NDA term / duration clause
A term / duration clause in an NDA sets the timeline for confidentiality duties. It should say when those duties start, when the NDA ends, and which duties continue after the NDA ends.
If the timing is missing, vague, or one-sided, people can end up with surprise obligations, weak protection, or arguments about what still applies after the NDA ends. This page explains what to look for and what to ask for.
Quick answer
A term / duration clause sets the timeline for confidentiality duties. In a strong NDA, it clearly says when the NDA starts, when it ends, and which duties continue after the NDA ends.
If the timing is missing, unclear, or one-sided, either side can end up with surprise obligations, weak protection, or arguments about whether information may still be used or shared after the NDA ends.
Common red flags include:
- no clear start date
- no clear end date
- no clear statement about which duties continue after the NDA ends
- confidentiality protection that ends too soon
- wording that allows continued use of confidential information after the NDA ends
- automatic renewal without a simple way to end the NDA
- a long notice period to end the NDA
- no clear rule that trade secrets stay protected as long as they remain secret
Want help checking the actual wording?
Vesk reviews the actual term / duration language in customer-drafted NDAs and helps you spot unclear timing, overlong survival periods, one-sided renewal rules, and weak trade-secret survival wording.
Glossary (quick definitions)
Definition:
The term / duration clause sets the timing rules in an NDA: when confidentiality duties begin, how long the NDA lasts, and which duties continue after it ends.
Why it matters:
- It tells both sides when the confidentiality rules start and stop.
- It helps prevent surprise extensions and arguments about what still applies after the NDA ends.
- If the wording is vague or incomplete, protection may end too soon or duties may last longer than expected.
Common red flags:
- The NDA is unclear about when confidentiality duties begin.
- The NDA does not clearly say when it ends.
- The NDA does not clearly say which duties continue after it ends.
- The confidentiality period ends too soon.
- The NDA renews automatically without a simple way to end it.
- The NDA does not clearly protect trade secrets for as long as they remain secret.
What a reasonable clause looks like:
- The start date is clear, such as signing or first disclosure.
- The NDA clearly says when it ends.
- The NDA clearly says which duties continue after it ends, and for how long.
- Any renewal or termination process is simple and clear.
- “Forever” protection is limited to true trade secrets, not all confidential information.
What to look for
Below are common problems people miss and what to look for.
| Red flag | Why it's risky | What to ask for |
|---|---|---|
| The NDA does not clearly say when confidentiality duties start. | Each side may argue for the start date that helps it most. | Make the start date clear, such as the signing date or first disclosure. |
| The NDA does not clearly say when it ends, or it ends through a confusing process. | People may stay stuck with duties longer than expected or miss when the NDA actually ends. | Set a clear end date or agreement term and include a simple way for either side to end the NDA. |
| The NDA does not clearly say which duties continue after it ends, or for how long. | One side may think the duties last forever while the other thinks they already ended. | Say exactly which duties continue after the NDA ends and how long they continue. |
| The NDA allows continued use of confidential information after the NDA ends. | Information may keep being used even after the relationship is over. | Say that use of confidential information must stop when the NDA ends, except for narrow and clearly stated exceptions if truly needed. |
| The NDA renews automatically unless someone gives notice far in advance. | Small teams can miss notice deadlines and get locked into a longer term than they meant to accept. | Remove auto-renewal or make ending the NDA simple with a short notice period. |
| The NDA treats all confidential information as protected forever, or does not clearly protect trade secrets for as long as they remain secret. | The clause can become too broad, or it can fail to protect true trade secrets the right way. | Use a clear time limit for most confidential information and limit open-ended protection to true trade secrets. |
Why not use ChatGPT or an AI contract assistant?
Chatbots and lighter-weight AI tools can help you review a contract faster, but they usually stop short of giving you a negotiation-ready output. For founders and business operators, the hardest part often comes after the review step: turning suggested changes into a real redline, explaining those edits clearly, and sending them back with confidence. Vesk is designed to take you further through that workflow for supported contract types.
Chatbots and AI contract assistants
- Better if you want a flexible, lower-cost starting point
- More sensitive to prompt wording and less consistent across repeated runs
- Often produce suggestions or summaries rather than a sendable package
- You still have to redline the Word document and defend the changes yourself
Vesk
- Better if you want an end-to-end NDA review, redlining, and negotiation workflow
- Designed for more consistent NDA review across repeated runs
- Benchmarks against industry-standard model agreements to help catch what matters
- Delivers a secure redline package with Word files, a negotiation brief, and a deal room
Calibrated against industry-standard agreements including Common Paper and Bonterms. Not endorsed by or affiliated with either.
What’s included in a secure redline package
Reviewing a contract is only part of the job. You still need a clear, professional way to send changes back and explain them, especially when the other side has procurement or in-house counsel. That is often the most stressful part for founders and business operators without legal training. A secure redline package is designed to make that step more organized, more defensible, and easier to handle with confidence. A secure redline package includes:
A negotiation brief that explains and supports the requested edits
A downloadable redlined Word .DOCX file with Track Changes on
A downloadable clean Word .DOCX file with the requested edits accepted
A secure deal room link you can review yourself or share with the counterparty
Trust & privacy
Vesk is a software tool, not a law firm. Vesk does not provide legal advice.
Vesk does not use your contracts or data to train its AI models. Vesk retains documents for no more than 30 days and deletes them earlier on request.
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Last updated: 2026-03-20