When the other party to a contract does not do what they promised, the first question is whether what happened is a breach of contract or something else entirely. That distinction matters because it determines what you can do about it. Not every failure to perform is a breach. Not every breach justifies terminating the contract. And not every breach entitles the non-breaching party to the same remedies. Getting this wrong, particularly by terminating a contract in response to what turns out to be a minor or excusable non-performance, can put the terminating party in breach themselves.
Non-performance versus breach: why the distinction exists
Non-performance is the broader category. It simply means one party did not perform an obligation when and how the contract required. Breach is a specific legal conclusion: a non-performance that violates a material term of the contract and gives the other side legal remedies. Every breach is non-performance, but not every non-performance is a breach.
Several things can make non-performance not a breach. A cure period written into the contract gives the non-performing party a specified window to fix the failure before it becomes actionable. A force majeure clause may excuse non-performance caused by qualifying events. A waiver, where one party accepts late or partial performance without objection over time, can eliminate the right to treat similar non-performance as breach later. And a party who contributed to the other side's non-performance may be estopped from claiming breach based on that failure.
This matters practically because the remedies available for breach do not apply to excused non-performance. If a vendor delivers late but within an allowed cure period, the client cannot terminate the contract and cannot sue for breach damages. If a client accepts twelve late deliveries without complaint and then tries to terminate on the thirteenth, a court may find they waived the right to treat lateness as breach. The contract's specific terms, and the parties' conduct under it, both shape what counts as actionable non-performance.
Material breach versus minor breach: the line that determines your options
Not all breaches are equal. Courts distinguish between material breaches, which go to the heart of the contract and justify termination, and minor or partial breaches, which give rise to damages but do not excuse the non-breaching party from continuing to perform their own obligations.
A material breach defeats the purpose of the contract or substantially deprives the non-breaching party of the benefit they bargained for. A contractor who abandons a construction project halfway through has committed a material breach. A software vendor who delivers a product that does not function for its intended purpose has committed a material breach. A supplier who delivers goods that are fundamentally different from what was ordered has committed a material breach. In each case, the non-breaching party can treat the contract as terminated, stop their own performance, and sue for the full benefit of the bargain.
A minor breach, sometimes called a partial breach or immaterial breach, is a failure that does not destroy the contract's purpose. A contractor who finishes a project three days late when time was not declared essential has committed a minor breach. A vendor who delivers a product with a cosmetic defect that does not affect functionality has committed a minor breach. In these cases, the non-breaching party is entitled to sue for the damages caused by the specific failure, but they are not excused from their own performance obligations. Terminating the contract in response to a minor breach puts the terminating party in breach themselves.
Courts use several factors to assess materiality: how much the non-breaching party is deprived of the expected benefit, whether the non-performing party's failure was willful or negligent versus inadvertent, whether the non-performing party can adequately compensate the breach through damages, and whether the non-performing party would be harmed by finding a material breach. These factors make materiality a judgment call, and reasonable people can disagree. When the materiality of a breach is genuinely uncertain, getting legal advice before terminating is safer than terminating and defending the decision later.
Anticipatory breach: when one party signals they will not perform before the date arrives
An anticipatory breach, sometimes called anticipatory repudiation, occurs when one party clearly communicates before their performance is due that they will not perform. The communication can be explicit (a written statement that the party is canceling or refusing to perform) or can be inferred from conduct (selling to a third party the specific goods they were obligated to deliver to you, or taking steps that make performance impossible).
Anticipatory breach gives the non-breaching party a choice. They can treat the repudiation as an immediate breach, stop their own performance, and sue for damages right away without waiting for the performance date to arrive. Alternatively, they can urge the repudiating party to reconsider, continue their own performance, and wait to see if performance happens. The risk of waiting is that if the non-breaching party continues performing after a clear repudiation, they may be adding to their losses without a clear recovery path, and some jurisdictions limit damages to those incurred before the election to treat repudiation as breach was made.
Anticipatory breach doctrine is particularly useful in commercial contracts with long lead times. A supplier who announces two months before delivery that they cannot fill an order has given the buyer time to find an alternative. The buyer's cost of securing a replacement supplier on short notice is part of the damages recoverable from the repudiating supplier.
Remedies for breach: damages, termination, and specific performance
The primary remedy for breach of contract is compensatory damages, meaning money sufficient to put the non-breaching party in the position they would have been in had the contract been performed. This typically includes direct damages (the value of what was promised minus what was received) and consequential damages (downstream losses caused by the breach that were foreseeable at the time of contracting). Consequential damages are recoverable only if the breaching party had reason to know at the time of contracting that such losses would result from a breach.
Termination is available when the breach is material. The non-breaching party can declare the contract terminated, stop their own performance, and sue for the full benefit of the bargain they lost. Rescission is a related but distinct remedy: it unwinds the contract entirely, returning both parties to their pre-contract positions, and is appropriate when the non-breaching party wants to give back what they received and recover what they gave.
