What is amortization and how does it affect my mortgage?

Updated: February 28, 2026CanadaFAQPrivate lending

Quick Summary

Amortization is the total schedule used to calculate payments. Longer amortization can lower the monthly payment, but usually increases total interest paid over time.

Amortization affects both your monthly payment and your long-term cost.

How it changes your payment

  • Longer amortization spreads principal repayment over more years, lowering the payment.
  • Shorter amortization raises the payment but reduces total interest over time.

Why it matters for approval

Some lenders use your payment in debt-ratio calculations, so amortization can influence how much you qualify for.

A common misunderstanding

Your term (e.g., 3 or 5 years) is not your amortization (e.g., 25 years). You renew the term, but amortization is the long runway for payoff.

If you’re using private lending, longer amortization is sometimes used to manage cash flow, but you still need a clear exit because private terms are often short.