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Contract review guide

NDA Review: What to Check Before Signing

A plain-language guide to understanding non-disclosure agreements, confidentiality clauses, risks, and common mistakes before you sign.

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What is an NDA?

An NDA, or non-disclosure agreement, is a contract that limits how confidential information can be used or shared. Companies often use NDAs before sharing business ideas, client lists, financial information, product plans, technical documents, or other sensitive material.

What to review before signing an NDA

Check what information is considered confidential.
Review how long the confidentiality obligation lasts.
Look for limits on who you can share information with.
Check whether the NDA is mutual or one-sided.
Review penalties, damages, or legal costs if the NDA is breached.
Make sure the NDA does not restrict normal future work too broadly.

Risks to watch for

A very broad definition of confidential information can make almost everything covered.
An unlimited duration may create obligations that never clearly end.
One-sided obligations may protect only the other party.
Heavy penalties may be disproportionate to the actual harm.
Restrictions may overlap with non-compete or non-solicitation language.

Common mistakes

  • Signing without checking how long the NDA lasts.
  • Assuming every NDA is standard and harmless.
  • Ignoring clauses about legal fees and damages.
  • Not checking whether information already known or public is excluded.
  • Sharing the document internally before checking who is allowed to see it.

Real-world example

A freelancer receives an NDA before discussing a project with a startup. The NDA says all information shared during any conversation is confidential forever. Before signing, the freelancer should check whether the duration can be limited, whether publicly available information is excluded, and whether the NDA could prevent them from working with similar clients later.

FAQ

Is an NDA legally binding?

In many cases, yes. An NDA can create legal obligations if it is properly written and signed. The exact effect depends on the jurisdiction and the wording of the agreement.

Should an NDA last forever?

Not always. Some confidential information may justify long protection, but many NDAs use a fixed period such as two, three, or five years. Unlimited terms should be reviewed carefully.

What should be excluded from confidentiality?

Common exclusions include information already known, information that becomes public, information received from another lawful source, or information independently developed.

Can an NDA stop me from working with other clients?

An NDA should mainly protect confidential information. If it also limits who you can work with, it may include non-compete or non-solicitation language that deserves extra review.

Can Lawyerless review my NDA?

Yes. You can paste or upload your NDA and get a plain-language explanation of key terms, risks, and clauses worth reviewing.