How to Use the Debt Hacker Calculator
Our Debt Hacker calculator shows you the dramatic impact of making one extra annual payment on your loan. Compare the standard payoff timeline against the "hacker" strategy and see how much time and interest you can save.
- Enter your current debt — the total amount you owe.
- Set your annual interest rate — the APR on your loan.
- Enter your standard monthly payment — your regular payment amount.
- Choose compounding frequency — monthly, quarterly, or yearly.
- Set your extra annual payment — how much extra you'll pay each year.
- Click "Calculate Early Payoff" to see the comparison.
The Power of Extra Payments
Making just one extra payment per year can shave years off your mortgage or loan term and save you tens of thousands in interest. This strategy works because every extra dollar goes directly toward your principal, reducing the balance on which future interest is calculated. The earlier in the year you make the extra payment, the more interest you save.
Debt Hacker vs. Debt Free Calculator
While our Debt Free calculator shows a standard amortization schedule, the Debt Hacker focuses specifically on the impact of irregular extra payments. Use the Debt Free calculator for a simple monthly payoff plan, and the Debt Hacker to optimize your extra payment strategy.
Frequently Asked Questions
When is the best time to make an extra payment? Earlier is better. Making your extra payment in January saves more interest than December because the principal is reduced for more of the year.
Can I make multiple extra payments? Yes! The calculator models one extra annual payment, but you can increase the amount to simulate larger or more frequent extra payments.
Does this work for any type of loan? Yes — mortgages, car loans, student loans, and personal loans all benefit from extra principal payments. Check that your loan doesn't have prepayment penalties.