These Teenagers Know More About Investing Than You Do

Seventeen-year-old Sophia Castiblanco doesn’t just drive a Tesla . She also owns shares of the company .

Sophia, a high school junior in the Chicago suburbs, invests in stocks such as Tesla, Apple and Amazon.com. When she started making money as a social-media content creator three years ago, her parents encouraged her to put some of her earnings in investments likely to grow over time, rather than parking all her cash in a savings account .

She now has several thousand dollars invested in accounts set up by her father at Charles Schwab, Edward Jones and Robinhood . Last year, she saved up money to buy a new Tesla Model 3, which starts at around $40,000, through a payment plan she is splitting with her parents. On TikTok, Instagram and YouTube, she makes videos teaching her thousands of followers about investing basics.

“I’ve always had a business mindset of wanting to make money, and I’m very OK with taking risk,” Sophia said. “There’s really no minimum age to start.”

Sophia is one of many teenagers jumping into the U.S. stock market. Teens generally can’t open their own brokerage accounts until they turn 18, but adults can set up custodial accounts for minors. The accounts are turned over to the children when they reach legal age.

Custodial accounts for teens at Schwab totalled nearly 200,000 in 2022, up from about 120,000 in 2019, according to the company. They jumped above 300,000 in 2023, thanks in part to Schwab’s integration of TD Ameritrade. Other brokerages, including Vanguard, Fidelity and Morgan Stanley’s E*Trade, also reported a surge in custodial accounts in recent years.

Some teens ask their parents to open accounts—and share the login information—at brokerages such as Robinhood that don’t offer custodial accounts. At smaller financial apps such as Greenlight, teenagers are investing more money than ever before. They invested $20 million in 2023 using the Greenlight app, up from around $10 million in 2021.

A Fidelity study on teens and money recently estimated that about a quarter of teenagers in the U.S. have started investing, based on an online survey of 2,081 respondents ages 13 to 17. Trades placed using Fidelity’s Youth app, an account opened by parents but owned by teens, jumped in the fourth quarter.

Many teenagers opened up their accounts during winter break while off from school, said Kelly Lannan, a senior vice president at Fidelity.

The boom in teen trading is part of a wider rush to financial markets among Americans since the start of the Covid-19 pandemic. Stocks rocketed higher , drawing hordes of newbie investors trying to profit from the big gains.

Many of those new investors have since ditched the meme stocks that soared during that era but have remained invested, sending the share of Americans who own stocks to an all-time high.

Stocks are back at record levels, with the Dow Jones Industrial Average recently topping 38000 and the S&P 500 eclipsing 5000 for the first time. Since the start of 2020, when an unprecedented trading boom among rookie investors kicked off, the S&P 500 has soared around 55%.

“There’s just more and more awareness that the sooner you start, the better things are,” said James Martielli, head of investment and trading services at Vanguard.

Martielli said he opened custodial accounts for his three children more than a decade ago when they were toddlers. At Vanguard, there has been a jump in custodial IRAs, a type of retirement account.

The biggest advantage is time. Setting aside $10 a week for a child at birth would leave an 18-year-old with a roughly $20,000 nest egg, assuming an 8% annual return, according to the investing app Stash, which offers custodial accounts. Left until the investor turned 70, and assuming annual growth of 8%, that sum would mushroom to about $1 million.

Of course, these returns can be shaped by many factors, including when an investor buys in and how stocks end up doing. The S&P 500 has recorded a 10% annualised total return over the past three decades, according to Dow Jones Market Data through the end of 2023. Buying an S&P 500 index fund at the peak of the dot-com bubble in 2000 would generate an annualised total return of around 7%, while buying at the low of the financial crisis in 2009 would lead to a roughly 16% annualised total return.

Hot tech stocks

Brokerage executives say that technology behemoths that are ubiquitous in the lives of teens are often some of the most widely held shares. At Vanguard, U.S. stock index funds are particularly popular in custodial accounts.

