If you’ve been Googling “how much mortgage can I afford,” you’re in good company. It’s the most searched mortgage question in Canada right now — and in BC’s market, where the benchmark price in the Lower Mainland remains over $1 million despite falling nearly 7% year-over-year, getting this number right matters more than ever.
Here’s the honest answer most lenders won’t tell you upfront: the amount you qualify for and the amount you can comfortably afford are two very different numbers.
The bank’s approved amount is usually going to be higher than what you should actually spend — not because banks are out to get you, but because they don’t know you. They don’t know whether you’re naturally frugal or tend to spend on big discretionary purchases. But you do.
This guide walks you through both numbers — what lenders will approve, and what you should actually take on.
The two numbers every BC buyer needs to know
1. What lenders will approve you for
Canadian lenders use two ratios to set your maximum borrowing limit:
Gross Debt Service (GDS) ratio — maximum 39%
Your housing costs (mortgage payment, property taxes, heat, and 50% of condo fees if applicable) cannot exceed 39% of your gross monthly income.
Total Debt Service (TDS) ratio — maximum 44%
All your debts combined — housing costs plus car payments, credit card minimums, student loans — cannot exceed 44% of your gross monthly income.
Example: If your household earns $120,000/year ($10,000/month gross):
Maximum housing costs (GDS): $3,900/month
Maximum total debt payments (TDS): $4,400/month
If you have a $600/month car payment and $200/month in minimum credit card payments, your maximum housing cost drops to $3,200/month to stay within the TDS limit.
2. The stress test — what rate you actually qualify at
Every federally regulated lender must qualify you at the higher of your contract rate + 2%, or the Bank of Canada benchmark rate — regardless of whether you choose fixed or variable.
In April 2026, the average five-year fixed mortgage rate climbed to 4.47%, pushing the stress test rate to approximately 6.47%.
What this means practically: if you’re offered a rate of 4.47%, lenders calculate your payments as if you were paying 6.47%. This is what limits your maximum purchase price — not the rate you’ll actually pay.
Why does the stress test exist? To make sure you can still afford your mortgage if rates rise after you lock in. It’s not designed to stop you from buying — it’s there to make sure you don’t become house-poor if circumstances change.
A simple affordability framework for BC buyers in 2026
Rather than working backwards from a lender’s maximum, start with what you’re comfortable paying each month.
Step 1: Pick your comfortable monthly payment
Look at your current rent or housing costs. What amount could you pay for your mortgage, taxes, and insurance without feeling stretched? Most financially comfortable homeowners keep this to 30–35% of their take-home pay — not gross income.
Step 2: Back into the purchase price
At today’s rates (roughly 4.39–4.59% for a 5-year fixed), here’s what $1,000/month in mortgage payment gets you at different amortizations:
AmortizationMortgage amount per $1,000/month25 years~$189,00030 years~$210,000
So if you can comfortably put $2,500/month toward your mortgage, that’s roughly $470,000–$525,000 in mortgage amount before taxes and insurance.
Step 3: Add your down payment
Add your down payment to your comfortable mortgage amount to get your target purchase price. If you have $75,000 saved and your comfortable mortgage is $500,000, your target range is around $575,000.
What’s actually affordable in BC right now?
BC’s housing market remains subdued heading into mid-2026. Home sales are running about 8.4% lower than the first four months of 2025, and active inventory across the province sits above 43,000 listings.
That’s actually good news for buyers. More inventory means less competition, more negotiating room, and less pressure to stretch beyond your comfortable number.
Surrey and Langley specifically continue to offer better value than Vancouver proper. Detached homes, townhomes, and condos at various price points exist in both markets — and with slower sales, subjects-to-financing and inspection conditions are being accepted again.
The 30-year amortization option for first-time buyers
Federal mortgage policy changes introduced 30-year insured amortizations for first-time buyers purchasing new builds, effective August 1, 2024. This can meaningfully reduce your monthly payment compared to the standard 25-year amortization — though it does mean paying more interest over the life of the mortgage.
On a $500,000 mortgage at 4.39%:
25-year amortization: ~$2,720/month
30-year amortization: ~$2,480/month
That $240/month difference can be the deciding factor for many first-time buyers qualifying under the stress test.
Common mistakes that shrink your affordability
1. Forgetting closing costs
Budget at least $2,000–$5,000 for closing costs — including legal fees ($1,500–$2,500), title insurance (~$200–$400), and home inspection ($400–$600). These are cash costs, not added to your mortgage.
2. New debt before closing
Financing a car, opening a new credit card, or taking on any new debt between pre-approval and completion can change your TDS ratio enough to affect your mortgage. Hold off on any new credit until after the keys are in your hand.
3. Using your full approved amount
The number lenders give you is a ceiling, not a target. You’re allowed — encouraged, even — to spend less.
Your next step
The most accurate affordability number comes from a 20-minute conversation — not a calculator. A broker looks at your actual income, debts, credit, and down payment and gives you a real pre-approval with a real rate hold.
I’m Raman Aulakh, a mortgage specialist with Dominion Lending Centres in Surrey. If you want to know exactly where you stand, reach out — no obligation, no pressure, just numbers.
📞 236-863-1674
✉️ raman.aulakh@dominionlending.ca
Rates and program details current as of May 2026. Subject to change. Always consult a licensed mortgage professional before making financial decisions.