Warranty vs Guarantee

Last updated: February 2025

Quick Comparison

AspectWarrantyGuarantee
Legal meaningA promise about facts, quality, or conditionA promise to answer for another's obligations, or a commitment to repair/replace
PartiesBetween the contracting partiesOften involves a third party (guarantor)
Breach remedyDamages only; no right to terminate for breach of warranty alonePerformance of the guarantee obligation (payment, repair, or replacement)
FormalityNo specific formality requiredMust be in writing under the Statute of Frauds 1677 for guarantees of debt

What Is a Warranty?

A contractual promise or assurance about the quality, condition, or performance of goods, services, or stated facts. In contract law, a minor term whose breach entitles damages but not termination.

Key Features

  • A statement of fact or promise about quality or condition
  • Breach gives right to damages but not automatic right to terminate
  • Commonly used in commercial contracts and M&A transactions
  • Disclosure against warranties limits the warrantor's liability

Best For

  • Commercial contracts requiring assurances about quality or facts
  • M&A transactions with warranties and disclosures
  • Service contracts promising a standard of performance

What Is a Guarantee?

A promise to answer for another party's debt, default, or obligations, or a manufacturer's commitment to repair or replace faulty goods.

Key Features

  • In contract law, a secondary obligation dependent on primary debtor's default
  • Must be in writing and signed under the Statute of Frauds 1677
  • In consumer context, a manufacturer's voluntary promise to repair or replace
  • Consumer guarantees are in addition to statutory rights

Best For

  • Securing payment obligations through a third-party guarantor
  • Manufacturer commitments on product quality and durability
  • Landlord-tenant arrangements where a guarantor backs the lease

When to Use a Warranty

Use warranties in commercial contracts to require assurances about the condition, quality, or accuracy of information. In M&A deals, warranties from the seller provide the buyer with contractual claims if statements prove untrue.

When to Use a Guarantee

Use guarantees when you need a third party to stand behind someone else's obligations, such as a parent company guaranteeing a subsidiary's debts, or when offering consumers a product quality commitment.

Which Does Your Business Need?

If you need assurances about quality or facts within a direct contractual relationship, use warranties. If you need security from a third party for someone else's obligations, use a guarantee. In consumer contexts, manufacturer guarantees supplement but cannot replace statutory rights.

FAQ

Does a manufacturer's guarantee replace my statutory rights?

No. Under UK consumer law, a manufacturer's guarantee is in addition to your statutory rights under the Consumer Rights Act 2015. Your rights to reject faulty goods, request repair, or get a refund are unaffected by any guarantee terms.

What is the difference between a warranty and a condition in contract law?

A condition is a fundamental term whose breach entitles the innocent party to terminate the contract and claim damages. A warranty is a lesser term whose breach only entitles the innocent party to damages. The classification determines the available remedies.

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This is guidance for UK businesses, not legal advice. Consult a solicitor for complex matters.

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