Yes, you can open a savings account for your nephew, but the method depends on his age
You can set up a savings account in your nephew's name, but banks handle this differently depending on whether he is a minor or an adult. If your nephew is under 18, you will need to be his parent or legal guardian to open an account in his name alone. If you are not his parent or guardian, you can still fund an account he owns, but his parent or guardian must open it. If your nephew is 18 or older, he can open his own account, and you can gift money into it without restrictions.
The account type and who controls the money during his childhood also matters. A custodial savings account (also called a UTMA or UGMA account in most states) lets you open an account in his name with you as the custodian — you manage the money until he reaches the age of majority, usually 18 or 21 depending on your state and the account type. A joint account with his parent or guardian means both of you can deposit and withdraw. A 529 education savings plan is a separate option if the money is meant for college.
Key Takeaways
- If your nephew is a minor, his parent or legal guardian must open the account; you cannot open one in his name alone unless you have guardianship.
- A custodial account lets you fund and manage money in your nephew's name until he reaches adulthood, at which point he takes control.
- You can add money to a joint account your nephew's parent opens, but both account holders can withdraw funds.
- A 529 plan is a tax-advantaged option if the money is specifically for education expenses.
- Once your nephew turns 18, he can open his own account and you can transfer or gift money to it directly.
Custodial accounts: you manage the money until he comes of age
A custodial account is the most common way to save money for a minor in his own name. You open the account at a bank, credit union, or brokerage in your nephew's name, with yourself listed as the custodian. You control all deposits, withdrawals, and investment decisions while he is a minor. The account belongs to him — it is his Social Security number on the account, not yours — but you have the legal authority to manage it.
When your nephew reaches the age of majority (18 in most states, 21 in a few), the account automatically transfers to his control. He then owns the money outright and can do what he wants with it. This is different from a joint account, where you both have access at any time. The custodian arrangement is cleaner legally and often preferred by banks because it is clear who has authority while the child is young.
To open a custodial account, bring your nephew's birth certificate and Social Security number, your ID, and proof of address to the bank. Some banks let you open one online. Ask the bank whether they offer UTMA (Uniform Transfers to Minors Act) or UGMA (Uniform Gifts to Minors Act) accounts — these are the legal structures that make custodial accounts work. Not all banks offer both, and the rules vary slightly by state.
Joint accounts: simpler to set up, but both of you can withdraw
A joint account with your nephew's parent or guardian is faster to open and requires less paperwork than a custodial account. Both account holders have full access to the money — either of you can deposit or withdraw at any time. This works well if you and his parent are on the same page about the money's purpose and trust each other completely.
The downside is that there is no legal protection if you and his parent disagree about how the money should be used. If his parent withdraws the money for something you did not intend, you have no recourse. Also, a joint account in your nephew's name may affect his financial aid may be able to access for college later, since it counts as his asset. A custodial account has the same effect, but at least the legal structure is clearer.
To open a joint account, you and his parent both go to the bank with ID and proof of address. The bank will ask whose name the account is in — usually the child's — and will confirm that both of you agree to joint ownership. Some banks require both owners to be present; others let one person open it and add the second owner later.
529 plans: tax-advantaged savings for education
If the money is meant for college or other education expenses, a 529 savings plan offers tax advantages that regular savings accounts do not. You contribute money to the plan, and it grows tax-free as long as it is used for education. When your nephew goes to college, withdrawals for tuition, room and board, books, and other education costs are not taxed.
Each state runs its own 529 plan, though you do not have to use your home state's plan — you can open a plan in any state. The plans vary in fees, investment options, and minimum contributions. Some have no minimum; others require $25 or $50 to start. You can contribute up to $18,000 per year per person (as of 2024) without triggering gift tax, though this limit changes yearly.
To open a 529, you go to your chosen state's plan website or work with a financial advisor. You will need your nephew's Social Security number and his parent's information. You become the account owner, and your nephew is the beneficiary. If he does not go to college, you can transfer the money to another family member's 529 or withdraw it (though you will owe taxes and a penalty on the earnings, not the contributions).
What you need to open an account: documents and information
For a custodial account, bring your nephew's birth certificate, his Social Security number, your government-issued ID, and proof of your current address (a utility bill or bank statement works). Some banks also ask for his parent's information, even though they are not opening the account. Call ahead to confirm what the specific bank needs.
For a joint account with his parent, both of you need ID and proof of address. The bank will also ask for your nephew's birth certificate and Social Security number. If you are opening the account online, you may be able to upload documents; if in person, bring originals.
For a 529 plan, you need your nephew's Social Security number and his parent's tax ID (usually their Social Security number). You will also fill out a form naming yourself as the account owner and your nephew as the beneficiary. Most 529 plans let you open an account online in 10 to 15 minutes.
Age matters: what changes when your nephew turns 18
Once your nephew turns 18, he is legally an adult and can open his own bank account without a parent or guardian. At that point, a custodial account automatically converts to a regular account in his name, and he takes full control. You can no longer make withdrawals or decisions about the money.
If you want to continue funding his savings after he turns 18, you can simply transfer money to his account or give him cash. There are no restrictions on how much you can gift him each year for personal use. If you are funding education through a 529, the account stays in your name as the owner, but he can direct how the money is used once he is in college.
Some banks let you convert a custodial account to a regular account before age 18 if the minor requests it and the bank allows it, but this is rare and usually requires the custodian's permission. Check with your bank about their specific rules.
Comparing your options: which account type makes sense
| Account Type | Who Opens It | Who Controls Money | When He Takes Over | Best For |
|---|---|---|---|---|
| Custodial (UTMA/UGMA) | You, as custodian | You until age 18–21 | Age of majority (state-dependent) | Long-term savings; you want full control while he is young |
| Joint Account | You and his parent together | Both of you, anytime | Already shared; he can use it now | Short-term goals; you trust his parent completely |
| 529 Education Plan | You, as account owner | You choose how it is invested | He directs use in college; you keep ownership | Education savings; tax advantages matter |
| His Own Account (age 18+) | He opens it himself | He does, fully | Immediately | He is an adult; you want no legal role |
Frequently Asked Questions
Do I need his parent's permission to open a custodial account?
You do not need written permission, but it is wise to tell his parent what you are doing. The account is in your nephew's name and legally his, so his parent cannot close it or take the money. However, if his parent objects, they may try to challenge the account later, especially if there is family conflict. A quick conversation prevents misunderstanding.
What happens to the money if I die before he turns 18?
The money stays in the custodial account in his name. His parent or legal guardian becomes the new custodian and manages it until he reaches adulthood. Name a successor custodian in your will or the account paperwork if possible, so there is no confusion about who takes over. If you do not name one, the bank or court will decide.
Can I withdraw money from a custodial account for his expenses?
Yes. As custodian, you can withdraw money for his benefit — food, clothing, education, medical care, and similar expenses. You cannot withdraw it for your own use. If you do, you may face legal liability. Keep records of what you withdraw and what it was used for, especially if large amounts are involved.
Does a savings account for my nephew affect his financial aid for college?
Yes. Both custodial accounts and joint accounts in his name count as his assets on the Free Application for Federal Student Aid (FAFSA). Assets in a student's name reduce his aid more than assets in a parent's name. A 529 plan in a parent's name has less impact on aid than one in the student's name. If college aid is a concern, talk to a financial advisor about the best structure.
Can I open a custodial account if I am not related to my nephew?
Yes. You do not have to be a blood relative to be a custodian. You do need to be an adult and pass the bank's background check. Some banks ask why you are opening the account; be straightforward that you are saving money for a child in your life. The bank cares that you have a legitimate reason, not that you are a family member.