How banks actually work (and why your money is safe)
Banks aren't piles of cash in a vault. They're regulated, insured, and pay you for keeping money there.
When you deposit money at a bank, the bank lends some of it out (mortgages, car loans, business loans) and keeps the rest available for you. They make money on the spread. You get safety, ATM access, and a tiny bit of interest.
Two account types every teen should know
- •CHECKING — for spending. Comes with a debit card. Pays almost no interest.
- •SAVINGS — for storing. Pays interest. Limit on monthly transfers (sometimes).
$250,000
FDIC insured per depositor, per bank
If your bank fails, the federal government replaces your money up to $250k — it's never happened that an FDIC-insured deposit was lost.
Your routing & account numbers
- •ROUTING number — identifies the bank (9 digits, same for everyone at that bank).
- •ACCOUNT number — identifies YOU at that bank.
- •These two together let employers direct deposit your paycheck.
Online banks (Ally, Marcus, SoFi, Discover) often pay 3.75–4.25% APY while big-bank savings pays 0.01%. Same FDIC insurance, way more interest.
Real life: meet Maya, 16, opens her first checking
Maya needs a checking account for her summer job's direct deposit. Her parent helps her open a free student checking at a credit union. She gets a debit card, sets a $20/week auto-transfer to a HYSA, and earns $10 in interest her first year.
$0 fees · $10 first-year interest · ~4.0% APY on HYSA
Takeaway
Banks are tools. Use a free checking for spending, an HYSA for saving, and check that both are FDIC (or NCUA at credit unions) insured.
How much of your money is FDIC insured per bank?
Takeaway: Knowing the difference between checking and savings — and what FDIC actually means — removes most of the mystery around banks.
Try together: Visit FDIC EDIE together (edie.fdic.gov) and walk through what would happen to a hypothetical $300k spread across two banks vs one.