Free mutual NDA template —
both-party confidentiality, clause-checked.

Why it matters: A mutual NDA must clearly identify that each party is simultaneously a "Disclosing Party" and a "Receiving Party," and that the obligations run in both directions. If the agreement is drafted from only one party's perspective — or accidentally uses one-way language — one party may be unbound while the other is fully obligated.

What Clausio checks: That both parties are identified by legal name, that the bilateral nature of the obligation is explicit, and that any language about "the Disclosing Party" is symmetric — applying to either party in that role.

Legal basis: Restatement (Second) of Contracts §§ 9, 12–17 (1981) — contract formation requires identifiable parties with legal capacity. [Confidence: medium — Restatement persuasive authority]

Why it matters: In a mutual NDA, the definition must cover both parties' disclosures — and must be broad enough to protect what's actually being shared without being so sweeping that courts find it unenforceable. The definition should align with the DTSA's trade-secret definition (independent economic value, reasonable secrecy measures) to support federal claims if needed.

What Clausio checks: That the definition covers written, oral, electronic, and visual disclosures by both parties; that it includes a marking or notice convention for designating information as confidential; and that it aligns with 18 U.S.C. § 1839.

Legal basis (high confidence): 18 U.S.C. § 1839(3) — DTSA defines "trade secret" as information that derives economic value from not being generally known and for which reasonable measures have been taken to maintain secrecy. UTSA § 1(4) — adopted by 48 states and DC, substantially similar definition.

Why it matters: Without a permitted purpose clause, the receiving party may argue they are free to use the disclosed information for any purpose — including competitive uses — as long as they do not technically "disclose" it to third parties. In a mutual NDA, the permitted purpose must be defined to apply to both parties' use of each other's information.

What Clausio checks: That the agreement states the specific purpose for which information is being shared (e.g., evaluation of a potential partnership, due diligence for an acquisition), and that the receiving party's use is limited to that purpose. Flags if the permitted purpose is vague or absent.

Legal basis (high confidence): 18 U.S.C. § 1839(5) — DTSA defines "misappropriation" to include use of a trade secret without consent. A "permitted purpose" clause narrows what uses the receiving party has consented to, supporting a misappropriation claim for uses outside its scope.

Why it matters: Vague obligations ("keep it confidential") are harder to enforce and harder to prove breach. In a mutual NDA, both parties must be bound by the same specific obligations: applying reasonable protective measures, restricting access to need-to-know personnel, ensuring those personnel are bound by equivalent obligations, and not using the information outside the permitted purpose.

What Clausio checks: That both parties' obligations are stated with equal specificity — the same care standard, the same access restrictions, and the same downstream confidentiality requirement for employees and subcontractors who receive the information.

Legal basis (high confidence): 18 U.S.C. § 1839(3)(A) — to qualify for trade secret protection, the owner must take "reasonable measures" to keep the information secret. An NDA that specifies what "reasonable measures" the receiving party must take helps satisfy this requirement.

Why it matters: Without the standard five exclusions, you create obligations a party literally cannot meet — for example, an obligation to keep confidential information that is already public knowledge. Courts and arbitrators routinely read these exclusions into confidentiality agreements even when not written, because without them the obligations may be overbroad. Including them explicitly is cleaner and prevents disputes.

What Clausio checks: That the five standard exclusions are present: (1) information already in the public domain, (2) information already known to the receiving party before disclosure, (3) information independently developed without use of the confidential information, (4) information received from a third party without confidentiality obligation, and (5) information required to be disclosed by law or court order (with notice to the disclosing party).

Legal basis (high confidence): 18 U.S.C. § 1839(3) — DTSA trade secret protection requires that information not be "generally known to or readily ascertainable" by others. Information that falls within the standard exclusions cannot qualify as a trade secret, making it unenforceable to claim it as confidential regardless of contractual language.

Why it matters: Best practice is a bifurcated term: indefinite protection for actual trade secrets (matching the DTSA's own indefinite protection), plus a fixed 2–5 year window for other confidential business information. A blanket "forever" obligation on all disclosed information — a common template mistake — has been declined by courts in New York, Texas, and Delaware as an unreasonable restraint on ordinary business information.

