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Max base mortgage
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Insurance premium
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Total mortgage
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Max purchase price
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Summary
Qualifying rate
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GDS/TDS caps
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Monthly income
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Debts (mo)
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Taxes (mo)
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Heat (mo)
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Condo (100% mo)
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Insured?
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Pre-Qualification Calculator — FAQ
What does this calculator do?
It estimates your maximum purchase price and mortgage amount using Canadian lending guidelines:
GDS/TDS limits, the qualifying (stress-test) rate, minimum down-payment rules, and (if applicable) mortgage default
insurance premiums.
Pre-qualification vs. pre-approval — what’s the difference?
Pre-qualification is an estimate based on the numbers you enter; no credit check. Pre-approval involves a lender review,
credit pull, and often a rate hold. Use this tool for affordability; apply for pre-approval to firm things up.
How is the qualifying (stress-test) rate applied?
We use the higher of contract rate + 2.00% or your entered minimum qualifying rate (default 5.25%).
Your qualifying payment is based on this higher rate.
What GDS/TDS limits are used?
Defaults are GDS 39% and TDS 44%. You can edit these caps in the calculator.
How are condo fees and heating handled?
We now apply 100% of monthly condo fees in the GDS/TDS calculation.
Heating is auto-set by property type for consistency: $50/mo for Condos and $100/mo for Non-Condos (house/townhouse/duplex). The heating field is read-only so results are aligned with this policy.
Heating is auto-set by property type for consistency: $50/mo for Condos and $100/mo for Non-Condos (house/townhouse/duplex). The heating field is read-only so results are aligned with this policy.
How are other debts counted?
For revolving balances (credit cards and lines of credit), we assume a 3% of balance per month payment.
Installment debts (auto/other loans, support) use the monthly values you enter.
How are student loans treated?
If in repayment, we use your monthly payment. If not in repayment, we assume 1% of the outstanding balance per month.
How is the minimum down payment calculated?
For homes under $1,500,000: 5% of the first $500k + 10% of the portion from $500k to $1,000,000.
For homes $1,500,000+: minimum down is 20% and default insurance isn’t available.
When does default insurance apply?
If LTV > 80% and purchase price is below $1.5M, the mortgage is typically insured and a premium is added to the mortgage.
The calculator estimates the premium from the LTV tier and caps the base mortgage at a 95% LTV ceiling when needed.
Why could results differ from a lender’s?
Lenders/insurers may apply different overlays (e.g., alternate condo or utility treatment, credit-based limits).
They also verify income, down-payment source, and credit. Treat this as a guide, not a credit decision.
Do I need both applicant and co-applicant income?
No — enter what applies. The calculator sums incomes and applies the same caps to combined income and debts.
What happens if my down payment is below the minimum?
The tool automatically reduces the maximum purchase price until the minimum down-payment and insured LTV rules are met.
Can I print or save the results?
Yes — after you click Calculate, the Print to PDF button enables and prints a clean summary panel.
Which provinces are supported?
All Canadian provinces and territories. Enter realistic taxes/fees to improve accuracy.
It won’t calculate or looks off — what should I check?
Verify: incomes are annual, taxes are annual, condo fees are monthly and fully counted, property type is set correctly (for heat),
and rate/qualifying rate are reasonable. If still odd, refresh and try simpler numbers to isolate the issue.