Your loan

Change anything — every number, chart, and table below updates instantly.

Payments recur monthly on this day of the month.

One-time extra payments

Apply extra principal on specific dates — a bonus, a tax refund, an inheritance.

Scenario comparison

Baseline vs. your extra payments

Scheduled payments only

Monthly payment
Payoff date
Time to payoff
Total interest
Total paid

With your extra payments

Monthly payment
New payoff date
Time to payoff
Total interest
Total paid

What extra payments buy you

Interest saved

Time saved

Interactive charts

See where the money goes

Payment composition over the life of the loan

Hover anywhere to read the exact split of any monthly payment.

Remaining balance

The balance curve bends toward zero as extra payments compound.

Cumulative interest paid

The growing gap between the lines is money you keep.

Every month, line by line

Amortization schedule

Monthly amortization schedule for the currently modeled scenario, including extra payments
# Date Payment Principal Interest Extra Remaining balance
Totals

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