The number that actually tells you where you stand
Most conversations about money focus on income — how much someone earns per hour, per year, per paycheck. But income alone doesn't tell you how financially healthy someone is.
A person who earns $200,000 a year and spends $210,000 is in a worse financial position than someone who earns $40,000 and saves $8,000 of it. Income is what flows in. Net worth is what accumulates.
Net worth is the single number that best captures your true financial position, and it's not complicated to calculate.
The math is straightforward
Net worth = Assets − Liabilities
Assets are things you own that have monetary value:
- Money in a savings account
- Money in a checking account
- Investments (stocks, index funds, Roth IRA)
- The current value of a car you own
- Any other valuables
Liabilities are things you owe:
- Credit card debt
- Student loans
- Car loans
- Any money borrowed from a person
Subtract what you owe from what you own. The result is your net worth.
What does a teenager's net worth look like?
For most teenagers, this calculation is simple. Assets might include a savings account balance and maybe a small investment account. Liabilities are typically zero, since most teenagers don't have debt.
A 16-year-old with $800 in savings, $200 in checking, and no debt has a net worth of $1,000. That's not a lot in absolute terms, but it's positive — they own more than they owe. Many adults can't say that.
If a teenager has borrowed money from a parent or friend, or has a small credit card balance, that reduces their net worth. The calculation still works the same way.
Why a negative net worth isn't shameful (but is worth understanding)
Many young adults entering their 20s have negative net worth. This is common, not a moral failing. Student loans, car loans, and credit card debt can all create liabilities that exceed assets early in adult life.
Understanding net worth helps you see this clearly and make more intentional decisions:
- A student loan is a liability that reduces your net worth today in exchange for earning potential tomorrow — which is a reasonable trade only when the expected income gain justifies the debt
- A car loan might be unavoidable, but a larger loan means a larger liability reducing your net worth
- Consumer debt (credit cards, "buy now pay later" services) reduces net worth without producing any asset in return
These aren't judgments about past choices — they're frameworks for making better future ones.
How net worth changes over time
Your net worth grows in two ways: by accumulating more assets, or by reducing liabilities. The best strategies do both simultaneously.
Every dollar saved is a dollar added to assets. Every dollar of debt paid off is a dollar removed from liabilities. Both increase net worth by $1.
Investing accelerates asset growth because compound returns increase the value of existing assets without additional contributions. A $1,000 investment that grows to $1,100 in a year increased your net worth by $100 without you adding a dollar.
This is why the wealth gap between people who start saving and investing in their teens versus their 30s is so dramatic. It's not just the dollars contributed — it's the years of asset appreciation applied to those contributions.
A practical exercise for teenagers
Calculate your own net worth. It takes about five minutes.
- List every account or asset you own and its approximate value
- List every debt or money you owe
- Add up the assets, add up the liabilities, subtract
If the number is positive: great. Now set a goal to grow it by a specific amount this year.
If the number is negative or zero: that's information, not a verdict. Now you know what you're working with.
Repeating this exercise once a year — not obsessively, just annually — gives you a clear picture of whether your financial life is moving in the right direction. Income might fluctuate. Spending habits might vary. But net worth trending upward over years is the clearest sign that the fundamentals are working.
Finly helps kids and teenagers understand wealth-building, budgeting, investing, and every other real-money concept that gets rushed through in a single semester, for free. Start at learnfinly.com and start tracking what actually matters.
