How to Properly Sign Checks for a Minor’s Account

Quick answer

• Open a joint bank account with the minor, with you as the custodian.
• The minor can sign checks if they are of sufficient age and understanding, but you will likely need to co-sign.
• For younger children, you will sign on behalf of the minor, clearly indicating your role as custodian.
• Always supervise check writing and ensure proper record-keeping.
• Understand that bank policies can vary regarding the age at which a minor can independently sign checks.
• Consult the bank where the account is held for their specific requirements.

Who this is for

• Parents or guardians looking to teach financial literacy to their children.
• Individuals who have established a savings or checking account for a minor.
• Anyone needing to understand the legal and practical aspects of signing checks on behalf of a minor.

What to check first (before you act)

Goal and timeline

What is the purpose of this account and the checks? Is it for teaching, saving for a specific item, or general allowance management? Knowing your goal helps determine the level of independence you can grant the minor and the type of oversight needed. Your timeline also matters; if it’s for a short-term learning experience, you might be more hands-on than for a long-term savings goal.

Current cash flow

Understand the money coming into and going out of the account. This includes deposits (allowance, gifts) and withdrawals (purchases, savings transfers). Having a clear picture of the account’s activity is crucial for effective management and to prevent overdrafts.

Emergency fund or safety buffer

Ensure there’s a sufficient buffer in the account to cover unexpected expenses or potential errors in check writing. This prevents overdraft fees and protects the account from negative balances. For a minor’s account, this buffer also provides a safety net as they learn.

Debt and interest rates

While minors typically don’t incur debt in the same way adults do, understand any potential fees associated with the account. Some checking accounts might have monthly service fees or per-transaction charges. Also, be aware if the account offers any interest on balances, though this is less common for checking accounts.

Credit impact

For most minor accounts, especially those where an adult is a joint owner or custodian, there is no direct credit impact on the minor. However, if the account is mismanaged and leads to overdrafts or unpaid fees, it could potentially affect the joint adult’s credit report. Always confirm with the bank.

Step-by-step (simple workflow)

Step 1: Open a Joint Account or Custodial Account

What to do: Visit a bank or credit union and open an account for the minor. You will likely need to choose between a joint account (where both you and the minor are owners) or a custodial account (like a UTMA/UGMA, where you manage assets for the minor until they reach a certain age).
What “good” looks like: You have a clear understanding of the account type, its features, and the responsibilities associated with it.
A common mistake and how to avoid it: Assuming any account will work. Avoid this by discussing your goals with the bank representative and choosing the account structure that best fits your needs.

Step 2: Understand Bank Policies on Minor Signatures

What to do: Ask the bank specifically about their policies regarding who can sign checks and at what age a minor can be authorized to do so.
What “good” looks like: You know precisely what the bank requires for check authorization.
A common mistake and how to avoid it: Assuming all banks have the same rules. Avoid this by directly asking the bank; policies vary significantly.

Step 3: Determine the Minor’s Signing Authority

What to do: Based on the minor’s age, maturity, and bank policy, decide if they can sign checks independently, co-sign with you, or if you will sign on their behalf.
What “good” looks like: A clear decision is made that balances the minor’s learning with financial safety.
A common mistake and how to avoid it: Granting too much independence too soon. Avoid this by starting with co-signing or supervision and gradually increasing autonomy as maturity grows.

Step 4: Co-sign Checks (If Applicable)

What to do: If the minor is allowed to sign but requires a co-signer, ensure both your signature and the minor’s signature appear on the check.
What “good” looks like: Both required signatures are present and legible on the check.
A common mistake and how to avoid it: Forgetting to sign or having an illegible signature. Avoid this by carefully reviewing the check before it’s used.

Step 5: Sign as Custodian (If Applicable)

What to do: If you are signing on behalf of the minor, clearly indicate your role. This might involve writing “By [Your Name], Custodian for [Minor’s Name]” or similar wording as directed by the bank.
What “good” looks like: The check clearly shows that you are acting in a representative capacity.
A common mistake and how to avoid it: Signing your name alone without indicating your custodial role. This could create legal ambiguity. Avoid this by following the bank’s specific instructions for custodian signatures.

Step 6: Teach Check Writing Basics

What to do: Show the minor how to correctly fill out the date, payee, amount in numbers, amount in words, and the memo line.
What “good” looks like: The minor understands each part of a check and how to fill it out accurately.
A common mistake and how to avoid it: Not teaching the difference between writing the amount in numbers and words, or writing it incorrectly. Avoid this by demonstrating and practicing, emphasizing that the written amount is legally binding.

Step 7: Monitor Account Balances

What to do: Regularly review the account balance to ensure there are sufficient funds for any checks written.
What “good” looks like: The account balance is always sufficient to cover outstanding checks.
A common mistake and how to avoid it: Not tracking written checks against the balance. Avoid this by keeping a register or using online banking tools to monitor funds.

Step 8: Review All Transactions

What to do: Periodically go over all checks written, deposits made, and any bank statements with the minor.
What “good” looks like: The minor understands where their money is going and can ask questions about transactions.
A common mistake and how to avoid it: Not involving the minor in the review process. Avoid this by making it a regular teaching moment, explaining each transaction.

Step 9: Secure Checkbooks and Blank Checks

What to do: Keep the checkbook and blank checks in a safe place, out of reach of the minor when not in use.
What “good” looks like: Blank checks are secure and cannot be accessed or used without permission.
A common mistake and how to avoid it: Leaving checkbooks lying around. Avoid this by storing them securely, just as you would with important documents.

Step 10: Handle Errors Correctly

What to do: If a mistake is made on a check, follow the bank’s procedures for voiding the check and issuing a new one.
What “good” looks like: Errors are corrected properly according to bank guidelines, and the incorrect check is clearly marked as void.
A common mistake and how to avoid it: Trying to alter a check with correction fluid or by crossing out. This can make the check invalid. Avoid this by voiding the check and starting over.

Common mistakes (and what happens if you ignore them)

| Mistake | What it causes | Fix