How Long Does an NDA Last? Understanding Term and Survival Clauses
What This Clause Does
Every NDA should have a defined term (the period during which information may be shared) and a survival period defining how long confidentiality obligations continue after the agreement ends. Most business NDAs run 1-3 years, with obligations surviving for the same or a longer period.
Watching out for perpetual obligations is important. While trade secrets can legitimately be protected indefinitely (they remain secret by definition), ordinary business information should have a reasonable expiry date. An NDA that never expires can be legally unenforceable in some jurisdictions and practically difficult to comply with.
Example Clause Pattern
"This Agreement shall remain in effect for a period of [2] years from the Effective Date ('Term'). Receiving Party's obligations with respect to Confidential Information disclosed during the Term shall survive for [2] years following expiration or termination of this Agreement."
What to Watch
- Confidentiality obligations survive in perpetuity with no end date
- Agreement auto-renews with no notice requirement
- Trade secrets and ordinary confidential information subject to the same unlimited term
- No mechanism to confirm what information falls within the time-limited obligations
What to Negotiate
- Separate trade secret protection (unlimited term acceptable) from general confidential information (cap at 2–3 years) — they should not be subject to the same indefinite restrictions
- Match the agreement term and the survival period proportionally — if the agreement lasts 2 years, obligations surviving for 10 years is disproportionate
- Add a process for documenting what information was exchanged and when, so both parties can track what remains subject to the agreement as time passes
- Negotiate an automatic termination right if the underlying business relationship ends, rather than being locked into the fixed term regardless of circumstances
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Found in These Contracts
This clause commonly appears in the following contract types:
Frequently Argued Questions
How long does an NDA typically last?
Most business NDAs last 1 to 3 years, with confidentiality obligations surviving for the same or a slightly longer period after the agreement ends. Perpetual NDAs are common for trade secrets, which are legally protected indefinitely anyway. For general business information, a 2–3 year term is standard. Courts are unlikely to enforce indefinite restrictions on non-trade-secret information, particularly where the information has become stale or publicly available.
What is the difference between the agreement term and the survival period?
The agreement term is how long the NDA is active — the period during which the parties may exchange confidential information. The survival period is how long confidentiality obligations continue after the agreement ends. A well-drafted NDA distinguishes both clearly: for example, the agreement might last 2 years, with obligations surviving for 2 additional years, for a total confidentiality window of 4 years. If only one duration is specified, it usually refers to both.
Can an NDA last forever?
Perpetual NDAs are legally valid for trade secrets, which remain protectable as long as they stay secret. For ordinary confidential business information, courts in many jurisdictions are skeptical of perpetual obligations and may decline to enforce them after a reasonable period has passed. Even perpetual NDAs become difficult to enforce over time as information becomes outdated or publicly available. If an NDA has no expiry, negotiate a time-limited term for general information while accepting perpetual protection for genuine trade secrets only.
Negotiation Strategies
Separate trade secret protection (unlimited) from general confidential information (time-limited)
Add a calendar reminder for agreement expiry and a formal information return process
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