The Complete Guide to Best Investments for Young Adults: Building Wealth from Your 20s

When you’re navigating your financial journey as a young adult, figuring out where to put your money can feel overwhelming. But here’s what financial experts consistently agree on: The best investments for young adults aren’t complicated, and you don’t need a fortune to start. In fact, young investors who begin early—even with small amounts—gain an advantage that money alone can’t buy: time. According to Fidelity’s research, nearly half of all young people now actively use banking apps and about four in ten have begun their first jobs. Yet here’s the disconnect: while 91% say they plan to invest eventually, most haven’t actually started. The barriers? A mix of confusion, perceived complexity, and uncertainty about where to begin.

The good news is this guide exists specifically to change that narrative. Whether you’re 18 and just stepping into adulthood or you’re in your late 20s looking to level up your investment strategy, we’ll walk through the best investments for young adults—and show you exactly how to get started.

Seven Investment Options Young Adults Should Consider

When it comes to building wealth, diversification isn’t a luxury—it’s a strategy. Here are the core investment vehicles that make sense for young adults at various risk tolerance levels.

1. Individual Stocks: Direct Ownership, Direct Returns

Stocks represent fractional ownership in companies, and they’ve historically outperformed most other asset classes over extended periods. For young adults, stocks offer several compelling advantages:

Why stocks matter for your portfolio:

• Higher long-term return potential compared to bonds or savings accounts
• Emotional connection—you’re more likely to stay invested in companies you believe in
• Tax-efficient growth in the right account types
• Ability to reinvest dividends for compound growth

Consider this powerful example: Over the past 25 years, the S&P 500 delivered roughly 4.5x returns based on price appreciation alone. But when you factor in dividend reinvestment, that same investment grew more than 7x. That’s the compounding effect working in your favor.

The sweet spot for young adult investors? Focus on quality companies with both growth potential and dividend payments. This dual approach generates returns from two sources simultaneously—capital appreciation and regular income distributions.

Getting started with stocks: Most modern brokerages now allow fractional share purchases, meaning you can start with as little as $1 or $5. This democratization of investing has removed one of the biggest barriers for young adults.

2. Mutual Funds: Diversified Pools of Capital

Here’s a scenario every investor fears: You invest $10,000 across four stocks. One company fails completely. Suddenly you’ve lost 25% of your entire investment overnight. This is why mutual funds exist.

Mutual funds pool money from thousands of investors and deploy it across dozens or even hundreds of securities. Want to own a piece of the entire S&P 500? You can do it with a single mutual fund purchase.

The diversification advantage: By spreading capital across many holdings, you reduce the impact of any single company’s failure. It’s not about avoiding losses entirely—it’s about ensuring one mistake doesn’t derail your long-term plan.

Mutual funds come in two flavors:

Actively managed funds employ professional managers who research stocks and attempt to beat benchmark indices. They come with higher expense ratios but offer the potential for outperformance.

Passively managed (index) funds simply track a benchmark like the S&P 500, charging significantly lower fees. Computer algorithms do the rebalancing, which is why these funds cost less to operate.

For young adults just starting out, index funds offer a compelling proposition: automatic diversification, minimal fees, and the documented track record of the entire market working in your favor.

3. Exchange-Traded Funds (ETFs): Flexibility Meets Diversification

ETFs operate similarly to mutual funds in that they hold diversified baskets of stocks, bonds, or other assets. But they’ve become the preferred choice for many young adult investors due to key differences:

• Intraday trading: Unlike mutual funds that price once daily, ETFs trade continuously throughout the market day, allowing you to act on market movements in real-time
• Lower costs: Most ETFs are index-based, resulting in expense ratios that beat comparable actively managed mutual funds
• Transparency: You can see ETF holdings daily instead of waiting for quarterly reports
• Tax efficiency: ETF structure creates specific tax advantages compared to mutual funds

For young adults building their first portfolio, ETFs provide the flexibility of stocks with the diversification of funds. It’s an elegant combination.

4. Bonds: Lower Risk, Lower Return

If stocks are the growth engine of a young adult’s portfolio, bonds are the stabilizer. A bond is fundamentally a loan you’re extending to a government entity or corporation. In exchange, they pay you back with interest, typically every six months.

Bonds typically deliver lower returns than stocks but with substantially less volatility. They’re insurance against the rough years that all equity portfolios experience.

Why young adults often overlook bonds: Individual bonds are complex to research and purchase. You’re better off accessing them through mutual funds or ETFs, where you gain exposure to hundreds of bonds simultaneously.

Special bond opportunity for young adults: Savings Bonds The U.S. Treasury offers Series EE and Series I savings bonds through TreasuryDirect.gov. These have no fees and offer unique guarantees:

• Series EE: Guaranteed to double over 20 years
• Series I: Inflation-indexed, protecting your purchasing power during inflationary periods

One catch: You must be at least 24 to purchase them yourself, so younger adults need to receive them as gifts.

5. High-Yield Savings Accounts: Safety with Returns

While not flashy, high-yield savings accounts deliver 20-25x higher returns than traditional savings products at major banks. Here’s what you get:

• Interest rates typically ranging from 4-5% annually
• Federal Deposit Insurance Corporation (FDIC) protection up to $250,000
• Immediate access to your money whenever needed
• Zero risk of principal loss

The tradeoff: Growth is modest compared to stocks or bonds. But for an emergency fund or money you’ll need within 12 months, these accounts are nearly impossible to beat on a risk-adjusted basis.

