Michigan Trade Secret Laws: UTSA, Remedies & Deadlines

Michigan protects trade secrets under the Michigan Uniform Trade Secrets Act, Mich. Comp. Laws §§ 445.1901 to 445.1910, enacted in 1998. The statute follows the Uniform Trade Secrets Act model and sets a three-year limitations period from discovery of misappropriation. Both injunctive and monetary remedies are available under the state statute.

This guide is part of our Trade Secret Laws by State series.

Information last verified on 2026-06-25. This article presents general legal information, not legal advice. For a full overview of trade secret protections across the country, see Trade Secret Laws by State.

Does Michigan have a trade secret law?

Michigan enacted the Michigan Uniform Trade Secrets Act (MUTSA) in 1998, codified at Mich. Comp. Laws §§ 445.1901 to 445.1910. The statute closely follows the Uniform Law Commission's model act, providing a comprehensive framework for civil claims arising from the misappropriation of trade secrets. Michigan courts may consult UTSA commentary and decisions from other UTSA jurisdictions when interpreting the Michigan statute. The Act governs both the definition of protectable information and the full range of civil remedies available to trade secret owners. Criminal conduct involving trade secrets may also be pursued under the federal Economic Espionage Act, 18 U.S.C. §§ 1831-1832.

What counts as a trade secret in Michigan?

Section 445.1902 of the Michigan Compiled Laws defines a trade secret as information, including a formula, pattern, compilation, program, device, method, technique, or process, that satisfies two requirements.

First, the information must derive independent economic value, actual or potential, from not being generally known to, and not being readily ascertainable by proper means by, other persons who can obtain economic value from its disclosure or use.

Second, the information must be the subject of efforts that are reasonable under the circumstances to maintain its secrecy.

Both conditions must be met. Information that may qualify includes customer and vendor lists, pricing strategies, proprietary software or algorithms, manufacturing specifications, and business or marketing plans, provided both prongs are satisfied. Misappropriation under § 445.1902 means acquisition of a trade secret by improper means (theft, bribery, misrepresentation, breach or inducement of a breach of a duty to maintain secrecy) or disclosure or use of a trade secret without consent by a person who obtained it improperly or knew or had reason to know it was obtained improperly.

Reverse engineering and independent development are lawful under Michigan law. A person who legitimately discovers the same information through their own work has not committed misappropriation.

Remedies and the limitations period in Michigan

Section 445.1903 authorizes courts to issue injunctions to prevent actual or threatened misappropriation of a trade secret. An injunction may be conditioned on payment of a reasonable royalty when an absolute prohibition would be inequitable. Courts may also compel affirmative acts to protect a trade secret.

Section 445.1904 governs damages. A claimant may recover (a) actual loss caused by the misappropriation and the unjust enrichment not captured in the actual-loss figure, or (b) damages measured by a reasonable royalty for the period during which the misappropriation occurred. Section 445.1904 does not provide an exemplary or double-damages award; federal DTSA exemplary damages are a separate remedy subject to federal requirements.

Section 445.1905 permits an award of attorney fees to the prevailing party when (a) a misappropriation claim was made in bad faith, or a motion to terminate an injunction was made or resisted in bad faith, or (b) willful and malicious misappropriation was established.

The limitations period under § 445.1907 is three years, measured from the date misappropriation was discovered or, by the exercise of reasonable diligence, should have been discovered.

How the federal Defend Trade Secrets Act applies in Michigan

The federal Defend Trade Secrets Act (DTSA), 18 U.S.C. §§ 1836-1839, has provided a federal civil remedy for trade secret misappropriation since May 11, 2016. Because the DTSA requires the trade secret to relate to a product or service used in, or intended for use in, interstate or foreign commerce, most Michigan business trade secrets qualify. Michigan claimants routinely plead both MUTSA and the DTSA in a single lawsuit.

Key DTSA provisions that supplement Michigan state law include:

• Ex parte seizure orders: Federal courts may order the immediate seizure of property to prevent the propagation or disclosure of a trade secret in extraordinary circumstances (18 U.S.C. § 1836(b)(2)).
• Whistleblower immunity: An individual who discloses a trade secret to a government official or attorney solely to report a suspected legal violation is immune from DTSA liability (18 U.S.C. § 1833(b)). Employers using confidentiality agreements must include notice of this immunity in any agreement signed or materially updated after May 11, 2016, or they forfeit eligibility for exemplary damages and attorney fees under the DTSA.
• No preemption: The DTSA does not preempt MUTSA or other state law (18 U.S.C. § 1838), so both claims may proceed simultaneously.

Protecting trade secrets in Michigan: practical steps

Reasonable secrecy measures are not a suggestion under MUTSA; they are a definitional element of trade-secret status. Courts assess whether protective efforts were proportionate to the value of the information and to the risk of disclosure. Common protective measures include:

• Written non-disclosure and confidentiality agreements with employees, contractors, and business partners, updated to include the DTSA whistleblower-immunity notice for agreements executed after May 11, 2016
• Role-based access controls and encryption requirements for digital files and systems
• Physical security for facilities and documents containing sensitive business information
• Consistent, visible marking of documents and files as confidential or proprietary
• Employee offboarding protocols covering device return, credential revocation, and written reminders of post-employment obligations

Michigan courts look at whether a company consistently treated information as confidential in practice. A company that labels materials as confidential but then shares them broadly internally or with outside parties without controls may find that protection undermined.

This article presents general legal information as of 2026-06-25 and is not legal advice. Laws change, and individual circumstances vary. Consult a lawyer licensed in Michigan for guidance on your specific situation.

Related articles

• Trade Secret Laws by State
• Massachusetts Trade Secret Laws
• Minnesota Trade Secret Laws
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Last updated: 2026-06-25.