HomeLife Frontier Realty Inc., Brokerage Joonghyun Ahn, Sales Representative

Group: Mortgages and money

Mortgage pre-approval모기지 사전 승인

In one sentence

A lender’s early estimate, before you make an offer, of how much it may lend you and at what rate. It holds a rate for a set time but is not a commitment: the home still needs an appraisal and a full review.

Last checked Oct 31, 2026

What is it?

A mortgage pre-approval is a written note from a lender, given before you choose a home, that says roughly how much it expects to lend you and at what rate, based on your income, debts, credit history and down payment.

It tells you your budget before you start viewing homes, and it tells sellers that you are likely to get financing.

One thing you must know: a pre-approval is not a promise to lend. Once you have a home under contract, the lender appraises that home and reviews your file again before it issues the final approval (the commitment).

What a pre-approval does and does not do

It doesIt does not
Give you a rough maximum you can borrow.Promise that you will get that amount.
Hold a rate for a set period (a rate hold). If rates rise you keep the held rate; if they fall you usually get the lower one.Review the home itself (appraisal, condo documents and so on). That comes later.
Signal to the seller and listing agent that you are a serious buyer.Make it safe to drop the financing condition from your offer.
Get your documents collected early, so final approval is faster.Stay valid if your situation (income, debts, credit) changes.

How it works in Ontario

FSRA (Ontario’s financial regulator) says clearly that a pre-approval only means the lender is interested in offering you a mortgage. It is not a guarantee of a contract, and the lender may decide not to lend after it looks closely at you or the property.

Final approval comes as a commitment letter (also called an approval letter). FSRA says that once signed, it is a formal, binding contract with the lender. So the order is: pre-approval, then an accepted offer, then appraisal and full underwriting, then the commitment letter, then closing.

Federally regulated lenders such as banks must follow OSFI’s Guideline B-20. It expects them to verify income with an independent source, keep documents showing where the down payment came from, and have a sound appraisal process. That is why what you show at pre-approval gets checked again at final approval.

How long does it last?

No law sets the period. A rate hold of about 90 to 120 days is typical, but it varies by lender, so check the date on your pre-approval letter.

If you have not found a home by then, you can apply again to extend it. If rates have changed in the meantime, the new rate may apply.

Documents you will need

  • Government photo ID.
  • Proof of income: for employees, recent pay stubs, a job letter, last year’s T4 and notice of assessment (NOA, the letter the Canada Revenue Agency sends you after you file your taxes). Self-employed buyers usually need two years of tax returns and business documents.
  • Proof of down payment: usually about 90 days of account statements. For gifted money, a gift letter saying it does not have to be repaid. OSFI’s guideline tells lenders to get a letter confirming a gift has no recourse.
  • Debts and fixed costs: balances and monthly payments on car loans, student loans, credit cards and other loans.
  • Consent to a credit check. The lender pulls your credit report. OSFI’s guideline says lenders should not rely on the credit score alone but look at the whole history.

The exact list differs by lender. Ask your lender or mortgage broker for their list before you apply.

Pre-approval vs pre-qualification

A pre-qualification is a rough estimate of what you could borrow, based on the income and debts you state. It is often done without documents or a credit check, so the number can be wrong.

A pre-approval is the lender’s real review after you submit documents and it checks your credit. A rate hold usually comes only with a pre-approval. Before you start viewing homes, get a pre-approval, not just a pre-qualification.

Some lenders use the two words loosely. Just ask: did you check my documents, did you pull my credit, is a rate held, and until what date?

Why get one before you offer?

  • You shop with a real budget. Because of the stress test, you may be able to borrow less than you expect. Insured mortgages (less than 20% down), and uninsured ones from federally regulated lenders such as banks, are tested at the greater of your contract rate plus 2% or 5.25%.
  • It helps you decide how short a financing condition you can accept in a competing offer. But even with a pre-approval, dropping the financing condition is risky: a low appraisal or a problem in underwriting can mean no money on closing.
  • When rates are rising, the held rate protects you.
  • Your documents are ready, so final approval takes less time. That makes it easier to meet the financing deadline in a conditional offer, which is often only a few days.

What to watch out for

  • Do not take on new debt after the pre-approval. A car loan, a new credit card or a big purchase can cut the amount you qualify for at final approval.
  • Tell the lender right away if you change jobs or your income type changes (for example from salaried to contract or self-employed).
  • The pre-approved amount is not the same as what you can comfortably afford. Add property tax, condo fees, utilities and living costs and check what you can really pay each month.
  • Never put false information on the application. FSRA says that misstating facts or providing false documents in a mortgage application is illegal and can have serious consequences.

Example

Example

A couple looking in Richmond Hill gets a pre-approval from their bank. Based on their incomes, debts and a $200,000 down payment, the bank writes that it expects to lend up to $700,000 and holds a 5-year fixed rate for 120 days.

Six weeks later they offer $880,000 on a house with a 5-business-day financing condition, and the offer is accepted. The bank appraises the house, re-checks their documents and sends a commitment letter for $680,000. They waive the financing condition within the deadline, and the rate held at pre-approval applies. It shows that the pre-approved amount and the final loan can differ.

What the law and official sources say

Quotes are copied word for word. The "In plain words" lines are our explanation, not an official translation.

