Before you fall in love with a place, you need to know your number. A mortgage pre-approval tells you how much a lender will actually lend you so you can shop with confidence and make offers sellers take seriously. Here’s how it works and how much you can expect to qualify for in 2026.
Quick answer: A mortgage pre-approval is a lender’s written estimate of how much you can borrow, based on your income, debts, credit score, and down payment. As a rough rule, most buyers qualify for roughly 4 to 4.5× their gross annual household income, but the real limit is set by two debt ratios (GDS and TDS) and the mortgage stress test. A pre-approval is usually free, takes anywhere from a few hours to a couple of days, and locks a rate for 90–120 days.
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What Is a Mortgage Pre-Approval (and Why You Need One First)
A pre-approval is when a lender reviews your finances up front and tells you: the maximum mortgage amount, an estimated rate, and often a rate hold. It’s not a guarantee of final financing, but it does three big things:
- Tells you your realistic budget so you don’t waste time on homes out of reach.
- Locks in today’s rate for a set window, protecting you if rates rise.
- Makes your offers stronger sellers trust buyers who are pre-approved.
How Much Can You Get Pre-Approved For?
Lenders don’t just pick a number they run your finances through set formulas. Two things decide your maximum.
Income, Debts & Debt-Service Ratios (GDS/TDS)
Lenders cap how much of your income can go to housing and total debt:
| Ratio | What it measures | Typical max |
| GDS (Gross Debt Service) | Housing costs (mortgage + property tax + heat + ½ strata) ÷ gross income | ~39% |
| TDS (Total Debt Service) | GDS plus all other debts (car loans, credit cards, lines of credit) ÷ gross income | ~44% |
The more debt you carry, the less mortgage you’ll qualify for even on the same income.
Credit Score & Down Payment
A strong credit score (usually 680+) gets you the best rates and smoother approval. Your down payment size also matters: a bigger down payment means a smaller mortgage and can help you qualify. And remember the stress test lenders must confirm you could afford payments at your contract rate + 2% (or ~5.25%, whichever is higher), so your qualifying amount is based on that higher rate, not the rate you’ll actually pay.
Pre-Approval vs Pre-Qualification The Difference
People mix these up constantly. They’re not the same:
| Pre-Qualification | Pre-Approval | |
| Depth | Quick estimate, self-reported info | Verified income, credit check, documents |
| Reliability | Rough guide | Much stronger |
| Rate hold | No | Yes (90–120 days) |
| Seller confidence | Low | High |
If you’re serious about buying, get pre-approved, not just pre-qualified.
Documents You Need to Get Pre-Approved
Have these ready to speed things up:
- Proof of income recent pay stubs, T4s, or (if self-employed) 2 years of Notices of Assessment
- Employment confirmation / letter
- Proof of down payment (bank/investment statements, or a gift letter)
- ID
- List of assets and debts (loans, credit cards, other obligations)
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How Long It Takes and How Long It Stays Valid (90–120 Days)
A pre-approval can come back in a few hours to a couple of business days once your documents are in. Once issued, the rate hold typically lasts 90 to 120 days. If you haven’t bought by then, you can usually renew it. If rates drop during that window, you generally get the lower rate at closing.
What Pre-Approval Does NOT Guarantee
Important reality check: a pre-approval is not final financing. Your lender still has to approve the specific property and confirm nothing has changed. It can fall through if you:
- Change jobs or income before closing
- Take on new debt (don’t finance a car mid-purchase!)
- Have your credit score drop
- Buy a home that doesn’t appraise or has issues (e.g., certain condos, leasehold, or problem buildings)
Keep your finances steady between pre-approval and closing.
FAQ
How much mortgage can I get on my income?
As a rough guide, about 4–4.5× your gross household income, but your real limit depends on your debts, credit, down payment, and the stress test.
Is a mortgage pre-approval free?
Yes, pre-approvals are typically free, whether you go through a bank or a mortgage broker.
Does a pre-approval hurt my credit score?
It involves a hard credit check, which can dip your score by a few points temporarily. Multiple mortgage inquiries in a short window are usually treated as one.
How long is a mortgage pre-approval good for?
Usually 90–120 days. After that you can renew it with updated documents.
What’s the difference between pre-qualification and pre-approval?
Pre-qualification is a rough, self-reported estimate; pre-approval verifies your finances, checks credit, and holds a rate. Pre-approval carries far more weight.
Can I be pre-approved and still get denied?
Yes. Final approval depends on the specific property and your finances staying unchanged. New debt, a job change, or a property that doesn’t appraise can derail it.
Should I get pre-approved before house hunting?
Absolutely. It sets your budget, strengthens your offers, and can lock in a rate before you shop.
Does the stress test still apply in 2026?
Yes you generally must qualify at your contract rate + 2% or ~5.25%, whichever is higher, so budget for that qualifying rate.
Bank or mortgage broker which is better for pre-approval?
A bank offers its own products; a broker shops multiple lenders for you, which can mean better rates or options if your situation is less standard.
