NDA vs confidentiality clause: do I need a separate NDA if my contract has one?
Written by For Founders Law, a Toronto firm licensed by the Law Society of Ontario. About us
Short answer
A standalone NDA protects information you share before there's a deal, such as during a pilot discussion or partnership talks; a confidentiality clause protects information exchanged while a signed contract is being performed. Once the main contract is signed, its confidentiality clause usually takes over, and an entire agreement clause can replace the earlier NDA unless the contract keeps it alive. You rarely need both for the same information at the same time.
An NDA and a confidentiality clause do the same basic job: they say what information is confidential, what the recipient may do with it and for how long. The difference is timing and context.
How do they compare?
| Standalone NDA | Confidentiality clause in a contract | |
|---|---|---|
| When it’s signed | Before a deal exists | As part of the main agreement: MSA, SaaS, employment or contractor agreement |
| What it protects | Information shared to explore or evaluate a possible deal | Information exchanged while the contract is performed |
| Permitted use | Usually only to evaluate the deal | Usually only to perform the contract |
| How long it lasts | A fixed term, commonly two to five years, often longer for trade secrets | For the contract, plus a survival period after it ends |
| Liability | Usually not capped | Subject to the contract’s limitation of liability unless carved out |
| After the main contract is signed | Can be replaced by the contract’s entire agreement clause | Governs the relationship |
| Effort | A short separate document | No separate document |
When do I need a standalone NDA?
When you’re about to share specific, non-public information and there’s no contract yet: partnership or acquisition talks, an enterprise pilot before the paper is signed, or a vendor who needs to see your systems to quote. Most product demos and first investor pitches don’t need one. See do I need an NDA before a demo or investor pitch.
Does the confidentiality clause replace an earlier NDA?
It can. Many contracts include an entire agreement clause saying the contract is the whole agreement on its subject and replaces earlier discussions and agreements. If you signed an NDA during negotiations, the later contract should say what happens to it: either that the NDA continues for information shared before signing, or that the contract’s confidentiality terms now cover that information too. Without that, information disclosed during the sales process can end up in a gap.
Why does the liability cap matter?
Because a breach of confidence can cost more than the contract is worth. Many SaaS and services agreements cap each side’s liability at the fees paid. If the confidentiality clause isn’t carved out of the cap, the remedy for leaking source code or customer data may be limited to that amount. Standalone NDAs usually have no cap and often say the discloser can seek an injunction. See limitation of liability clauses.
What about employees and contractors?
Use the confidentiality clause in their agreement rather than a separate NDA, alongside an IP assignment. For Ontario employees, don’t let it drift into a non-compete: section 67.2 of the Employment Standards Act, 2000 prohibits non-compete agreements with employees, including one inside another agreement, with narrow exceptions for executives and the sale of a business. See does my company own what its employees create and who owns code a contractor writes.
Is either one enforceable?
Generally yes, if it’s clear and protects information that is actually confidential. Courts are wary of definitions so broad they cover public information. Separately, section 391 of the Criminal Code makes it an offence to knowingly obtain or communicate a trade secret by deceit, falsehood or other fraudulent means. See is an NDA enforceable in Canada and how to protect trade secrets.
When to choose which
- A standalone NDA: before there’s a deal, when you’re sharing something that would hurt if misused.
- A confidentiality clause: in every customer, vendor, employment and contractor agreement, so the protection continues for as long as the relationship does.
- Both, in sequence: an NDA for the negotiation, then a contract that either preserves the NDA or expressly takes over the information shared under it.
What to do next
We prepare NDAs and review confidentiality and liability terms in contracts you’re asked to sign as a contract review, at fixed fees on our fees page.
This guide is general information about Ontario and Canadian law, not legal advice for your situation. To talk through what to sign before you share something, book a free 15-minute consult.