How Long Does an NDA Last?

The duration of a non-disclosure agreement depends on two factors: the active term of the agreement and the survival period for confidentiality obligations after the term ends. Understanding both is essential when creating or signing an NDA.

Active Term vs. Survival Period

An NDA has two distinct time components:

• Active term — the period during which parties may share confidential information under the agreement (e.g., "this agreement is effective for 2 years from the date of execution")
• Survival period — how long confidentiality obligations continue after the active term ends or the agreement is terminated (e.g., "obligations survive for 2 years after termination")

Both periods matter. The active term defines when information can be shared under the NDA. The survival period defines how long the receiving party must continue protecting that information.

Common NDA Durations

There is no single standard duration. Common timeframes include:

• 1–2 years — common for short-term projects, freelance engagements, or preliminary discussions
• 3–5 years — typical for ongoing business relationships, employment situations, or partnership explorations
• Indefinite — sometimes used for trade secrets, which can be protected as long as they remain secret

What Happens When an NDA Expires?

When the NDA term and survival period both expire:

• The receiving party is no longer legally obligated to keep the information confidential
• They are free to use or share the previously protected information
• However, information that qualifies as a trade secret may still be protected under separate trade secret laws

This is why choosing the right duration matters. Set a term that's long enough to protect your information but reasonable enough that the other party will agree to it.

Trade Secrets: A Special Case

Trade secrets (like proprietary formulas, algorithms, or customer databases) can be protected indefinitely — as long as the information remains genuinely secret and the owner takes reasonable steps to protect it. Many NDAs include language that trade secret obligations survive the agreement's termination without time limit.

How to Choose the Right Duration

Consider these factors:

• Type of information — trade secrets may need indefinite protection; project-specific data may only need 1-2 years
• Industry norms — some industries have standard expectations (e.g., tech often uses 2-3 years)
• Relationship type — employment NDAs often last longer than one-off project NDAs
• Negotiation leverage — longer terms may face more resistance from the other party

Customizing Duration with Vindato

When you create a non-disclosure agreement with Vindato, you choose both the agreement duration and the post-termination survival period. The generated NDA also includes a default provision that trade secret obligations survive indefinitely.

Disclaimer: This article is for educational purposes only and does not constitute legal advice. For legal advice specific to your situation, consult a qualified attorney.