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Sector 04Asteroid Belt

Interest, APR & Debt Traps

"Debt isn't always bad — but some debt is designed to trap you."

CFPB: Credit cost awarenessMyMoney Five: BORROWCEE Standards: Managing CreditFDIC Money Smart: Responsible borrowing & loan comparison

Why It Matters

Not all debt is equal. A mortgage can build wealth. A student loan can be a good investment. But payday loans and "Buy Now, Pay Later" schemes can spiral into financial ruin shockingly fast. Understanding APR — the true annual cost of borrowing — is the skill that lets you tell the difference between useful debt and a trap.

Key Concepts

Interest

The cost you pay to borrow money, usually expressed as a percentage of the amount borrowed.

Example

Borrow $1,000 at 10% annual interest — you owe $100 in interest at the end of the year.

APR (Annual Percentage Rate)

The true yearly cost of a loan, including interest AND fees. Always compare APRs — not just the interest rate — when evaluating debt.

Example

A payday loan might advertise a $15 fee per $100 borrowed for 2 weeks. That's 391% APR — far higher than a credit card's 20%.

Predatory Lending

Loan products designed to trap borrowers in cycles of debt through extremely high interest rates, hidden fees, or deceptive terms.

Example

Payday loans, rent-to-own stores, and certain car title loans often target people who need money urgently and charge enormous rates.

Buy Now, Pay Later (BNPL)

Services that split purchases into installments, often with no interest — but with fees and penalty rates if you miss payments.

Example

Using BNPL for a $200 purchase feels affordable in 4 payments of $50. But if you use it for 10 purchases at once, you could owe $2,000 in surprise installments.

Debt-to-Income Ratio (DTI)

Your total monthly debt payments divided by your gross monthly income. Lenders use this to determine if you can take on more debt responsibly.

Example

If you earn $3,000/month and pay $900/month in debt, your DTI is 30%. Most lenders want this below 36%.

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Did You Know?

The CFPB found that the average payday loan APR is around 400%, and borrowers typically roll over their loans 8 times — meaning they pay more in fees than the original loan amount.

Source: CFPB — Payday Loans and Deposit Advance Products

Quick Tips

Always calculate the APR — not just the monthly payment — before taking any loan.
If a lender won't tell you the APR upfront, walk away.
BNPL is only safe if you track every installment and never use it for purchases you couldn't afford outright.
Build your emergency fund specifically to avoid needing payday loans in a crisis.

Learning Objectives

  • 01.Calculate basic interest impact
  • 02.Compare APRs
  • 03.Identify predatory lending practices
  • 04.Evaluate "Buy Now, Pay Later" risks

Standards Alignment

FrameworkCompetency Area
CFPBCredit cost awareness
MyMoney FiveBORROW
CEE StandardsManaging Credit
FDIC Money SmartResponsible borrowing & loan comparison

Official Resources

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