Pre-qualification vs pre-approval
These two phrases get used interchangeably, but they mean very different things. Pre-qualification is a casual estimate based on numbers you tell a lender — "my income is X, my debts are Y, what could I borrow?" — without any verification. The lender pulls no credit, requests no documents, and the answer they give you is essentially a quick math check, not a commitment.
Pre-approval is the real version: the lender actually pulls your credit bureau, reviews your income documents (T4s, pay stubs, NOAs), and issues a formal letter committing to lend you a specific amount at a specific rate, valid for a specific window. Realtors and listing agents can tell the difference instantly — a pre-qualification letter carries no weight in a competitive offer; a pre-approval letter does.
If a lender or broker tells you you're "pre-approved" without ever pulling your credit or asking for documents, you're not actually pre-approved. You're pre-qualified, and the offer they've given you is provisional at best.
What documents do you need?
Lenders need three categories of evidence: who you are, how much you earn, and where your down payment is coming from.
Identity: Photo ID, sometimes a second piece. Income: Two recent pay stubs, last two years of T4s, last two years of Notices of Assessment (T1 General if self-employed). For salaried employees with stable employment, this is the easy part. Down payment source: 90 days of bank statements showing the funds, or a signed gift letter if the money is coming from family.
Self-employed borrowers, contract workers, and people with non-traditional income face a more complex documentation requirement — usually 2 years of T1 General with statements of business activity, plus business bank statements. We have a separate guide on self-employed mortgages that walks through this in detail.
How long does it take?
From the moment you send us your documents, a typical pre-approval comes back within 24-48 business hours. Faster if your file is straightforward; slower if there are complications like recent self-employment, a credit issue, or down payment funds that need additional sourcing.
Once issued, your pre-approval is valid for 90-120 days depending on the lender. The rate component is the time-sensitive bit — your approval to borrow $X is not really going to change in 4 months, but the rate at which you can borrow that amount can move dramatically. A pre-approval locks in your rate for the validity window, so even if rates rise during that period, you keep the lower rate as long as you fund your mortgage before the pre-approval expires.
If rates fall during your pre-approval window, most lenders will let you take the lower rate when you actually fund — so the pre-approval acts as a one-way option that captures rate decreases but protects you against rate increases.
Will pre-approval hurt my credit score?
Mortgage pre-approval involves a hard credit pull, which causes a small, temporary dip in your score — usually 5-15 points, recovering within a few months. This is the same impact as any single mortgage inquiry.
Critically, multiple mortgage inquiries within a 30-day window are treated by Equifax and TransUnion as a single inquiry for scoring purposes. This is called "rate shopping protection" and it means you can pre-approve with multiple lenders simultaneously without compounding the credit hit. If you're using a broker, you only get pulled once anyway — the broker submits to multiple lenders using that single pull.
What does damage your score is excessive credit shopping in the months before mortgage application. If you're planning to apply soon, hold off on opening new credit cards, applying for a car loan, or making large credit purchases. Lenders will also see those new tradelines on your bureau and ask questions.
What if you get denied?
Denials happen. The most common reasons: insufficient income to support the requested loan size, debt-service ratios outside the lender's tolerance, recent credit issues, or down payment funds that can't be verified.
If a denial happens, the worst response is to immediately apply at another lender — that's another credit pull on a file that just failed, which is a red flag for the next underwriter. Better: ask for the specific reason for the denial, fix the issue (or wait for the situation to improve), and reapply when you have a stronger file.
Brokers add real value here. A broker can submit your file to a lender that specializes in your specific issue (recent self-employment, bruised credit, new to Canada) instead of failing repeatedly at lenders whose underwriting box you don't fit.
How does this fit into the broader buying process?
Pre-approval is step 2 of about 8 in a typical home purchase. The rough sequence: (1) figure out your rough budget using a calculator, (2) get pre-approved with a real lender, (3) find a realtor and start house-hunting, (4) make an offer with conditions including financing, (5) submit the specific property to your lender for property-specific approval, (6) remove conditions, (7) lawyer paperwork, (8) closing day.
Pre-approval handles steps 2 and front-loads work for step 5. It's not a guarantee that a specific property will be financed (the lender can still decline a property they think is overvalued or has issues), but it dramatically de-risks the rest of the process.