What this document proves for a mortgage file
A notice of assessment is the CRA response to a filed tax return for a specific tax year. It gives you an assessed income figure and a tax position for that return. It does not prove that the borrower earns the same amount today, and it does not replace a current employment letter or pay stub when the lender wants evidence of ongoing employment.
Line 15000 is total income. That is broader than employment income, so resist the temptation to copy it into the application as salary. A borrower may have other income sources or changes between years. Read the relevant year, understand the income mix and ask which documents support the amount you intend to use. The lender decides what is acceptable for its program.
What brokers check on it
Start with the taxpayer name, tax year and assessment date. Make sure the document belongs to the borrower and that you have the assessment the lender requested. If there has been a reassessment, establish which version is current. Keep the complete document rather than a cropped income line that removes the context needed to understand the assessment.
Review line 15000, any balance owing and the account information shown. An assessed balance is not automatically proof of the current amount outstanding or of payment. Ask for suitable evidence when the lender needs confirmation that taxes are paid. Record the figure, the year and the document source so another person reviewing the file can follow your work without guessing.
Common red flags
A different name, an unexpected tax year or missing pages can be a simple document problem, but it still needs to be resolved. Income that differs from the application needs an explanation before submission. A balance owing may require an updated account statement or payment evidence. Do not assume a later bank withdrawal settles the exact tax obligation without checking the source.
A large difference between an NOA and a T4 is not automatically misconduct. They answer different questions and may refer to different periods. What matters is whether the application has a supportable income story. Write down the unresolved difference, request the evidence that explains it and avoid describing a figure as verified while that explanation is still missing.
What the AI Underwriter cross checks it against
The AI Underwriter reads the NOA alongside the application, T4, pay stub and bank statements. It can surface differences in names, dates and income figures so the broker can trace each number back to its source. The useful output is a specific discrepancy with reasoning, not a blended average that hides how the documents differ.
For the Emily Carter specimen, the earlier assessed income is part of the history rather than an instruction to use that amount as current salary. The T4 and current pay stub still need to be reconciled. Ask whether overtime is regular and supported over the history the lender requires, then confirm the income treatment with the lender before finalizing the submission.
What the AI does not do
The AI does not approve or decline a mortgage, contact a lender or contact a credit bureau. It does not verify an assessment directly with the CRA or certify that a document is genuine. A clear extraction is still something the broker checks against the actual pages. The broker reviews every finding and decides which questions need to go back to the client.
Keep the original document, the request for clarification and the resulting evidence together. If you update the income in the application, explain why the revised figure is supported. That makes the file easier to review and avoids making the next person repeat your reconciliation from the beginning. A tidy note is useful only when the documents behind it are also available.
Reviewing a business owner's income?
Read the self employed mortgage income guide for the returns, business records and lender income treatment to confirm.
Frequently asked questions
- Is line 15000 the same as salary?
- No. Line 15000 is total income on the tax return. Confirm the sources and the lender treatment before using it as employment income.
- Does an NOA replace a current pay stub?
- No. An NOA describes an assessed tax year. A current pay stub helps establish present earnings and employment, subject to the lender requirements.
- What if the assessment shows a balance owing?
- Check what the lender requires and obtain current account or payment evidence when needed. The assessment alone may not establish the current tax balance.
- Can the AI confirm an NOA is genuine?
- No. It reads and compares the supplied documents. The broker reviews the source pages and follows the appropriate verification process.