Occupancy Fee Calculator
An occupancy fee means different things in different transactions, and each has its own math. Buyers of pre-construction condos pay a monthly occupancy fee between interim occupancy and final closing. Commercial tenants reckon occupancy by the square foot over a lease term. Hotels and vacation rentals quote per-day occupancy, sometimes with per-guest surcharges. This calculator covers all three: condo pre-construction fees with every input editable, commercial lease occupancy from area and rate, and hotel stay occupancy from daily rates and guest counts.
Monthly fee between interim occupancy and final closing: interest on the unpaid balance, plus estimated property tax, plus condo fees.
Occupancy over a lease term: area times the monthly rate per square foot, plus monthly maintenance, times the number of months.
The per-day cost of occupying the room: base daily rate times days, plus a per-person per-day surcharge times occupants times days.
Quick Answer
An occupancy fee is what you pay for the right to occupy a space, and the math depends on the deal. For a $500,000 pre-construction condo (800 sq ft, 15% deposit, 6.09% interest, 1% tax, $0.32 per sq ft condo fees) the calculator returns $2,829.54 a month, split into interest, tax, and condo-fee parts. The same page handles a commercial lease (2,000 sq ft at $2.50 a month plus $300 maintenance for 12 months: $63,600) and a hotel stay ($100 a day for 5 days, 2 guests, $20 per-guest daily surcharge: $700).
💡 Key takeaways
- Condo interim occupancy fees have three statutory parts: interest on the unpaid balance, estimated property tax, and projected condo fees. They are carrying costs, not equity.
- In Ontario the fee is capped by law at those three parts added together; your builder cannot charge more than the total.
- Commercial occupancy is simpler: area times rate per square foot, plus maintenance, times months.
- An occupancy fee is a payment. An occupancy rate is a percentage of booked nights or units. They are unrelated.
How the three fee modes work
Pick the tab that matches your situation. Each mode asks only for its own inputs, validates them separately, and explains every input with a tooltip. Switching tabs clears the previous result so you never mix figures from two different deals.
Condo pre-construction: the interim occupancy fee
Between interim occupancy (you can move in) and final closing (title transfers), a pre-construction buyer pays the builder a monthly fee instead of a mortgage. The fee has three parts, and in Ontario the Condominium Act caps it at their total: interest on the unpaid balance at the prescribed rate, estimated monthly municipal tax, and the projected monthly condo fee. The deposit you have already paid reduces the balance that accrues interest, which is why the deposit percentage is editable here. Because the mortgage only begins at final closing, these payments buy you time in the unit, not equity in it, a distinction a construction mortgage calculator makes clear when you model what the real mortgage will cost once it starts.
Commercial lease: occupancy by the square foot
Commercial tenants quote occupancy as area times a monthly rate per square foot. The calculator adds any monthly maintenance or service charge, then multiplies by the lease duration in months for the full-term total. Watch the units: listings usually quote annual rates, so divide by 12 before entering the monthly figure, and keep CAM and other pass-throughs in the maintenance field rather than the rate. When a landlord tacks on move-in or administrative charges, a lease fee calculator helps you account for those one-off costs separately, and a build-to-suit lease calculator breaks down custom-built space where construction costs feed the rent.
Hotel stay: the per-day cost of the room
This mode estimates what occupying the room costs per day: the base daily rate times days, plus a per-person per-day surcharge times occupants times days. Note the scope honestly: hotels more often charge an occupancy tax (a bed tax set by the jurisdiction), while this tool estimates the room-occupancy fee some vacation rentals and extended-stay properties quote, including extra-guest surcharges. For the guest side of a stay, from gratuities to incidentals, a hotel room tip calculator covers the costs this fee estimate leaves out.
The condo fee formula, part by part
The monthly interim occupancy fee is the sum of three independently computed parts. Unpaid balance is purchase price times one minus the deposit share. Interest is that balance times the annual rate, divided by 12. Tax is the purchase price times the annual tax rate, divided by 12. Condo fees are the per-square-foot monthly rate times the unit size.
