NDAs in Plain English: 5 Clauses to Watch Before You Sign

A non-disclosure agreement (NDA) is supposed to protect confidential information. In practice, many NDAs also touch ownership of work, how long silence lasts, and what you can still use from your own skill and experience.

You don’t need to reject every NDA. You do need to notice the parts that go beyond “don’t share our secrets.”

Here are five clauses worth reading carefully before you sign.

1. What counts as “confidential”

Some NDAs define confidential information narrowly: specific documents, code, customer lists, or trade secrets marked as confidential.

Others define it so broadly that almost anything you see or hear could count — including information that is public, already known to you, or independently developed.

Why it matters: An over-broad definition makes it easier to claim you breached the NDA later, even when you acted reasonably.

What to watch for: Definitions that include “all information related to the business” with weak exceptions for public or pre-existing knowledge.

2. How long the obligation lasts

Confidentiality doesn’t always end when the project ends. Many NDAs continue for a set number of years — or, for true trade secrets, as long as the information stays secret.

That’s normal for real secrets. It’s harder to justify when ordinary business information is locked down for a very long time with no clear limit.

Why it matters: A long or indefinite term can follow you into the next client relationship.

What to watch for: “Perpetual” obligations applied to ordinary information, not only trade secrets.

3. Who owns the work (and improvements)

NDAs are about secrecy. Some also slip in ownership language: anything you create, improve, or suggest in connection with the engagement belongs to the other party.

That can be appropriate for work product you were hired to deliver. It becomes risky when it reaches your pre-existing tools, templates, methods, or general know-how.

Why it matters: You can accidentally give away rights to things you brought with you or reuse in your business.

What to watch for: Assignment or “work made for hire” language inside an NDA that goes beyond the confidential information itself.

4. Residuals — what you’re allowed to keep using

“Residuals” clauses deal with what stays in your unaided memory: general skills, know-how, and ideas you retain after the project.

Some NDAs allow residual use. Others try to restrict even what you remember, which is hard to apply fairly and can conflict with how professionals actually work.

Why it matters: Freelancers and consultants build careers on cumulative skill. A harsh residuals stance can create fear around normal future work.

What to watch for: Language that treats any remembered idea as off-limits, without a practical residual-use allowance.

5. One-sided duties and harsh remedies

Many NDAs are mutual. Some are one-way: only you have duties; the company has few or none.

Also watch remedies: automatic injunctions, broad liability, or terms that make any dispute expensive for you to contest. Strong remedies can be legitimate for real secrets — they should still match the risk.

Why it matters: A one-sided NDA with aggressive remedies shifts leverage heavily before any real dispute exists.

What to watch for: Only one party bound; extreme penalty-style language; no practical exceptions.

A simple before-you-sign checklist

• Is “confidential” defined clearly, with fair exceptions?
• How long do obligations last — and for what kind of information?
• Does the NDA also claim ownership of your work or tools?
• Can you still use general skill and residual knowledge?
• Are duties mutual, and are remedies proportionate?

NDAs are part of doing business. Reading these five areas doesn’t replace a lawyer on a high-stakes deal — it does help you notice when a “standard NDA” is doing more than protecting secrets.