Canada Mortgage Pre-Approval: Documents, Stress Test, and Rate Hold Explained

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Required:
• 2 recent paystubs
• Most recent T4
• Most recent CRA Notice of Assessment (NOA)
• 90 days of bank statements (showing down payment source)
• Government photo ID + second piece
• Employment letter (position, salary, length of service)

Possibly requested: business registration (if sole owner / consultant), 2 years of T4s/NOAs, 2 years of bonus/commission records, RRSP statements (for HBP withdrawal).

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Self-employed extras:
• 2 years of T1 General personal tax returns
• 2 years of NOAs
• 2 years of business financial statements (Income Statement, Balance Sheet)
• Business GST/HST registration + 2 years of filings
• 6–12 months of business bank statements
• Industry licensing if applicable

Common challenge: self-employed often legitimately deduct down to a low net income for tax savings — but that net income is exactly what lenders assess. Plan tax strategy 1–2 years ahead of buying to balance savings vs borrowing capacity.

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FINTRAC requires lenders to verify down payment source — the core of anti-money-laundering compliance.

Acceptable sources:
• Long-term personal savings (90-day bank statements)
• Asset sales (stocks, mutual funds, real estate) with statements
• RRSP Home Buyer’s Plan ($35,000 per first-time buyer; spouse can add another $35,000)
• Parental gift (gift letter must state “no repayment required”)
• Already-declared funds in Canada

Problematic: sudden large deposits (within 90 days), undeclared overseas transfers, crypto sales (many lenders won’t accept).

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OSFI Stress Test formula: qualifying rate = max(contract rate + 2%, 5.25%).

As of May 2026, 5-year fixed rates run around 4.39%, so qualifying rate = max(4.39% + 2%, 5.25%) = 6.39%.

What it means: even if your actual contract rate is 4.39%, the lender must qualify you at 6.39%. You can borrow about 15–20% less than if calculated at the contract rate alone.

Who must pass: all federally regulated lenders (Big 5 banks + most credit unions) on new mortgages, refinances, and switches to a new lender.

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Beyond the stress test, lenders calculate:

GDS (Gross Debt Service): mortgage payment + property tax + heating + 50% of condo fee, divided by gross income, must be ≤ 39%.

TDS (Total Debt Service): all GDS items + every other monthly debt (car, credit cards, student loans), divided by gross income, must be ≤ 44%.

All three thresholds (stress test, GDS, TDS) must be met. Practical: before applying, pay down credit card balances and avoid new credit applications — they directly inflate TDS.

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New rule from 2025: when your mortgage comes up for renewal, you do NOT need to re-pass the stress test if staying with the same lender.

Old rule: stress test required when switching lenders at renewal — gave existing lenders monopoly pricing on captive renewal customers.

New rule: switching lenders at renewal also no longer requires a special stress test — same standard test as a new mortgage. You can shop around freely. If you’re approaching renewal, check rates at multiple lenders.

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Pre-qualification is a rough estimate: a few questions (income, debt, down payment) and an instant number. No credit pull, no document review.

Useful for: getting a ballpark sense of price range. But this is not a real pre-approval — sellers won’t take it seriously, since no underwriting has happened.

Most banks’ online “mortgage calculator” tools produce pre-qualification numbers.

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Real pre-approval involves: 1) Full document submission; 2) Lender credit pull (hard inquiry); 3) Stress test verification; 4) Pre-approval letter issued; 5) Rate locked for 90–120 days.

The pre-approval letter is essentially required when competing for offers in the GTA — it tells sellers “this buyer has been underwritten by a lender, financing is reliable.”

Hard inquiry credit impact: typically 5–10 points off your score per pre-approval. But multiple mortgage hard inquiries within 30 days are treated as one by Equifax/TransUnion (rate shopping window) — no compounding penalty.

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Pre-approval ≠ final approval. Final approval (commitment letter) requires:

1) Property appraisal — lender’s appraiser confirms the home’s value supports the loan;
2) Income re-verification — if employment status changed between pre-approval and offer, must disclose;
3) Title search and insurance — lawyer confirms clean title;
4) Property insurance binder — proof of homeowner insurance.

The financing condition (typically 10–14 days) on your offer is the window for these. Skipping financing condition for a firm offer is a high-risk move — you take 100% responsibility for getting funded.