A waiver clause keeps a right alive even when you do not enforce it. The short version: if a counterparty pays late and you let it slide once, the clause says you have not given up the right to insist on on-time payment next time, or to call a default later. Without it, a pattern of letting things slide can quietly strip you of a remedy you thought you still had.
TL;DR
- A waiver clause says that failing to enforce a right once does not waive it, and that any waiver must be express and in writing to count.
- The real risk it controls is course of dealing: a repeated pattern of tolerating a breach can, over time, be read as an implied agreement to modify the deal. The clause is your defense against that argument.
- A waiver is specific, not global. Excusing one late payment waives that instance; it does not permanently waive the right to timely payment unless the clause (or your conduct) says so.
- The strongest version pairs no implied waiver with a non-exclusive remedies line and a written-waiver-only requirement signed by an authorized person.
- The clause is not bulletproof. Conduct can still beat boilerplate in many states. The safe move is to send a short reservation-of-rights note when you choose not to enforce, not to rely on the clause alone.
What a waiver clause actually does
A waiver is the voluntary, knowing surrender of a known right. The clause governs when that surrender happens and when it does not. It has three jobs.
1. No waiver by inaction. It states that a party's failure or delay in exercising a right is not a waiver of that right. You can sit on a remedy without losing it.
2. No waiver of future or other breaches. It says that waiving one breach does not waive any later breach, or any other right. Letting one milestone slip does not excuse the next one.
3. Writing and signature required. It requires any waiver to be express, in writing, and signed by the party giving it (often by an authorized officer). This blocks the argument that an email, a phone call, or silence amounted to a waiver.
The clause does not create rights. It protects rights that already exist in the contract from being eroded by how the parties behave after signing.
Why it matters: the dollars at stake
Picture a supply agreement that requires payment net 30, with a right to suspend deliveries and charge interest on late payment. Call it an illustrative example: the buyer pays 45 to 60 days late for eight straight months on roughly $200,000 of monthly invoices, and the seller, not wanting to rock a good relationship, never objects.
- In month nine the seller finally suspends deliveries for non-payment. The buyer sues, arguing the parties established a course of dealing that effectively reset the payment term to 60 days, so the suspension was itself a breach.
- With a strong no-waiver clause plus contemporaneous reservation-of-rights notes, the seller has a clean answer: each late payment was tolerated, not waived, and no writing ever changed the term.
- With no clause and eight months of silence, the seller may be found to have waived strict net-30 enforcement, owe damages for the wrongful suspension, and lose the interest it never charged.
Same facts, and the swing can run into six figures, decided by whether the right was preserved or quietly given away.
Who wants what
| Party relying on enforcement (often seller / licensor) | Party hoping for flexibility (often buyer / licensee) | |
|---|---|---|
| No implied waiver | Strong, covers delay and partial enforcement | Narrower, or silent |
| Future breaches | Each breach independent, no carryover | Wants tolerance to count going forward |
| Form of waiver | Express, written, signed by an officer | Looser, conduct or email can suffice |
| Course of dealing | Disclaim that conduct modifies the contract | Wants conduct to be able to modify |
| Remedies | Cumulative and non-exclusive | One election of remedy forecloses others |
The pattern: the party that wants to keep its enforcement powers wants every escape hatch shut, and the party that benefits from leniency wants room to argue that tolerance, over time, became the new deal.
Market-standard language
A typical mutual waiver clause reads close to this:
WAIVER. No failure or delay by either party in exercising any right,
power, or remedy under this Agreement will operate as a waiver of that
right, power, or remedy, and no single or partial exercise of any right,
power, or remedy will preclude any other or further exercise of it or of
any other right, power, or remedy. No waiver of any provision of this
Agreement, or of any breach or default, will be effective unless it is in
writing and signed by an authorized representative of the party against
whom the waiver is asserted. A waiver of any breach or default will not
be deemed a waiver of any later breach or default. All rights and
remedies are cumulative and not exclusive of any rights or remedies
provided by law.
The "cumulative and not exclusive" sentence is doing quiet work. Without it, a counterparty can argue that by choosing one remedy (say, charging interest) you elected it and gave up the others (say, termination). Keep it.
The negotiation: standard, fallback, walk-away
| Issue | Opening position | Fallback both sides accept | Walk-away |
|---|---|---|---|
| Implied waiver | No waiver from delay or partial enforcement | Same, but mutual | Conduct alone can waive |
| Future breaches | Each breach independent | Same | Tolerating one excuses later ones |
| Form of waiver | Written and signed by an officer | Written and signed | Oral or email waiver allowed |
| Course of dealing | Express disclaimer that conduct modifies terms | Rely on no-waiver plus no-oral-modification | Silent on course of dealing |
| Remedies | Cumulative and non-exclusive | Same | Election of one forecloses others |
The cheapest win here is to make sure the clause is mutual and the writing requirement names an authorized signer. Most counterparties accept it because it cuts both ways.
