sample or model
How is an express warranty created?
Under the Uniform Commercial Code framework adopted in some form by states, an express warranty may be created in three principal ways:
Affirmation of fact or promise
A factual statement or promise relating to the goods may create an obligation that the goods will conform to it.
Description of the goods
A product description that becomes part of the transaction may create an obligation that the goods will match that description.
Sample or model
A sample or model used as part of the transaction may create an obligation that the delivered goods will conform to it.
Transaction context
Timing, specificity, seller knowledge, documentation, and the role of the representation in the transaction can affect the analysis.
Formal words such as warrant or guarantee are not necessarily required. A seller also does not necessarily need to state a separate intention to create a warranty.
Factual affirmations and promises
A factual affirmation is a representation capable of being tested or verified. A promise concerns what the goods are, contain, provide, or will do.
Measurable statements
Statements involving capacity, dimensions, performance, operating time, compatibility, material, quantity, or other measurable features may be more likely to be treated as factual.
Examples might include:
- The battery provides a specified operating duration.
- The container holds a stated volume.
- The material is identified as a specific metal or fabric.
- The device is compatible with a named system.
- The product includes a particular component or feature.
- The equipment can operate under specified conditions.
Condition and history statements
Statements that goods are new, unused, rebuilt, refurbished, free from a named condition, or manufactured during a stated period may also be factual representations.
Future performance promises
A statement promising future product performance may create an express warranty when it is sufficiently definite and becomes part of the basis of the bargain.
Product descriptions and specifications
A product description can create an express warranty that the goods will conform to the description.
Descriptions may appear in:
- Online product pages
- Catalogs and brochures
- Packaging and labels
- Invoices and purchase orders
- Technical specifications
- Seller emails and messages
- Listings for new or used goods
Product descriptions may identify model, size, material, capacity, compatibility, included accessories, manufacturing origin, condition, or other characteristics.
Conflicting descriptions
When a product page, package, invoice, and final agreement contain different descriptions, determining which representation became part of the transaction can require closer review.
Save the exact version of the listing and description that existed when the purchase was made.
Samples, models, and demonstrations
A sample or model can create an express warranty that the delivered goods will conform to what was shown.
Samples
A sample may represent the color, texture, material, quality, construction, finish, or performance of goods supplied later.
Samples commonly matter in transactions involving:
- Flooring and carpeting
- Paint, coatings, and finishes
- Fabric and upholstery
- Building materials
- Manufactured parts
- Bulk goods and agricultural products
Models
A display product or model may show structure, dimensions, controls, operation, design, or included features.
Demonstrations
A seller's demonstration may also communicate factual information about how the product operates. Record what was demonstrated and whether the delivered goods behaved differently.
What may not create an express warranty?
Not every sales statement is an express warranty. General praise, opinion, estimates, and promotional language may not create a warranty when they do not state a sufficiently definite product fact.
General praise
Statements such as excellent, premium, or best may be too general to establish a specific product obligation.
Seller opinion
A personal recommendation or belief may differ from an affirmation of fact.
Estimate
An estimate may be uncertain by nature, although context and specificity can still matter.
Future aspiration
A broad statement about goals or expected development may not be a promise about the goods actually sold.
Fact vs opinion
The distinction is not always obvious. Relevant factors may include the seller's expertise, the buyer's ability to verify the statement, the specificity of the language, the product type, and the context in which the statement was made.
A statement that sounds promotional can still contain a concrete factual claim. Separate the measurable portion from the surrounding sales language.
Does an express warranty have to be written?
An express warranty does not always have to be contained in a formal written warranty document. It may arise from spoken statements, advertisements, product descriptions, messages, samples, models, or demonstrations, depending on the transaction and applicable state law.
Written evidence is usually easier to preserve and prove. Spoken promises may create disputes about exact wording, timing, context, and who heard the statement.
Useful written evidence
- Saved product pages
- Advertisements and brochures
- Packaging and labels
- Emails, chats, and text messages
- Purchase orders and invoices
- Technical specifications
- Signed contracts and amendments
Oral statements
Record the date, location, speaker, exact language, witnesses, and transaction context as soon as possible. Applicable contract terms and state law may affect how oral representations are treated.
Express warranty vs written warranty
Express warranty and written warranty are related but not identical concepts.
Express warranty is commonly discussed under state sales law and may arise from factual promises, descriptions, samples, or models.
Written warranty has a specific meaning under the federal Magnuson-Moss Warranty Act. When a business chooses to offer a covered written consumer product warranty, federal designation and disclosure requirements may apply.
| Question | Express warranty | Federal written warranty |
|---|---|---|
| Primary legal framework | Commonly state sales law | Magnuson-Moss and related federal rules |
| Must it be in writing? | Not necessarily | Yes, by definition |
| Can description create it? | Yes, depending on the transaction | Depends on whether the federal statutory definition is met |
| Can a sample create it? | Yes | Not automatically a federal written warranty |
| Full or limited designation? | Not automatically applicable | May be required for covered written warranties |
Express warranty vs implied warranty
An express warranty arises from an actual affirmation, promise, description, sample, or model connected to the transaction.
An implied warranty arises by operation of applicable law rather than from a specific express statement. Common examples include the implied warranty of merchantability and the implied warranty of fitness for a particular purpose.
A single product sale may involve both express and implied warranties. Failure of one theory does not automatically decide the other.
Different questions
- Express warranty asks whether the goods conformed to an actual factual promise or representation.
