Legal Age to Sign a Contract: What the Law Says

What Is the Legal Age to Sign a Contract?

In the United States, the age of majority — and therefore the legal age to sign a binding contract — is 18 in most states. Alabama and Nebraska set it at 19, while Mississippi sets it at 21. A person who has not reached the age of majority is considered a minor and generally has limited contractual capacity.

Can Minors Sign Contracts?

Minors can physically sign contracts, but those contracts are typically voidable at the minor's discretion. This means:

  • The minor can choose to honor the contract or disaffirm (cancel) it
  • The other party cannot cancel on the basis that they contracted with a minor
  • The minor can usually disaffirm at any time before reaching the age of majority, or within a reasonable period after

Exceptions: Contracts Minors Cannot Void

Certain contracts involving minors may be enforceable:

  • Necessities — contracts for food, clothing, shelter, and medical care are generally enforceable to prevent unjust enrichment
  • Employment contracts — some states allow minors to enter binding employment or entertainment contracts with court or parental approval
  • Military enlistment — binding at age 17 with parental consent
  • Court-approved contracts — a judge can approve a minor's contract (common in entertainment and sports)

Ratification After Turning 18

Once a person reaches the age of majority, they can ratify (confirm) a contract they entered as a minor. Ratification can be explicit or implied through continued performance. Failure to disaffirm within a reasonable time after turning 18 may be treated as ratification.

When to Consult a Lawyer

Consider seeking legal advice if you are contracting with a minor, if a minor wishes to disaffirm an existing agreement, or if you need to determine whether a specific contract falls within the "necessities" exception.

This article is for informational purposes only and does not constitute legal advice. Consult a licensed attorney for guidance specific to your situation.

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