Flex Down is a specialized mortgage strategy that allows you to purchase a home using borrowed funds for your down payment—something that is normally not permitted under standard mortgage rules in Canada.
Important: Flex Down (borrowed down payment) is only available through Canada Guaranty's Flex 95 Advantage™ program. CMHC and Sagen do not permit borrowed down payments. Not all lenders offer this program — ask Allen Ehlert to confirm availability.
Inputs
Leave blank to auto-estimate at 0.8% of home price.
Used to estimate heating cost. Or enter a custom heating amount below.
Leave blank to use $150/month flat default (CMHC guidelines). Size-based estimate shown in results.
50% of monthly condo fees is counted in GDS/TDS ratios.
Unlocks 30-year amortization for insured mortgages (Dec 15, 2024 rule).
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Stress test: qualify at greater of Contract + 2% or MQR. Current BoC benchmark: 5.25% — verify before use.
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Canada Guaranty uses ~3% of revolving balance as qualifying payment. Adjust for instalment loan if applicable.
Results
Debt Service Ratios
GDS (housing only)   — / 39% max
39%
TDS (all obligations)   — / 44% max
44%
Key Figures
Qualifying Rate
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Insured Mortgage
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CMHC Premium
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Monthly P&I (qualified)
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Monthly P&I (contract)
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Max Flex Down Loan
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Ratio Breakdown (Qualifying Rate)
Component Monthly In GDS In TDS
Mortgage P&I (qualified, incl. CMHC) — ✓ ✓
Property Taxes — ✓ ✓
Heating — ✓ ✓
Condo Fees (50% counted) — ✓ ✓
Total Housing (GDS numerator) — — —
Existing Monthly Debts — — ·
Flex Down Loan Payment (est.) — — ·
Total Obligations (TDS numerator) — — —
Gross Monthly Income — — —
Max Flex Down Loan —
Stress Test Impact
P&I @ Contract Rate
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P&I @ Qualifying Rate
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Delta (monthly)
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CMHC Premium Rate
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Diagnostics / Calculation Notes
    Disclaimer: This calculator is for illustration purposes only and does not constitute mortgage advice. Qualification is subject to lender and insurer approval. CMHC/insurer premium rates and rules reflect December 15, 2024 changes (insured cap raised to $1.5M, 30-year amortization for FTHB/new builds). Verify current MQR, premium rates, and eligibility with Allen Ehlert. Canadian fixed-rate mortgage payments are calculated using semi-annual compounding as required by the federal Interest Act. Canada Guaranty Flex 95 Advantage™ is currently the only insurer-backed product permitting borrowed down payments; CMHC and Sagen do not permit borrowed down payments.