The definitions lenders use
Lenders care about one question: who will use the cottage? The answer puts you in one of two buckets.
| Second home | Investment property | |
|---|---|---|
| Main use | You and immediate family | Rental to others |
| Mortgage insurance | Available through Sagen or Canada Guaranty | Not available from the insurers |
| Minimum down | 5% on the first $500,000 (year-round), 10% seasonal | Usually 20% or more |
| Rental income to qualify | Generally not counted | Often counted in part, by lender policy |
| Units | One unit | Lender dependent |
Down payment and insurance
Both second-home insurers are clear that their programs are for family use. Canada Guaranty lists rental properties, rental pools, timeshares and condo hotels as ineligible, and requires the home to be used as a secondary residence by you or an immediate family member. Sagen's program requires owner or immediate family occupancy and excludes investment properties. That is why a true rental cottage needs a conventional mortgage, which means at least 20% down.
Check your numbers in the down payment calculator, and see the full table in how much down payment you need for a cottage.
What the difference costs in cash
| Use | Minimum down | Mortgage insurance premium |
|---|---|---|
| Second home, insured | $40,000 | 4.00% of the loan with Sagen at this down payment |
| Rental or investment, conventional | $130,000 | None |
| Difference in cash needed | $90,000 |
That $90,000 gap is why the line between family use and rental matters so much. Seasonal cottages narrow the gap a little, because the insured minimum rises to 10% ($65,000 on the same price) and only Sagen insures them.
How lenders treat rental income
On a second-home insured mortgage, expect rental income not to count when you qualify. You need to carry the cottage on your own income.
On a conventional mortgage for a rental cottage, some lenders will count part of the expected or proven rental income, either by adding a share of it to your income or by offsetting it against the cottage costs. How much they count, and whether they accept short-term rental income at all, varies a lot by lender. Seasonal short-term income is harder to prove than a year-round lease, so lenders usually want a track record: past tax returns showing the rental income, or rental history from the current owner.
Before you count on rental income, check the township. Every major cottage municipality we track requires a short-term rental licence or registration, some cap the number of licences, and rules keep changing. See short-term rental rules in Ontario.
The occasional rental grey zone
Plenty of families buy a cottage for themselves and rent it a few weeks a year to cover costs. Does that make it an investment property? It depends on the insurer and lender, and their published rules do not spell out a number of weeks. Canada Guaranty excludes rental properties. For Sagen, the only source we have found on rental limits is an older third-party summary, so we will not tell you a rule we cannot confirm.
Our advice: tell us your realistic rental plans before we apply. We will match you to a program and lender that fits how you will actually use the place.
Talk to Jeff and Emily
Planning to rent it some of the summer? Talk to us first so the mortgage matches the plan.
Or call or text 416-628-9682
Your property insurer needs to know too
Cottage insurance policies treat rentals differently from family use. Some include short-term rental coverage up to a limit and sell an add-on beyond that, others need a separate policy. Your lender will require proof of insurance at closing, so if rentals are in the plan, tell the insurance broker the same thing you tell us. See cottage insurance in Ontario.
Misrepresentation risk
It can be tempting to call a rental cottage a second home to get 5% down. Do not. Telling a lender or insurer you will use a property one way when you plan another is mortgage fraud, and it can lead to the loan being called, insurance problems if something goes wrong, and trouble with your property insurer, which also needs to know about rentals. There are honest ways to get to the same goal, and that is our job.
Switching later
- Second home to rental. Life changes. If you start renting the cottage later, talk to your lender and insurer, check your mortgage terms and update your property insurance.
- Rental to family use. Usually simple from a mortgage view. You may be able to refinance or switch at renewal.
- Tax. Changing use can trigger a deemed sale for tax purposes unless you file an election, and rental income has to be reported. Speak with an accountant, and read about the principal residence designation.
Want the whole picture on renting? Read renting out your cottage.
Questions people ask
What is the difference between a second home and an investment property mortgage?
What is the down payment on a cottage I plan to rent?
Can I rent out my cottage if I bought it with 5% down?
Does rental income help me qualify for a cottage mortgage?
Do I need a licence to rent out my cottage in Ontario?
Can I change my cottage from a second home to a rental later?
Sources
- Canada Guaranty: Lifestyle Advantage (second homes) (checked 2026-10-12)
- Canada Guaranty: Lifestyle Advantage product sheet (Nov 2025) (checked 2026-10-12)
- Sagen: Vacation/Secondary Homes program (checked 2026-10-12)
- OSFI: Guideline B-20 advisory (80% LTV limit, 65% HELOC limit) (checked 2026-10-12)