# What documentation and income verification processes are involved?

> Solid income verification is key to assessing a borrower's ability to repay.

Category: Financing
Last verified: 2026-02-18
Source: https://ratellow.com/faqs/financing/what-documentation-and-income-verification-processes-are-involved

## Answer
Solid income verification is key to assessing a borrower's ability to repay. FRFIs use comprehensive processes to ensure accuracy. Here's the gist:

## Institutional highlights
- You'll need to prove your income with official documents that are hard to fake.
- Lenders will look at how steady your income is, not just temporary increases.
- If you're self-employed, expect to provide tax returns, business records, and other income proof.
- Be aware that getting a mortgage based on rental income can be tricky; lenders are cautious.
- Lenders need lots of paperwork, including proof of employment, debts, down payment, and home insurance.
- If someone co-signs your mortgage, their credit will be checked carefully too.

## Related guide
- https://ratellow.com/guides/first-time-buyer-rebates

## Sources
- Property value used for the LTV ratio — https://www.osfi-bsif.gc.ca/en/guidance/guidance-library/residential-mortgage-underwriting-practices-procedures-guideline-2017
- Footnotes — https://www.osfi-bsif.gc.ca/en/guidance/guidance-library/capital-adequacy-requirements-car-guideline-2026
- Page 2 — https://assets.cmhc-schl.gc.ca/sf/project/cmhc/pdfs/factsheets/new/cmhc-quick-reference.pdf#page=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