Signing & E-Signature

Signing an NDA: What You Should Know Before You Sign

Before signing a non-disclosure agreement, check what counts as confidential, how long the obligation lasts and what a breach triggers. A practical checklist for signing an NDA with confidence.

TD
June 14, 2026
5 min read
More on this topic

Before signing a non-disclosure agreement, check what counts as confidential, how long the obligation lasts and what a breach triggers. A practical checklist for signing an NDA with confidence.

What is an NDA?

A non-disclosure agreement (NDA), also known as a confidentiality agreement, is a legally binding contract that obliges a company or person not to disclose certain information classified as confidential. For a foundational explanation of what the abbreviation means and how a confidentiality agreement works, see the guide What is an NDA?. Typically this is sensitive or valuable information that is critical to the operation, competitive advantage or value of a business, such as technical details, business strategies, customer lists, financial information or research and development results.

Why are NDAs important?

The importance of NDAs for companies and business relationships is far-reaching. In business, NDAs are often used to minimize the potential for unfair competition or misuse of information. They are an important tool for protecting the value and security of intellectual property, trade secrets and other sensitive information.

First, NDAs are critical for safeguarding proprietary knowledge in industries that depend heavily on innovation. Companies invest significant time and resources in developing distinctive technologies, product designs or manufacturing processes. By signing an NDA before sharing such confidential information with potential partners or investors, they can prevent the theft or unauthorized disclosure of valuable intellectual property.

NDAs also serve as a safeguard during negotiations between parties entering into contractual arrangements. Whether in mergers and acquisitions or in collaborative partnerships, such transactions often involve the exchange of sensitive business data. With an NDA in place, both parties can speak freely about relevant details without fear of betrayal or misuse by competitors.

Finally, NDAs support open communication by giving employees who routinely handle confidential company information a sense of security. This helps build a culture of trust in which people can share ideas and strategies without worrying about confidentiality breaches.

The key aspects to consider when signing an NDA

Before you sign a non-disclosure agreement, several important points deserve attention to protect your interests as well as possible.

1. A clear definition of confidential information

The definition of confidential information is a decisive aspect when signing an NDA. It is essential to define clearly what counts as confidential, because this supports legal protection and ensures sensitive data is not shared.

Defining confidential information sets the boundaries of what each party must keep secret. By specifying the types of information covered by the NDA, both sides can agree on what is to remain confidential, including trade secrets, proprietary technology, customer lists, financial records or other valuable knowledge the disclosing party considers sensitive. Watch out for the opposite extreme too: a definition that simply covers "all information" is often unenforceable, because a court will not accept that genuinely everything is confidential.

2. The obligations of the receiving party

This part of the NDA sets out what the receiving party may and may not do with the confidential information. For example, they may be required to use the information only for specific purposes, not to pass it on to third parties, and to take appropriate measures to protect it.

Confidentiality is one of the most important obligations in an NDA: the receiving party commits not to disclose the disclosing party's confidential information without express permission. NDAs also frequently restrict the use of confidential information, clarifying that it may be used only for the specific purposes defined in the agreement and not beyond them. Check whether these obligations are reasonable and, if you also contribute information, whether they apply to both sides.

3. Duration of the obligation

The duration of confidentiality obligations is a decisive aspect to consider. It plays an important role in protecting sensitive information exchanged between the parties, and the right length often depends on the nature of the information disclosed and its potential impact.

One common approach is an indefinite term: the obligation remains in force without a fixed end date, which lets companies retain control over their confidential information for as long as it stays sensitive, typical for genuine trade secrets. Alternatively, the parties can agree a fixed term, after which neither side is bound by the NDA. Three to five years is common; the right length depends on industry practice, the parties' needs and how quickly the information loses relevance.

4. Remedies in the event of a breach

An NDA should set out what rights the disclosing party has if the receiving party fails to meet its obligations. This can include the right to seek an injunction, to claim damages, or to take other legal action.

A common remedy for NDA breaches is injunctive relief: obtaining a court order that prohibits the breaching party from further disclosing or using confidential information. This type of remedy aims to stop ongoing harm and ensure sensitive data stays protected while longer-term solutions are pursued.

In addition to injunctive relief, parties can claim damages for losses caused by the unauthorized disclosure or use of confidential information. Calculating damages requires proof of the harm suffered, often through expert evidence and financial analysis. Some NDAs also include a fixed liquidated-damages amount, which is enforceable only if it is a genuine pre-estimate of likely loss rather than a penalty, so check that any fixed figure is reasonable before you sign.

Ready for the next step?

Book a demo with our team and see top.legal in action

More on the topic