Payday Loans - The 400 Percent APR Trap cover
Payday Loans - The 400 Percent APR Trap preview
Payday Loans - The 400 Percent APR Trap preview
Payday Loans - The 400 Percent APR Trap preview
Personal Finance · Unit 5: Loans and Debt · Complete Toolkit

Payday Loans - The 400 Percent APR Trap

Quality reviewed September 2026

Quick facts
Grades
Grades 9-12
Time
About two 50-minute class periods
Includes
11 ready-to-teach files
Format
Word (.docx) · PowerPoint (.pptx)
What's inside
  • Slide deck
  • Guided notes
  • Guided notes teacher key
  • Activity + answer key
  • Quiz + answer key
  • Exit ticket + answer key
  • Teacher guide
  • Teacher presentation notes
Jump to download ↓
Fits: Personal Finance, Financial Literacy, Consumer Math · grades 9-12

What students do

  • Convert a $45 flat fee on a $300 payday loan into an APR using APR = (Fee/Loan) x (365/days) x 100
  • Compare their calculated APR against a credit card's 24% and a personal loan's 11% on a bar chart
  • Calculate the cost of five loan rollovers, where fees pile up while the principal never shrinks
  • Recommend a cheaper alternative to a borrower and defend it with a calculated APR

What it covers

  • The APR formula, APR = (Fee/Loan) x (365/days) x 100, applied to a real payday loan's flat fee
  • How a payday loan's short term is what inflates a modest-looking flat fee into a triple-digit APR
  • The rollover trap, where fees keep piling onto a principal that never actually shrinks
  • Credit union small-dollar loans and emergency funds as real alternatives to a payday loan

Learning targets

  • Define payday loan, title loan, APR, flat fee, and the debt cycle
  • Convert a payday loan's flat fee to an APR using APR = (Fee / Loan) x (365 / days) x 100
  • Read a bar chart that compares a payday loan's APR to a credit card and a personal loan
  • Explain how the rollover debt cycle traps borrowers and name safer alternatives

Peek inside

straight from the files you download
From slide 3: The 400% APR Trap

It looks cheap

Marcus borrows $300 and owes $345 in 14 days - 'just a $45 FEE'

The store quotes a FLAT FEE in dollars, never an interest rate

$45 on $300 for two weeks 'feels' small and fast

So borrowers sign without knowing the true yearly cost

Guided notes that pair with that slide

It Looks Cheap

Marcus Bell borrows $300 and owes $345 in 14 days - the store calls it "just a $45               ."

The store quotes the cost as a FLAT FEE in dollars, never as an interest               , so the loan feels small and fast.

It Is Really ~391% APR

Converted to a yearly rate, Marcus's $45 fee on a $300 loan for 14 days is really about a               % APR.

That is about 16 times a credit card (~24%) and 36 times a personal                (~11%).

From the activity

1. A small, short-term loan due on your next payday, with a flat fee that looks small but hides a very high APR, is a                                  .

Why this matters

A $45 fee on a $300 loan sounds like a manageable flat cost, which is the exact assumption this lesson exists to correct before a student ever signs for one. Run that same fee through the real APR formula on its actual 14-day term and it lands close to 400 percent, next to a credit card's 24 and a personal loan's 11 on the same chart.

The number that actually changes minds is what five rollovers do to a $300 loan, since the fees keep stacking while the original principal never moves an inch. I would rather a student do that math on paper in my classroom than learn it by watching a paycheck disappear into a fee that never touches what they actually owe.

From one teacher to another

Every year I get a student who thinks a "$45 fee" sounds like a fair price for borrowing $300, and this lesson exists to correct that math before they sign anything. We walk through the actual formula, APR = (Fee/Loan) x (365/days) x 100, on a real $300 loan with a 14-day term, and students work the fee into an annualized rate themselves before checking it against a credit card and a personal loan on the comparison chart. Then we track what happens when the same loan gets rolled over five times, with students totaling the fees paid against the principal that never actually shrinks, which is usually the calculation that makes the lesson land, followed by a look at credit union small-dollar loans and emergency funds as the way out.

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