Common carve-outs / variations
The waiver clause does not vary as wildly as a liability cap, but a few versions matter.
- One-time written waiver. A standalone waiver for a single, named breach, expressly stating it is not a waiver of any other or future breach. Useful when you genuinely want to excuse one event without opening the door.
- Reservation of rights. Not a waiver at all, the opposite: a notice that says you are tolerating a breach without giving up any remedy. This is the practical companion to the clause.
- Election of remedies disclaimer. The "cumulative remedies" line, sometimes broken out so pursuing one remedy never forecloses another.
- Authorized-signer requirement. Naming who can sign a waiver (an officer, not any employee) blocks the "your account manager said it was fine" argument.
A focused one-time waiver looks like this:
The party hereby waives the [specific breach] described above. This waiver
is limited to that breach, is granted as a one-time accommodation, and is
not a waiver of any other or future breach or of any right or remedy under
this Agreement.
Jurisdiction and enforceability notes
No-waiver clauses are generally enforced, but they interact with how courts read the parties' actual behavior.
- Course of dealing and course of performance. Under the UCC for sales of goods, and under common law generally, the parties' conduct can inform or even modify the meaning of an agreement. A no-waiver clause pushes against that but does not always win when the conduct is long and consistent.
- Reliance matters. Where a counterparty reasonably and detrimentally relied on your repeated tolerance, some states will find a waiver or estoppel despite the clause. The longer the pattern, the higher the risk.
- Writing requirements. A clause requiring written, signed waivers is widely respected, and it pairs naturally with a no-oral-modification provision. Together they make the "you told me it was okay" argument much harder.
- Election of remedies. Absent a cumulative-remedies clause, choosing one remedy can be read as giving up others in some states. The clause language matters more than the default rule.
This is general information, not legal advice for a specific deal. Whether conduct has waived a right turns on the governing law and the facts; confirm against the controlling state's law before you rely on the clause alone. For the partner rule on written-only changes, see our guide on amendment clauses.
Review checklist: red flags to catch
- The clause covers express waivers but not delay or partial enforcement, leaving the implied-waiver gap open.
- No writing-and-signature requirement, so an email or a call could be argued as a waiver.
- The writing requirement does not name an authorized signer, exposing you to "your rep agreed" claims.
- No cumulative-remedies line, so electing one remedy could forfeit the rest.
- The clause is one-sided, protecting only the counterparty's rights from waiver.
- No no-oral-modification companion, weakening the writing requirement.
- The contract has a history of tolerated breaches with no reservation-of-rights notes, the live exposure the clause is meant to address.
How it interacts with other clauses
The waiver clause works in a tight cluster with the rest of the boilerplate.
- Amendment: the no-oral-modification rule and the written-waiver rule reinforce each other; conduct cannot quietly rewrite the deal if both are present.
- Entire agreement: together they limit arguments that side conversations or prior dealings changed the written terms.
- Notices: your reservation-of-rights letters and any written waiver should go out through the contract's notice mechanics to be effective.
- Termination: a missed enforcement should not blunt your right to terminate for a later default; the no-waiver clause keeps that right intact.
For the broader workflow, see the in-house contract review playbook.
FAQ
What is a waiver clause? It is a contract provision that says failing to enforce a right does not give it up, and that any waiver must be express, in writing, and signed to count. It protects your remedies from being eroded by how the parties behave after signing.
If I let a breach slide once, have I waived it forever? Generally no, especially with a no-waiver clause. Excusing one instance waives that instance, not the underlying right. The risk grows when you tolerate the same breach repeatedly without objecting, which can build a course of dealing.
What is course of dealing and why does it matter here? Course of dealing is a pattern of conduct between the parties that a court can use to interpret or even modify the contract. A long, consistent practice of tolerating a breach can be read as an implied change to the deal, which is exactly what the no-waiver clause is meant to prevent.
Can a no-waiver clause be overridden by conduct? Sometimes. In many US states a sustained course of conduct, or detrimental reliance by the other side, can override even an express no-waiver clause. The clause is strong evidence, not an absolute shield, so back it up with written reservation-of-rights notes.
What is a reservation of rights? It is a short written notice stating that you are choosing not to enforce a right for now without giving it up. It is the practical companion to a waiver clause: it lets you be flexible while keeping your remedies on the record.
Why require waivers to be in writing and signed? A written, signed requirement blocks the argument that an email, a phone call, or silence amounted to a waiver. Naming an authorized signer further blocks the claim that a junior employee agreed to give up a right.
What does cumulative and non-exclusive remedies mean? It means choosing one remedy does not forfeit the others. Without it, a counterparty can argue that by electing one remedy, such as charging interest, you gave up another, such as termination.
Related clauses
Clauses that get negotiated alongside this one.
