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Express Warranty

An express warranty is a clear promise, written or spoken, from a seller about the quality, performance or condition of what is being sold. If the product fails to live up to the promise, the buyer can seek a repair, replacement or refund.

It differs from an implied warranty, which the law creates automatically.

From the Money Master HQ dictionary, founded by Shihan Sheriff (FCMA, VP of Finance at Nomod, CFO at Esanjo Ventures). How these definitions are written.

What it means

Any specific statement of fact that a seller makes about a product can create an express warranty. A label that says "waterproof to 50 metres," a brochure promising "five-year coverage" or a salesperson stating "this machine produces 200 units an hour" can all count.

The seller does not need to use the word warranty or guarantee. Express warranties matter because they turn marketing claims into legal obligations.

If a business makes a promise to win a sale and the product falls short, it may owe the customer compensation. Sales and marketing teams therefore need to understand that enthusiastic claims have financial consequences.

Common forms include manufacturer warranties covering parts and labour for a set period, written service guarantees, and performance statements in contracts. Some are free and included in the price, while others are sold separately as extended warranties.

The terms usually state what is covered, for how long, and what the buyer must do to claim. From an accounting view, a business that gives a warranty must estimate the cost of honouring it and record a provision (a liability for a likely future cost) at the time of sale.

Matching the cost to the revenue gives a truer picture of profit. If the estimate is too low, later claims will hit profit unexpectedly.

The estimate rests on history. Companies look at past claim rates, the average cost of each repair and any change in product quality.

A new product with no history needs a more cautious assumption, which is reviewed as real claims arrive. Exclusions and conditions are an important part of the wording.

Warranties often exclude misuse, normal wear and unauthorised repairs, and may require the buyer to register the product or follow a maintenance schedule. Clear wording reduces disputes and keeps the provision realistic.

In practice

Real-world examples.

1

Example

A bicycle maker advertises a lifetime warranty on its frames. A customer's frame cracks after four years, and the company replaces it for free. Finance had included an estimate for such claims in its provision when the bike was sold.

2

Example

A software vendor states in the contract that its system will process 10,000 transactions an hour. The customer's tests show only 6,000, and the vendor must fix the issue or refund part of the fee. The promised figure was an express warranty.

3

Example

A used car dealer says in writing that the engine is covered for 90 days. When the gearbox fails in week three, the dealer declines to pay because the written statement named the engine only. The customer learns that an express warranty covers exactly what it says and no more.

Formula

Calculation

Warranty provision = units sold x expected claim rate x average cost per claim Suppose a company sells 20,000 appliances in a year, each with a two-year warranty. Based on history, it expects 3% of units to need a claim, and the average repair costs $120. Number of claims = 20,000 x 0.03 = 600. Warranty provision = 600 x 120 = $72,000. This is recorded as an expense and a liability when the appliances are sold, and later repair costs are charged against the liability.

Case study

Seen in the real world.

Alderbrook Appliances is an illustrative, fictional company that launched a new dishwasher with a three-year warranty. The marketing team promoted it as "trouble-free for three years," and sales of 15,000 units beat the plan.

Within a year, the claim rate was 8% against the 3% originally assumed, because a pump component was failing early. The finance team raised the provision by $180,000 and told the board that profit would be lower.

In this fictional story the company redesigned the pump and tightened the advertising wording. The lesson is that express warranties create real liabilities and that provisions should be updated as soon as claim data changes.

Watch out

Common mistakes.

  • Treating marketing claims as harmless, when specific promises can create binding warranties.
  • Recording warranty costs only when claims arrive, instead of estimating them at the time of sale.
  • Using an old claim rate for a redesigned product without checking whether the risk has changed.

Questions

People also ask.

What is the difference between an express and an implied warranty?

An express warranty is stated by the seller, while an implied warranty is created by law, such as the basic expectation that a product is fit for its normal use.

Does a business have to offer an express warranty?

Generally no, but if it chooses to, it must honour the terms it states and comply with consumer protection rules.

Is an extended warranty the same as an express warranty?

An extended warranty is usually a separate paid contract, though it is also an express promise and has its own accounting treatment.

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Last updated · October 8, 2026
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The information provided in this finance dictionary is for educational and informational purposes only. It should not be construed as financial, investment, legal, or tax advice. Always consult with a qualified professional before making any financial decisions. Money Master HQ makes no representations or warranties about the accuracy, completeness, or suitability of this information. Use of this content is at your own risk.