Mahanth Komuravelli, 16, has a small chunk of his roughly $7,000 portfolio in an S&P 500 index fund, while most of his positions are in big companies such as Amazon and Advanced Micro Devices. He is exploring buying some small-cap stocks such as education company Chegg . Mahanth uses a Fidelity Youth Account that his father helped him open. The two often discuss investment ideas.

“Sometimes he asks me for advice,” said Mahanth, a high school junior in Edison, N.J.

Kaida Benes, a 13-year-old from the suburbs of Minneapolis, has been stashing money—earned from household chores such as doing the dishes or cleaning the bathroom—in an investment account on Greenlight that now has about $1,000 in it.

She’s also been drawn to bigger companies and has invested in tech stocks such as Apple, Alphabet and streaming companies Disney and Netflix . At times, she has been on edge about potential losses. She says her mother has helped her stomach the volatility.

“Stocks go up and down. It’s fine, it just happens,” Kaida said she’s learned.

She has been hunting for other opportunities to make money to pour into savings or investments. She recently found a recliner chair at a yard sale and enlisted her parents to help fix it up and flip it for a profit on Facebook marketplace, she and her mother, Renee Benes, said.

“I like having money,” Kaida said.

Renee Benes said she was frustrated that she didn’t learn about investing until a year or two ago, when she was well into her 30s. Benes, who’s an online influencer, wanted her daughter and son to be more financially savvy.

Lessons learned

Many young investors are starting to invest earlier than previous generations did. Almost two-thirds of Gen Z investors said they first started learning about investing in high school or middle school, compared with about 38% of millennials in a 2023 Bank of America survey of affluent individuals. Some are introduced to stocks through family members or teachers, while others have turned to social media.

Felix Peng, a 17-year-old in the Los Angeles area, said he has learned a lot about investing from YouTube and Instagram—but that some social-media stars promote riskier trading strategies that seem more like gambling. He said it is a red flag when influencers try to sell expensive trading courses that promise investors they will make a lot of money quickly.

Still, Felix believes it is beneficial for young people to learn from their mistakes when they have less money to lose. His investments in Apple, Meta Platforms and Alphabet have performed well. But when he bought shares of Teladoc around their peak and watched them tumble, he saw how tough it is to time the market. He has about $1,000 in a custodial account on Stockpile, an investing app geared toward parents and children.

“It’s a great lesson and I’m glad I learned,” Felix said.

Seventeen-year-old Rachael Kim in Orange County, Calif., traded shares of AMC Entertainment Holdings during the meme-stock era and said she made a roughly 300% profit.

“For a little while, I got addicted to that adrenaline,” Rachael said of day trading. “But as I began researching more, I realized it was highly unlikely to continue that aggressive profit.”

Rachael said she started studying investing to help her parents, who are immigrants, prepare for retirement. Now she regularly invests about half of the money she makes—from creating social-media content, working as a cashier and teaching at her church—in index funds tracking the S&P 500 and tech-heavy Nasdaq-100. She has about $10,000 in her custodial Roth IRA at Fidelity.

“Since we’re young, we have the privilege of seeing our investment compound,” Rachael said. “The biggest lesson would be to start early.”

Happy is the family whose members—parents, grandparents and grown children—trust each other enough to cooperate on shared goals, especially financial ones. When that is truly the case, Uncle Sam’s tax rules can help as well.

This matters especially now that mortgage rates are above 7%, and many families are looking for ways to help younger members. If the elders have resources and are confident younger ones can cooperate, a family loan could make homeownership possible while providing the elders with a useful income stream.

Other strategies can actually lower taxes, such as when funding 529 plans or Roth IRAs, or when someone inherits a traditional IRA with required withdrawals larger than they will need.

Here are three strategies useful for functional families.

Intrafamily loans

It is perfectly legal for families to lend money to a relative for a down payment or even a private mortgage.

But it is important not to cut corners, says Ryan McKeown, a CPA with Modern Wealth Enhancement in Minnesota. If the loan is for a down payment, be honest with the mortgage provider and have a formal agreement. The lender owes tax on the interest payments received.

