Are perpetual confidentiality clauses in NDAs enforceable under current Indiana law?

Are perpetual NDAs enforceable in Indiana? Learn the legal standards for confidentiality duration and how to protect your business with TermScore.

October 7, 2026TermScore Legal Intelligence GroupStatutory & Corpus Verified717 words

Are perpetual confidentiality clauses enforceable in Indiana?

In Indiana, perpetual confidentiality clauses are generally enforceable only when they protect legitimate trade secrets under the Indiana Uniform Trade Secrets Act (IUTSA). If the information does not qualify as a trade secret, Indiana courts may deem perpetual restrictions unreasonable and unenforceable as a restraint of trade.

Key takeaway: Do not rely on perpetual clauses for general business information. If the data is not a trade secret, define a specific, reasonable expiration date to ensure enforceability.

The Legal Framework: IUTSA vs. Contract Law

Indiana law distinguishes between information that qualifies as a "trade secret" and general "confidential information." This distinction is the primary factor in determining whether a perpetual duration will hold up in court.

The Indiana Uniform Trade Secrets Act (IUTSA)

Under the IUTSA (Ind. Code § 24-2-3), a trade secret is information that derives independent economic value from not being generally known and is the subject of efforts that are reasonable under the circumstances to maintain its secrecy. Because trade secrets have no "shelf life" as long as they remain secret, courts frequently uphold perpetual non-disclosure obligations for this specific category of information.

General Confidential Information

When an NDA covers information that does not meet the high bar of a trade secret—such as internal marketing strategies, client lists that are easily discoverable, or general operational processes—Indiana courts apply a reasonableness standard. A perpetual restriction on this type of information is often viewed as an overreach, potentially functioning as an illegal restraint of trade.

  • Trade Secrets: Perpetual protection is generally acceptable.
  • General Information: Perpetual protection is highly risky and likely unenforceable.
  • Public Domain: Information that enters the public domain cannot be protected by an NDA, regardless of the clause's duration.

Action Item: Audit your existing NDAs to categorize information into "Trade Secrets" versus "General Confidential Information." Apply different duration clauses accordingly.

Reasonableness Factors in Indiana Courts

When a dispute arises, Indiana courts look at whether the restriction is broader than necessary to protect the employer's legitimate business interests. If a clause is deemed "unreasonable," the court may "blue-pencil" the contract—striking out the offending language—or, in some cases, invalidate the entire provision.

FactorTrade Secret StatusGeneral Confidentiality
DurationPerpetual is standardLimited (e.g., 2-5 years)
ScopeBroadNarrow/Specific
EnforceabilityHighModerate to Low

The "Blue-Pencil" Doctrine

Indiana courts follow the "blue-pencil" doctrine, which allows a judge to strike out unreasonable portions of a contract while leaving the remainder intact. However, courts cannot rewrite a contract to make it reasonable; they can only remove the unreasonable parts. If you draft a perpetual clause for non-trade secret information, you risk having the entire confidentiality provision struck down.

Action Item: Include a "severability clause" in your NDAs to ensure that if one portion is found unenforceable, the rest of the agreement remains valid.

Best Practices for Drafting NDAs in Indiana

To maximize the enforceability of your confidentiality agreements, follow these drafting standards:

  1. Define Trade Secrets Clearly: Explicitly label what constitutes a trade secret in the agreement.
  2. Tiered Durations: Use a tiered approach. Apply perpetual protection to trade secrets and a fixed term (e.g., 3 years post-termination) for general confidential information.
  3. Exclude Public Information: Always include a carve-out for information that is or becomes public through no fault of the receiving party.
  4. Limit the Scope: Ensure the definition of "Confidential Information" is not so broad that it prevents an employee from using their general knowledge or skill set.

Key takeaway: A well-drafted NDA is specific. Avoid "catch-all" definitions that attempt to classify every internal email or document as a perpetual trade secret.

The Risk of Over-Broad NDAs

Over-broad NDAs can lead to "chilling effects" on employee mobility, which Indiana courts disfavor. If an NDA is so broad that it effectively prevents a former employee from working in their chosen field, the court may treat it as a non-compete agreement. In Indiana, non-competes are subject to strict scrutiny and must be limited in both time and geography. If your NDA is actually a disguised non-compete, it will likely fail the reasonableness test.

Action Item: Review your NDAs to ensure they do not restrict the use of "general knowledge, skill, and experience" acquired during employment, as this is a common trigger for judicial invalidation.

Automated Analysis with TermScore

Ensuring your NDAs comply with evolving Indiana standards is complex and time-consuming. TermScore automatically analyzes your contract templates to identify perpetual clauses, flag potential over-breadth issues, and suggest language that aligns with current Indiana case law, allowing you to mitigate risk before a dispute ever reaches the courtroom.

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