Key Takeaways

  • In most U.S. states, you must be 18 or older to sign a legally binding contract.
  • Contracts with minors (under 18) are usually voidable at the minor’s option, but there are exceptions.
  • Essential contracts—like for food, shelter, medical care, or student loans—may still bind minors.
  • Some states have special rules allowing minors to sign certain contracts (e.g., entertainment or sports).
  • Parents or guardians often co-sign contracts when minors are involved, making the agreement enforceable.
  • Always read and understand contract terms; consider seeking legal advice for clarity or disputes.

At what age can you sign a contract? Actually, any time you make a purchase, you are taking part in a contract. For a contract to subsist, you have to offer to purchase something, the seller accepts your offer, and then an exchange for something of value occurs. A binding contract is an agreement executed in writing and signed by the participants of the agreement so that a court of law has the authority to enforce a contract if one of the parties doesn't hold up their side of the agreement.

By law, it is not legal for someone to participate in a binding contract if they are under 18 years of age in most states. There are many reasons why it is necessary to sign a binding contract for goods and services. For example, with cell phone service, cable service, and gym membership contracts, it is imperative that you understand what the legal ramifications are on the contract before you sign it. It is a necessity to be of legal age when entering into a contract because you are old enough to be responsible for your own actions.

Things to Remember When Signing a Contract

Before deciding to sign a contract with one company, research all companies to see what they are offering. The more information you have about each company, the more you can compare prices, warranties/guarantees, and the length of time each contract is for, along with any other terms or conditions that are relevant. Other things to consider are:

  • Research the company you would like to do business with by verifying their reputation with websites like the Better Business Bureau, Yelp, and Facebook.
  • Most contracts are negotiable, so you can probably use the information you collect while investigating the companies to get the most favorable price for your desired service.
  • Don't let the companies you're doing business with coerce you and make you feel pressured to sign their contracts at once.
  • Read the contract all the way through and pay close attention to the details. Make certain that any claims or verbal agreements made by the sales representative are also mentioned in the contract. If you have any concerns, make them known to the salesperson.
  • Make sure you understand everything stated in the contract. If there is confusion about any aspect contained in the contract, ask the sales representative questions to get a clear comprehension of what you're signing.
  • When reading the contract all the way through, don't forget to read the fine print. It is especially important to read the fine print as it is a part of the contract and it will undoubtedly contain very pertinent information about your purchase of goods or services. If you think you need extra help that the sales representative isn't giving you, take the contract to a lawyer so they can review it.
  • When you are dealing with the sales representative, be sure to get contact information for customer service in case there is a need for assistance or to file a complaint. In addition, request that the representative gives you information for the proper steps that you need to perform when filing a complaint.
  • One thing to keep in mind is that any contract that you sign is a legally enforceable document, so whatever you've agreed to by signing the contract, you will have to deal with the consequences. If you have second thoughts about the contract you have signed, there is a way to get released from it. There is a short period of time, known as the "cooling off period," where you are able to cancel a contract without incurring a penalty, which is information that will be referred to in the contract.

If you have any further questions about the minimum age at which you can sign a contract and other contract details, the lawyers of UpCounsel.com will assist you in all your legal questions or help you if you are involved in a contract that you want to be released from. Post your legal need on UpCounsel's marketplace to ask any legal questions concerning how these agreements can impact your business.

Age Requirements for Signing a Contract

In the United States, the general rule is that you must be 18 years old to enter into a legally binding contract. This is because 18 is the legal “age of majority,” when individuals are presumed to have full capacity to understand and be bound by their agreements.

However, the question of how old do you have to be to sign a contract has important nuances. Minors (under 18) can technically sign contracts, but those contracts are often voidable at the minor’s discretion. This means the minor may choose to cancel or disaffirm the contract before reaching majority age or within a reasonable time after turning 18.

Exceptions for Minors

Although minors generally lack capacity to contract, certain agreements are enforceable:

  • Necessities: Contracts for essential items like food, clothing, medical services, and housing are binding.
  • Student Loans and Educational Services: In many cases, loans for education or agreements with schools cannot be disaffirmed.
  • Employment and Entertainment Contracts: States like California allow minors to sign work, music, or sports contracts if approved by a court.
  • Marriage or Emancipation: Minors who are legally emancipated or married may be treated as adults for contract purposes.

These exceptions reflect public policy, which seeks to prevent minors from avoiding responsibility for fundamental needs while still protecting them from exploitative agreements.

What Happens if a Minor Signs a Contract?

If a minor signs a contract that does not fall under an exception, the agreement is usually not automatically void but instead voidable by the minor. This means:

  • The minor may enforce the contract against the other party if it benefits them.
  • The other party cannot enforce the contract if the minor chooses to cancel.
  • Upon disaffirming, the minor typically must return any goods or money still in their possession, though they may not owe damages for use or depreciation.

For businesses, this creates risk: agreements with minors may not hold up in court unless reinforced by a guardian’s signature.

Role of Parents and Guardians

Because of the risks involved, many companies require a parent or legal guardian to co-sign when minors engage in significant agreements, such as:

  • Apartment leases
  • Cell phone contracts
  • Gym memberships
  • Loans or financing agreements

A co-signer ensures that the obligations are enforceable against an adult, providing legal security for both sides. Without this, businesses may be left with no remedy if the minor cancels the agreement.

Frequently Asked Questions

  1. How old do you have to be to sign a contract legally?
    In most states, you must be 18 years old. Minors can sign, but those contracts are often voidable.
  2. Can a 16-year-old sign a contract?
    Yes, but most contracts signed by someone under 18 are not enforceable unless they involve necessities or specific state-approved exceptions.
  3. Are contracts with minors automatically void?
    No, they are usually voidable at the minor’s option—the minor may cancel but the other party cannot enforce against them.
  4. What types of contracts can minors be held to?
    Minors may be bound to contracts for necessities (food, shelter, medical services), student loans, or court-approved employment/entertainment agreements.
  5. Can a parent make a minor’s contract enforceable?
    Yes. If a parent or guardian co-signs, the contract becomes binding on the adult, ensuring enforceability.

If you need help with understanding What Age Can You Sign a Contract, you can post your legal need on UpCounsel’s marketplace. UpCounsel accepts only the top 5 percent of lawyers to its site. Lawyers on UpCounsel come from law schools such as Harvard Law and Yale Law and average 14 years of legal experience, including work with or on behalf of companies like Google, Menlo Ventures, and Airbnb.