6. Certificates of Deposit (CDs): Fixed Terms, Fixed Returns

CDs require you to lock up money for a specific duration—typically 3 months to 5 years. In exchange for this commitment:

• You receive a guaranteed interest rate higher than savings accounts
• Your principal is FDIC-insured
• Interest compounds predictably

When CDs make sense: You have a specific financial goal (car down payment, travel) with a known timeline, and you want to earn extra returns on cash you won’t touch.

Important caveat: Early withdrawal triggers penalties that can eliminate years of interest earned.

7. Investing in Yourself: The Highest ROI

This might sound cliché, but investing in your own skills, education, and experiences often delivers the highest return on investment for young adults.

Whether that’s starting a side business, developing new technical skills, or gaining experience through strategic career moves, self-investment compounds over decades. A young adult who invests $2,000 building a digital skill that increases earning power by $10,000 annually has created value that investing could take years to match.

Investment Accounts: Which Container for Which Asset?

Now that you know what to invest in, you need to know where. Investment accounts are the containers that hold your assets and determine tax treatment. For young adults, several account types merit serious consideration.

Individual Brokerage Accounts: Complete Control

An individual brokerage account is the simplest structure: You own the account outright, make all decisions, and have full responsibility.

Available assets: Stocks, ETFs, mutual funds, bonds, cash

Best for: Young adults with earned income who want maximum flexibility and control

Tax consideration: All gains and dividends are taxed in the year they occur

Joint Brokerage Accounts: Shared Decision-Making

A joint account involves two or more people sharing ownership and decision-making authority. While commonly used between spouses, they work well for young adults and mentoring parents or grandparents.

Available assets: Stocks, ETFs, mutual funds, bonds, cash

Best for: Young adults wanting parental guidance without surrendering control

Custodial Accounts (UGMA/UTMA): Guardianship Structure

Custodial accounts allow an adult to manage assets on behalf of a beneficiary until they reach the age of majority (usually 18-21, sometimes 25).

• UGMA (Uniform Gifts to Minors Act): Financial assets only
• UTMA (Uniform Transfers to Minors Act): Financial assets plus property like real estate

These structures work well for young adults still relying on parental support but wanting exposure to market investment.

Available assets: Stocks, ETFs, mutual funds, bonds, cash, annuities, insurance policies

Custodial IRA: Tax-Advantaged Retirement Savings

If a young adult has earned income from a job, they can open a Custodial IRA—a retirement account managed by a parent or guardian.

Traditional IRA: Contributions are tax-deductible now, but withdrawals face taxes later

Roth IRA: Contributions use after-tax dollars, but growth and withdrawals are completely tax-free

2025 contribution limits: $7,000 annually for those under 50 (higher age limits allow an additional $1,000 catch-up contribution)

The power of a Roth IRA opened at age 18 with consistent contributions is staggering. Fifty years of tax-free growth can turn $7,000 annual investments into several million dollars.

529 College Savings Plans: Education-Specific Growth

If you’re a young adult saving for a child’s education, or if your parents opened one for you, 529 plans offer tax-free growth for qualified education expenses.

Contributions grow tax-free, and qualified withdrawals for tuition, room and board, and student loan repayment face no taxation. Many states also offer income tax deductions for 529 contributions.

Available assets: Mutual funds, index portfolios

Coverdell ESAs: Flexible Education Accounts

These work similarly to 529s but with more flexibility on what qualifies as “education expenses”—including elementary and secondary school costs, not just college.

Contribution limit: $2,000 annually per beneficiary

Available assets: Mutual funds, cash

Quick Comparison: Matching Your Goal to Your Account

Starting Your Investment Journey: Practical Next Steps

How much do I need to start?

With fractional share availability at most modern brokerages, you can literally start with $1-5. The question isn’t “can I afford to start?” but “what’s stopping me from starting today?”

How do I choose which account type?

Start by asking:

1. Do I have earned income? (If yes, Roth IRA is powerful)
2. Am I saving for a specific goal? (If education, consider 529/Coverdell)
3. Do I want full control or parental guidance? (Individual vs. custodial vs. joint)

What happens when I turn 18 or 21?

All the guardrails come off. Custodial accounts transfer to your control. You gain access to every investment vehicle available to adults. Young adult investors at this threshold should view it as a transition point where you’ve already built investing habits and knowledge over several years.

The Bottom Line on Best Investments for Young Adults

The best investments for young adults share one critical characteristic: they’re started early. Whether your focus is stocks for growth, bonds for stability, or diversified funds for peace of mind, the key variable isn’t which specific investment you choose—it’s that you choose something and begin.

Young adults have an asymmetric advantage: time. Every year you delay costs you not just that year’s returns, but the compound growth those returns would have generated for decades. The difference between starting at 20 versus 25 is often $100,000+ by age 65.

Your investment journey doesn’t need to be complicated. Begin with diversified ETFs in a Roth IRA if you have earned income. Add individual stocks for companies you believe in. Build an emergency fund in a high-yield savings account. These three steps position most young adults for long-term financial success.

The best investment you can make as a young adult? Starting today, with whatever amount you can manage, in whatever account structure matches your situation. Perfection is the enemy of progress. Your future self will thank you for beginning now.