Quick answer: A mortgage pre-approval is an early assessment of how much a lender may be willing to lend based on your income, debts, assets, credit and other information. It can help define a realistic price range, but it is not a final mortgage approval and it does not guarantee that a particular property will qualify.
Last verified: September 15, 2026
What does a mortgage pre-approval tell you?
A pre-approval may provide an estimated maximum mortgage amount, an estimated payment and, in some cases, a rate hold for a stated period. It is useful for planning, but the maximum amount should not automatically become your target purchase price. Closing costs, moving expenses, repairs, property taxes, utilities and future maintenance still need room in the budget.
The Financial Consumer Agency of Canada explains that a pre-approval amount is the maximum you may receive—not a guarantee of financing.
Documents commonly requested
- Government-issued identification
- Recent pay statements and an employment letter
- Notices of assessment and additional records for self-employed applicants
- Bank or investment statements showing the down payment
- Information about credit cards, loans, lines of credit and support obligations
- Details about other assets and financial commitments
The lender or mortgage broker may ask for additional documents depending on employment type, credit history, the source of the down payment and the property being purchased.
Why can the final approval be different?
Final approval normally considers both the borrower and the property. A lender may review the agreement of purchase and sale, appraisal, property type, condition, location and insurance availability. New debts, missed payments, employment changes or moving the down payment between accounts can also create questions.
An appraisal that is lower than the purchase price can produce a financing gap. See OHI’s guide to what happens when an appraisal comes in low.
Pre-approval does not replace a financing condition
A pre-approved buyer can still face a declined or reduced mortgage after making an offer. Whether a financing condition should be included is a transaction-specific decision to discuss with the buyer’s real estate representative, lender or mortgage broker and lawyer. Read OHI’s guide to financing conditions in Ontario offers.
Questions to ask the lender or broker
- How long is the rate hold, and what happens if rates fall?
- Which documents must be updated before closing?
- Are the quoted payments based on a fixed or variable rate?
- What closing costs were assumed?
- What property types or conditions could create problems?
- Are there prepayment limits or penalties?
Before making an offer
- Confirm the pre-approval is current.
- Keep the down payment and closing-cost paper trail organized.
- Avoid opening new credit or financing large purchases without asking the lender.
- Estimate land transfer tax and other closing costs using OHI’s Ontario land-transfer-tax guide.
- Review what happens on closing day in Ontario.
Continue your buyer research
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Frequently asked questions
Does a pre-approval affect my credit score?
A lender or broker may request a credit inquiry. Ask whether the inquiry will be a hard or soft check and whether several lenders will review the application. Credit-report treatment can depend on how and when inquiries are made.
How long does a mortgage pre-approval last?
Rate holds and document-validity periods vary. Income statements, employment information and bank records may need to be refreshed before an offer or closing, even when the original rate hold remains active.
Should I shop at the maximum amount?
Not necessarily. The maximum is an underwriting estimate, not a household spending recommendation. Buyers should leave room for closing costs, repairs, maintenance, rate changes and other goals.
General information only: Mortgage qualification and underwriting vary by lender and borrower. This article is not mortgage, financial, legal or tax advice.