Canada expanded 30-year amortizations to any insured mortgage under $1.5M — and the numbers are significant. A buyer purchasing a $1.4M home with 10% down at 4.0% pays about $6,013/month over 30 years versus about $7,012/month on a 25-year term. That's roughly $1,000/month less — a difference that changes what you can qualify for and what you can afford to hold long-term.
Here's the full breakdown: who qualifies, what the actual numbers look like, and whether a 30-year amortization is the right move for you.
(on $1.4M @ 4.0%)
The Payment Comparison — Real Numbers
All calculations assume a 4.0% mortgage rate, which reflects current typical fixed rates in the 4.2–4.4% range (slightly discounted for illustration). CMHC insurance premiums are included in the loan amount where applicable.
| Purchase Price | Down Payment | 25-Year Monthly | 30-Year Monthly | Monthly Savings |
|---|---|---|---|---|
| $600,000 | 5% ($30K) | $3,200 | $2,760 | $440/mo |
| $800,000 | 10% ($80K) | $3,870 | $3,340 | $530/mo |
| $1,000,000 | 10% ($100K) | $4,840 | $4,170 | $670/mo |
| $1,200,000 | 10% ($120K) | $5,810 | $5,010 | $800/mo |
| $1,400,000 | 10% ($140K) | $7,012 | $6,013 | ~$1,000/mo |
Approximate figures. CMHC premium included in loan amount where applicable. Actual payments vary by lender and rate.
Who Qualifies for a 30-Year Amortization?
The expanded 30-year rule applies to insured mortgages — meaning mortgages where the buyer puts less than 20% down and carries CMHC, Sagen, or Canada Guaranty mortgage insurance. Here's the full criteria:
- Purchase price under $1.5M. The insured mortgage cap increased from $1M to $1.5M — this is what makes the 30-year option available on higher-priced homes.
- Down payment of 5–19.99%. You need CMHC insurance to access this. Buyers putting 20%+ down can already access 30-year amortizations through conventional (uninsured) mortgages.
- Owner-occupied only. CMHC insurance doesn't apply to rental properties. Investment purchases don't qualify for the insured pathway.
- Must pass the stress test. You still need to qualify at 2% above your contract rate (or the Bank of Canada benchmark, whichever is higher). The 30-year term reduces your monthly payment, which may actually help you pass the stress test at a higher price point.
Key point on the stress test: Because the 30-year amortization reduces your monthly payment, it can increase the price you qualify for. A buyer who maxes out at $1.1M on a 25-year term might qualify for $1.25M–$1.3M on a 30-year term — depending on their income and existing debts.
25-Year vs. 30-Year: The Real Trade-Off
A 30-year mortgage saves you money every month, but you pay more interest over the life of the loan. Here's how to think about whether the trade-off makes sense for you:
Take the 30-Year If…
- Cash flow is your primary constraint
- You plan to make lump sum prepayments when possible
- You're stretching to get into a strong appreciation market
- You want lower monthly obligations for life flexibility
- You're a first-time buyer prioritizing entry over optimization
Take the 25-Year If…
- You can comfortably carry the higher payment
- You're focused on building equity faster
- You're closer to retirement and want the mortgage paid off sooner
- You're unlikely to make extra prepayments
- Long-term interest cost is your priority concern
How Much More Interest Do You Pay Over 30 Years?
Let's be honest about the full cost. On a $900,000 mortgage at 4.0%:
- 25-year amortization: Total interest paid ≈ $566,000. Total cost ≈ $1,466,000.
- 30-year amortization: Total interest paid ≈ $693,000. Total cost ≈ $1,593,000.
- Difference: You pay approximately $127,000 more in interest over the full 30 years — but you save roughly $600/month along the way.
That $600/month over 5 years invested elsewhere at a 5% return would generate approximately $40,000. Held over 10 years, roughly $90,000. The math on the 30-year isn't as unfavourable as it sounds — especially if you're disciplined about using the freed-up cash flow productively.
The smarter move: Take the 30-year amortization for the lower monthly obligation, but make one extra payment per year. That single prepayment each year typically reduces a 30-year mortgage to approximately 23–24 years of actual repayment — giving you the flexibility of a 30-year with most of the equity build of a 25-year.
What This Means for Durham Region Buyers Right Now
For the Durham Region specifically, this change has real practical impact at current price points:
- Oshawa at $715K: A 10% down 30-year mortgage at 4.2% runs about $3,050/month — meaningfully more manageable than $3,560/month on 25 years. That $510/month difference is real money for a first-time buyer.
- Ajax or Whitby detached at $1M–$1.1M: The 30-year option lets buyers who were previously borderline qualify at these price points. On $1.1M with 10% down, that's roughly $4,600/month vs. $5,250/month on 25 years.
- Combined with HST removal on new builds: A buyer purchasing a new $850K townhome in Whitby saves $110,500 in HST and carries a monthly payment $550/month lower on a 30-year vs. 25-year. That's a combined difference of over $100K in upfront cost and $6,600/year in carrying costs versus what the same purchase would have cost in 2024.
Want to Know What You Can Actually Afford Right Now?
I'll run the actual numbers — 25-year vs. 30-year, stress test, HST savings, CMHC insurance — for your specific situation. No pressure, just honest math.
Call Jerold: (647) 291-3755 →