Alex is Sprintlaw's co-founder and a legal technology leader. He holds law and media degrees from the University of Sydney and has been recognized by Australasian Lawyer, Lawyers Weekly and the Sydney Young Entrepreneur Awards for his work building Sprintlaw and improving access to business legal support.
Mutual non-disclosure agreements (NDAs) are a standard tool for US startups and small businesses when sharing sensitive information with potential partners, investors, or collaborators. While NDAs are common, many founders and operators make critical mistakes by assuming all NDAs are the same, overlooking state-specific requirements, or failing to review the agreement's key clauses. These missteps can leave your confidential information unprotected or expose your business to unnecessary risk.
This guide explains the most important mutual NDA clauses US businesses should review before signing. We cover what each clause means, how state law or industry rules can affect your agreement, and practical tips for founders and operators. You will also find examples, checklists, and common pitfalls to help you protect your business interests and avoid costly misunderstandings.
What Is a Mutual NDA and When Is It Used?
A mutual NDA is a contract where both parties agree to keep certain information confidential. Unlike a one-way NDA, a mutual NDA assumes both sides will be sharing sensitive details. These agreements are common in situations such as:
- Exploring business partnerships or mergers
- Joint ventures or co-development projects
- Product design or technology collaborations
- Licensing negotiations
- Supplier or vendor discussions
The main goal is to prevent either party from using or disclosing the other's confidential information without permission. While there is no federal law specifically governing NDAs, every state recognizes and enforces them under contract law if they meet basic requirements. However, enforceability and interpretation of mutual NDA clauses can vary by state, so it is important to check local rules and industry standards before signing.
For example, California restricts certain NDA terms in employment and technology contexts, while Illinois has rules about confidentiality in employment agreements. Regulated industries such as healthcare (HIPAA) and finance (FINRA) may also require additional confidentiality protections. Always consider whether your industry or state has extra requirements.
Key Clauses to Review in a Mutual NDA
When reviewing a mutual NDA, focus on these essential clauses. Each one can affect your rights, obligations, and the overall effectiveness of the agreement:
- Definition of Confidential Information
- Obligations of the Receiving Party
- Exclusions from Confidentiality
- Term and Duration
- Permitted Disclosures
- Remedies and Liability
- Governing Law and Jurisdiction
- Return or Destruction of Information
1. Definition of Confidential Information
This clause sets the boundaries of what information is protected. Look for:
- Clear and specific definitions. Does it cover oral, written, electronic, and visual information?
- Inclusion of business plans, financials, trade secrets, customer lists, and technical data.
- Avoidance of vague catch-all phrases that could create confusion.
For example, if the definition includes "all information disclosed," it may be hard to prove what was actually shared. If it is too narrow, important details may not be protected. In a tech startup, you may want to include source code, algorithms, and prototypes. In a retail business, you may want to include supplier lists and pricing data.
2. Obligations of the Receiving Party
This section outlines what each party must do to keep information confidential. Typical obligations include:
- Not disclosing confidential information to third parties
- Using the information only for the agreed purpose
- Taking reasonable steps to protect the information (such as limiting access or using secure storage)
Check if the NDA requires a certain level of care, such as "the same degree of care as your own confidential information" or "reasonable care under the circumstances." If the standard is unclear, it can be hard to enforce later. For example, a founder sharing product designs should ensure the recipient is required to store files securely and limit access to those who need to know.
3. Exclusions from Confidentiality
Most mutual NDAs carve out exceptions for information that:
- Is already public or becomes public through no fault of the receiving party
- Was already known to the receiving party before disclosure
- Is independently developed without reference to the confidential information
- Is disclosed under a legal requirement, such as a subpoena or court order
Review these exclusions carefully. If they are too broad, they can undermine the NDA. For example, if "public information" is not defined, a party could argue that widely known industry facts are not protected. In some states, courts will interpret exclusions strictly, so clarity is essential.
4. Term and Duration
The NDA should specify how long the confidentiality obligations last. Options include:
- A fixed term (such as two or five years from the date of disclosure)
- Until the information becomes public or is returned/destroyed
- Indefinitely, for trade secrets (subject to state law)
Some states, such as California, limit the enforceability of perpetual NDAs except for trade secrets. Make sure the term is reasonable for your industry and the type of information involved. For example, a startup negotiating a licensing deal may want a five-year term, while a company protecting trade secrets may require indefinite protection.
5. Permitted Disclosures
This clause explains when confidential information can be shared, such as:
- With employees, contractors, or advisors who need to know (and are bound by similar confidentiality obligations)
- As required by law or regulation
Check if the NDA requires you to notify the other party before making a legally required disclosure. Also, confirm that your contractors or affiliates are covered by the agreement or by separate NDAs. This is particularly relevant if your business regularly works with external consultants or vendors.
6. Remedies and Liability
This section covers what happens if someone breaches the NDA. Look for:
- Are there specific remedies, such as injunctive relief (a court order to stop disclosure)?
- Is liability limited or capped in any way?
- Are there exclusions for indirect or consequential damages?
Some NDAs include language that makes it easier to get a court order to prevent further disclosure, rather than just monetary damages. Others may limit liability, which could affect your ability to recover losses if the other party breaches. For example, a startup may want to ensure the NDA allows for immediate injunctive relief if a competitor tries to use confidential designs.
7. Governing Law and Jurisdiction
The NDA should state which state's laws apply and where any disputes will be resolved. This is especially important if the parties are in different states. Some states have rules that limit the enforceability of certain NDA terms, so check that the chosen law is appropriate for your deal. For example, California law may void certain confidentiality clauses that restrict employee mobility.