Specific performance, a court order requiring the breaching party to actually perform rather than pay damages, is available only in limited circumstances. Courts grant specific performance when monetary damages are inadequate to compensate the non-breaching party, typically because the subject matter of the contract is unique. Real estate contracts are the most common context, because every parcel of land is legally unique. Contracts for rare or one-of-a-kind goods, or for services that only a specific person can provide, may also support specific performance. For most commercial contracts involving fungible goods or services available elsewhere in the market, courts will not order specific performance and damages are the remedy.
The duty to mitigate applies to all damages claims. A non-breaching party cannot sit back, watch their losses accumulate, and then recover the full amount. They must take reasonable steps to reduce their losses once they know the other side is not going to perform. A landlord whose tenant stops paying rent must make reasonable efforts to re-let the property rather than simply letting it sit empty and suing for the full remaining rent. A buyer whose seller breaches must attempt to purchase comparable goods from another supplier at a reasonable price. Failure to mitigate reduces the recoverable damages by the amount that reasonable mitigation would have saved.
What to do when facing non-performance or breach
The first step is to read the contract carefully before doing anything else. Check for cure periods, notice requirements before termination, dispute resolution provisions that must be followed before suing, and any limitation of liability clauses that cap recoverable damages. Many contracts require written notice of the alleged breach and a specified cure period before the non-breaching party can terminate or sue. Skipping that notice and cure process can waive remedies or put the non-breaching party in the wrong procedurally.
Send a formal written notice that identifies the specific obligation that was not performed, cites the contract provision that required it, states the consequences if the failure is not cured, and specifies a cure deadline consistent with the contract. Keep a copy and document delivery. This notice does several things at once: it preserves the right to claim breach, starts the cure clock running, creates a paper trail showing the other side was aware of the problem, and sometimes prompts a resolution without litigation.
Document losses as they accumulate. Invoices from replacement suppliers, records of delayed production, costs of working around the failure, and evidence of lost business opportunities all support a damages claim. Courts require proof of damages, not just a showing that a breach occurred.
A Real Scenario
A Texas marketing agency contracts with a web developer to deliver a redesigned website by March 1 for a product launch. The developer delivers on March 14 with all features functional but with placeholder images the agency had to replace themselves, a two-hour task. The agency, frustrated with the delay, sends a letter purporting to terminate the contract and refusing to pay the final invoice of $18,000. The developer sues. The court finds the delay was a minor breach that did not materially deprive the agency of the contract's benefit, the website was functional and usable, and the agency's termination was itself a material breach of their payment obligation. The agency owes the $18,000 plus the developer's attorney fees under a fee-shifting clause the agency did not notice when they signed.
Frequently Asked Questions
Can I withhold payment if the other side has not performed?
It depends on whether performances are dependent and whether the other side's failure is a material breach. In many contracts, payment is conditioned on performance, meaning you are not obligated to pay until the other side has substantially performed. If the failure is material, withholding payment is likely justified. If the failure is minor, withholding the full payment amount may itself be a breach, though you may be able to offset the specific damages caused by the minor breach against the amount owed. The contract language controls, and reviewing it carefully before withholding payment is strongly advisable.
What is the difference between terminating a contract and rescinding it?
Termination ends the contract going forward but generally preserves claims for damages arising from the breach. Each party keeps what they have already received, and the non-breaching party sues for the value of what they lost from the breach forward. Rescission unwinds the contract entirely as if it never happened: both parties return what they received, and the goal is to restore the pre-contract status quo. Rescission is appropriate when the breach is so fundamental, or was accompanied by fraud or misrepresentation, that the entire basis for the contract has failed. Damages and rescission are generally alternative remedies, not cumulative ones.
How long do I have to sue for breach of contract?
The statute of limitations for contract claims varies by state and sometimes by contract type. Most states allow three to six years for written contract claims. California allows four years for written contracts. New York allows six years. Texas allows four years. Illinois allows five years. Florida allows five years for written contracts. The clock generally starts running when the breach occurs, or in some states when the non-breaching party knew or should have known of the breach. Missing the statute of limitations is an absolute bar to recovery, which is why consulting an attorney promptly when a significant breach occurs is important even if litigation is not the preferred outcome.
Does a "no waiver" clause in the contract protect me if I accepted late performance before?
A no-waiver clause states that a party's failure to enforce a contract provision at any given time does not waive their right to enforce it in the future. These clauses are generally enforceable and provide meaningful protection against the argument that accepting late performance repeatedly has waived the right to enforce the deadline. However, courts in some jurisdictions require the party relying on the no-waiver clause to have given notice that they are resuming strict enforcement before holding the other side to the original terms. Simply citing the no-waiver clause without any communication to the other side may not always be sufficient, particularly if the pattern of accepted non-performance was long-established.