The Office of the Superintendent of Financial Institutions has updated the Mortgage Insurer Capital Adequacy Test for 2027, introducing a separate category for low-rise multi-unit residential construction and reducing its base risk weight from 150% to 130%. The change aligns mortgage insurer capital requirements more closely with the lower risk profile of these exposures and with related 2027 capital framework updates. Low-rise projects are defined as having fewer than seven stories and 200 units. Projects outside that definition will not receive the preferential treatment, while high-rise residential construction exposures remain subject to a 150% risk weight. The revised framework, which sets minimum capital requirements for mortgage insurers, takes effect Jan. 1, 2027.