# How can I best prepare for income verification?

> Income verification is the bedrock of mortgage approval.

Category: Purchasing
Last verified: 2026-02-18
Source: https://ratellow.com/faqs/purchasing/how-can-i-best-prepare-for-income-verification

## Answer
| Verification Attribute | Requirement |
|---|---| 
| Independence | Confirmed by an independent source |
| Security | Difficult to falsify |
| Directness | Directly addresses income amount |
| Consistency | Aligns with other provided information |

## Institutional highlights
- You'll need to prove your income with official documents like your Notice of Assessment and T1 tax form.
- Lenders carefully check your documents to make sure they haven't been changed or altered.
- The income you claim on your mortgage application must match what's on your official income documents.
- Lenders want to see stable income, so a one-time bonus might not count as much as your regular salary when they calculate your mortgage.
- If you earn income outside of Canada, be prepared to provide extra documentation, as it can be harder to verify.

## Related guide
- https://ratellow.com/guides/self-employed-success-purchasing

## Sources
- Guarantors and co-signors of mortgages — https://www.osfi-bsif.gc.ca/en/guidance/guidance-library/residential-mortgage-underwriting-practices-procedures-guideline-2017#2.3.2
- I. Purpose and scope of the guideline — https://www.osfi-bsif.gc.ca/en/guidance/guidance-library/residential-mortgage-underwriting-practices-procedures-guideline-2017#1.0
- Contents — https://www.sagen.ca/ups/underwriting-documentation/#documentation