# What Is the Effective Interest Method of Amortization?

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## Definition of 'What Is the Effective Interest Method of Amortization?'

The effective interest method of amortization is a method of allocating the interest expense on a loan over the life of the loan. It is used to calculate the interest expense that should be recognized each period, based on the effective interest rate of the loan. The effective interest rate is the interest rate that takes into account the time value of money and any fees or other charges associated with the loan.

To calculate the effective interest rate, you first need to calculate the net present value of the loan payments. This is the present value of the principal payments, plus the present value of the interest payments. The present value of a payment is calculated by discounting the future value of the payment by the effective interest rate.

Once you have calculated the net present value of the loan payments, you can divide the interest payments by the net present value to get the effective interest rate. The effective interest rate is used to calculate the interest expense that should be recognized each period.

The effective interest method of amortization is more accurate than the straight-line method of amortization, because it takes into account the time value of money. The straight-line method of amortization allocates the same amount of interest expense to each period, regardless of the timing of the payments. This can result in an inaccurate calculation of the interest expense, especially if the payments are not made evenly over the life of the loan.

The effective interest method of amortization is the preferred method of amortization for financial reporting purposes. It is also the method that is required by GAAP for most types of loans.

The effective interest method of amortization can be used for any type of loan, including mortgages, car loans, and student loans. It is also used for amortizing bonds payable.

The effective interest method of amortization is a more accurate way to calculate the interest expense on a loan than the straight-line method. It takes into account the time value of money and any fees or other charges associated with the loan. The effective interest method of amortization is the preferred method of amortization for financial reporting purposes and is required by GAAP for most types of loans.

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