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For informational purposes only. Not financial, legal, or professional advice. Consult a licensed mortgage professional before making decisions. See full disclaimer

FAQ Library
Investor•Verified 2026-02-18

What are the key differences between residential and commercial mortgage underwriting?

The key difference lies in the risk assessment approach.

Key Points

  • When you get a home loan, lenders focus on your ability to repay it.

  • For larger apartment building loans, lenders really look at how much income the property itself generates.

  • Banks need to hold a certain amount of money to cover the risk of your mortgage.

  • If you have a smaller down payment, mortgage insurance protects the lender if you can't pay your mortgage.

  • Smaller banks might have simpler ways to evaluate loans for commercial properties.

Need a Deeper Breakdown?

Read the full research guide this FAQ was derived from for more context and strategy.

Technical Research Verification

Our systems synchronized 3 data points and regulatory frameworks to verify this technical brief.

Read the deeper guide · Investor

2026 Guide: How to Finance 5+ Unit Residential Buildings in Canada

Related Questions

What are the critical mortgage underwriting principles for FRFIs?

Guideline B-20 underscores five key principles for robust residential mortgage underwriting, steering FRFIs toward judicious lending decisions and effective risk management.

How does B-20 affect Home Equity Lines of Credit (HELOCs)?

The FRFI would limit the non-amortizing HELOC component to $325,000.

What documentation is necessary for a mortgage application?

Comprehensive loan documentation ensures transparency and accountability during mortgage approval.

QUESTION: How do lenders assess rental income?

Lenders meticulously verify rental income as a crucial component of a borrower's capacity to repay.

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FactorResidential MortgageCommercial Mortgage
Primary FocusBorrower's Repayment AbilityProperty's Cash Flow
Key MetricCredit Score, IncomeDebt Service Coverage Ratio (DSCR)
Underwriting GuideGuideline B-20CAR (Capital Adequacy Requirements)