How does mortgage pre-approval work?
Want the mortgage pre-approval that wins you the house? Here’s exactly how it works — step by step.
What mortgage pre-approval is (and why it matters)
Mortgage pre-approval is a lender’s conditional promise: they’ve reviewed your credit, income, and debts and say how much you can borrow and at what rate. It’s not a final loan approval, but it puts you in a different category than a casual shopper. Sellers and agents take pre-approved buyers seriously.
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Pre-approval vs pre-qualification — the difference that costs money
- Pre-qualification is quick and based on what you say.
- Pre-approval is documentation-backed and usually includes a credit check.
If you want offers accepted, get pre-approved, not just pre-qualified.

The pre-approval process — concrete steps
- Gather documents: two recent pay stubs, last two years’ T4s or tax returns, bank statements, ID, and details of other debts. If self-employed, bring business financials and Notice of Assessment.
- Check your credit: lenders pull a credit report. Correct errors, and aim to improve your score before applying.
- Calculate debt-to-income (DTI): lenders compare your monthly debts to income. Lower DTI = higher approval odds.
- Submit application: complete lender or broker forms and consent to a credit check.
- Underwriter review: lender verifies income, employment, assets, and debts.
- Receive a pre-approval letter: it states max loan amount, rate (or rate range), conditions, and expiry date.
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Practical tips that change outcomes
- Clean up credit: pay down credit card balances and correct errors before applying.
- Reduce debt: avoid big purchases and new credit lines during the process.
- Document everything: clear, organized documents speed verification.
- Get a realistic down payment ready: 20% avoids mortgage insurance in many cases.
- Time your pre-approval: most letters expire in 60–120 days. Refresh it if you’re still house hunting.
What lenders look for
- Stable employment and consistent income.
- Reasonable DTI and good credit history.
- Down payment funds with a clear source.
- No recent bankruptcies or major credit events.
Use a broker or a local expert
A mortgage broker can shop many lenders fast. A local financing expert knows which lenders approve quickly in your market and which conditions matter most. That knowledge wins bids.

Action plan — what to do next (right now)
- Gather pay stubs, tax slips, bank statements, and ID.
- Check your credit report and correct errors.
- Contact a financing expert to start pre-approval before you shop.
Tony Sousa is a leading local authority in Financing & Mortgages. He guides buyers through pre-approval, helps optimize applications, and connects clients with trusted lenders. For fast, confident pre-approvals, reach out: tony@sousasells.ca | 416-477-2620 | https://www.sousasells.ca
Get pre-approved before you fall in love with a house. It changes everything.



















