Material Breach
A serious failure to perform that defeats the whole purpose of the contract.
While straightforward in theory, many businesses fail to actively track obligations tied to this concept - often resulting in missed deadlines, unintended renewals, penalties, or loss of contractual rights.
US Law · For business owners and foundersWhat is a Material Breach?
A material breach is a failure to perform a contractual obligation that is so significant it defeats the core purpose of the agreement. When a material breach occurs, the non-breaching party has the right to treat the contract as terminated, stop their own performance, and sue for the full benefit of the bargain they lost.
Not every contract failure is a material breach. Courts distinguish between material breaches - which justify termination - and minor (or partial) breaches, which entitle the injured party to damages but do not excuse them from continuing to perform their own obligations. Getting this distinction wrong is costly: if you declare a contract terminated based on what turns out to be only a minor breach, you may become the breaching party.
In practice, many teams rely on a contract expiry tracking system to stay on top of dates and obligations tied to clauses like this.
Key Elements
The Materiality Test
Courts typically apply a multi-factor test drawn from the Restatement (Second) of Contracts: How much was the non-breaching party deprived of the benefit they expected? Can that deprivation be adequately compensated with money? Will the breaching party suffer a disproportionate forfeiture? Did the breaching party act in good faith? These factors are weighed together - no single one is decisive.Effect on the Non-Breaching Party's Obligations
When a material breach occurs, the non-breaching party's duty to perform is suspended and ultimately discharged. They can stop performing immediately. With a minor breach, they must continue performing and can only pursue damages for the partial failure.Time-Sensitive Obligations
When a contract contains a "time is of the essence" clause, a deadline failure is more likely to be treated as material. Without such a clause, courts are more flexible and may treat late performance as only a minor breach if substantial performance was delivered.Anticipatory Breach
A party can commit a material breach before performance is even due by clearly indicating they will not perform. This is called anticipatory repudiation. The non-breaching party can treat it as an immediate material breach and sue without waiting for the deadline to arrive.Real-World Example
PrimeLogic hires CloudBuild to develop a custom e-commerce platform for $180,000, with a go-live date of March 1 - expressly stated as "time is of the essence" because PrimeLogic has a spring product launch. CloudBuild delivers on April 15, six weeks late, with the core shopping cart and checkout functionality working but without the product recommendation engine that was a key contract deliverable.
PrimeLogic has a strong material breach argument on two grounds. First, the six-week delay past a time-is-of-the-essence deadline deprived PrimeLogic of the benefit of its spring launch - the primary reason the deadline was set. Second, the missing recommendation engine was a specified deliverable, not an optional feature. PrimeLogic can likely terminate, recover its payment, and claim damages for the costs of finding a replacement developer and the lost revenue from the delayed launch.
This is why many businesses adopt automated deadline tracking to ensure no critical dates are missed before they pass.
Sample Clause Language
Material Breach and Cure ClauseWatch Out For
Terminating based on a minor breach
If you declare a contract terminated and a court later finds the breach was only minor, you become the breaching party. The other side can then sue you for damages. Before terminating, evaluate carefully whether the breach actually defeated the core purpose of the deal - and if in doubt, consult a lawyer before acting.Waiving a material breach through continued performance
If you continue accepting the other party's performance after learning of a material breach - especially without reserving your rights in writing - a court may find you waived the breach. Always send a written reservation of rights if you continue the relationship after a breach.Ignoring the cure period requirement
Many contracts require you to give written notice and a cure period before you can terminate for material breach. Terminating without following this process - even for a clear material breach - can expose you to a wrongful termination claim. Follow the contract's notice and cure procedure exactly.Don't let material breach deadlines catch you off guard
Key dates tied to material breachs - renewal windows, expiry cutoffs, notice periods - can easily slip through the cracks when tracked manually. Missing them triggers automatic extensions, penalties, or lost rights. ExpiryEdge tracks every critical deadline and sends automated reminders before they're due - so nothing slips.
Instead of relying on spreadsheets or manual follow-ups, a centralized renewal reminder system ensures every deadline is visible, tracked, and actioned automatically.
How to Use This in Your Favor
Define material breach explicitly in high-stakes contracts
Rather than leaving materiality to judicial interpretation, define specific events that constitute material breaches. For example: "Failure to deliver any Milestone within 14 days of the due date shall constitute a material breach." Clear definitions reduce litigation risk for both sides.Include an anticipatory breach provision
Add language allowing you to treat clear signals of non-performance as an immediate material breach - for example, if the other party publicly announces insolvency, abandons performance, or expressly states they will not perform. This lets you act immediately rather than waiting for an actual deadline to pass.Document the breach before terminating
Before sending a termination notice, compile documentation: missed deliverables, unanswered communications, site visits showing non-performance, financial statements if insolvency is an issue. A well-documented record strengthens your position in any litigation that follows.Frequently Asked Questions
How do courts decide if a breach is material or minor?
Courts look at the totality of circumstances using factors from the Restatement (Second) of Contracts Section 241: how much benefit was lost, whether money can compensate the loss, how likely the breaching party is to cure, the extent to which the breaching party has performed so far, and whether they acted in good faith. No single factor controls.
What is the difference between a material breach and an anticipatory breach?
A material breach occurs when a party actually fails to perform an obligation that was due. An anticipatory breach (or repudiation) occurs before performance is due - when a party clearly communicates they will not perform. Both give the non-breaching party the right to treat the contract as terminated and sue for damages.
Can a party cure a material breach?
Yes, if the contract provides a cure period. Many commercial contracts require the non-breaching party to give written notice and allow 30 days to cure before they can terminate. If the breach is cured within that window, the non-breaching party must continue performance. Some breaches - like abandonment of a project - are incurable by nature.
Does substantial performance prevent a material breach finding?
Substantial performance is a doctrine that prevents a party from being found in material breach when they have completed most of their obligations with only minor deviations. It is most commonly applied in construction cases. But if the deviations go to the core of the contract - like missing a required specification - substantial performance will not shield the breaching party.