What is it?
An appraisal is a qualified appraiser’s independent opinion of a home’s market value, written up in a report. When you buy, it is usually ordered by the lender (your bank) to confirm the value of the home that will secure the mortgage.
The key point is that the mortgage is based on the appraised value. The Appraisal Institute of Canada (AIC) explains that the approved mortgage amount is based on the appraised value, not the purchase price, and that if the price you paid is much higher than the appraisal you may not get the full loan you counted on.
Guideline B-20 from OSFI (the federal bank regulator) requires lenders to assess collateral properly, using a mix of on-site inspections, third-party appraisals and automated tools, and not to rely on a single method.
Who does it?
The AIC grants two designations. An AACI (Accredited Appraiser Canadian Institute) can appraise any property type; a CRA (Canadian Residential Appraiser) can appraise dwellings with up to four units and residential lots. OSFI B-20 says lenders using third-party appraisers should make sure they are designated, licensed or certified, and independent of the loan decision.
The appraiser’s client is usually the lender. The AIC explains that appraisers have a confidential relationship with their client, so even the person who paid may not receive the report without the lender’s written consent. Ask your lender whether you can get a copy.
An appraiser is not there to hit a target number. The AIC says appraisers are independent and do not advocate for a particular value.
How does it work?
- After your offer is accepted, you apply for the mortgage. The lender decides whether an appraisal is needed and what scope it should have.
- The lender assigns an appraiser. For a full appraisal, the appraiser visits the home for about 20 to 40 minutes and takes photos (AIC guidance). Sometimes a drive-by (exterior only) or desktop (data only) report is used instead.
- The appraiser analyzes 3 to 10 or more recent sales of similar homes to estimate market value. The AIC notes that most of the work happens after the visit, so you will not get a number on the spot.
- The report goes to the lender, which sets the loan amount using the lower of the appraised value and the price.
- If the appraisal is below the price, the lender tells you, and you must decide how to cover the difference (see below).
How is it different from a CMA or the MPAC assessment?
| Appraisal | CMA (comparative market analysis) | MPAC assessment | |
|---|---|---|---|
| Who | AIC-designated appraiser | Real estate agent | Municipal Property Assessment Corporation (MPAC) |
| Purpose | Confirm value for a mortgage (or for litigation, tax, estates) | Help set a listing or offer price | Calculate property tax |
| Basis | Recent comparable sales and the home’s condition | Recent comparable sales | Mass appraisal as of a fixed valuation date |
| Relation to today’s market | Opinion of value today | Estimate for today | Valuation date may be years old, so it can differ from market value |
| Cost | Usually a flat appraiser fee | Usually part of the agent’s service | None (you receive a notice) |
MPAC warns not to confuse "sale price" with "current value". The sale price is what two parties agreed on; MPAC’s current value is an opinion based on all sales in the area. Do not use the property tax assessment as evidence of what a home is worth.
When the appraisal comes in low (the appraisal gap)
In a hot market, competing offers can push the price above recent sales. Because the appraiser works from homes that have already sold, the appraised value can come in below what you agreed to pay. The difference is often called the "appraisal gap".
Since the loan is based on the appraised value, the most you can borrow can get smaller, and you must pay everything above the loan from your own money. So you may need more cash than the down payment you planned (see the example below). For an insured mortgage (less than 20% down), the insurer also uses a "lending value", and CMHC insurance requires the purchase price or lending value to be below $1,500,000.
If your deal is already firm when the low appraisal arrives, you cannot cancel. You could lose your deposit and be sued for losses. That is why RECO says pre-qualifying for a mortgage does not safely remove the need for a financing condition. A pre-approval also assesses you, not the appraisal of this specific home.
What you can do after a low appraisal: pay the gap from your own money, ask the lender to reconsider with other comparable sales (only through the lender), get a new appraisal through a different lender, or, if your financing condition is still open, renegotiate the price with the seller or end the deal. Talk to your mortgage professional and lawyer first.
Who pays?
The AIC explains that an appraiser’s fee is not tied to the value of the home and is generally a flat fee based on the complexity and hours involved. It also notes that for mortgage lending the homeowner is often required to pay the fee, even though the lender is the appraiser’s client.
Some lenders cover or refund the appraisal fee. Ask your lender or mortgage broker in advance about the amount and who pays. This page does not state a dollar amount because it varies by provider and changes often.
How to prepare
- Share property details early. The AIC suggests giving the address, access details and known upgrades up front. If you are the seller, have the construction year, major renovations and repairs, and permit documents ready.
- The appraiser may ask about listings or offers in the past 12 months and any sales of the home in the past three years.
- If you want to submit comparable sales, get a list of recent similar sales (a CMA) from your agent and pass it through the lender. The AIC says to keep communication in the lender’s channel to preserve independence.
- Allow time. The AIC notes that timelines vary by market and complexity. The appraisal must be done inside your financing condition period, so keep that in mind when you set the deadline.
- Interior photos need the owner’s (or occupant’s) consent. If the home is tenanted, give notice in advance.
Example
After a bidding war you agree to buy a Markham townhouse for $1,050,000. You plan a 20% down payment ($210,000) and a mortgage of $840,000. The lender’s appraisal comes back at $1,000,000.
The lender will lend only 80% of the appraised value, $800,000. The price is still $1,050,000, so you must bring $250,000 of your own money. The appraisal gap (price minus appraised value) is $50,000, and it means you need $40,000 more than you planned. Because the deal was already firm, the price could not be changed, and you covered the extra $40,000 with family help. (The numbers are made up to show how it works; actual loan ratios and terms differ by lender.)
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.
