What to Include in an NDA (Non-Disclosure Agreement)
Before you share a business idea with an investor, hand sensitive data to a freelancer, or explore a partnership, a non-disclosure agreement (NDA) helps keep that information private. It's one of the most common business documents — and one of the most misunderstood.
This guide explains, in plain English, what an NDA is, the clauses it should contain, and when you actually need one. It is general information, not legal advice.
What is an NDA?
A non-disclosure agreement is a contract in which one or both parties agree to keep certain shared information confidential. If only one side is sharing secrets, it's a one-way (unilateral) NDA. If both sides are exchanging sensitive information — common in partnership talks — it's a mutual NDA.
The goal is simple: to let people share information they need to do business, while making clear that the information can't be leaked, reused, or handed to competitors.
The key clauses every NDA needs
A solid NDA defines a few things clearly. It names the parties and the date. It defines what counts as 'Confidential Information' — often written broadly to cover business plans, customer data, financials, technical details and trade secrets. It sets out the receiving party's obligations: to keep the information secret, not to disclose it to third parties, and to use it only for the agreed purpose.
It also lists exclusions — information that isn't covered, such as anything already public, independently developed, or lawfully obtained elsewhere. Finally, it states the term (how long confidentiality lasts) and the governing law (which jurisdiction's rules apply).
When do you need an NDA?
Reach for an NDA any time you're about to reveal something you wouldn't want a competitor to see. Typical moments include pitching an idea to investors, onboarding a contractor or agency, discussing a merger or partnership, or sharing source code, designs or customer lists.
You don't need one for information that's already public or trivial. And remember that an NDA is only as useful as your willingness to enforce it — so keep it reasonable and specific rather than absurdly broad.
Is an NDA legally binding?
A properly written, signed NDA is generally enforceable, but enforceability depends on your jurisdiction, how it's signed, and whether its terms are reasonable. Courts tend to look unfavourably on NDAs that are impossibly broad or last forever.
For everyday situations, a standard template does the job. For high-stakes agreements — protecting valuable intellectual property or anything you might genuinely litigate over — have a qualified attorney review or tailor the document first.
Create an NDA for free
Our free NDA generator lets you produce a standard mutual non-disclosure agreement in minutes. Enter the parties, the effective date, the confidentiality term and the governing state, and download a clean PDF ready to sign.
Everything is assembled in your browser, so the names and terms you enter are never uploaded anywhere. It's a fast, private way to get a solid starting document — just treat it as a template rather than a substitute for legal advice on important matters.