A non disclosure agreement is the first document in most business sales and it is widely misunderstood as protection. It is better understood as a staging device: something that marks the point at which a conversation becomes serious enough to share specifics, and that gives you a remedy if somebody behaves badly. What it does not do is prevent the behaviour, and sellers who treat it as a shield rather than as a gate share too much too early.
What it is actually for
It creates a written record that the recipient knows the information is confidential and has agreed limits on using it. That matters commercially and it matters if there is ever a dispute. It also serves a practical filtering role: somebody unwilling to sign one is telling you something useful about how serious they are, before you have shared anything.
What it cannot do
It cannot make information un-known. If a competitor learns your customer concentration and the deal does not happen, they know it, and a remedy after the fact is a poor substitute. That is why staging matters more than the document: a general description first, specifics after signature, and the genuinely sensitive material only once there are agreed terms and a buyer with something to lose.
The seller's practical discipline
Decide the stages before anybody is keen, keep a record of who received what and when, and share the most sensitive items last. That record is also what lets you answer, months later, exactly what a particular party saw. What the agreement itself should contain, how long it should run and what remedies it should carry are questions for your own solicitor, and this site does not draft or advise on one. One more thing follows from treating it as a gate. Because the agreement marks a stage rather than protecting a secret, the useful question before each disclosure is not whether they signed but whether this particular item needs to move now, and the answer for the most sensitive material is usually not yet.
Questions people ask about business sale non disclosure agreement
Should every enquiry sign one?
Before anything specific is shared, most sellers require it. Before a general description, usually not, because requiring it too early loses conversations that were worth having.
Are template agreements safe to use?
That is a question for your solicitor. What this site can say is that the staging discipline around the document does more practical protecting than the wording inside it.
What should I record?
Who signed, when, and what they were subsequently given. That record answers the only question anybody asks afterwards, and reconstructing it from an inbox is close to impossible.