Mortgages in St. Catharines
What it really costs to buy in St. Catharines, the local rules that affect your mortgage, and the programs that help. Then compare lenders with one licensed mortgage professional.
Short answer
To buy a home in St. Catharines you need at least 5% down on the first $500,000 and 10% on the rest up to $1.5 million; at $1.5 million or more it’s 20%. On a $750,000 home that’s $50,000 down, plus $11,475 in Ontario land transfer tax, of which first-time buyers get up to $4,000 back. St. Catharines’s 2026 residential property tax rate is 1.8422% (urban area), about $1,842 a year for every $100,000 of assessed value.
St. Catharines at a glance
- Down payment: 5% on the first $500,000, 10% on the portion up to $1.5 million, and 20% at $1.5 million or more. FCAC
- With less than 20% down you pay mortgage insurance, usually 2.8% to 4% of the loan, added to your mortgage. Ontario’s 8% sales tax on that premium is due in cash at closing.
- You qualify at the higher of 5.25% or your rate plus 2%. OSFI
- St. Catharines property tax: 1.84% (2026) of assessed value.
- Local help: Habitat for Humanity Niagara.
How much cash do you need to buy in St. Catharines?
Your down payment and land transfer tax are the two big cheques. Here’s what they come to at three example prices.
| $500,000 home | $750,000 home | $1,000,000 home | |
|---|---|---|---|
| Minimum down payment | $25,000 | $50,000 | $75,000 |
| Mortgage insurance premium (added to the mortgage) | $19,000 | $28,000 | $37,000 |
| Ontario sales tax on the premium (paid at closing) | $1,520 | $2,240 | $2,960 |
| Ontario land transfer tax | $6,475 | $11,475 | $16,475 |
| First-time buyer refund | −$4,000 | −$4,000 | −$4,000 |
| Cash at closing, repeat buyer | $32,995 | $63,715 | $94,435 |
| Cash at closing, first-time buyer | $28,995 | $59,715 | $90,435 |
Example prices, not local averages. Assumes the minimum down payment, a 25-year amortization and a home with one single-family residence. Cash at closing doesn’t include legal fees, title insurance, an inspection or property tax and utility adjustments, which commonly add a few thousand dollars.
What is the property tax rate in St. Catharines?
St. Catharines’s 2026 residential property tax rate is 1.8422% (urban area), about $1,842 a year for every $100,000 of assessed value. On a home assessed at $500,000, that’s about $9,211 a year. Your bill is based on the assessed value set by MPAC, the Municipal Property Assessment Corporation, which is often different from the price you pay. Source
How NorthMerit can help
Tell us what you’re planning and we’ll connect you with one licensed mortgage professional who compares lenders for you. It’s free, and there’s no obligation.
Where can you get a mortgage in St. Catharines?
St. Catharines buyers can borrow from five kinds of lenders. A mortgage broker can reach most of them with one application; a bank can only offer its own products.
| Lender type | How you reach them | Often a good fit for | What to watch |
|---|---|---|---|
| Big banks | Directly, or through some brokers | Buyers who want everything with one bank | Posted rates are usually negotiable; breaking a fixed rate early can be expensive |
| Credit unions | Branch, or through a broker | Local decisions, some flexibility on income | Membership required; products vary by credit union |
| Monoline lenders | Only through mortgage brokers | Competitive rates and often lower prepayment penalties | No branches; service is by phone and online |
| Alternative (B) lenders | Through brokers | Self-employed income, bruised credit, recent newcomers | Higher rates plus a lender fee; usually 1 to 2 year terms |
| Private lenders | Through brokers | Short-term bridge, construction or equity-based loans | Highest rates and fees; you need a plan to refinance out |
In Ontario, mortgage brokers and agents must be licensed by FSRA, the Financial Services Regulatory Authority of Ontario. You can look up any broker on FSRA’s public register. FSRA
Programs that help buyers in St. Catharines
- First Home Savings Account (FHSA): save up to $8,000 a year and $40,000 in total. Contributions are tax-deductible and withdrawals for your first home are tax-free. CRA
- Home Buyers’ Plan: withdraw up to $60,000 from your RRSP for a first home and repay it over 15 years.
- Ontario land transfer tax refund: first-time buyers get up to $4,000 back, which covers the full tax on the first $368,000 of the price. Ontario
- 30-year amortization: first-time buyers and anyone buying a newly built home can stretch an insured mortgage to 30 years, which lowers the payment. Department of Finance
- GST rebate on new homes: first-time buyers pay no GST, the federal 5% part of HST (up to $50,000), on a new home up to $1 million, phasing out at $1.5 million, for agreements signed from March 20, 2025. Department of Finance
- Ontario’s temporary new-home rebate: for a new home bought from a builder as your main residence, with an agreement signed between April 1, 2026 and March 31, 2027, Ontario rebates up to $130,000 of HST, any buyer, not just first-timers. CRA notice
- Habitat for Humanity Niagara: a homeownership program with no down payment and an affordable mortgage for families who help build their home. In 2026 it was taking applications for homes in St. Catharines and Welland. Details
Can you rent out part of your home in St. Catharines?
Ontario’s Planning Act allows up to three units on most serviced residential lots, such as a main home plus a basement apartment and a garden suite, as long as you meet the building code and local zoning details. Source
Lenders can count part of the rent from a legal unit toward your income, and some will use the expected rent when you buy. A unit that isn’t legal or registered where required may not count, and can complicate your insurance.
How lenders decide what you can borrow
Every lender has to qualify you at the higher of 5.25% or your contract rate plus 2%, even though you pay the actual rate. If you switch lenders at renewal without borrowing more, you don’t have to pass that test again.
With an insured mortgage, your housing costs (payment, property tax, heating and half of any condo fees) generally can’t exceed 39% of your gross income, and all your debt payments together can’t exceed 44%.
- Two recent pay stubs and an employment letter, or two years of tax returns and notices of assessment if you’re self-employed
- Proof of your down payment, usually 90 days of statements
- Photo ID and details of your debts
- For a purchase, the signed agreement and MLS listing
Sources
We checked these figures against official sources in October 2026. Rules and rates change, so confirm the details with your mortgage professional, lawyer or the source before you rely on them.
- Minimum down payment (Financial Consumer Agency of Canada)
- 2024 mortgage reforms: $1.5M cap and 30-year amortization (Department of Finance)
- Minimum qualifying rate (OSFI)
- Mortgage insurance premiums (CMHC)
- Calculating land transfer tax (Government of Ontario)
- Land transfer tax refunds for first-time buyers (Government of Ontario)
- First Home Savings Account (Canada Revenue Agency)
- First-time buyers’ GST rebate becomes law (Department of Finance)
- Ontario enhanced new housing rebate (Canada Revenue Agency notice 346)
- Mortgage licensing in Ontario (FSRA)
- Additional residential units, up to three per lot (Environmental Registry of Ontario)
- St. Catharines property tax rates
- Habitat for Humanity Niagara
Common questions
What is the minimum down payment for a home in St. Catharines?
How much is land transfer tax in St. Catharines?
What is the property tax rate in St. Catharines?
Is there down payment help in St. Catharines?
Can I rent out a basement apartment in St. Catharines?
Do I have to pass the mortgage stress test?
Mortgages in St. Catharines neighbourhoods
Nearby cities
Your next home starts with one conversation.
Tell us your plans and talk to one licensed mortgage professional. Free, with no obligation.
