Prequalification vs preauthorization in Quebec: the real difference explained

You''re shopping for a first property in Quebec and two terms keep coming up: prequalification and mortgage preauthorization. They''re often used interchangeably, but they actually refer to two distinct stages of the journey — with very different levels of commitment, documentation, and value for your purchase offer.

This article untangles the two, when to use which, and why going through both rather than one is generally the better strategy.

The distinction in one line

In short: prequalification gives you an estimate. Preauthorization gives you a conditional response with a protected rate.

Prequalification: quick framing tool

What it is

An estimate based on the information you declare: income, debts, down payment. No verification, no documents. The calculation applies the standard ratios (GDS 39%, TDS 44%) and the stress test to produce a realistic borrowing range.

That''s exactly what our borrowing capacity calculator does: you enter your numbers, you get a ballpark in a few minutes.

When prequalification is enough

• You''re starting to think about it: is a condo at $375,000 realistic or out of budget?
• You''re testing scenarios: impact of paying off an auto loan, a maxed-out FHSA, a co-borrower''s income added in.
• You''re 6-12 months from purchase: too early to trigger a credit inquiry that will expire before the offer.
• You want to frame a conversation with a broker before the first call.

Its limits

• No value in front of a seller. A prequalification signals nothing to a seller or their agent — it''s a personal calculation, not a lender''s position.
• No rate hold. Posted rates change. A prequalification done in January doesn''t protect you against a hike in March.
• No detection of blind spots. The calculation assumes everything you declare is verifiable. A $450,000 prequalification can turn into a $380,000 preauthorization if the lender detects unaveraged variable income, a poorly documented family gift, or a credit file more fragile than perceived.

Preauthorization: conditional lender commitment

What it is

A complete submission to a lender with your documents (pay stubs, CRA NoA, bank statements, down payment, debts). The lender analyzes, pulls your credit file, and issues a preauthorization letter:

• Maximum amount borrowed.
• Rate protected for 90 to 120 days (sometimes more).
• Conditions to be met before final approval (a compliant property, no changes to the file).

The lender conditionally commits to financing you if you find a property that meets the criteria.

When preauthorization becomes mandatory

• You''re ready to visit and make offers.
• You want to lock in your real maximum budget (not an estimate).
• The market is active in your target area — sellers require proof of financing to consider the offer.
• Rates are volatile and you want to protect yourself against a hike during your search.

What it concretely gives you

1. An official letter to attach to your purchase offers.
2. A rate hold: if rates rise, you keep the protected rate. If rates fall, you can generally request the new rate (lender policy).
3. Clear visibility on additional costs (CMHC insurance if down payment < 20%, notary fees, welcome tax).
4. A first filter for blind spots: missing documents, income calculations, actual ratios — you know what to work on before the offer.

What it doesn''t give you

• No guarantee of final financing. Final approval comes after the accepted offer to purchase, once the lender can analyze the property (appraisal, title, condo status).
• No immunity to file changes. If you take on new debt between the preauthorization and signing, financing can be re-evaluated.
• No shield against the seller. A preauthorization strengthens your offer — it doesn''t win every time in multi-offer situations.

The real journey: both stages, in order

The "prequal vs preauthorization" debate is framed the wrong way. In practice, buyers who do it well go through both:

Step 1 — Prequalification (months -6 to -3)

You frame the budget. You test whether your current income and down payment allow you to aim at the target price. If not, you identify what needs adjusting: raise the credit score, add to the down payment, pay down a debt inflating the TDS.

Tool: /en/prequal calculator. Related reading: how to calculate your borrowing capacity.

Step 2 — Initial qualification with a broker (months -3 to -1)

An AMF-licensed mortgage broker looks at your actual file (documents in hand) and confirms feasibility. This isn''t yet a formal submission to a lender — it''s a professional analysis that validates the prequalification and identifies the levers.

Details: initial mortgage qualification.

Step 3 — Formal preauthorization (when you start visiting)

The broker submits the file to 3-5 lenders in parallel. You receive the conditional offers, you choose, the preauthorization letter is issued with a 90-120 day rate hold. You go visit.

Documents to prepare: see our full documents checklist.

Step 4 — Final approval (after the accepted offer to purchase)

The lender analyzes the specific property (appraisal, title, condo syndicate if applicable). Issuance of the financing commitment letter. Signature at the notary.

Classic mistakes to avoid

Waiting too long for the preauthorization. Some buyers shop for 3-4 months without a preauthorization, thinking they''ll do it "once they''ve found something." They end up racing the clock to submit an offer — and lose the property to a buyer with preauthorization in hand.

Stacking prequalifications on multiple sites. Every serious site with a credit inquiry counts. Some marketing tools do soft checks (no impact), others do a hard inquiry without saying so clearly. Check before clicking.

Skipping prequalification and going straight to a broker. It''s not catastrophic, but you lose the chance to frame the budget and spot the levers before the broker pulls your credit file.

Cost of both stages

Both are free in Quebec in the vast majority of cases:

• Prequalification: free (calculator or exploratory call with a broker).
• Preauthorization via a mortgage broker: free for the buyer. The broker is paid by the lender at final funding.
• Preauthorization at a bank branch: also free, but with a single lender — you don''t compare offers.

What Courteo does in this journey

Courteo is a matchmaking platform, not a broker. Our concrete roles:

1. The /en/prequal calculator gives you the prequalification in 3 minutes, with no credit inquiry.
2. The match connects you with an AMF-licensed broker in the Courteo network for the initial qualification and the formal preauthorization.
3. The follow-up: we keep track of your file to make exchanges with the broker smoother.

Courteo does not display rates and does not do a credit analysis — the broker remains solely responsible for the analysis and presents the applicable rates.

Frequently asked questions on prequalification vs preauthorization

How long does a prequalification stay relevant?

As long as your situation doesn''t change significantly — income, debts, down payment stable. Concretely, 60 to 90 days. Beyond that, redo a prequalification, especially if rates have moved or you''ve paid off a major debt.

Does a prequalification affect my credit score?

A prequalification via calculator (like /en/prequal): never, no inquiry is made. A prequalification via a call with a broker who pulls your file: yes, like a preauthorization (3 to 5 points temporarily). Ask explicitly before sharing your SIN.

Can I do multiple preauthorizations with multiple brokers?

Technically yes, but it''s not recommended. Each broker will submit your file to lenders — you risk the same lender receiving your file twice from different sources, which complicates everything. The right reflex: one broker who submits in parallel to several lenders.

Does the preauthorization guarantee I''ll get the final financing?

No. It gives a conditional response from the lender on your profile. Final approval also depends on the property (appraisal, title, compliance) and a fresh check that your file hasn''t changed (new debt, employment change). Don''t take on any major financial commitment between preauthorization and signing at the notary.

Start with a prequalification

Start my purchase file→