How to Invest $100 in 2026: Simple Beginner's Guide (Even If You're Under 18)

Got $100 and want to start investing? This beginner's guide shows exactly how to invest your first $100 in 2026: what to do before you start, how to open an account if you're under 18, where the money can go (high-yield savings, fractional shares, index funds and ETFs, a Roth IRA), why fees matter so much on small amounts, and the mistakes that quietly drain small accounts. CHAPTERS 0:00 Intro 0:45 Before you invest: 3 questions 1:26 Under 18? How to open an account 2:09 Option 1: High-yield savings account 2:49 Option 2: Fractional shares 3:34 Option 3: Index funds and ETFs 4:27 Watch the fees 5:08 Option 4: Roth IRA 5:52 What $100 can become 6:48 5 mistakes to avoid 7:39 A simple $100 plan 8:24 Recap KEY TAKEAWAYS Before investing: pay off high-interest debt (credit cards often charge 20%+), keep a little emergency cash, and only invest money you can leave alone for 5+ years. Under 18? In most states you can't open a regular brokerage account yourself. A parent or guardian can open a custodial account (UGMA/UTMA); it becomes fully yours at the age your state sets, usually 18 or 21. Some brokerages also offer teen accounts for ages 13-17. High-yield savings: the FDIC national average savings rate was about 0.37% in September 2026, while many online high-yield savings accounts paid around 4% in October 2026. Rates change. FDIC insurance covers up to $250,000 per depositor, per insured bank, per ownership category. Fractional shares let you buy a slice of a share, often for as little as $1-$5 at many big brokerages, and most major online brokerages charge $0 commission on stock and ETF trades. A broad index fund (like an S&P 500 or total stock market fund) spreads $100 across hundreds or thousands of companies. Historically, the S&P 500 has averaged about 10% a year since 1957 (about 7% after inflation), with some years down 20% or more. Past performance doesn't guarantee future results. Fees: some broad index funds charge expense ratios around 0.03% (about 3 cents a year on $100). A $5 monthly account fee would cost $60 a year on a $100 account. Roth IRA: you need earned income, and you can't contribute more than you earned that year. The 2026 IRA contribution limit is $7,500 (or your earned income, if less). Minors with a job can use a custodial Roth IRA opened by a parent. Hypothetical math: $100 growing at 7% a year is about $761 after 30 years and about $2,946 after 50. Adding $25 a month for 50 years at 7% (about $15,100 put in) could grow to roughly $139,000. These are illustrations, not predictions; real returns go up and down. SOURCES FDIC national rates: https://www.fdic.gov/national-rates-a... FDIC deposit insurance: https://www.fdic.gov/resources/deposi... IRS 2026 IRA limit: https://www.irs.gov/newsroom/401k-lim... Investor.gov (SEC) index funds: https://www.investor.gov/introduction... Investor.gov (SEC) expense ratios: https://www.investor.gov/introduction... Disclaimer: This video is for educational purposes only and is not financial, investment or tax advice. Everyone's situation is different. Investing involves risk, including loss of principal, and nothing in this video is a guarantee of future returns. Rates, limits and rules change, so check current information for your situation. If you're searching for how to invest $100, how to start investing with little money, investing for beginners, or investing for teens, this video walks through it step by step: how to buy fractional shares, index funds for beginners, the best way to invest $100 in 2026, opening a custodial account or custodial Roth IRA, high-yield savings accounts, and how compound interest works. Made for high school and college students and anyone starting with their first $100. If this helped, subscribe for more videos about money and investing, and tell me in the comments what you're doing with your first $100. #investing #investingforbeginners #personalfinance #moneytips #stockmarket