Use a mutual NDA when both parties share confidential information (partnerships, M&A, joint ventures). Use a one-way NDA when only one party discloses. If both parties are sharing information but you have been sent a one-sided NDA to sign, counter with a balanced mutual or one-way (receiving) template.
The first decision when you need an NDA is whether it should be mutual or one-way. It is a simple choice once you know which way the confidential information is flowing, but getting it wrong leaves someone exposed. Here is the difference and how to choose.
NDASafe is a document preparation service, not a law firm. Our templates are legally reviewed against applicable UK law at the point of release, but every situation is different. Where significant value, unusual risk or a cross-border element is involved, take independent legal advice before you sign.
The difference in one line
A mutual (bilateral) NDA protects confidential information shared in both directions. A one-way (unilateral) NDA protects information shared in one direction only, from the discloser to the recipient.
| Mutual NDA | One-way NDA | |
|---|---|---|
| Who discloses | Both parties | One party only |
| Who is bound | Both parties | The recipient only |
| Typical use | Partnership, joint venture, M&A talks | Pitch, sales demo, vendor assessment |
| Length / complexity | Slightly longer (obligations run both ways) | Shorter, simpler |
| Risk if you pick wrong | Over-broad but harmless | One side left unprotected |
When to use a mutual NDA
Use a mutual NDA whenever both sides will reveal something they want protected. The classic cases are a partnership or joint-venture discussion, early acquisition talks where both companies open their books, or two businesses exploring integration. Because the obligations are symmetric, mutual NDAs are also easier to agree, neither side feels it is signing away more than the other.
See the mutual NDA template.
When to use a one-way NDA
Use a one-way NDA when only you are sharing. If you are pitching your product, demonstrating software, or handing over a pricing model and the other party is not disclosing anything of their own, a one-way agreement is the cleaner, tighter fit.
There are two sides to a one-way NDA, and NDASafe provides a template for each:
- One-way (disclosing party), you are the one sharing, and you want your information protected. View template.
- One-way (receiving party), you have been asked to sign someone else's one-sided NDA and want to respond with a balanced UK-law version. View template.
What to do when you're handed a one-sided NDA
It is common to be sent an NDA drafted entirely in the other party's favour. You do not have to sign it as-is. If you will also be disclosing anything sensitive, the agreement should run both ways, so propose a mutual NDA, or counter with a balanced one-way (receiving) template. Most reasonable counterparties accept a fair, UK-law version. If they insist on terms that look unusually wide, that is the moment to take independent advice.
The NDASafe bundle (£79) includes the mutual NDA and both one-way templates, so you have the right shape ready whichever way the conversation goes.