What characterizes "Straight-line Amortization"?

Straight-line amortization is characterized by the requirement that principal is repaid in equal installments over the life of the loan. This method ensures that the borrower pays back a consistent amount of principal regularly, leading to a gradual decrease in the outstanding balance over time. As a result, the interest expense incurred on the remaining principal also decreases with each payment.

This approach is straightforward and allows for easier financial planning, as the borrower knows exactly how much principal will be paid off in each installment. By the end of the loan term, the total outstanding principal is fully paid off, provided all payments are made as scheduled.

While several other factors might influence a loan structure, such as the maturity date or the frequency of interest payments, these do not directly define straight-line amortization itself, which focuses solely on equal principal repayments. This distinct feature sets straight-line amortization apart from alternative amortization methods, where the payment amounts might vary or not solely consist of equal principal portions.