- Implied merchantability commonly asks whether the goods were fit for their ordinary purpose and met applicable merchantability standards.
- Implied fitness commonly asks whether the seller knew a particular purpose and the buyer relied on the seller's skill or judgment.
Express warranty vs manufacturer warranty
Express warranty describes how a warranty obligation may arise. Manufacturer warranty identifies the manufacturer as the provider of a warranty.
An express warranty may be made by:
- A manufacturer
- A retailer
- A dealer
- A distributor
- A commercial seller
- Another party making a product representation
A manufacturer warranty is often written, but sellers can make separate express warranties through their own descriptions or promises.
How to prove an express warranty
A strong record identifies the exact representation, who made it, when and where it appeared, how it related to the transaction, and how the goods failed to conform.
Preserve the promise
Save:
- Advertisements and screenshots
- Product listings and specifications
- Packaging and labels
- Emails, messages, and chat transcripts
- Invoices, orders, and contracts
- Photographs of samples or display models
- Names of sales representatives and witnesses
Preserve the nonconformity
Document how the goods differed using photographs, video, measurements, test results, inspection reports, repair records, product labels, serial numbers, and expert findings where appropriate.
Preserve timing
Record when the representation was made, when the goods were purchased, when they were delivered, when the difference was discovered, and when notice was provided.
What is a breach of express warranty?
A breach of express warranty may occur when the goods fail to conform to the affirmation, promise, description, sample, or model that created the warranty.
Examples may include:
- The product lacks a promised feature.
- The capacity is lower than the stated capacity.
- The material differs from the product description.
- The goods are used or refurbished despite being sold as new.
- The goods do not match the approved sample.
- The product is incompatible despite a specific compatibility promise.
- The promised performance is not achieved.
Not every failure proves breach
The claimant still needs to identify the express representation, establish its connection to the transaction, and show that the goods did not conform.
Notice to the seller
State sales law may require the buyer to notify the seller of a claimed breach within a reasonable time. Provide written notice promptly and keep proof.
Can an express warranty be disclaimed?
Contract language may attempt to limit warranties or remedies, but a seller cannot easily reconcile a clear factual promise with language directly contradicting that same promise.
Under the UCC framework, warranty creation and disclaimer language should be interpreted consistently where reasonable. Language negating or limiting an express warranty may be ineffective to the extent that the two cannot reasonably be reconciled.
As-is language
As-is language is often associated with implied-warranty exclusions. It does not necessarily erase a specific express factual promise made about the goods.
Remedy limitations
A seller may separately limit the remedy to repair, replacement, refund, credit, or another stated option. Whether a remedy limitation is enforceable can depend on the wording, transaction, state law, and whether the remedy performs its intended function.
How to make an express warranty claim
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Identify the exact representation
Quote or preserve the factual promise, description, sample, or model relied on in the transaction.
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Identify who made it
Determine whether the representation came from the manufacturer, seller, dealer, distributor, or another party.
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Document the transaction
Save the order, receipt, contract, listing, advertisement, messages, and product records.
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Document nonconformity
Show specifically how the delivered goods differ from the promise, description, sample, or model.
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Provide written notice
Notify the appropriate seller or warrantor promptly and retain proof of delivery.
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Request a stated remedy
Explain whether you are requesting repair, replacement, refund, price adjustment, or another remedy supported by the agreement and applicable law.
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Request the response in writing
Ask the seller to identify any factual dispute, disclaimer, limitation, or remedy provision supporting its decision.
Questions to ask when reviewing a possible express warranty
- What exact factual statement or promise was made?
- Who made the representation?
- Did it relate directly to the goods?
- Was it made before or during the transaction?
- Did it appear in a description, sample, or model?
- Was it measurable or objectively verifiable?
- Was it fact, opinion, or a mixture of both?
- What evidence preserves the representation?
- How did the goods fail to conform?
- When was the difference discovered?
- Was written notice provided?
- What remedy or limitation appears in the agreement?
Frequently asked questions
Express warranty FAQs
What is an express warranty?
An express warranty is a specific factual affirmation, promise, product description, sample, or model relating to goods that becomes part of the basis of the bargain and creates an obligation that the goods will conform.
Does an express warranty have to use the word warranty?
No. Formal words such as warranty or guarantee are not necessarily required. The substance of the factual promise or description and its role in the transaction matter.
Does an express warranty have to be written?
Not always. An express warranty may arise from written, spoken, advertised, displayed, or demonstrated representations, depending on the transaction and applicable law. Written evidence is usually easier to preserve and prove.
Can a product description create an express warranty?
Yes. A description of goods that becomes part of the basis of the bargain may create an express warranty that the goods will conform to that description.
Can a sample or model create an express warranty?
Yes. A sample or model that becomes part of the basis of the bargain may create an express warranty that the goods will conform to it.
Does every sales statement create an express warranty?
No. A seller's opinion, recommendation, estimate, or general praise may not create an express warranty. The distinction between fact and opinion depends on wording, context, product knowledge, and transaction facts.
Is an express warranty the same as a written warranty?
Not necessarily. Express warranty is a broader state-law concept. A federal written warranty under the Magnuson-Moss Warranty Act has a specific statutory definition and disclosure framework.
What happens when an express warranty is breached?
A breach may occur when the goods do not conform to the factual promise, description, sample, or model. Available remedies depend on the contract, applicable state law, federal law where relevant, notice, evidence, and other transaction facts.