Putting Extra Money Towards Principal Calculator

This calculator helps you determine how putting extra money towards your loan principal affects your payoff timeline. By focusing payments on the principal rather than interest, you can reduce the total interest paid and pay off your loan faster.

How to Use This Calculator

To use this calculator, follow these simple steps:

Enter your current loan balance in the "Current Principal" field.
Input your monthly payment amount in the "Monthly Payment" field.
Specify the annual interest rate of your loan in the "Annual Interest Rate" field.
Enter the amount of extra money you can put towards the principal each month in the "Extra Payment" field.
Click the "Calculate" button to see how your extra payments affect your loan payoff.

The calculator will show you the new payoff date, total interest saved, and a comparison chart showing your progress.

How It Works

The calculator uses the following formula to determine the impact of extra principal payments:

New Payoff Date = Original Payoff Date - (Extra Payment × Number of Months)

Where:

Original Payoff Date is calculated based on your current monthly payment and interest rate
Extra Payment is the additional amount you can put towards principal each month
Number of Months is the remaining term of your loan

The calculator also calculates the total interest saved by making extra principal payments, which is determined by:

Total Interest Saved = (Original Interest Paid) - (New Interest Paid)

By focusing extra payments on the principal, you reduce the amount of interest that accumulates over time, allowing you to pay off your loan faster.

Example Calculation

Let's look at an example to see how putting extra money towards principal works.

Example Scenario:

Current Principal: $100,000
Monthly Payment: $800
Annual Interest Rate: 5%
Extra Payment: $200/month

Without the extra payment, it would take approximately 12 years to pay off this loan. With the extra $200/month towards principal, you could pay off the loan in about 10 years, saving over $10,000 in interest.

This example shows how even small extra payments can significantly reduce your payoff time and total interest paid.

Frequently Asked Questions

How does putting extra money towards principal work?

Putting extra money towards principal reduces the amount you owe, which in turn reduces the interest you pay over time. This allows you to pay off your loan faster and save money on interest.

Is it better to put extra payments towards principal or interest?

Putting extra payments towards principal is generally better because it reduces the principal balance faster, which lowers the total interest paid over the life of the loan. However, some loans may have minimum interest payment requirements.

How much can I save by putting extra money towards principal?

The amount you can save depends on your loan balance, interest rate, and how much extra you can pay. The calculator shows you the exact savings based on your specific numbers.

Can I put extra money towards principal on any type of loan?

Yes, you can put extra money towards principal on most types of loans, including mortgages, car loans, and personal loans. However, some loans may have restrictions on extra payments.