Loan Prepayment Calculator

What Is Loan Prepayment?

Loan prepayment means paying an additional amount towards your loan before its scheduled repayment date. This payment is made over and above your regular EMI and helps reduce the outstanding loan principal. As a result, you may be able to reduce your total interest cost and repay your loan sooner.

When you pay a regular EMI, a portion goes towards interest and the remaining amount reduces your principal balance. However, when you make an additional principal payment, the amount is used to reduce your outstanding principal (subject to the lender's payment adjustment and applicable charges). This can help lower the interest charged on your remaining loan balance.

How to Calculate Loan Prepayment?

Calculating loan prepayment involves understanding how additional payments affect your outstanding principal, monthly interest, and remaining loan tenure. To estimate your savings, you need details such as the original loan amount, annual interest rate, loan term, extra payment amount, and payment frequency.

A Loan Prepayment Calculator uses these details to compare your original repayment schedule with a revised schedule that includes extra payments. It helps you estimate how much interest you can save and how much earlier you can pay off your loan.

Formulas Used for Loan Prepayment Calculation

The following formulas are used to calculate regular loan payments and the impact of additional payments.

1. Monthly EMI Calculation

First, calculate the regular monthly payment using the loan amount, interest rate, and repayment period.

Where:

• P = Original loan amount
• r = Monthly interest rate (Annual interest rate ÷ 12 ÷ 100)
• n = Total number of monthly payments

2. Monthly Interest Calculation

3. Principal Repayment Calculation

4. New Outstanding Balance After Extra Payment

This calculation is repeated for each payment period until the outstanding balance reaches zero.

5. Interest Savings Calculation

6. Time Saved Calculation

These calculations help determine the effect of one-time, monthly, or yearly additional payments on your loan.

Example of Loan Prepayment Calculation

Suppose you take a mortgage loan of $300,000 at an annual interest rate of 6.50% for 30 years. You decide to make additional monthly payments of $500 to repay the loan faster.

Your original loan details are:

Step 1: Calculate the monthly interest rate

Step 2: Calculate the original monthly EMI

Using the EMI formula:

Step 3: Add the extra monthly payment

This means you pay approximately $2,396.20 per month instead of the original $1,896.20.

Step 4: Calculate the revised loan balance

For each month, the calculator subtracts the principal portion of your regular EMI and the additional $500 payment from the previous outstanding balance.

This process continues until the loan is fully repaid.

Step 5: Compare the original and revised repayment schedules

Based on the example results provided in your calculator summary:

Step 6: Calculate potential interest savings

By making additional payments, you could potentially save approximately $168,349 in interest and pay off your loan 143 months (11 years and 11 months) earlier, based on the displayed repayment schedule.

A loan prepayment calculator makes it easier to compare different extra payment amounts and frequencies. You can try one-time, monthly, or yearly payments to see how each option affects your outstanding balance, total interest, and loan payoff date.

How to Use our Loan Prepayment Calculator?

A Loan Prepayment Calculator helps you estimate how much interest you can save and how early you can repay your loan by making additional payments. To get an estimate, enter your loan details and choose how often you want to make extra payments.

Enter Your Loan Information

1. Loan Type: Select the type of loan you want to calculate, such as a mortgage, auto loan, personal loan, or student loan.
2. Loan Amount: Enter the original amount you borrowed from the lender. This is the total loan amount before making any repayments.
3. Interest Rate: Enter the annual interest rate (APR) charged on your loan. This helps determine how much interest you pay over the repayment period.
4. Loan Term: Select the total repayment period in years and months. For example, if your loan term is 30 years, enter 30 years and 0 months.
5. Loan Start Date: Select the date when your loan repayment begins. This helps determine your payment schedule and when extra payments will be applied.
6. Payment Due Day: Choose the day of the month when your regular loan payment is due, such as the 1st, 5th, 10th, or 15th. The first payment will be scheduled for the selected day of the following month.

Choose Your Extra Payment Options

After entering your loan details, specify how much extra you want to pay towards your loan.

1. Extra Payment Frequency: Choose whether you want to make a one-time, yearly, or monthly extra payment.
2. Extra Payment Amount: Enter the additional amount you want to pay beyond your regular monthly payment. For example, if you choose $200, that amount will be applied according to your selected payment frequency.
3. Start After (Months): Enter the number of months after which you want to begin making extra payments. This allows you to delay additional payments until a later date.

Additional Options

Show Calculation Breakdown: Enable this option if you want to see a detailed breakdown of your loan repayment calculations, including how regular payments and extra payments affect your outstanding loan balance.

Once you enter all the required details, the calculator estimates how your extra payments can affect your loan repayment.