FSRA — A pre-approval is not a guaranteeFinancial Services Regulatory Authority of Ontario, "Signing a Mortgage Contract", Preapproval vs. Mortgage contract
When a lender preapproves you for a mortgage, it is not a guarantee that they will enter into a mortgage contract with you. A preapproval means the lender is interested in offering you a mortgage. A lender might choose not to offer you the mortgage after closely assessing you or the property.

In plain wordsA pre-approval only means the lender is interested. After a close look at you or the home, it can still say no.

Source: fsrao.ca/consumers/mortgage-brokering/signing-mortgage-contract · checked Oct 30, 2026

FSRA — The commitment letterFinancial Services Regulatory Authority of Ontario, "Signing a Mortgage Contract", Know what you are signing
Before receiving the full mortgage contract, you will receive a letter of commitment (also known as an approval letter). It signifies that financing has been officially approved and represents a formal, binding contract between you and the lender once signed.

In plain wordsThe real approval is the commitment letter. Once you sign it, it is a binding contract with the lender. It is a different document from a pre-approval.

Source: fsrao.ca/consumers/mortgage-brokering/signing-mortgage-contract · checked Oct 30, 2026

OSFI Guideline B-20 — Income verificationOSFI, Guideline B-20, Residential Mortgage Underwriting Practices and Procedures (2017), Principle 3, "Income verification"
FRFIs should demonstrate rigour in the verification of a borrower’s income, as income is a key factor in the assessment of the capacity to repay a mortgage loan, and verification of income helps detect and deter fraud or misrepresentation.

In plain wordsFederally regulated lenders such as banks must check your income carefully. That is why they ask for pay stubs, T4s and tax returns.

Source: osfi-bsif.gc.ca/en/guidance/guidance-library/residential-mortgage-underwriting-practices-procedures-guideline-2017 · checked Oct 30, 2026

OSFI Guideline B-20 — Loan documentation (including source of down payment)OSFI, Guideline B-20, Residential Mortgage Underwriting Practices and Procedures (2017), Principle 2, "Loan documentation"
Consequently, FRFIs should maintain complete documentation of the information that led to a mortgage approval. … Documentation verifying the source of the down payment;

In plain wordsLenders must keep every document behind an approval, including proof of where the down payment came from. That is why they ask for account statements and gift letters.

Source: osfi-bsif.gc.ca/en/guidance/guidance-library/residential-mortgage-underwriting-practices-procedures-guideline-2017 · checked Oct 30, 2026

OSFI Guideline B-20 — Appraisal of the propertyOSFI, Guideline B-20, Residential Mortgage Underwriting Practices and Procedures (2017), Principle 4
FRFIs should have sound collateral management and appraisal processes for the underlying mortgage properties.

In plain wordsLenders must have a proper process to value the home that secures the loan. That is why the home is appraised before final approval.

Source: osfi-bsif.gc.ca/en/guidance/guidance-library/residential-mortgage-underwriting-practices-procedures-guideline-2017 · checked Oct 30, 2026

FSRA — False information on an applicationFinancial Services Regulatory Authority of Ontario, "Mortgage Application Process"
You should also be aware that misstating facts or providing false information in your mortgage application is illegal and can have serious consequences.

In plain wordsGiving false facts or documents on a mortgage application is illegal and can have serious consequences.

Source: fsrao.ca/consumers/mortgage-brokering/mortgage-application-process · checked Oct 30, 2026

Common questions

I have a pre-approval. Can I offer without a financing condition?

We do not recommend it. A pre-approval reviews you, not the home. If the appraisal comes in below your price, the loan shrinks and you must cover the gap yourself. Decide only after talking to your lender and your agent.

How long does a pre-approval last?

No law sets a period. A rate hold of 90 to 120 days is common. It varies by lender, so check the date on your letter and reapply when it expires.

Will several pre-approvals hurt my credit score?

Each credit check is recorded. Several checks for the same purpose in a short period are generally said to have a small effect, but confirm with the credit bureaus (Equifax, TransUnion). A mortgage broker can often compare several lenders with one check.

Is it safe to spend the full pre-approved amount?

The pre-approved amount is the most the lender may lend, not what you can comfortably afford. Add property tax, condo fees, utilities, closing costs and living expenses and work out your real monthly limit.

What if rates drop after my pre-approval?

Usually the lender gives you the lower rate, but it depends on their terms. Check whether your pre-approval letter says what happens if rates fall.

Is a pre-qualification enough?

Before viewing homes, a pre-approval is better. A pre-qualification is an estimate based on numbers you state, so it can be wrong, and it usually does not hold a rate.

Guides that use this term

Sources checked

  1. FSRA, Signing a Mortgage Contract (preapproval vs contract, commitment letter) · checked Oct 30, 2026
  2. FSRA, Mortgage Application Process · checked Oct 30, 2026
  3. FSRA, Shopping for a Mortgage · checked Oct 30, 2026
  4. OSFI, Guideline B-20 (income verification, documentation, appraisal, down payment) · checked Oct 30, 2026
  5. OSFI, Minimum qualifying rate for uninsured mortgages · checked Oct 30, 2026
  6. Eligible Mortgage Loan Regulations, SOR/2012-281 (laws-lois, test rate for insured mortgages) · checked Oct 30, 2026