You can invest in stocks before 18, but not on your own

A minor cannot open a brokerage account or buy stocks directly. You need an adult — usually a parent or guardian — to open and control a custodial account in your name. The adult manages the account and makes all trades, but the money and investments legally belong to you. Once you turn 18, you take full control.

The two main account types are a Uniform Gifts to Minors Act (UGMA) account and a Uniform Transfers to Minors Act (UTMA) account. Both work the same way for stock investing: an adult custodian holds the account, you own the assets inside, and you get control when you reach the age of majority (18 or 21, depending on your state and account type).

Key Takeaways

  • A parent or guardian must open and manage a custodial account; you cannot open a brokerage account yourself until you are 18.
  • UGMA and UTMA accounts let you own stocks before 18, with the adult acting as custodian until you reach the age of majority.
  • Any income the investments earn — dividends, capital gains — is taxed, usually at your tax rate rather than your parent's, which is often lower.
  • Once you turn 18 or 21 (depending on state law and account type), you automatically gain full control and the custodian cannot touch the money.

How a custodial account works in practice

Your parent or guardian chooses a brokerage — firms like Fidelity, Charles Schwab, Vanguard, and others all offer custodial accounts. The adult provides their Social Security number and yours, proof of identity, and an address. The brokerage then opens the account in both names: "[Your Name] custodian for [Your Name]" or similar language.

The adult deposits money and decides what to buy. You can research stocks together and make suggestions, but the adult places all trades. You see the account statements and watch the balance grow, but you cannot move money or sell shares without the custodian's permission. This is the legal requirement — the account is yours to own, but not yours to control until you are older.

The brokerage sends tax documents to both of you at the end of the year. Any dividends paid or gains from selling stocks are reported on your tax return, not your parent's. This usually means lower taxes overall, since your income is typically lower than theirs.

UGMA vs. UTMA: which one matters for stocks

Both account types work identically for buying stocks. The practical difference is what can go into them. UGMA accounts hold cash, stocks, bonds, and mutual funds. UTMA accounts can also hold real estate, artwork, and other property. For stock investing, either one works.

The main difference you will notice is when you turn 18 or 21. In most states, UGMA accounts transfer to you at 18. UTMA accounts transfer at 21. A few states let the custodian choose. Ask your parent which one they opened and check your state's law — your state's secretary of state website usually has this information.

Once the account transfers to you, it becomes a regular brokerage account under your name alone. You can then buy, sell, or withdraw money without anyone's permission.

Tax treatment of dividends and gains

When stocks pay dividends or you sell shares for a profit, that income is taxed on your tax return. Because you likely earn less than your parents, your tax rate is lower — sometimes zero if your total income is below the standard deduction.

There is a wrinkle called the "kiddie tax" that applies if you are under 18 (or under 24 in some cases and still a full-time student). If your investment income exceeds a certain threshold — roughly $1,300 per year as of 2024, though this changes annually — the excess is taxed at your parent's rate instead of yours. This is designed to prevent parents from shifting large amounts of income to children to avoid taxes. For modest stock portfolios, this rarely matters.

Your parent's tax preparer or a tax professional can explain how your specific investments will be taxed. The brokerage will send you a 1099 form at tax time showing all dividends and capital gains.

What happens when you turn 18 or 21

The account automatically becomes yours. No paperwork is required in most cases — the brokerage handles the transfer. You receive new account statements in your name alone, and you can log in and trade whenever you want. The custodian has no further rights to the account.

This is permanent and irreversible. Once the account transfers, your parent cannot take the money back or regain control. If there is money in the account that was meant as a gift, this is not a problem. If your parent contributed money they expected to use later, that becomes a family conversation — but legally, the money is yours.

Alternatives if your parent will not open an account

If your parent is unwilling or unable to open a custodial account, you have limited options before 18. Some brokerages offer paper trading or simulation accounts where you practice buying and selling stocks with fake money — no real investment, but you learn how markets work. This costs nothing and requires no adult involvement.

You can also read about stocks, follow companies you are interested in, and build a list of stocks you would buy if you could. Many young investors do this and then execute their strategy once they turn 18 and can open their own account.

A few brokerages have experimented with accounts for minors that do not require a custodian, but these are rare and often come with restrictions. Check directly with brokerages in your area to see what they offer — rules vary by state and change over time.

Frequently Asked Questions

Can I open a stock account at 16 or 17 without a parent?

No. Federal law requires a custodian for anyone under 18. Some states allow 17-year-olds to open accounts without a custodian if they are emancipated, but this is rare and requires a court order. For most people, a parent or guardian must open and manage the account.

What if I want to invest money I earned from a job?

You can earn money and give it to your parent to deposit into your custodial account. The money is yours once it is in the account, but your parent still controls the trades. If you want full control over money you earned, you will have to wait until you turn 18 and can open your own account.

Can my parent take money out of my custodial account?

Legally, no — the money belongs to you, not your parent. However, your parent controls the account while you are a minor, so they can move money if they choose to. This is a trust issue between you and your parent. Once you turn 18 or 21, your parent cannot access the account at all.

Do I have to pay taxes on stocks I do not sell?

No tax is owed on stocks you hold. You only owe taxes when you sell for a profit (capital gains) or when the stock pays a dividend. If a stock goes up in value but you do not sell it, there is no tax bill that year.

What happens to my custodial account if my parent dies?

The account passes to your other parent, a guardian, or whoever is named as successor custodian in the account documents. The money stays yours — it does not become part of your parent's estate. Ask your parent who they named as backup custodian when they opened the account.