Commercial Mortgage Calculator in Excel: Understanding Amortization Formulas

As a commercial property owner or investor, it is crucial to understand how your mortgage loan will be paid off over time. One of the most effective ways to do this is by creating an amortization schedule using Microsoft Excel's built-in formulas. In this article, we will explore the PMT, NPER, CUMIPMT, and CUMPRINC formulas, providing a comprehensive guide on how to use them in your commercial mortgage calculator.

The following spreadsheet demonstrates a simple example of using these formulas to compare cumulative interest vs. principal payments over different loan terms. By analyzing this spreadsheet, you can see how the monthly payment (PMT) function determines the repayment amount and how it changes as the term of the loan is adjusted.

To get started with creating your own commercial mortgage calculator in Excel, download our Simple Amortization Spreadsheet. This worksheet uses only one special Excel formula, which we will explain below.

The key to understanding amortization formulas lies in knowing what each function does and how it's used. Here's a brief overview of the most commonly used functions:

* PMT: This function calculates the monthly payment based on the loan amount (pv), interest rate (rate), and number of payments (nper).

* NPER: This function returns the number of periods required to pay off a loan, given the loan amount (pv), interest rate (rate), and periodic payment (pmt).

* CUMIPMT: This function calculates the cumulative interest paid over a specific period, taking into account the loan amount (pv), interest rate (rate), number of payments (nper), and start/end periods (n1 and n2).

* CUMPRINC: This function calculates the cumulative principal payment for a specified period, using the same parameters as CUMIPMT.

* EFFECT: This function calculates the effective annual interest rate based on the nominal interest rate and compounding frequency.

By understanding how these formulas work together, you can create a comprehensive commercial mortgage calculator in Excel that will help you make informed decisions about your loan payments.

In our next article, we will dive deeper into each of these functions, providing detailed examples of how to use them in your spreadsheet. By following this series, you will gain the knowledge and skills necessary to build an effective commercial mortgage calculator in Excel.

Commercial mortgage calculator in excel