If the loan is for a private mortgage, both sides should have legal representation with a formal written agreement, including payment terms. The lender owes tax on the interest, and the borrower often can deduct it if he or she itemizes.

To avoid IRS trouble, the interest rate shouldn’t be lower than the agency’s Applicable Federal Rate at the time of the loan. Currently that is about 5% for loans longer than nine years; about 4.5% for loans three to nine years; and about 4% for loans three years or less. Currently, traditional mortgage rates are generally above 7%.

In addition, the lender could use the $19,000 annual gift-tax exemption (described below) to forgive some or all of the interest or principal annually. If both lenders and borrowers are married, that is up to $76,000 a year. There is no tax for the borrower on such forgiveness, because it is from a gift.

If you’re going this route, McKeown advises against having a fixed plan to forgive the debt. Instead, do it in one-off letters specifying the amount—and keep careful records. Otherwise the IRS might try to treat the loan as a taxable gift.

Asset gifts

Powerful tax-saving moves for families often use gift-tax provisions. Under current law, anyone can give anyone else up to $19,000 of assets annually, free of gift tax. That means a married couple with three grandchildren could give them a total of $114,000 in 2026.

The gifts can be cash or other assets, like stock. For noncash gifts, the cost basis—which is the starting point for measuring taxable gain after a sale—“carries over” to the recipient. So if someone buys $1,000 of stock and gives it away when it is worth $5,000, the recipient’s cost basis is $1,000. If the recipient later sells the shares for $8,000, the taxable gain is $7,000.

Here’s an example showing how gifts could save a family taxes. Grandma is a widow of modest means, while her child and spouse have prospered. The couple has two children, and they want to contribute $5,000 to a 529 college-savings plan for each—but they need to sell stock to do it. Their tax rate on the sale would be 18.8%, and they would need to sell about $11,000 of stock.

However, Grandma’s federal tax rate on the stock sale is 0%. If the couple gives $10,000 of shares to Grandma, she could sell them, pay no tax, and fund the grandchildren’s 529 plans. This saves about $1,000 of tax.

These moves are legal, and they could be used in other ways, such as to help a young person fund a Roth IRA.

But trust among family members is essential: Under the law, givers can’t put conditions on a gift. Grandma could use her stock proceeds to take a cruise, but she makes 529 contributions instead.

Mark Sellner, a retired tax attorney and CPA living in Sarasota, Fla., uses this strategy. His children sell stock he gives them and fund 529 plans for his grandchildren.

The family’s tax savings aren’t huge, but he likes other benefits. The sales by his children don’t boost his adjusted gross income, which in turn could raise his Medicare Irmaa premiums or his 3.8% surtax on net investment income.

Sellner doesn’t worry about his children using the funds for another purpose.

“There can’t be any strings attached to gifts. Of course, it is up to us to decide whether to make them in the future,” he says.

Two caveats: The “kiddie tax” applies to most children under age 24, and it is levied at the parents’ rate on investment income above $2,700 in 2026. Consider this before making gifts to a young person.

Investors who give away stock also forgo the step-up, an important provision that exempts assets held at death from capital-gains tax.

Sellner knows he’s losing a step-up, but says, “The children could use a little more now. Why should they wait 20 years to get it?”

Disclaimers

A disclaimer is a highly useful strategy in which one heir renounces an inheritance in favor of another heir. Assuming family members cooperate, this can save taxes.

Here’s one example. Dad died and had a large traditional IRA that he left to Mom. She has enough assets and income to cover her expenses, and she lives in a state with a stiff estate tax. The inherited IRA would put her estate over the threshold.

Also surviving are three young-adult children. If Mom disclaims all or part of Dad’s IRA within nine months of his death, that amount could go directly to the children. They will have 10 years to empty the account, and the family as a whole will likely save estate and income taxes.

Disclaimers have many key details, especially regarding beneficiary documents. Although heirs have great freedom in choosing what assets to disclaim, the rules about who gets disclaimed property are rigid. It is best if the original owner names tiers of heirs so that if one disclaims, the next recipient is clear.