What is it?
A mortgage is money you borrow to buy a home, with the home as security (the lender can take it if you do not repay). You borrow the price minus your down payment (the part you pay with your own money).
You repay the principal (the amount borrowed) plus interest (the cost of borrowing) in regular payments, usually monthly or every two weeks. When it is fully repaid, the lender’s right ends and the home is yours free and clear.
If you stop paying, the lender can sell the home under the law (power of sale) to recover the debt. CMHC notes that if the sale does not cover the debt, the borrower may still owe the shortfall.
In Ontario it is registered on title as a “charge”
Ontario’s Land Titles Act calls a mortgage a “charge”. The owner (the chargor) promises to repay the lender (the chargee) and that right is registered against the land. A registered charge must state the principal amount it secures.
On closing (the day you pay the balance and become the owner), your lawyer registers the charge in the electronic land registry together with the transfer. Ontario’s Mortgages Act says “mortgage” includes any charge on property for securing money, so the two words mean the same thing.
The parts of a mortgage
| Word | Meaning |
|---|---|
| Principal | The money you actually borrowed. It goes down as you pay. |
| Interest | The cost of borrowing, set by the interest rate. |
| Rate | Fixed (stays the same for the term) or variable (moves with the bank’s prime rate). |
| Term | The length of your current contract, usually 1 to 5 years. At the end you renew or switch lenders. |
| Amortization | The total number of years to pay off the principal. Insured mortgages: usually 25 years at most, 30 for first-time buyers and new builds. |
| Payment frequency | Monthly, every two weeks, weekly and so on. It is written in your contract. |
Term and amortization are different things. See “Amortization and term” for details.
Who lends?
- Banks and credit unions: the most common lenders. FSRA (Ontario’s financial regulator) says a Level 1 mortgage agent can help you get a mortgage from a traditional lender such as a bank or a credit union.
- Lenders that only work through mortgage brokers: FSRA notes that some lenders only work through licensed brokerages, brokers or agents. These are often called monoline lenders.
- Alternative or private lenders: a short-term option when a bank says no. FSRA warns that rates and fees can be higher and that you need an “exit strategy” to move to a cheaper loan, usually within one or two years. You must use a Level 2 agent or a broker for these.
- In Ontario, people and companies that broker mortgages must be licensed by FSRA under the Mortgage Brokerages, Lenders and Administrators Act (banks, credit unions and some others are exempt). You can check a licence on FSRA’s website.
Insured and uninsured mortgages
If your down payment is less than 20% of the price, you need mortgage loan insurance (insurance that protects the lender, from CMHC or a private insurer). OSFI’s Guideline B-20 (OSFI is the federal bank regulator) says that by law a purchase mortgage with a loan-to-value ratio above 80 percent must be insured.
The lender pays the premium but normally passes it on to you. CMHC premiums range from 0.60% to 4.00% of the loan depending on the loan-to-value ratio (4.50% with a non-traditional down payment), and in Ontario provincial sales tax applies to the premium. An insured mortgage needs a price under $1,500,000.
With 20% or more down, the mortgage is uninsured (also called conventional). There is no premium, but the lender may look at your file more carefully. See “Mortgage default insurance” and “Down payment”.
The stress test
Federally regulated lenders check that you could still pay at a higher rate than your contract rate. For uninsured mortgages, OSFI sets the minimum qualifying rate (the greater of your contract rate plus 2% or 5.25%); for insured mortgages the federal regulations use the same formula.
This means you can borrow less than the amount your actual rate alone would allow. See “Mortgage stress test” for a worked example.
When the term ends: renewal
If principal is still owing when your term (for example 5 years) ends, you must renew. You can renew with the same lender at a new rate, or switch to another lender.
Since November 21, 2024, OSFI no longer requires the minimum qualifying rate when a stand-alone uninsured mortgage (a regular mortgage, not one combined with a HELOC) moves to another federally regulated lender with no increase in the loan amount or the remaining amortization (a “straight switch”). Compare offers before you renew.
When you sell: discharge
When you sell, your lawyer pays the remaining principal, interest and fees to the lender out of the sale money and registers a document that removes the charge from title (a discharge of charge, called a cessation of charge in the Act). The Land Titles Act says the land registrar notes the cessation once there is proof the charge has been satisfied.
Paying off a mortgage before the term ends can trigger a prepayment penalty. How it is calculated is written in your mortgage contract, so ask the lender for a payout statement before you sell. Also check whether your mortgage is portable (can move to your next home).
Example
You buy a Markham townhouse for $800,000 with a 20% down payment ($160,000) and borrow $640,000 at a 5-year fixed rate of 4.5% with a 25-year amortization. Your monthly payment is about $3,542 (an estimate for reference, using Canada’s semi-annual compounding). With 20% down, no mortgage insurance is needed.
After 5 years, when the term ends, about $562,000 of principal is left. You renew with the same bank or switch, and keep paying over the remaining 20 years at the new rate. If you sell in the meantime, your lawyer pays off the balance from the sale money and discharges the charge on title.
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.
