Short answer
A mortgage pre-approval confirms how much a lender will likely lend you and holds a rate, normally for 90 to 120 days. It requires income documents, a credit check and details of your down payment, and it is stronger than a quick online pre-qualification. It is not a final approval — the lender still has to approve the specific property once you have an accepted offer.

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Mortgage Pre-Approval Overview
In order to obtain a mortgage, you must be approved by a lender. In order to buy a home, you'll likely need a mortgage. So, how do you know just how much you can afford?
This is why getting pre-approved is highly recommended. A mortgage pre-approval is a conditional commitment from a lender stating how much they're willing to lend you based on your financial profile. It involves a credit check, income verification, and an assessment of your overall financial health — giving you a clear budget range before you start shopping for a home in Canada.
Why Pre-Approval Matters for Home Buyers
House-hunting is one of the most exciting experiences you can have — but it's also a large commitment requiring a large investment. Without knowing how much you can afford, you risk falling in love with a home that's out of your budget.
Getting pre-approved provides clarity on what price range you should be comfortably considering. It helps narrow your house-hunting search, saves you valuable time, and sets you up for success rather than disappointment.
Key benefits of pre-approval:
What Lenders Assess During Pre-Approval
When reviewing your pre-approval application, lenders will typically require:
Understanding what lenders are looking for can help you prepare and present the strongest possible application.
Why Work with a Mortgage Broker for Pre-Approval
You can apply for pre-approval directly with a bank, but doing so may leave you at a disadvantage. Banks are busy, tied to strict policies, and can only offer you the rates they have available.
A licensed mortgage broker is an expert in the mortgage industry and knows exactly what lenders are looking for. This means a broker can help you submit crucial documents and information that can increase your borrowing power — and negotiate across 100+ lenders to find the best rate and terms for your situation.
Tips to Increase Your Pre-Approval Amount
There's often a misconception that as long as your income is high, you can be approved for an expensive home. While income matters, there's much more to consider:
Frequently Asked Questions
How long does a mortgage pre-approval take?
Most pre-approvals are completed within 24–48 hours once all necessary documents have been submitted to the lender.
Does a pre-approval guarantee my mortgage?
A pre-approval is a strong conditional commitment, but final approval depends on the specific property's appraisal and no major changes to your financial situation between pre-approval and closing.
What documents do I need for pre-approval?
Typically: proof of income, employment verification, identification, down payment verification, and information about your existing assets and debts.
Does pre-approval affect my credit score?
A pre-approval involves a credit check which may result in a small, temporary dip in your credit score. However, multiple mortgage inquiries within a short period are typically treated as a single inquiry by credit bureaus.
How long is a pre-approval valid?
Most pre-approvals are valid for 90-120 days, depending on the lender. If your pre-approval expires before you find a home, it can usually be renewed.
