Run your own numbers.
The same calculators used in the sessions. Every default comes from the numbers engine, so they are current — and every one of them is editable.
Sessions 2, 4, 7 Student, car or mortgage — it is the same machine. Watch what extra payments do.
Any installment loan — student, car, or mortgage. It's the same machine.
$
% APR
years
Monthly payment
$694.93
What you hand back
$83,392
152% of what you borrowed · $28,392 of it is interest
What extra payments do
| Strategy | Saves | Costs | Off the term |
|---|---|---|---|
| One extra payment, month 1 | $989 | $695 | 2 mo |
| A full first year extra | $10,113 | $8,339 | 26 mo |
| +10% every month | $4,304 | $7,227 | 16 mo |
| +$100 every month | $5,793 | $9,800 | 22 mo |
Interest is charged on what you still owe — so a dollar paid early removes more interest than the same dollar paid late.