Guide
Do You Need an NDA? A Quick Guide
You need an NDA whenever you're about to share information that would genuinely hurt you if it became public or landed with a competitor — before that conversation happens, not after. If what you're about to discuss is already public, easily guessed, or low-stakes, an NDA is usually just friction.
When you actually need one
- Sharing financials, a business plan, or a cap table with a prospective investor or acquirer.
- Early partnership or vendor discussions where you'll disclose how your product or process actually works.
- Bringing on a contractor who'll need access to internal systems, source code, or customer data to do the work.
- Any conversation where the other party walking away with the details and using them themselves would cost you something real.
When it's probably unnecessary
A routine sales conversation, information that's already public or easy to reconstruct independently, or a short, low-value exchange where a signed NDA would slow things down more than it protects you. An NDA that never gets enforced (because nothing worth enforcing was ever actually disclosed) is just paperwork — the goal is matching the protection to the actual exposure, not defaulting to "always."
Mutual vs. one-way
A unilateral NDA protects one party's disclosures — used when only one side is actually sharing sensitive information (e.g., a company briefing a job candidate). A mutual NDA protects both sides, which is the more accurate document for most early-stage business conversations: partnership talks, vendor evaluations, and joint proposals usually involve both parties revealing something the other shouldn't repeat.
What a good NDA actually needs
- A real definition of "confidential information." Vague enough to cover what matters, specific enough to be enforceable.
- Exclusions. Information that's already public, already known to the receiving party, independently developed, or rightfully obtained elsewhere shouldn't be covered — every standard NDA carves these out.
- Obligations. Use the information only for the stated purpose, protect it with reasonable care, don't disclose it to third parties without consent.
- A term. Most run 2–5 years from signing; trade secrets sometimes get longer or indefinite protection. An NDA with no end date at all can be harder to enforce as written.
- No obligation to actually do business together. An NDA protects information exchanged while exploring a deal — it doesn't commit either side to the deal itself.
General information, not legal advice. An NDA covering something high-stakes (a significant investment, an acquisition, real trade secrets) is worth a lawyer's review before it goes out.