Extra Payments Mortgage Calculator

Introduction: Welcome to the Extra Payments Mortgage Calculator, a tool designed to help you understand the impact of extra payments on your mortgage. Making additional payments can significantly reduce the overall interest paid and help you pay off your mortgage sooner. This calculator allows you to input essential details such as loan amount, interest rate, loan term, and any extra payments to estimate the total interest paid.

Formula: The calculator employs a monthly payment calculation formula adjusted for extra payments. It iterates through each month, considering the impact of the extra payment on reducing the remaining balance and calculates the total interest paid over the loan term.

How to Use:

  1. Enter the total loan amount for your mortgage.
  2. Input the annual interest rate for the mortgage.
  3. Specify the desired loan term in years.
  4. Optionally, enter any extra payment amount you plan to make each month.
  5. Click the "Calculate" button to obtain the estimated total interest paid.

Example: Suppose you have a mortgage with a loan amount of $200,000, an annual interest rate of 3.5%, a loan term of 15 years, and an additional monthly payment of $100. Use the calculator to estimate the impact of the extra payments on the total interest paid.


  1. Q: How do extra payments affect the overall interest paid on a mortgage? A: Extra payments can significantly reduce the total interest paid over the life of the mortgage by accelerating the repayment of the principal.
  2. Q: Is there a limit to the amount of extra payments I can make each month? A: In most cases, lenders do not impose limits on additional payments, but it's essential to check with your specific lender.
  3. Q: Can I use this calculator for different types of mortgages, such as fixed-rate or adjustable-rate mortgages? A: Yes, this calculator is suitable for estimating the impact of extra payments on various types of mortgages.

Conclusion: The Extra Payments Mortgage Calculator empowers you to make informed decisions about your mortgage by illustrating how additional payments can impact the overall interest paid. Use this tool to explore strategies for paying off your mortgage faster and reducing your long-term interest costs. Always consult with financial advisors for personalized advice based on your specific circumstances.

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