Canada’s federal government has announced changes to mortgage insurance rules under Budget 2026, expanding access to insured financing for residential properties containing three to 50 units.
The measures are designed to improve financing options for small-scale developers, increase competition among mortgage insurers and support construction of housing that falls between single-family homes and large apartment buildings.
- Canada will expand mortgage insurance eligibility for newly built three- and four-unit properties, allowing financing of up to 90% of property value without an owner-occupancy requirement.
- Private mortgage insurers will be permitted to insure residential properties containing five to 50 units, with amortization periods of up to 50 years for new construction.
- The new mortgage insurance rules are scheduled to take effect on February 1, 2027, as part of Canada’s strategy to increase housing construction.
The Department of Finance published detailed eligibility requirements on November 5, confirming that lenders will be able to submit applications under the new rules beginning February 1, 2027.
The reforms build on commitments announced in the Spring Economic Update 2026 and are intended to address financing barriers facing developers of smaller multi-unit residential properties.
Mortgage insurance expanded for three- and four-unit properties
Under the new framework, mortgage insurers will be able to provide greater financing flexibility for the construction and purchase of newly built three- and four-unit residential properties.
Eligible projects will qualify for insured mortgages covering up to 90% of their projected value upon completion. The government is also removing the maximum property value limit and the requirement for borrowers to occupy one of the units.
These changes are particularly relevant for developers constructing triplexes and fourplexes as rental investments.
Under existing rules, certain projects cannot access mortgage insurance because their property values exceed applicable limits or because the developer does not intend to occupy a unit (see TOP 75 Insurance companies in Canada).
Budget 2026 illustrates the changes using a proposed C$3 mn fourplex. Under the new rules, the developer could obtain insured construction financing for up to 90% of the property’s value without having to live in the building. The government also wants to permit 30-year amortizations for mortgages covered by this insurance, provided that at least one borrower is purchasing a home for the first time or the property is newly constructed.
Once construction is complete, the property could be retained as rental housing with an insured mortgage amortized over as long as 30 years.
The developer could alternatively sell the completed units to individual buyers. Borrowers will still need to satisfy financial eligibility requirements, including applicable debt-service and credit standards.
Private mortgage insurers gain access to five- to 50-unit properties
A second major reform will allow private mortgage insurers to offer mortgage loan insurance for residential properties containing between five and 50 self-contained units. The expanded framework covers construction, property purchases, refinancing and mortgage renewals.
According to the Department of Finance, the new insurance parameters include:
- Maximum loan-to-value ratio of 90% for new construction.
- Maximum loan-to-value ratio of 85% for other eligible transactions.
- Mortgage amortizations of up to 50 years for newly constructed properties.
- Mortgage amortizations of up to 40 years for other eligible transactions.
- No maximum property value limit.
- No requirement for borrowers to occupy the property.
The framework also introduces financial qualification requirements. Borrowers must have a minimum net worth equivalent to 25% of the requested loan amount, subject to a minimum of C$100,000.
Minimum debt coverage ratios are set at 1.15 for five-year mortgage terms and 1.10 for 10-year terms.
Construction financing will be subject to separate underwriting assessments established by participating insurers. The changes broaden the range of projects that private insurers can support and could provide developers with additional financing alternatives.
New insurance rules aim to increase housing construction
The government is positioning mortgage insurance reform as part of its wider strategy to address Canada’s housing shortage.
Smaller multi-unit developments can face financing challenges because they do not always fit conventional residential mortgage requirements or the lending structures typically used for large commercial properties.
Expanded insurance eligibility could help reduce financing barriers for developers undertaking infill construction and smaller rental projects.
The reforms may also increase competition between mortgage insurance providers by allowing private insurers to participate in a broader segment of the multi-unit residential market.
However, expanded eligibility does not guarantee financing approval. Lenders and insurers will continue to evaluate creditworthiness, repayment capacity and project risks.
Longer amortization periods can improve project cash flow by reducing scheduled payments, although they may increase total interest expenses over the life of a mortgage.
The measures also complement Budget 2026’s proposed additional C$13 bn investment in Build Canada Homes over 10 years, starting in fiscal 2028-2029. That funding is intended to expand non-market housing construction and increase the agency’s total capitalization to C$45 bn.
Mortgage insurance changes take effect February 2027
The Department of Finance has confirmed that the new insurance parameters will apply to eligible applications submitted by lenders to mortgage insurers on or after February 1, 2027.
The reforms cover two distinct segments of the housing market: newly built three- and four-unit properties and residential buildings containing five to 50 units.
By removing certain property value and owner-occupancy restrictions, the government expects to make insured financing available to a wider range of housing developers and investors.
The extent to which the changes increase construction will depend on lender participation, insurance pricing, project economics and local development conditions.
