Freelance NDAs: What They Are, Dangerous Clauses, and When to Negotiate

A client has just sent you an NDA before the first meeting. Or perhaps at the start of a project. You are not sure whether it is standard, whether it contains traps, or whether you should sign it as-is or negotiate something first.

In this guide I explain exactly what an NDA is, when it protects the freelancer and when it works against you, and which clauses you should always review before signing.

1. What an NDA is and what it actually does

An NDA (Non-Disclosure Agreement), or confidentiality agreement, is a contract in which one or both parties commit not to disclose information received during a professional relationship.

In theory, it protects whoever shares sensitive information. In practice, the specific wording determines whether it also protects you — or only the client.

Not all NDAs are the same, and not every NDA request has the same purpose. Understanding which type you are being asked to sign is the first step before deciding whether to sign or negotiate it.

2. The 3 types of NDA you will encounter as a freelancer

Mutual or bilateral NDA — the most balanced

Both parties are bound to maintain confidentiality. This is the fairest arrangement for the freelancer because it also protects your methodology, your processes, and any information you share with the client (quotes, strategies, contacts, and so on).

When you will see it: startups negotiating with multiple suppliers, projects where the freelancer contributes proprietary know-how, long-term collaborative relationships.

Unilateral NDA — read carefully before signing

Only the freelancer commits to staying silent. The client is free to talk about you, your work, and your relationship without any restriction. This is the most common type and, when well drafted, is perfectly acceptable. The problem arises when the definition of "confidential information" is so broad it effectively paralyses you.

Typical problematic clause: "Confidential information means any data, material, process, method, plan, technique, or commercial, technical, or financial information that the freelancer knows or may come to know in connection with the client or its business."

NDA as a control tool — warning sign

Some NDAs go well beyond confidentiality and include non-compete restrictions, rights assignments, or a prohibition on publicly mentioning the client at all. If the NDA runs to more than 3 pages before a project has even started, it deserves very careful reading.

Warning signs:

• Indefinite confidentiality periods.
• Disproportionate financial penalties.
• A prohibition on working with companies in the same sector, without compensation.

3. When it makes sense to sign (and when it does not)

The honest answer is: it almost always makes sense to sign if the NDA is well drafted. The NDA itself is not the problem. The problem is the abusive clauses that sometimes creep in.

Sign without concern

• Access to real business information: financial data, client lists, product strategy. The NDA protects both parties and is entirely reasonable.
• Projects in regulated sectors: healthcare, finance, legal. Confidentiality here is a legal obligation as well as a contractual one.

Negotiate before signing

• Very broad definition of "confidential": ask to narrow the definition to information expressly marked as such.
• Duration exceeding 3 years: for short projects, 5 or 10 years may be disproportionate.

Reject or request significant changes

• Non-compete provisions included: that is not confidentiality, it is a restriction on your activity. It should be separate, and it requires compensation.
• Uncapped penalties: unlimited damages for any breach, including unintentional ones. Demand a cap proportionate to the project value.

4. The dangerous clauses you must review

1. Unlimited definition of confidential information

A good definition is specific: information expressly marked as confidential, communicated in a professional context, and not already in the public domain. A poor definition covers "everything the freelancer may come to know about the client" — which could even include the client's name mentioned at a public event.

Ask for the definition to include these express exclusions:

• Information that was already public before the NDA was signed.
• Information obtained from a legitimate third party.
• Information developed independently.
• Information required to be disclosed by legal or judicial order.

2. Indefinite or excessive duration

A reasonable term for freelance projects is 1 to 3 years. Beyond that, the information typically loses its commercial value. Some NDAs include terms of 10 years or "for as long as the information remains confidential," which in practice means forever.

3. Obligation to return or destroy materials

This is common and reasonable, but the wording matters. If it includes "any copy on any medium," make sure you can retain backups of your own work or the communications needed to prove you fulfilled the contract.

4. Automatic penalties for breach

Problematic example: "Any breach of this agreement shall result in an immediate penalty of €20,000, regardless of the actual damage caused."

Reasonable alternative: penalties should be proportionate to actual, demonstrable harm. If the client insists on a fixed sum, it should be proportionate to the project value — not an arbitrary figure.

5. How to negotiate an NDA without losing the project

Most clients who send standard NDAs did not personally draft every clause: they use templates from their legal departments. That means there is far more room for negotiation than it might appear.

The key is not to reject the NDA outright, but to propose specific changes and explain why they are reasonable. A professional response that rarely causes friction sounds something like this:

"I am happy to keep X, Y, and Z confidential. What I need to adjust is the definition of confidential information so that it does not cover knowledge I already had before this project."

6. Checklist before signing an NDA

What should be well defined

• Confidential information is clearly scoped and described.
• There are clear exceptions (public domain, independent development, court order).
• The confidentiality period has a concrete end date.
• Penalties are proportionate to actual harm.
• You can retain copies necessary for your legal defence.
• You have the right to mention the client in your portfolio (or that right is excluded with compensation).

Warning signs that require negotiation

• Definition of "confidential" that covers any information whatsoever.
• Duration exceeding 3 years for short projects.
• Non-compete clauses mixed into the NDA text.
• Disproportionate automatic penalties.
• Prohibition on disclosing the existence of the NDA itself.
• Intellectual property assignment included in the document.

Frequently asked questions about freelance NDAs

If you have been sent an NDA and are unsure whether to sign it, at Legal Stones we review your agreement, identify the problematic clauses, and prepare a counter-proposal you can send to the client in a professional manner.

Request your NDA review