A mortgage involves an agreement between a lender and a borrower where the lender decides to loan the borrower money to purchase property under the condition that the borrower promises to repay the loan and provides that land as security for their payment of the loan; when the loan is repaid in full, the lender will release the property to the borrower.In plain wordsA mortgage is a deal where the lender gives you money to buy a property, you promise to repay it, and the property is the security. When you have repaid it all, the lender releases the property.
Source: cmhc-schl.gc.ca/consumers/home-buying/mortgage-loan-insurance-for-consumers/faqs-mortgage-loan-insurance · checked Oct 30, 2026
“mortgage” includes any charge on any property for securing money or money’s worth; “mortgage money” means money or money’s worth secured by a mortgage;In plain wordsIn Ontario law, a mortgage includes any charge placed on property to secure money. That is why the “charge” on title is your mortgage.
Source: ontario.ca/laws/statute/90m40 · checked Oct 30, 2026
A registered owner may in the prescribed manner charge the land with the payment at an appointed time of any principal sum of money either with or without interest or as security for any other purpose and with or without a power of sale. … A charge that secures the payment of money shall state the amount of the principal sum that it secures.In plain wordsA registered owner can put a charge (mortgage) on the land in the required form, and the charge must state the principal amount it secures.
Source: ontario.ca/laws/statute/90l05 · checked Oct 30, 2026
The land registrar shall, on the requisition of the registered owner of land and on due proof of the satisfaction of a charge thereon, … note on the register in the required manner the cessation of the charge, and thereupon the charge ceases.In plain wordsWhen there is proof the mortgage has been paid, the land registrar notes on the register that the charge has ended, and it is gone from title.
Source: ontario.ca/laws/statute/90l05 · checked Oct 30, 2026
By law, residential mortgages underwritten for the purpose of purchasing, renovating or improving a property must be insured if their LTV ratios are greater than 80 percent.In plain wordsIf the loan is more than 80% of the home’s value, that is, your down payment is under 20%, the mortgage must be insured.
Source: osfi-bsif.gc.ca/en/guidance/guidance-library/residential-mortgage-underwriting-practices-procedures-guideline-2017 · checked Oct 30, 2026
A mortgage contract is a legally binding contract. When you and a lender sign the mortgage documents, you agree to the risks and the responsibilities outlined in the contract.In plain wordsOnce you sign the mortgage papers, you accept all the risks and duties written in them. Read and ask questions before you sign.
Source: fsrao.ca/consumers/mortgage-brokering/signing-mortgage-contract · checked Oct 30, 2026
Common questions
Is a charge different from a mortgage?
No. Ontario’s Land Titles Act calls a mortgage a “charge”, and the Mortgages Act says “mortgage” includes any charge that secures money. Lawyers and the land registry say charge; banks say mortgage.
What if my down payment is less than 20%?
You need mortgage loan insurance. With less than 20% down, the CMHC premium is 2.80% to 4.00% of the loan (4.50% with a non-traditional down payment). You can pay it up front or add it to your mortgage payments, but the provincial sales tax charged on it in Ontario cannot be added to the loan. If the price is $1,500,000 or more, insurance is not available, so you need at least 20% down.
Do I have to pay everything off when the term ends?
No. The term is only the length of your current contract. You renew the remaining principal and keep paying. You can renew with the same lender or switch to another one. Compare offers before renewing.
What happens to the mortgage when I sell?
Your lawyer pays the remaining principal, interest and any penalty out of the sale money and removes the charge from title. Paying out during the term can cost a prepayment penalty, so ask your lender for a payout statement first.
Should I go to a bank or a mortgage broker?
Either works. You can apply directly to a bank or credit union, or use an FSRA-licensed broker or agent who compares several lenders. FSRA says the more mortgages you compare, the more likely you are to find one that suits you.
What if I cannot make my payments?
The lender can sell the home under Ontario’s Mortgages Act (power of sale). CMHC notes that if the sale does not cover the debt, you may still owe the shortfall. If payments become hard, contact your lender early rather than waiting.
Guides that use this term
Sources checked
- CMHC, FAQs — mortgage loan insurance (What is a mortgage?) · checked Oct 30, 2026
- CMHC, mortgage loan insurance costs (premium table) · checked Oct 30, 2026
- CMHC, What is CMHC Mortgage Loan Insurance? · checked Oct 30, 2026
- Land Titles Act, R.S.O. 1990, c. L.5 (e-Laws) · checked Oct 30, 2026
- Mortgages Act, R.S.O. 1990, c. M.40 (e-Laws) · checked Oct 30, 2026
- OSFI, Guideline B-20 (Residential Mortgage Underwriting) · checked Oct 30, 2026
- OSFI, Minimum qualifying rate for uninsured mortgages · checked Oct 30, 2026
- OSFI, industry letter November 21, 2024 (straight-switch conditions, stand-alone mortgages) · checked Oct 31, 2026
- FSRA, Mortgage Brokering (who can lend, agent levels) · checked Oct 30, 2026
- FSRA, Working with a Mortgage Professional · checked Oct 30, 2026
- FSRA, Signing a Mortgage Contract · checked Oct 30, 2026
- FSRA, Private Mortgages · checked Oct 30, 2026