When you buy a home, the amount of your approved mortgage is based on the appraised value of your home. That means that it is the appraised value—not the purchase price—that the lender uses to determine the maximum amount of the mortgage loan. If the purchase price you paid is significantly higher than the appraised value, you may not receive the full amount of the loan that you were counting on.In plain wordsThe maximum mortgage is set by the appraised value, not the price you paid. If you paid much more than the appraisal, you may get less loan than you expected.
Source: aicanada.ca/need-an-appraiser/for-property-owners/ · checked Oct 30, 2026
Their fee is not determined by the value of the property being appraised and is generally a flat fee determined by the complexity of the assignment and number of hours required to complete the appraisal. … Often when a report is completed for mortgage lending purposes, the homeowner is required to pay the appraisal fee but the appraiser’s client is the lending institution making a lending decision for the property based on the report.In plain wordsThe fee is a flat amount based on the work, not the home’s value. For mortgage appraisals the homeowner often pays, but the lender is the client who receives the report.
Source: aicanada.ca/need-an-appraiser/for-property-owners/ · checked Oct 30, 2026
AACI—qualified to undertake any valuation and consulting assignment on residential, commercial, industrial, institutional, agricultural, land and special use property types. CRA—qualified to undertake any valuation and consulting assignment on dwellings containing not more than four self-contained family housing units or on individual undeveloped residential dwelling sites.In plain wordsAn AACI can appraise any property type; a CRA can appraise homes with up to four units and residential lots. Either can appraise an ordinary house or condo.
Source: aicanada.ca/need-an-appraiser/what-appraisers-do/ · checked Oct 30, 2026
FRFIs that use third-party appraisers should ensure that appraisals are prepared with the appropriate professional appraisal skill and diligence, and that appraisers are designated, licensed or certified, and meet qualification standards. As well, these appraisers should be independent from the mortgage acquisition, loan processing and loan decision process.In plain wordsFederally regulated lenders must use qualified appraisers who are independent from the people selling and approving the loan. That is why the buyer does not choose the appraiser.
Source: osfi-bsif.gc.ca/en/guidance/guidance-library/residential-mortgage-underwriting-practices-procedures-guideline-2017 · checked Oct 30, 2026
FRFIs should undertake a more comprehensive and prudent approach to collateral valuation for higher-risk transactions. Such transactions include, for example, residential mortgage loans with a relatively high LTV ratio, loans for illiquid properties, and loans in markets that have experienced rapid property price increases, which generate more uncertainty about the accuracy and stability of property valuations.In plain wordsLenders must value collateral more carefully for high-ratio loans and in markets where prices rose fast. This is one reason appraisals in a hot market often come in below the price.
Source: osfi-bsif.gc.ca/en/guidance/guidance-library/residential-mortgage-underwriting-practices-procedures-guideline-2017 · checked Oct 30, 2026
It is important not to confuse the meaning of the terms: Sale Price and Current Value. The sale price of a property is the final dollar figure negotiated and agreed on between parties. A property’s current value is an informed opinion of its worth, based on analysis of all sales transactions in a given market area.In plain wordsMPAC’s assessed value is a mass-appraisal opinion for property tax; the sale price is what two parties agreed on. They are different things, and both differ from a lender’s appraisal.
Source: mpac.ca/en/UnderstandingYourAssessment/HowSalesAffectYourPropertyAssessment · checked Oct 30, 2026
Be aware that pre-qualifying for a mortgage does not safely eliminate the need for a financing condition in an offer.In plain wordsPre-qualifying for a mortgage does not make it safe to drop the financing condition from your offer. For example, a low appraisal can shrink the loan.
Source: reco.on.ca/consumers/information-for-buyers/competing-offers/ · checked Oct 30, 2026
Common questions
Do I always need an appraisal?
Not if you pay cash. With a mortgage, the lender decides. The AIC explains that the lender or insurer decides whether an appraisal is needed and what scope fits. Sometimes a drive-by or desktop report is used instead of a full visit.
Can I choose the appraiser?
For a mortgage appraisal the lender normally assigns one. OSFI’s guideline requires the appraiser to be independent of the loan sales and approval process. You can hire an AIC member yourself for your own purposes, but the lender decides whether to use that report.
Can I get a copy of the report?
The lender is the client. The AIC says the report can only be released to others with the lender’s written consent. Even if you paid the fee, whether you get a copy depends on the lender’s policy, so ask in advance.
The appraisal came in low and my deal is already firm.
You still have to close. Options include covering the gap with your own money, asking the lender to reconsider with other comparable sales, or getting a new appraisal through another lender. Failing to close can cost you the deposit and more, so contact your mortgage professional and lawyer right away.
Should I get an appraisal when selling?
The AIC says an independent appraisal can help set a listing price. In many cases an agent’s CMA (comparative market analysis) is enough. For estates, divorce or tax matters where you may need a formal value, an appraisal can help. Ask your lawyer or accountant whether one is required.
Guides that use this term
Sources checked
- Appraisal Institute of Canada, For Residential Property Owners · checked Oct 30, 2026
- Appraisal Institute of Canada, What Appraisers Do · checked Oct 30, 2026
- Appraisal Institute of Canada, For Mortgage Industry (report types) · checked Oct 30, 2026
- OSFI, Guideline B-20 Residential Mortgage Underwriting Practices and Procedures (2017) · checked Oct 30, 2026
- MPAC, How Sales Affect Your Property Assessment · checked Oct 30, 2026
- CMHC, General requirements to qualify for mortgage loan insurance (price cap) · checked Oct 30, 2026
- RECO, Competing offers · checked Oct 30, 2026