How to write an NDA

Seven decisions turn a template into an agreement that fits your deal. Make them in this order.

1. Decide if you need one

An NDA helps when you must share something that would hurt if it leaked, and the other side has no existing duty of confidentiality (your lawyer and accountant already do).

2. Pick one-way or mutual

Follow the information. If it flows both ways, go mutual. Compare them.

3. Name the parties exactly

Use the full legal name of each company (“Acme Robotics, Inc.”, not “Acme”) and the state it’s organized in. For companies, name the person signing and their title, and make sure they are authorized to sign.

4. Write a narrow purpose

“Evaluating a manufacturing agreement for the Model 3 speaker” beats “business discussions.” The purpose limits what the recipient may do with your information.

5. Define the information and keep the exclusions

List the categories that matter in this deal, and cover unmarked or verbal disclosures with a “reasonable person” test. Keep the four standard exclusions: without them, the NDA looks overreaching.

6. Set the term and governing law

Choose a length that matches how long the information stays valuable, with a trade secret exception. Pick the law of a state or country you’re comfortable litigating in. How long NDAs last.

7. Check the legal limits, then sign

If the recipient is an employee or contractor in the US, include the DTSA immunity notice and don’t try to restrict reporting to agencies. See the limits. Then sign, by hand or electronically, and keep a copy with a record of what you shared.

Checklist

  • Right template (one-way / mutual / employee / contractor / investor / interview)
  • Exact legal names, entity types, signatories
  • Specific purpose
  • Definition with “reasonable person” coverage + four exclusions
  • Need-to-know sharing and reasonable care
  • Term, survival, trade secret exception
  • Return or destruction on request
  • Protected-rights and DTSA language
  • Governing law, signatures, dates

The generator covers every item on this list.

A template, not legal advice. NDAForge generates standard-form documents from your answers. It is not a law firm and doesn’t review your situation. Laws differ by state and country; for high-value deals, employment matters or anything unusual, have a licensed attorney review the agreement before anyone signs.

Frequently asked questions

Can I write my own NDA?

Yes. There’s no legal requirement that a lawyer draft an NDA. Starting from a complete template and adapting it carefully is how many small businesses do it; for high-stakes deals, have a lawyer review the result.

Does an NDA need to be notarized or witnessed?

Generally no. Signatures by both parties are enough, and electronic signatures are generally valid in the US under the federal E-SIGN Act.

What makes an NDA invalid?

Common problems are a definition so broad it covers public information, no clear purpose, the wrong legal entity named, missing consideration, and clauses that try to block legally protected disclosures.