Why mutual NDAs matter
When two parties need to share sensitive information with each other, a mutual NDA protects both sides. Unlike a one-way NDA where only one party discloses confidential information, mutual NDAs are balanced and protect both parties’ interests.Mutual NDAs are the standard for early-stage discussions between companies, investor meetings, and partnership explorations where both sides will share sensitive information.
Common use cases
You should use a mutual NDA when:Partnership discussions
Exploring potential partnerships, joint ventures, or collaborations where both parties share business strategies and capabilities
Investor meetings
Presenting detailed financials, product roadmaps, and business plans to potential investors during due diligence
Acquisition talks
Early M&A discussions where both parties need to share confidential financial and operational information
Technology evaluations
Reviewing each other’s technical capabilities, code, or proprietary systems to assess integration possibilities
Key provisions
Definition of confidential information
The NDA must clearly define what information is considered confidential: Broad definition - Typically includes any non-public business, technical, financial, or personal information disclosed by either party Marking requirements - May require confidential information to be marked as “Confidential” when disclosed in writing Oral disclosures - Should cover how confidential information shared verbally is treated (usually must be confirmed in writing within a specified timeframe)Exclusions from confidentiality
Standard NDAs exclude certain information from confidentiality obligations:Publicly available information
Publicly available information
Information that’s publicly known at the time of disclosure or becomes public through no fault of the receiving party.
Already known information
Already known information
Information the receiving party already possessed before disclosure, as evidenced by written records.
Independently developed
Independently developed
Information the receiving party develops independently without using or referring to the confidential information.
Rightfully received from third party
Rightfully received from third party
Information the receiving party receives from a third party who had the right to disclose it without confidentiality restrictions.
Required by law
Required by law
Information that must be disclosed under law, regulation, or court order (typically requires notice to the disclosing party).
Obligations of receiving party
The NDA specifies how the receiving party must handle confidential information:- Use restrictions - Only use the information for the specified purpose (evaluating the potential relationship)
- Protection measures - Use the same care in protecting the information as you use for your own confidential information
- Limited disclosure - Only share with employees, advisors, or representatives who need to know and are bound by similar obligations
- Return or destruction - Return or destroy all confidential materials when requested or when the relationship ends
Term and duration
Two key timeframes matter: Term of the agreement - How long the NDA remains in effect for receiving new confidential information (typically 1-3 years) Confidentiality period - How long the receiving party must keep information confidential after receiving it (typically 2-5 years, or indefinitely for trade secrets)When NOT to use an NDA
NDAs aren’t always appropriate or necessary: General business discussions - If you’re just exploring whether to have a conversation, you probably don’t need an NDA yet Public information - If you’re only discussing information already available publicly, an NDA adds friction without value With most VCs - Many venture capital firms refuse to sign NDAs for initial pitches to avoid conflicts. Save the NDA for detailed due diligence Over-broad application - Don’t ask everyone you meet to sign an NDA. This signals paranoia and makes you difficult to work withOne-way vs. mutual NDAs
One-way NDA
Use when only one party will disclose confidential information:- Hiring contractors or consultants
- Customer receiving technical documentation
- Company sharing information with service providers
Mutual NDA
Use when both parties will share confidential information:- Partnership discussions
- Co-development projects
- Merger or acquisition exploration
- Technology integration evaluations
Negotiation points
When reviewing an NDA, focus on these key terms: Definition scope - Is “confidential information” defined reasonably? Overly broad definitions create compliance burdens Purpose limitation - Is the permitted use specific enough to protect you but broad enough to be practical? Duration - Are the term and confidentiality periods appropriate for the information being shared? Return/destruction - Are the requirements for returning or destroying information practical? Injunctive relief - Does the NDA allow the disclosing party to seek injunctive relief for breaches without proving damages? Governing law - Which state’s laws govern the agreement? This matters more than you might thinkBest practices
Sign before sharing - Get the NDA signed before you disclose anything truly confidential Be specific about purpose - Clearly state what you’re exploring (e.g., “potential partnership for X” not just “business relationship”) Keep it standard - The more you customize, the longer negotiation takes. Use standard forms when possible Mark materials - Even if not required, mark confidential materials to make your expectations clear Limit distribution - Only share confidential information with people who actually need it Document what you share - Keep records of what confidential information you provided and when Set expectations - Be clear about what you consider most sensitive and how you expect it to be protectedGetting started
Mutual NDA template
Access a standard Mutual Non-Disclosure Agreement template on OpenLaw
Common mistakes to avoid
Sharing before signing
Sharing before signing
Too short confidentiality periods
Too short confidentiality periods
A 1-year confidentiality period is rarely sufficient. By the time you’ve shared information, explored the relationship, and potentially decided not to proceed, the period is almost over.
Vague confidential information definitions
Vague confidential information definitions
If the definition is too vague, you can’t enforce it. If it’s too narrow, important information isn’t covered. Aim for clear, comprehensive definitions.
Not addressing employee mobility
Not addressing employee mobility
What happens if an employee who received confidential information joins the other party? Good NDAs address how employee knowledge and mobility are handled.
Enforcement reality
NDAs are only as good as your ability to enforce them: Detection is hard - You often won’t know if someone misuses your confidential information unless it becomes public or obvious Litigation is expensive - Enforcing an NDA through litigation costs significant time and money Proving damages is difficult - You must usually prove actual damages, which is challenging for confidential information Relationships matter - Suing for NDA breach typically ends any business relationshipThe real value of an NDA is often the deterrent effect and the ability to seek injunctive relief quickly if you discover a breach. View it as one tool in your confidentiality protection strategy, not a silver bullet.