How Long Does An NDA Last? Negotiating A Duration (2026)

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Sarah Edwards

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Reviewed By Adam Ramirez, J.D.

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Summary

  • There is no single answer to, “How long does an NDA last?”
  • An NDA can be perpetual under some circumstances
  • Many states require NDAs to have a reasonable duration

Many parties negotiating a non-disclosure agreement (NDA) wonder, “How long does an NDA last?” However, the answer depends on the purpose and subject matter of the agreement.

What Is a Non-Disclosure Agreement?

An NDA restricts a party’s disclosure of protected information. Businesses often use them to protect trade secrets, and you can also encounter them in certain types of settlements.

Typical Duration of Non-Disclosure Agreements

There is no standard duration for non-disclosure agreements. Instead, the duration often depends on the subject matter. For example, a product liability lawsuit settlement might block the disclosure of its terms forever. This prevents the victim from telling others injured by the product how much they received.

Factors That Influence How Long an NDA Lasts

The release of certain information might be so damaging that the NDA’s term is perpetual. However, other information might not require perpetual protection. For example, financial information might become public in the company’s next shareholder meeting. Any NDA covering that information might only last a few months to a year.

Some states require that NDAs that restrain trade or commerce must have a reasonable duration. For instance, a Florida non-disclosure agreement is subject to Florida Statute section 542.335 that prohibits “overlong” NDAs. Under this statute, a judge can ignore the agreement’s duration and grant only the relief necessary to carry out its purposes.

Another factor that can affect the duration of an NDA is the breadth of the protected information. An NDA for a specific product might be longer than an NDA covering all information learned during a negotiation.

Can an NDA Last Indefinitely?

An NDA can last indefinitely, but it would need to meet certain requirements to be valid. For example, a New York non-disclosure agreement that restrains trade must be “reasonable in time.” NDAs for other reasons, such as the settlement of a lawsuit, can last forever.

Renewing, Extending and Updating NDAs After Expiration

A possible solution to avoiding an indefinite NDA is to impose a specific term and allow renewals or extensions. For example, a joint venture agreement might restrict disclosures for two years after the venture ends. At that time, the parties might agree to extend or renew the post-venture NDA. These options ensure the proprietary information they developed together remains confidential.

If the terms need to be updated, the parties can either amend the original NDA or execute a new NDA. In either case, all parties must agree to the changes. If only one party wants the changes, there is no new agreement, and the original agreement will apply.

Need Help Drafting or Understanding an NDA?

ConsumerShield provides tools and educational materials to help people understand and address their legal issues, including those related to NDAs. Explore our collection of online resources today.

Frequently Asked Questions

  • The duration of post-termination restrictions depends on the state. Many states allow employers to restrict their workers from disclosing proprietary information forever.

  • Any contract should have clear terms. An NDA without a specific duration may be invalid due to vagueness.

More About What Is An NDA?

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