What Clausio checks: That the term clause distinguishes between trade secrets (indefinite) and other confidential information (fixed term). Flags a single unlimited duration applied to all information without distinction.

Legal basis (high confidence): 18 U.S.C. § 1839 — DTSA trade secret protection has no statutory expiry; it lasts as long as the information remains a trade secret. Courts in NY, TX, and DE have declined to enforce perpetual confidentiality obligations on ordinary business information that does not rise to the level of a trade secret; reasonableness standard applies.

Why it matters: Without a return-or-destroy obligation, confidential materials linger in the receiving party's systems after the agreement ends or the purpose is complete — creating ongoing risk of unauthorized use. In a mutual NDA, the obligation is symmetric: both parties must return or certify destruction of the other's materials, including copies and electronic records.

What Clausio checks: That the agreement requires return or certified destruction of all confidential materials — including electronic copies — at the end of the term or upon request, and that the obligation applies symmetrically to both parties.

Legal basis (high confidence): 18 U.S.C. § 1836(b)(2) — the DTSA allows courts to order the seizure of property containing misappropriated trade secrets. A return-or-destroy clause is the contractual analog — ensuring materials are recovered before a dispute requires litigation to force their return.

Why it matters: Once confidential information is disclosed to a third party, money damages cannot undo the harm. A well-drafted remedies clause acknowledges that breach will cause irreparable harm and that injunctive relief — not just damages — is an appropriate remedy. This makes it easier to obtain an emergency injunction without separately litigating the irreparable-harm element.

What Clausio checks: That the agreement states that breach causes irreparable harm, that injunctive relief is available without posting bond, and that DTSA exemplary damages and attorney fees are available for willful misappropriation — contingent on the DTSA § 1833(b) notice being present.

Legal basis (high confidence): 18 U.S.C. § 1836(b)(3)(A) — DTSA authorizes courts to grant injunctions to prevent actual or threatened misappropriation of trade secrets. 18 U.S.C. § 1836(b)(3)(C) — DTSA authorizes exemplary damages (up to 2x actual damages) and attorney fees for willful and malicious misappropriation — but only if the § 1833(b) whistleblower notice was included in the agreement.

Why it matters: The choice of governing law matters significantly for NDA enforceability. California, Delaware, and New York differ in how they treat NDA duration, irreparable-harm stipulations, and whether non-solicitation clauses embedded in an NDA are treated as void non-competes. Without a governing-law clause, courts apply conflict-of-laws analysis — potentially selecting a state whose rules neither party intended.

What Clausio checks: That governing law is specified and that the chosen state has a substantial connection to the agreement (at least one party is located there, or the information relates to activities there). Flags if governing law is absent.

Legal basis: Restatement (Second) of Conflict of Laws § 187 (1971) — courts enforce the parties' chosen governing law unless the chosen state has no substantial relationship to the transaction, or applying it would violate a fundamental policy of the state with the greater interest. [Confidence: medium]
Federal Arbitration Act, 9 U.S.C. § 2 (high confidence) — a written arbitration clause in an NDA is valid and enforceable as in any other commercial contract.

Why it matters: Under 18 U.S.C. § 1833(b), any NDA or confidentiality agreement — mutual or one-way — must notify each party that they cannot be held criminally or civilly liable for disclosing a trade secret to a government official or attorney to report a suspected law violation, or in a court filing made under seal. In a mutual NDA, the notice must run to both parties. If the notice is missing, both parties forfeit the right to seek exemplary damages (up to 2x actual damages) and attorney fees in DTSA litigation — even if they win on the merits. This is the clause most downloaded templates miss.

What Clausio checks: That the DTSA § 1833(b) notice is present, that it applies to both parties, and that it is not buried in the boilerplate in a way that could undermine its effectiveness as notice.

Legal basis (high confidence): 18 U.S.C. § 1833(b) — mandatory notice; failure to include forfeits eligibility for exemplary damages and attorney fees under DTSA. 18 U.S.C. § 1836(b)(3)(C) — exemplary damages and attorney-fee shifting are conditioned on the § 1833(b) notice having been provided.