Qualifying Income for a Mortgage: What Lenders Evaluate
Income assessment is at the core of the mortgage qualification process in Canada. The lender must ensure the borrower has sufficient and stable income to cover mortgage payments and all other financial obligations. This assessment is conducted using gross debt service (GDS) and total debt service (TDS) ratios, governed by OSFI's Guideline B-20. The GDS ratio must not exceed 39% of gross income, while the TDS ratio is capped at 44%.
Salaried Employment Income
Income from a permanent full-time salaried position is the simplest type to document and the one lenders consider most reliable. The borrower must provide a recent employment letter confirming the position, gross annual salary, start date, and employment status (permanent, probationary, or contractual). The two most recent pay stubs are also required. For variable income such as overtime, commissions, and bonuses, the lender generally requires a two-year history and uses the average for qualification purposes.
Self-Employment Income
Self-employed individuals, sole proprietors, and corporate shareholders face more rigorous documentation requirements. The lender typically requests the two most recent T1 tax returns with financial statements (T2125 for sole proprietorships or T2 for corporations) along with the corresponding CRA Notices of Assessment. The income used is generally the two-year average of net income. Tax deductions that reduce taxable income (dépréciation, business expenses) can penalize borrowing capacity, even if the business's actual cash flow is strong.
Rental, Investment, and Other Income Sources
- Rental income: lenders typically accept between 50% and 80% of gross rental income from existing properties. A signed lease and rental income history are required. For a property being purchased as an income property, projected rental income may be used if supported by a rental value appraisal.
- Dividend and investment income: eligible if recurring over at least two years, confirmed by tax returns and CRA Notices of Assessment.
- Pension and retirement income: public pensions (QPP, OAS), employer pensions, and RRIF withdrawals are eligible upon presentation of T4A or T4RIF tax slips.
- Alimony and support payments: eligible if documented by a court order or notarized agreement in Quebec, with a receipt history of at least 12 months.
- Commission income: the two-year average is used, and commissions must represent a regular compensation component confirmed by the employer.
The Qualifying Rate (Stress Test) and Its Impact
Regardless of income type, all Canadian borrowers must qualify at OSFI's qualifying rate, which is the greater of the contractual rate plus 2% or the 5.25% floor rate. This qualifying rate reduces the maximum amount for which the borrower can qualify, as mortgage payments are calculated at a rate higher than the actual contract rate. This measure, imposed by Guideline B-20, is designed to ensure borrowers can absorb an interest rate increase at renewal.