All lessons
Debt & Credit·1 min lesson
How Credit Cards Actually Work
See what changes when a balance carries interest.
Learn
Play · Apply
Learn
The short version
A credit card is borrowed money. If the full statement balance is paid by the due date, purchases usually avoid interest.
Paying only the minimum keeps the account current but can stretch repayment for years. Interest is calculated from the balance and APR.
A larger payment reduces both time and interest. New purchases can undo that progress.
2 min challenge
Credit Card Trap
You owe $100 on a card. Which choice costs the least interest?
Fictional educational simulation. It does not use your financial information or guarantee an outcome.