Income verification
How Canadian lenders verify income.
Two people with identical deposits can be approved for very different amounts, because lenders do not count income the way a pay stub does. This is how each income type is documented, averaged, discounted, or excluded.
Executive summary
A Canadian lender does not ask "what do you earn?" It asks "what part of what you earn is reliable enough to service debt for the next five years, and can it be proven with third-party paper?" Everything below follows from that question.
The underlying principle
Federally regulated lenders operate under OSFI's Guideline B-20, which requires them to verify a borrower's identity, background and demonstrated willingness and capacity to service debt — and to do it with reliable, independently sourced documentation rather than a borrower's statement. Where a mortgage is default-insured, the insurer applies its own income-eligibility rules on top.
That produces the two tests every income type is put through: is it verifiable, and is it durable? Income that is verifiable but not durable gets averaged. Income that is durable but not verifiable gets excluded, however real it is.
Documentation matrix by income type
This matrix is an original summary of the paper Canadian lenders typically request and how the income is generally treated. Specific policy varies by lender and by insurer; treat it as a preparation checklist, not a lender's rulebook.
| Income type | Usual documentation | Typical treatment |
|---|---|---|
| Salaried, permanent | Recent pay stub, employment letter, prior-year T4 | Base salary used in full |
| Hourly, guaranteed hours | Pay stubs, employment letter stating guaranteed hours, T4s | Guaranteed hours used; extra hours treated as variable |
| Hourly, variable hours | Two years of T4s, pay stubs, employment letter | Two-year average, often capped at the current run rate |
| Commission | Two years of T4s or T1s, pay stubs, employment letter | Two-year average; a declining trend is usually taken at the lower year |
| Bonus and overtime | Two years of T4s, employer confirmation it is expected to continue | Two-year average, only if consistent and confirmed |
| Contract / term employee | Contract, pay history, T4 or invoices, renewal history | Considered where renewal history is established; new contracts are scrutinised |
| Self-employed, sole proprietor | Two years of T1 Generals with business statements, Notices of Assessment, business registration | Net declared income, two-year average, sometimes grossed up on insured programs |
| Incorporated | Two years of corporate financial statements, T1s, NOAs, articles of incorporation | Personal salary and dividends; retained earnings only by exception |
| Rental income | Lease, two years of T1 with rental statements, or market rent appraisal | Offset against property costs or a discounted share added to income |
| Pension, RRIF, annuity | Award letters, T4A, recent statements, NOA | Used in full where the payment is for life or a long fixed term |
| Child or spousal support | Separation agreement or court order, proof of receipt, NOA | Used where the order is enforceable and receipt is provable for the remaining term |
| Investment income | Two years of T1s and statements | Averaged; excluded if the capital funds the down payment |
How much of your income actually counts
The gap between what you earn and what a lender uses is the single most common surprise in a pre-approval. Three mechanics produce it.
Averaging. Variable income is reduced to a two-year average, which means a strong recent year is diluted by a weaker prior year. Trend capping. If the average is higher than the most recent year, most lenders use the lower figure — they will not underwrite to a number your income is moving away from. Exclusion. Income with no verifiable trail, or that a lender expects to stop, is simply not used.
Worked example: the same person, two income structures
What changes the answer
- Insured versus uninsured. Default-insured files must satisfy the insurer's income rules as well as the lender's, which narrows the room for judgment on unusual income.
- Length of history. Two years in the same line of work is the common threshold for variable and self-employed income. Less than that is not automatically fatal, but it moves the file toward lenders that price for it.
- Lender tier. A-lenders verify to a documentary standard. Alternative lenders may consider bank-statement or stated-income structures with more equity and a higher rate. Private lending is asset-driven and short term.
- Same employer, new role. A promotion inside the same employer usually preserves history; a move to a new employer on probation frequently does not.
Common failure modes and how to recover
| What goes wrong | Why it breaks the file | Recovery action |
|---|---|---|
| Quoted gross revenue, not declared income | Self-employed capacity is read off tax filings, not sales | Rebuild the application from Notices of Assessment before shopping |
| Job change during the financing condition | Employment is re-verified before funding | Delay the change to after closing, or disclose immediately so the file can be re-underwritten |
| Bonus counted at face value | Not confirmed as ongoing by the employer | Get a written employer confirmation, or requalify on base pay only |
| Taxes owing to CRA | Arrears can rank ahead of a mortgage and block funding | Clear the balance and obtain proof before conditions are removed |
| Rental income assumed at full rent | Lenders offset or discount it | Re-run capacity with the lender's own rental treatment before making an offer |
| New self-employment under two years | No averaging history | Consider a co-applicant, a larger down payment, or an alternative lender with appropriate pricing |
What to do next
Assemble the documents for your income type first, then test capacity against the number a lender would use — not the number on your contract. If your income is variable or self-employed, do this before you write an offer, not after.
Written and reviewed by the Canadian Mortgage Compass Editorial Desk. This page is general information for Canadian readers and is not mortgage, legal, tax, or financial advice, and not an offer of credit. Rules, rates, and lender policies change; confirm your own situation with a licensed mortgage professional in your province. Editorial policy · Corrections