The Confidentiality Duration Clause Explained (2026)

A confidentiality duration clause sets how long the duty to keep information secret lasts. It answers a question every NDA and confidentiality clause has to answer: when does the obligation end, and does it end at all for the most sensitive information? Getting the period wrong is one of the quiet ways confidentiality protection is lost. This page explains what the clause does, how it differs from the term of the contract, how to choose a period, sample wording, the special case of trade secrets, and the points that are negotiated. It is general information, not legal advice. ## What a confidentiality duration clause does Confidentiality has two different time questions, and people confuse them: 1. How long can information still be disclosed to the receiver? This is the disclosure period, often tied to the life of the contract or the deal. 2. How long must the receiver keep disclosed information secret? This is the confidentiality duration, or survival period. It usually runs on after the contract ends. The duration clause deals with the second question. It defines the point at which the receiving party is free to stop treating the information as confidential. A short period protects the receiver, who no longer has to police the information. A long or indefinite period protects the discloser, whose secrets stay protected. ## Fixed period, or indefinite for trade secrets There are two common approaches, and the best clauses use both. ### A fixed period The obligation lasts for a defined number of years after disclosure or after termination, for example 3 or 5 years. This is clean and easy to administer. It suits ordinary commercial information that loses value over time, such as pricing, plans and forecasts. ### Indefinite for trade secrets Some information does not expire. A formula, a source code secret, a customer database, or a manufacturing process can retain its value indefinitely, and the law protects a trade secret only while it stays secret. A fixed period that releases such information after a few years can destroy its trade secret status. The widely used solution is a two tier clause: confidential information generally is protected for a fixed period, but information that qualifies as a trade secret is protected for as long as it remains a trade secret under applicable law. ## Why it matters - For the discloser, too short a period means genuinely valuable information falls out of protection while it still matters, and for trade secrets a fixed end date can forfeit protection entirely.

• For the receiver, an indefinite blanket obligation over all information is a heavy and impractical burden, and may be resisted or ignored, which weakens the whole clause.
• For both, a mismatch between the duration and the real sensitivity of the information is a common source of dispute and of unenforceable or ineffective clauses. ## A sample confidentiality duration clause The wording below is illustrative. Adapt it to your deal and jurisdiction and have it reviewed before use. > Duration of Confidentiality. The obligations of confidentiality in this Agreement shall apply during the Term and shall continue for a period of [5] years after the date of termination or expiry of this Agreement. Notwithstanding the foregoing, with respect to any Confidential Information that constitutes a trade secret under applicable law, the obligations of confidentiality shall continue for so long as such information remains a trade secret. These obligations shall not apply to information that: (a) is or becomes public through no breach of this Agreement; (b) was lawfully known to the receiving party before disclosure; (c) is lawfully received from a third party without restriction; or (d) is independently developed without use of the Confidential Information. Note the fixed period, the trade secret carve out that runs indefinitely, and the standard exceptions that release information from the duty regardless of the period. ## How to choose the period 1. Match the shelf life of the information. Information that dates quickly, such as a quarterly forecast, needs a shorter period than a long lived secret.

2. Separate ordinary confidential information from trade secrets. Use a fixed period for the first and an indefinite period for the second.
3. Consider the relationship. An NDA for a one off evaluation may use a shorter period than a long term supply or technology agreement.
4. Watch the start point. Decide whether the clock runs from the date of disclosure of each item or from termination of the contract. Running from termination is simpler to administer.
5. Check regulatory and privacy overlaps. Personal data and regulated information may carry their own retention and protection rules that outlast the clause.
6. Keep the exceptions. The standard carve outs for public, prior, third party and independently developed information should apply throughout, so the duration never protects information that has stopped being secret anyway. ## How it differs by jurisdiction The contractual idea is the same worldwide, but trade secret law shapes the trade secret tier, so verify locally: - United States. Trade secrets are protected under the Uniform Trade Secrets Act as adopted by states and the federal Defend Trade Secrets Act, for as long as the information stays secret and reasonable steps are taken to protect it. A fixed expiry on trade secret obligations can undermine protection.

• European Union and United Kingdom. Trade secret protection follows the EU Trade Secrets Directive as implemented, and equivalent UK rules, again tied to the information remaining secret and protected by reasonable measures.
• India. There is no standalone trade secrets statute. Protection rests on contract and on equitable duties of confidence, which makes a well drafted duration clause especially important.
• Singapore and Australia. Protection comes mainly from the law of confidence and contract, with similar reliance on the information staying secret. Across all of these, an indefinite obligation for genuine trade secrets, tied to the information remaining secret, aligns the contract with how the law actually protects such information. Confirm the position in your governing law. ## Drafting, reviewing and tracking the period in one place A confidentiality duration is set once but matters for years. Across many NDAs and agreements, different documents carry different periods and different start points, and someone has to know when each obligation ends, which ones run indefinitely, and whether a clause with a short fixed period is quietly putting a trade secret at risk. In a portfolio, those dates and distinctions are easy to lose. This is the work an AI contract workspace is built to hold together: drafting the duration clause with the right two tier structure from a tuned template, flagging a fixed period that may endanger a trade secret on review, editing the period in plain language, and tracking when each confidentiality obligation ends on a live timeline. Adira is one such workspace, built on frontier AI and tuned to how a company contracts, keeping drafting, review, clause editing and tracking in one place rather than across scattered files. Confidentiality that outlives the memory of the clause is the real test, and that is a process problem.