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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 documentation is necessary for a mortgage application?

Comprehensive loan documentation ensures transparency and accountability during mortgage approval.

Key Points

  • Tell your lender why you need the mortgage.

  • Show proof of your job and income.

  • Your lender will calculate if you can afford your mortgage payments, property taxes, heating, and other debts.

  • The lender needs to know the value of the property compared to the mortgage amount, which may require an appraisal.

  • Your credit history will be reviewed.

  • You'll need to prove where your down payment is coming from.

  • Provide the signed purchase agreement and any other paperwork related to the property.

  • Your lender needs to explain why they approved your mortgage application.

  • You'll need to show you have home insurance.

  • If your mortgage needs to be insured, there needs to be proof that the mortgage insurance company has agreed to insure your mortgage.

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

BRRRR Mortgage Rules Canada 2026: OSFI B-20, CMHC & Refinance Strategy for Investors

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.

QUESTION: How do lenders assess rental income?

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

QUESTION: What down payment is required when using Rental Property?

Down payment requirements are a critical aspect of mortgage qualification, influenced by factors like Loan-to-Value (LTV) ratio and the property's intended use.

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If an independent third-party reviews a mortgage loan file, they should be able to replicate the underwriting criteria and arrive at the same credit decision based on the documented evidence. Below are common documentation requests:

Document TypeDescription
Loan PurposeAn outline of the loan's intended use.
Income VerificationProof of employment status and income details.
Debt Service RatiosCalculations of debt service ratios, validating heating costs, taxes, and other debt obligations.
LTV RatioThe (/glossary/loan-to-value) ratio, property valuation, and associated appraisal documents.
Credit EnquiriesCredit bureau reports and records of any other credit inquiries.
Down Payment SourceEvidence confirming the origin of the down payment.
Purchase AgreementThe purchase and sale agreement, alongside other relevant collateral documents.
Rationale for DecisionA well-articulated rationale supporting the lending decision, including any exceptions made.
Property InsuranceThe borrower's agreement and proof of active property insurance.