Effective Interest Method
Category
General Concepts
The effective interest method is an accounting technique that allocates interest expense over the life of a lease liability by applying a constant periodic rate of interest to the remaining balance. It produces declining interest expense over time as the liability is reduced by payments.
Why it matters
The effective interest method determines how each lease payment is split between interest expense and principal reduction. Early in the lease term, more of each payment goes to interest; later, more goes to principal. This creates the front-loaded expense pattern characteristic of finance leases under ASC 842 and all leases under IFRS 16.
Understanding this method is essential for forecasting, budgeting, and explaining period-over-period expense changes to management and auditors.
How Arvexi handles this
Arvexi applies the effective interest method automatically when generating amortization schedules and journal entries. The platform calculates the interest component and principal reduction for each payment period, producing the correct expense allocation throughout the lease term.