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Mortgage Amortization Explained: Choosing the Right Term for You

November 22, 2025
8 min read
Mortgage Amortization Explained: Choosing the Right Term for You - Mortgage Tips blog post featured image

Understanding Mortgage Amortization

Amortization is the total time to pay off your mortgage with regular payments.

Amortization Options in Canada

Standard Options:

  • 25 years (most common)
  • 20 years
  • 15 years

Extended (Uninsured Only):

  • 30 years
  • 35 years (limited availability)

Impact on Monthly Payments

$500,000 Mortgage at 5%:

Amortization Monthly Payment Difference
15 years $3,954 Baseline
20 years $3,278 -$676
25 years $2,908 -$1,046
30 years $2,684 -$1,270

Impact on Total Interest

Amortization Total Interest Extra Cost
15 years $211,720 Baseline
20 years $286,720 +$75,000
25 years $372,400 +$160,680
30 years $466,240 +$254,520

Choosing Your Amortization

Choose Shorter (15-20 years) If:

  • You can afford higher payments
  • You're older and want mortgage-free before retirement
  • You prioritize interest savings

Choose Standard (25 years) If:

  • You want balanced payment/savings
  • You're younger with income growth ahead
  • It's your first home purchase

Choose Longer (30 years) If:

  • You need lowest possible payment
  • You have variable/uncertain income
  • You're in expensive market

Frequently Asked Questions

Can I change my amortization mid-term?

Generally only at renewal. But prepayments effectively shorten your amortization anytime.

Does longer amortization affect approval?

It makes it easier to qualify since payments are lower.

Use our calculator to compare amortization scenarios.

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