Sinking funds for teens to invest in

Teens 13–17 · How-to · Updated October 1, 2026 · LearnLife Editorial

What do you need before starting sinking funds as a teen?

Before creating sinking funds for investing, you need three key things: a clear investment goal, a safe place to save your money, and a way to track your progress. First, decide exactly what you want to invest in—such as buying your first stock, investing in a mutual fund, or opening a custodial investment account with a parent or guardian. Next, choose where you will keep your sinking fund money. This could be a dedicated savings account or a custodial investment account where the money is kept separate from your regular spending money. Using a separate account helps avoid accidentally spending your savings. Finally, prepare a tracking method—a notebook, a spreadsheet, or a money management app—to record how much you save each week or month and monitor your progress toward your goal. Having these ready before you start will make saving easier and more organized.

What are the steps to set up sinking funds for teens to invest in?

1. Pick a specific investment goal Decide what you want to save for in your sinking fund. Examples include buying fractional shares of stock, investing in a low-cost mutual fund, or building money to open a custodial brokerage account. Clear goals help you stay focused.

1. Find out the minimum amount needed Research how much money you need to start investing. For instance, some apps let you begin investing with $50, while others may require $100 or more. Knowing this number tells you how much you need to save.

1. Open a dedicated savings or custodial account Since you are under 18, you will likely need a parent or guardian to help open a custodial investment account or a savings account linked to you. This keeps your sinking fund money safe and separate from your spending money.

1. Set a deadline for your goal Choose when you want to have your sinking fund fully saved—like six months, one year, or longer. A timeline gives you a target and helps with budgeting.

1. Calculate how much to save regularly Divide your total savings goal by the number of weeks or months until your deadline. For example, if you want $300 in six months, save about $50 each month. Adjust this if your income varies.

1. Put money into your sinking fund regularly Every week or month, transfer the planned amount into your sinking fund account. Use exact phrases like “Transfer $12 this week to sinking fund for stock purchase” to stay clear about your action.

1. Track your progress consistently Record each deposit and the total saved so far in your notebook or app. Review your progress monthly to see if you’re on track.

1. Adjust your plan if needed Life happens—if you miss a saving period, don’t give up. Instead, recalculate how much to save going forward or extend your deadline. For example, if you miss saving $50 one month, you might add an extra $10 the next five months.

How can you tell if your sinking fund strategy worked?

You will know your sinking fund plan worked if you reach your savings goal by your deadline and have enough money to make your first investment. For example, if your target was $300 to buy fractional shares, you should have that amount saved and ready to invest. Another sign is that saving feels routine and easier each time, showing that you have developed a steady habit. Also, if you feel confident discussing your savings and investment plans with parents or friends, your strategy is helping you build money skills. If you can invest without stress or last-minute scrambling, that means your sinking fund worked well.

What should you do if your sinking fund plan doesn’t work out?

If you don’t meet your savings goal on time, start by reviewing what caused the shortfall. Did you spend the sinking fund money on something else? Did you save less than planned? Once you identify the reason, create a new plan. For instance, extend your timeline to save more gradually, or increase the amount saved when you can. Setting reminders or automating transfers (with a parent’s help) can reduce missed deposits. Don’t hesitate to ask a trusted adult for support or advice if you feel stuck. Remember, learning to save is a skill built over time, and adjusting your plan is part of success.

How can teens adapt sinking funds for their unique needs?

Teens often earn money in irregular amounts from chores, allowances, or part-time jobs. Instead of fixed monthly savings, consider saving a percentage of every payday or gift—like 20% of each amount you receive. This way, your sinking fund grows steadily without strict deadlines. You can also create multiple sinking funds for different goals, such as one for investing and another for emergencies. Using teen-friendly money apps can help track multiple funds easily and provide reminders. Involving a parent or guardian is helpful for account setup and guidance. This flexible approach respects your changing income and builds responsibility.

What are some practical sinking fund goals for teens interested in investing?

Here are examples of sinking funds you can create as a teen:

• First stock investment: Save $50–$200 for buying fractional shares through a teen-friendly investment app.
• Mutual fund investment: Save enough to meet the minimum investment, often $500 or less with some accounts.
• Opening a custodial brokerage account: Save to cover any account minimums or fees that might apply.
• Financial education: Save to buy books, online courses, or workshops about investing.
• Emergency fund: Save $100–$500 as a backup to protect your investments from unexpected expenses.

For example, if you earn $40 from babysitting, try saving $8 (20%) toward your sinking fund for stocks. Over five weeks, that’s $40 toward your investment goal. Breaking big goals into small, regular savings makes investing more achievable.

How do sinking funds help teens build investment habits?

Sinking funds teach you how to plan, save, and delay spending, all important investing habits. By regularly setting money aside, you practice budgeting and goal-setting, skills investors use daily. You learn to research costs and timelines, making investing less confusing. This helps you resist impulse spending and understand the value of patience. Over time, sinking funds build confidence and money management skills that make investing feel natural and manageable. These habits can lead to smarter financial decisions throughout life.

For more detailed ideas on sinking funds and investing, see the articles about sinking funds for students to invest in and investment accounts suitable for teens.

Frequently asked questions

Can I start a sinking fund with just a little money?

Absolutely! Even saving small amounts like $5 or $10 regularly adds up over time. The key is consistency, so start with what you can and build from there.

Do I need a parent to open an investment account?

Usually yes. Since you’re under 18, most investment accounts require a parent or guardian to open a custodial account that they manage with you until you’re an adult.

How often should I add money to my sinking fund?

Whenever you get money, like from allowance, chores, or a job, try saving a part of it. Weekly or monthly savings work well if your income is regular.

What if I don’t know which investments to pick?

Use your sinking fund to save while you learn. Read beginner guides, ask parents or teachers, and explore teen-friendly investment apps that offer education and low-risk options.

Can sinking funds help me save for emergencies too?

Yes. Having an emergency sinking fund protects your investing money by covering unexpected expenses, so you won’t have to sell investments early.