Yes, you can open a savings account for your niece, but the rules depend on her age and your relationship to her

If your niece is under 18, you can open a custodial savings account in her name with yourself as the custodian. You'll control the account until she reaches the age of majority (18 or 21, depending on your state), at which point it becomes hers to manage. If she's already an adult, she can open her own account, though you can gift money into it or help her set one up.

The main difference between a regular account and a custodial one is legal ownership and tax treatment. A custodial account belongs to your niece from day one—the money is hers, not yours—but you have the power to decide how it's spent until she comes of age. This matters for taxes and for what happens if you die or face creditors.

Banks and credit unions offer custodial accounts under two legal frameworks: the Uniform Transfers to Minors Act (UTMA) or the Uniform Gifts to Minors Act (UGMA). Most states use UTMA, which allows more types of assets. The account will be registered as "Your Name, Custodian for [Niece's Name]."

Key Takeaways

  • Custodial accounts are opened in the minor's name with you as custodian, and the money belongs to her from the start, not to you.
  • You'll need your niece's Social Security number, proof of her identity, and proof of your identity to open the account.
  • When your niece reaches 18 or 21 (depending on your state), the account automatically transfers to her control—you cannot prevent this.
  • Custodial accounts have tax implications: earnings over a certain threshold are taxed at your niece's rate, which is usually lower than yours.
  • If you want to restrict how the money is used after she turns 18, a custodial account won't do that—consider a trust instead.

What you'll need to open the account

Bring or provide your niece's Social Security number, a birth certificate or passport, and proof of her address (usually a parent's utility bill or lease). You'll also need your own ID and Social Security number. Some banks ask for the custodian's address separately from the minor's address.

If your niece's parents are still living, you don't need their permission to open a custodial account in her name—the account is legally hers, not theirs. However, it's wise to tell them what you're doing, especially if they manage her finances or have specific plans for her money. If you're opening the account without parental knowledge and her parents later object, they can petition the court to close it, though this is rare.

Most banks and credit unions offer custodial accounts with no minimum balance, though some require $25 to $100 to start. Online banks often have lower minimums than brick-and-mortar branches. Ask whether the account comes with a debit card for your niece (usually available at age 13 or older) and what happens to the account when she turns 18.

How the account transfers when she turns 18

On your niece's 18th birthday (or 21st in a few states), the custodial account automatically becomes her account. You lose all control—you cannot withdraw money, freeze the account, or prevent her from spending it. The bank will send her paperwork explaining her new rights, and the account will be re-registered in her name alone.

This is a hard stop, not a negotiation. If you want to maintain control over the money after she turns 18, a custodial account is not the right tool. You would need to set up a trust instead, which requires a lawyer and costs more to establish, but gives you the option to name a trustee who controls the money past age 18 according to rules you set.

Some banks offer a grace period where they'll hold the account in your name for a few days while your niece confirms her identity, but the transfer itself cannot be delayed. If you're concerned about her spending habits or financial maturity, discuss this with her parents before opening the account.

Tax treatment of custodial accounts

Money you deposit into a custodial account is not a taxable gift to your niece—you can give up to a certain amount per year without filing a gift tax return. For 2024, that limit is $18,000 per person per year. If you give more than that, you'll need to file Form 709 with the IRS, though you likely won't owe tax unless you've given away more than $13.61 million in your lifetime.

Interest and dividends earned in the account are taxed at your niece's tax rate, not yours. This is usually much lower than your rate. The first $1,300 of earnings per year (as of 2024, though this changes annually) is tax-free. Earnings between $1,300 and $2,600 are taxed at her rate. Earnings above $2,600 are taxed at your rate. These thresholds shift each year with inflation.

You'll receive a 1099-INT or 1099-DIV form showing the interest or dividends earned, and you may need to file a tax return for your niece even if she has no income. Check with a tax professional about whether filing is required in your situation.

Custodial accounts versus other ways to save for a minor

A 529 college savings plan is another option if your goal is to fund education. You can open a 529 in your niece's name with yourself as the account owner (not custodian). You keep control of the money even after she turns 18, and you can change the beneficiary to another family member if she doesn't go to college. The tradeoff is that non-education withdrawals face a 10% penalty on earnings, though not on your contributions.

A trust gives you the most control but requires a lawyer to set up. You can specify exactly when and how your niece receives the money—for example, half at 25 and half at 30, or only for education and medical expenses. Trusts cost $500 to $2,000 to establish and may have annual accounting costs.

A regular savings account in your name with the intention of giving it to her later is the simplest but the riskiest. The money is legally yours, so creditors or an ex-spouse could claim it. If you die, it becomes part of your estate and may be tied up in probate. It also doesn't teach her about managing money.

What happens if you die before she turns 18

The custodial account passes to your niece's estate or to a successor custodian you name when you open the account. Most banks allow you to name a backup custodian—usually a parent or another trusted adult—who takes over if you die or become incapacitated. If you don't name one, the court may appoint a guardian to manage the account, which can be slow and expensive.

Name a successor custodian when you open the account. This is free and takes a few minutes. If you don't have someone in mind, ask her parents whether they'd be willing to step in. The successor custodian has the same duties you do: to manage the money in her best interest until she turns 18.

Frequently Asked Questions

Can I use the money in the custodial account to pay for her expenses like school or medical bills?

Yes. The money is hers, so you can spend it on her benefit—tuition, medical care, food, housing. You cannot use it for your own expenses or to pay for things you'd normally pay for anyway (like her share of family groceries). The IRS watches for custodians who treat the account as their own money, so keep records of what you spent it on.

What if I want to take the money back if she doesn't use it wisely?

You cannot. Once money is in a custodial account, it belongs to her. You can refuse to add more, but you cannot withdraw what's already there. If you're worried about her spending habits, talk to her parents about setting expectations, or consider a trust instead, which lets you control when she gets the money.

Do I have to tell her parents I'm opening this account?

You don't have to, but you should. If her parents find out later and object, they can petition to close the account, which creates conflict and legal costs. A conversation beforehand prevents problems and shows respect for their role in her life.

Can I open a custodial account if I'm not her parent?

Yes. Aunts, uncles, grandparents, and other relatives can open custodial accounts. You don't need the parents' permission, though telling them is wise. The account is in her name, not yours, so there's no legal barrier to you being the custodian.

What happens if she needs the money before she turns 18?

You can withdraw it as her custodian if it's for her benefit. You don't need her permission. If you withdraw it for your own use, that's a breach of your duty as custodian and could expose you to a lawsuit from her parents or from her later.