Debt Investment Calculator with Amortization
Schedule

Before you rush off to the stock markets, make sure that you are investing some of your money into your own debts. For instance, if you have credit cards with Annual Percentage Rate (APRs) of 21%, you can earn a 21% return on your investment if you make more monthly payments towards that 21% APR credit card, rather than investing in the stock market. Furthermore, any money you save on NOT having to pay the 21% APR is tax-free. Thus, use this Debt Investment Calculator to find out your earnings had you increased your monthly payments on any of your debts (preferably credit cards with the highest APRs).

Enter the current monthly payments you make towards your debt. Then, add the additional monthly payment you could squeeze out in order to pay off your debt faster. Then, click on "Compute" and you will see the Return on Investment (ROI) on your debt.
New: You can also print out a Payment Schedule showing you the amortization of your debt and monthly payments. Very handy feature!

Enter the principal balance owed:
Enter the annual interest rate:
Enter the current monthly payment amount:
Enter a monthly amount to add to the current payment:
Current Payoff Term (Months):
Revised Payoff Term (Months):
Time Saved (Months):
Current Interest Cost:
Revised Interest Cost:
Total interest savings (Return on investment):
Guaranteed Annual Rate of Return: