A builder in Kelowna spent four months getting a twelve-unit rental project to the top tier of CMHC’s MLI Select program. Best premium discount available. Full 50-year amortization. The kind of financing that turns a marginal deal into a genuinely good one. Ask that same builder to hit the identical score on the identical building design after September 30, 2026, and the honest answer from most energy consultants right now is that it probably will not happen.
Nothing about the building changes. What changes is the yardstick CMHC measures it against, and that shift is the kind of quiet policy detail that never makes headlines but reshapes real numbers on real deals. If you have a multifamily project anywhere in your pipeline this year, five units or five hundred, this is worth understanding before the deadline passes rather than after.
Here is what actually changed, why it matters, and what to do about it depending on where your project stands right now.
What MLI Select Actually Does
MLI Select is CMHC’s mortgage loan insurance product for rental buildings, standard apartments, single room occupancies, supportive housing, and retirement residences with a minimum of five units, or fifty units for retirement homes specifically. It replaced the older MLI Flex product back in 2022, and it works on a points system rather than a flat set of qualifying criteria.
You earn points across three categories: affordability, energy efficiency, and accessibility. Commit to renting a share of your units below market rate to households earning around the median renter income, and you earn affordability points. Design or retrofit the building to use meaningfully less energy than a baseline code requires, and you earn energy efficiency points. Build in accessible units and barrier-free common areas, and you earn accessibility points.
Those points stack into three tiers, and each tier unlocks better financing terms. Fifty points gets a project a modest premium discount and a standard amortization. Seventy points bumps that discount up and extends amortization out to 45 years. A hundred points is the prize tier: a bigger premium discount, and an amortization stretching all the way to 50 years, though CMHC does convert that top tier to limited recourse rather than full recourse financing.
The amortization piece is where this gets interesting for cash flow. Stretching debt service over 50 years instead of 40 lowers the monthly payment on the same loan amount, which directly improves the debt coverage ratio a project needs to qualify in the first place. For a lot of small and mid-sized multifamily projects, hitting that top points tier is genuinely the difference between a deal that pencils and one that does not.
The Deadline That’s Quietly Reshaping the Math
On November 28, 2025, CMHC announced it was updating how it scores the energy efficiency category within MLI Select for new construction. The change moves the reference standard from the 2015 National Building Code and 2017 National Energy Code for Buildings, which is what most builders and energy modellers across the country have worked with for years, to the newer 2020 versions of both codes.
That sounds like a technical footnote. It is not. CMHC built in a transition window so projects already underway would not get blindsided, and that window closes on September 30, 2026. CMHC’s own program page confirms it directly: the energy efficiency attestation form built around the 2015 and 2017 codes is only available until that date. After it, every new construction file gets scored against the 2020 baseline instead.
The reason this matters comes down to a simple mechanical fact. The 2020 building and energy codes are themselves stricter than the versions they replace. A building designed to beat the 2015 code by a wide margin might only modestly outperform the 2020 code with the identical design, because the bar it is being measured against has moved up. Same building, same insulation, same windows, same mechanical systems. Fewer points.
Energy efficiency is usually the category that carries a project from the middle tier into the top one. Affordability points have a practical ceiling tied to how many units a project can realistically commit to below-market rents without breaking the underlying economics. Accessibility points are real but bounded by what a given floor plan and lot size can physically support. Energy efficiency is the lever with the most room to move, which is exactly why a tougher reference standard lands hardest there.
What This Actually Means on a Real Project
Take a multifamily project that comfortably clears 100 points today under the current 2015/2017 energy standard, earning the full 50-year amortization and the deepest premium discount available. Score that same design against the 2020 baseline after September 30, and industry underwriters who work with the program regularly are already flagging that identical projects are landing closer to the 70 to 95 point range instead. That is not a rounding error. It is potentially the difference between a 50-year amortization and a 45-year one, which on a multimillion-dollar loan shows up as a real, ongoing difference in monthly debt service and in how comfortably the deal clears CMHC’s minimum debt coverage requirement.
None of this means the program is getting harder across the board. CMHC has been clear that the affordability and accessibility scoring, along with the underlying three-tier structure itself, are staying exactly as they are. What is changing is the reference point for one category, the one that has historically done the most work in pushing a well-designed project from good financing into the best available financing.
What Investors Should Actually Do With This
If you have a multifamily project anywhere in active design, permitting, or early construction right now, the practical question is timing. Projects that can complete their energy modelling and submit their attestation against the 2015 and 2017 codes before September 30 lock in the standard most designers and energy consultants already know how to hit. That is a real, dated opportunity, not a marketing deadline.
If your project will not be ready to file until late this year or into 2027, chasing the old standard is probably the wrong move. Design against the 2020 codes from the outset, rebuild your proforma assuming a somewhat lower energy score, and figure out honestly whether the 70-point tier, which still comes with meaningfully better terms than the base level, gets your numbers where they need to be. For a lot of projects it will. For a smaller number of tightly margined deals, particularly smaller five to eight unit builds where there is less room to make up the gap through affordability commitments, it might mean the difference between a project that qualifies for the top tier and one that does not.
Either way, the conversation to have this month is with whoever is doing your energy modelling. Ask directly which code they are scoring against, and ask your CMHC-approved lender or specialist whether hitting the September 30 attestation date is realistic for where your project actually stands. If the honest answer is no, that is useful information now, not in October when the option has already closed.
It is also worth remembering this program has moved before and will likely move again. CMHC reworked MLI Select’s premium structure once already in the past two years on top of this energy code shift. The underlying lesson for any investor using CMHC-insured financing as part of a growth strategy is to treat the current rules as a snapshot rather than a fixed target, and to build relationships with lenders and energy consultants who track these changes closely enough to flag them before a deadline becomes a surprise.
For most Canadian real estate investors, this deadline will not affect a single deal this year. But for anyone with a multifamily project on the horizon, five units or five hundred, it is worth five minutes with your lender before the end of September.
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