Buying a Second Home or Cottage in Ontario: The 20% Down Rule That Isn't One

You do not need 20% down to buy a second home in Ontario. All three default insurers will insure an owner-occupied second property to 95% of value, which on a $750,000 place near Collingwood means roughly $50,000 down instead of $150,000. Almost every article that comes up when you search this gets it wrong, and a few of them state flatly that CMHC will not insure a second home, which is not what CMHC's own program page says. The real constraints are not the down payment. They are what the property is, and whether you intend to rent it out.

What the minimum down payment actually is

A second home follows the same tiered structure as any other insured purchase: 5% of the first $500,000 of value, then 10% of everything above that, with insured financing capped at a purchase price below $1,500,000. On a $750,000 property that is $25,000 plus $25,000, so $50,000, or about 6.67% of the price.

CMHC's Second Home product goes to 95% loan-to-value on a one-unit property. Sagen's Vacation/Secondary Homes program and Canada Guaranty's Lifestyle Advantage do the same. Three insurers, same ceiling. This is not an obscure exception, it is a standard product that most buyers never hear about because they asked one bank and got one answer.

The property decides, not you

This is where cottage country files actually live or die. Insurers sort recreational property into two buckets, and the bucket is a fact about the building, not a preference you get to state.

A Type A property is winterized, has a permanent heat source, sits on a permanent foundation installed below the frost line, has year-round road access on reasonable quality public roads, and has a drinkable water source, whether that is municipal service, a well, or a cistern. Type A is the 95% bucket. CMHC frames the same requirement in its own words: the home has to be suitable and available for full time, year-round occupancy, with year-round access, by vehicular bridge or ferry if it is on an island.

A Type B property is the classic seasonal cottage. Seasonal road use is acceptable, there is no permanent heat source, the water does not have to be drinkable, and the place may be reachable only by boat. Sagen will insure Type B to 90%, so 10% down. Canada Guaranty says plainly that non-winterized homes with seasonal access are not eligible, and CMHC's year-round occupancy language rules them out too.

In practice that maps cleanly onto this region. A four-season place in Collingwood, Thornbury, The Blue Mountains, or Wasaga Beach on a municipal road is Type A and can go to 95%. A water-access island cottage on Georgian Bay is Type B, needs 10% down, and needs the file placed with the insurer that will actually take it. That is a placement problem, not a qualification problem, and it is worth knowing before you write an offer rather than after.

The condition that disqualifies most Blue Mountain buyers

Here is the part that catches people. These are second home programs, not investment programs. The property has to be occupied by you or by an immediate family member. Canada Guaranty lists rental properties as ineligible outright. Sagen excludes investment properties and rental pool properties from both Type A and Type B. CMHC requires the financing be intended for homeowner occupancy.

So if the plan is a chalet you will short-term rent most weekends of ski season to carry it, the 5% door is closed. Not because anyone is being difficult, but because that is a rental property, and rental property financing is a genuinely different product with a 20% minimum down payment and underwriting that runs on the property's numbers rather than yours. I wrote up how that side works in the guide to financing a rental property in Ontario.

Decide which one you are buying before the application, and be straight about it. Declaring a property as a second home and then running it as a short-term rental is misrepresentation on a mortgage application. The cost of getting that wrong is far larger than the down payment you saved.

What 5% down actually costs

Insured financing is not free money, it is a trade. Run the same $750,000 purchase both ways.

With $50,000 down, the base mortgage is $700,000, which is 93.33% LTV. That lands in the 90.01% to 95% band, where CMHC's premium rate is 4.00%. The premium is $28,000, added to the loan, so the mortgage registers at $728,000. Ontario also charges 8% provincial sales tax on the premium, and that $2,240 cannot be added to the loan. It is cash at closing, on top of your legal fees and land transfer tax.

With $150,000 down you avoid the premium entirely. So the honest framing is this: staying insured keeps $100,000 in your pocket today and costs you $28,000 in premium financed over the life of the loan plus $2,240 in tax at closing. Whether that is a good trade depends entirely on what the $100,000 is otherwise doing.

There is a middle option people forget. At $75,000 down you are at exactly 90% LTV, the premium rate drops from 4.00% to 3.10%, and the premium falls to $20,925 with $1,674 of Ontario tax. An extra $25,000 of down payment buys you $7,075 of premium savings. The bands are cliffs, not slopes, so it is always worth checking whether you are sitting just above one. The closing cost calculator will put the tax, legal, and land transfer numbers beside each other so you know the real cash requirement rather than just the down payment.

The amortization trap

This one is not in the marketing anywhere. Insured amortization beyond 25 years is restricted, and both Sagen and Canada Guaranty gate it the same way: you get 30 years only if you are a first-time home buyer or you are buying a newly constructed home.

You are buying a second home. By definition you are not a first-time buyer. So unless the cottage is new construction, your insured amortization is 25 years, and you are carrying a larger balance than you would have with 20% down. The payment consequence is real, and it compounds with the GDS and TDS ratios you have to pass while still carrying your principal residence. If the cottage is new construction, the 30-year door reopens, with a 0.20% premium surcharge attached. Worth pricing before you rule it out. Run both amortizations through the mortgage payment calculator so you are comparing actual payments rather than assumptions.

Where the down payment comes from matters

Most people in this area fund the second home out of equity in the first, usually through a HELOC or a refinance. That works, but understand what it does to the file. Borrowed funds are a non-traditional down payment source. CMHC allows non-traditional sources in the 90.01% to 95% band for borrowers with strong credit, and requires that the money be arm's length and not tied to the purchase and sale of the property. Lender overlays on top of that vary.

The bigger issue is usually ratios, not eligibility. The payment on the HELOC you used for the down payment is a debt, and it counts against you when the lender tests whether you can carry two properties. Pulling $50,000 of equity to avoid the premium can push you offside on TDS and cost you the approval. Test the whole structure in the affordability calculator with both payments in it before you commit to a plan.

You get two, not unlimited

CMHC-insured financing is available for two properties per borrower or co-borrower at any given time. Sagen limits it further and allows a maximum of one insured vacation property per applicant. So this is a one-time structural move for most households, not a way to assemble a portfolio. If building a portfolio is the actual goal, you are in investment property financing, and you should be structuring for that from the first purchase rather than discovering the ceiling on the third one.

What to line up before you offer

Confirm the heat source and whether the place is genuinely winterized. Confirm road access, who maintains the road, and whether it is maintained in winter. Confirm the water source and whether it is potable, and get a recent potability test if it is a well. Confirm septic condition and location. On a condo or a resort-style development, confirm there is no rental pool arrangement attached to the unit, because that alone can make it ineligible.

Those answers determine which insurer will look at the file and whether you need 5%, 10%, or 20%. Getting them before you write the offer is the difference between a clean condition of financing and a scramble with five days left on the clock.