Amortization

Amortization is the schedule over which a loan's principal is paid down through periodic payments of principal and interest — commonly 25 or 30 years for commercial real estate debt.

What it means

The amortization period determines the payment size relative to the principal balance. A 30-year amortization schedule means the monthly payment is calculated as if the loan were paid off over 30 years. If the loan term is shorter (say, 10 years), a balloon payment is due at maturity for the remaining principal balance.

Longer amortization = lower monthly payment but slower principal paydown. Interest-only periods delay principal paydown entirely. CRE lenders underwrite DSCR against the amortization payment, not just interest.