Interim Occupancy Fees on Pre-Construction Condos: The Phantom Rent Explained

With a pre-construction condo, “able to move in” and “legally own” are two different dates. According to the Condominium Authority of Ontario (CAO), interim occupancy happens when the builder lets you take possession of your unit before the declaration is registered and title can be transferred to you. Until the whole building is registered with the Land Registry Office, the developer still holds title.

That window is the interim occupancy period. You are living in the unit, but in law it is still the builder’s, so what you pay is not a mortgage payment — it is an occupancy fee. This arrangement is specific to Ontario; buyers elsewhere in Canada generally do not encounter it.

The statutory formula: three parts, and a cap

Under section 80(4) of the Condominium Act, 1998, the monthly occupancy fee the builder charges shall not be greater than the total of these three amounts:

• (a) Interest on the unpaid balance — “interest calculated on a monthly basis on the unpaid balance of the purchase price at the prescribed rate.”
• (b) Estimated municipal taxes — “an amount reasonably estimated on a monthly basis for municipal taxes attributable to the unit.”
• (c) Projected common expenses — “the projected monthly common expense contribution for the unit,” i.e. the estimated condo maintenance fee.

Note the words “shall not be greater than”: the Act sets a ceiling. Add the three together and you have the maximum monthly phantom rent the builder is permitted to charge.

The interest piece — usually the biggest one

Of the three components, interest is typically the largest. Under the regulation made under the Condominium Act, 1998, the “prescribed rate” is the Bank of Canada’s most recently reported chartered bank administered interest rate for a conventional one-year mortgage, fixed as of the first of the month in which you assume interim occupancy.

That rate is applied monthly to the unpaid balance of the purchase price — the price minus the deposits you have already paid. The mechanics, illustratively (not a quote): unpaid balance × the prescribed rate ÷ 12 gives a payment-like monthly figure. A higher rate, or a smaller deposit (which leaves a larger unpaid balance), makes this part bigger. For your own number, use the official rate in effect the month you take occupancy — I will not invent one here.

It is easy to think, “I’ve moved in and I’m paying every month, so I must be paying down the place.” You are not. According to the Condominium Authority of Ontario, a buyer cannot make mortgage payments until the condo corporation is registered. The interest inside your occupancy fee goes to the builder and reduces none of your principal — you gain no ownership for it. That is exactly why it is called phantom rent: it feels like paying off your home, but it works more like renting the home you are about to buy. The longer interim occupancy runs, the more of this sunk cost you absorb.

This is the piece buyers most often underestimate. Per Tarion and the Condominium Authority of Ontario, interim occupancy can be as short as a few months or stretch to a year or more — especially on large projects registered in phases, where the building takes a long time to register. Some purchase agreements cap it at 24 to 36 months.

The key point: the registration timeline depends on the whole building’s progress and is outside your control. How many months of phantom rent you pay is largely not your call. When you budget, plan for the scenario where occupancy lasts well over a year — don’t price it off the optimistic occupancy date in the contract.

How to budget for it

• Separate two cash outflows: the monthly occupancy fee (paid through interim occupancy) and the one-time final closing costs (development charges, Tarion enrolment, utility hook-ups, and more) are different buckets — don’t blend them.
• Stress-test the long case: assume a higher rate and a longer occupancy period, then check your cash flow. If registration slips, this payment-like outflow simply runs longer.
• Bigger deposit, smaller interest: because the unpaid balance drives the interest, a larger deposit shrinks the interest portion of the fee.
• Get the line items early: before you sign, have your lawyer and agent confirm the estimated taxes, the projected common expenses, and exactly how the rate is set.

Q: What is an interim occupancy fee on a pre-construction condo?

It is an Ontario-specific fee. Between the date a pre-construction condo is ready to move into and the date the building is registered and you take title, there is an interim occupancy period. You can live in the unit, but the builder still owns it, so you pay a monthly occupancy fee (often called phantom rent). Under section 80(4) of the Condominium Act, 1998, it cannot exceed the total of interest on the unpaid balance, estimated municipal taxes, and the projected common expense contribution. Source: Ontario.ca, Condominium Authority of Ontario.

Q: Does the occupancy fee count as a mortgage payment or build equity?

No on both counts. During interim occupancy you do not yet hold title and cannot start your mortgage. According to the Condominium Authority of Ontario, a buyer cannot make mortgage payments until the condo corporation is registered. The interest portion of the fee is paid to the builder and reduces none of your principal, which is why it is called phantom rent — money out the door for zero ownership.

Q: How long can interim occupancy last?

Often a few months, but on large or phased projects it can run a year or longer, and some agreements cap it at 24 to 36 months. The length is driven by when the building registers, which the buyer cannot control. Source: Tarion, Condominium Authority of Ontario.

Q: How is the interest part of the occupancy fee set?

Under the regulation to the Condominium Act, 1998, the prescribed rate is the Bank of Canada’s most recently reported chartered bank administered interest rate for a conventional one-year mortgage, fixed as of the first of the month you assume occupancy, and applied monthly to the unpaid balance of the purchase price. A higher rate or a larger unpaid balance makes this portion bigger.