Calculating Mortgage Overpayments in Excel
This guide demonstrates how to calculate mortgage overpayments in Excel, helping you see how extra payments reduce the total interest on your loan over time. By using functions like PMT and adjusting for overpayments, you can understand the impact on your mortgage balance.
Step-by-Step Instructions for Mortgage Overpayment Calculation
1. Input Overpayment Amounts
- In a dedicated column, enter overpayment amounts (e.g., £100, £200) to apply extra payments each month. Format the column as currency if needed.
2. Modify Interest Calculation
- Adjust the interest calculation formula to subtract the overpayment from the remaining balance before calculating monthly interest.
3. Update Monthly Payment with Overpayment
- Include the overpayment in the monthly payment formula, reducing the balance further each month and affecting the total interest over time.
4. Observe the Interest Reduction
- Experiment with different overpayment amounts to see how much interest you can save. As overpayments increase, the total interest and loan term decrease significantly.
Final Tips on Mortgage Overpayment in Excel
Calculating mortgage overpayments in Excel can help you manage finances by highlighting the impact of extra payments. Use this method to experiment with overpayment scenarios and make informed decisions on saving interest over the life of your mortgage.