8. Return or Destruction of Information
This clause explains what happens to confidential information at the end of the relationship. Does the NDA require the return or destruction of all materials? Is there a timeline for doing so? Are backups and electronic copies covered? Clarifying these details can prevent disputes later. For example, a founder ending a partnership should ensure all digital files and physical documents are returned or destroyed within a set period.
Common Mistakes When Reviewing Mutual NDA Clauses
Even experienced founders and operators sometimes overlook important details in mutual NDAs. Here are some frequent mistakes and how to avoid them:
- Using a generic template without tailoring it to your situation. Every deal is different. Adjust the NDA to fit the type of information, the parties involved, and the applicable state law.
- Overlooking state-specific rules. Some states restrict NDAs in employment or technology deals, or require specific language for enforceability.
- Ignoring the definition of confidential information. A vague or overly broad definition can create confusion or make the NDA unenforceable.
- Missing the duration of confidentiality obligations. If the NDA is silent on term, courts may impose a "reasonable" period, which could be shorter than you expect.
- Not clarifying permitted disclosures. Failing to specify who can receive confidential information can lead to accidental breaches.
- Assuming all remedies are available. Some NDAs limit liability or exclude certain damages. Make sure you understand your options if there is a breach.
- Forgetting to include a governing law clause. Without this, you may face disputes in an unexpected state or under unfamiliar laws.
For example, a SaaS founder using a generic NDA template may find that it does not comply with California law, making it difficult to enforce if a dispute arises. Or, a retail operator may overlook the need to include suppliers under the NDA, exposing pricing data to third parties.
Checklist: What to Review Before Signing a Mutual NDA
Before you sign a mutual NDA, run through this practical checklist:
- Is the definition of confidential information clear and specific?
- Are your obligations as a receiving party reasonable and achievable?
- Do the exclusions from confidentiality make sense for your business?
- Is the term of the NDA appropriate for the type of information involved?
- Are permitted disclosures clearly spelled out?
- Do the remedies and liability clauses protect your interests?
- Is the governing law and jurisdiction favorable or at least neutral?
- Is there a clear process for returning or destroying information at the end of the relationship?
- Have you checked for any state-specific requirements or industry rules?
- Have you reviewed the NDA with your team or legal advisor?
Taking these steps can help prevent misunderstandings and protect your business if a dispute arises later. For example, a founder preparing to pitch to investors should confirm that the NDA covers all proprietary materials and that the term is long enough to protect ongoing negotiations.
When Should You Seek Legal Review of a Mutual NDA?
Not every NDA needs a full legal review, but you should consider getting help if:
- The deal involves significant or highly sensitive information (such as trade secrets, proprietary technology, or customer data)
- You are dealing with a party in another state or country
- The NDA is unusually long, complex, or contains unfamiliar legal language
- You are unsure about state-specific rules or industry regulations
- You have concerns about the enforceability or fairness of certain clauses
For example, a startup founder negotiating a partnership with a large tech company may face a one-sided NDA with strict liability limits or broad exclusions. In these cases, a legal review can help you understand the risks and negotiate better terms.
State law can affect the enforceability of NDAs, especially for trade secrets, employment relationships, or certain regulated industries. For example, Illinois and New York have specific requirements for employee NDAs, while Texas and Florida may enforce broader confidentiality terms. A legal professional can help you spot red flags and suggest changes before you sign.
FAQs
Are mutual NDA clauses enforceable in every state?
Most states recognize and enforce mutual NDA clauses as long as they meet basic contract requirements and do not violate public policy. However, some states, such as California, have specific rules that limit the enforceability of NDAs in certain contexts, such as employment or technology deals. Always check local laws before relying on an NDA.
What is the difference between a mutual NDA and a one-way NDA?
A mutual NDA requires both parties to keep shared information confidential, while a one-way NDA only binds one party. Mutual NDAs are common when both sides expect to disclose sensitive information, such as in joint ventures or partnership discussions.
How long should confidentiality obligations last in a mutual NDA?
The appropriate duration depends on the type of information and industry. Many NDAs set a fixed term, such as two or five years, but trade secrets may require indefinite protection. Some states limit the enforceability of perpetual NDAs, so check the law in your state.
What happens if someone breaches a mutual NDA?
If a party breaches a mutual NDA, the other party may be entitled to remedies such as monetary damages or injunctive relief (a court order to stop further disclosure). The specific remedies depend on the terms of the NDA and applicable state law.
Can I use a template for my mutual NDA?
Templates can be a helpful starting point, but they should always be tailored to your specific deal, state law, and industry requirements. Using a generic template without review can create gaps or make the NDA unenforceable.
Key Takeaways
- Mutual NDA clauses are not one-size-fits-all. Review each clause carefully to make sure it fits your business and complies with state law.
- Pay special attention to the definition of confidential information, duration, exclusions, permitted disclosures, and remedies.
- Common mistakes include using generic templates, overlooking state-specific rules, and missing key terms.
- When in doubt, seek legal review, especially for high-value deals or when dealing with parties in other states.
- Taking the time to review mutual NDA clauses can help protect your business relationships and confidential information.
If you have questions about mutual NDA clauses or need help reviewing an agreement, you can reach our team at (888) 449-8437 or team@sprintlaw.com. Where legal services are required, they are delivered by licensed lawyers at trusted US law firms through the Sprintlaw platform.