Unpaid balance = Purchase price × (1 − Deposit % / 100)
Interest part = Unpaid balance × (Interest % / 100) / 12
Tax part = Purchase price × (Tax % / 100) / 12
Condo part = Fee per sq ft per month × Unit sq ft
Monthly occupancy fee = Interest part + Tax part + Condo part
The annualized figure the tool shows is the monthly fee times 12. It is a straight multiplication for budgeting, not a projection: rates and fee schedules can change during a long interim occupancy.
Worked example: a $500,000 pre-construction condo
A buyer takes interim occupancy of an 800 sq ft unit priced at $500,000, with 15% already paid in deposits, a 6.09% interest rate on the balance, 1% property tax, and $0.32 per sq ft in monthly condo fees:
- Unpaid balance: 500,000 × 0.85 = $425,000.00
- Interest portion: 425,000 × 0.0609 / 12 = $2,156.88 / month
- Tax portion: 500,000 × 0.01 / 12 = $416.67 / month
- Condo fees: 0.32 × 800 = $256.00 / month
- Monthly occupancy fee: $2,829.54 (annualized: $33,954.50)
Enter these values in the condo tab and the calculator reproduces the breakdown exactly. Two honest footnotes: the tool sums the unrounded parts, so the displayed monthly total ($2,829.54) is one cent less than the sum of the three rounded rows ($2,156.88 + $416.67 + $256.00 = $2,829.55). And the interest portion dominates at roughly three-quarters of the fee, which is why the builder's rate deserves the most scrutiny.
What dominates the monthly fee
When occupancy fees end
Condo interim occupancy fees end at final closing, when title transfers and the mortgage begins. The gap between interim occupancy and closing can last a few months in a small project or well over a year in a delayed high-rise, which is why the annualized figure matters for budgeting: a $2,829.54 monthly fee running 18 months is over $50,000 of carrying cost that builds no equity. Commercial lease occupancy fees run for the lease term you enter. A hotel stay fee is simply the stay.
Occupancy fee is not occupancy rate
Search results mix these two constantly, so here is the clean split. An occupancy fee is money paid for occupying a space: dollars per month or per day. An occupancy rate is a percentage: booked nights divided by available nights (hotels, short-term rentals) or occupied units divided by total units, times 100. If you were looking for the rate, the formula is booked days divided by available days, multiplied by 100. This page calculates fees, not rates.
What other fee estimators get wrong
The best-known condo interim-occupancy explainers describe the three-part formula correctly but leave you to do the arithmetic, or they hardcode their assumptions: a fixed deposit percentage, a fixed interest rate, a fixed tax estimate. If your builder's rate differs, their answer is wrong and you cannot fix it. This calculator makes every assumption editable and shows each component's monthly cost separately, so you can see whether the interest, the tax, or the condo fees dominate your payment. The commercial-lease tools in the field quote annual per-square-foot rates with NNN pass-through analysis but never roll the result into a plain monthly and full-term total. The hotel cost calculators in the field focus on taxes and resort fees for travelers, not per-guest surcharges, and none of them disentangle the fee-versus-rate confusion this page addresses up front.
Frequently asked questions
The monthly amount a pre-construction buyer pays the builder between interim occupancy (when you can move in) and final closing (when title transfers). It covers interest on the unpaid balance, estimated property tax, and condo fees, and it is capped by law in Ontario at the total of those three parts.
No. They are carrying costs, similar to rent. They do not reduce the purchase price, shrink the mortgage you will need at closing, or build equity.
Until final closing. Depending on the project this can be a few months or, in delayed high-rises, well over a year. Budget the annualized figure the calculator shows, not just the monthly one.
The tool adds the three unrounded components and rounds only the final total. The displayed rows are each rounded for readability, so adding the rounded rows can differ by a cent from the true total. The tool's figure is the correct one.
Yes, use the Commercial lease tab: area times the monthly rate per square foot, plus monthly maintenance, times the number of months. Remember that listings usually quote annual rates, so divide by 12 before entering the monthly figure.
An occupancy fee is a payment for occupying space, in dollars per month or per day. An occupancy rate is the percentage of available nights or units that are booked. They share a word and nothing else.
The interest rate and fee schedule are set by the builder in the purchase agreement and are rarely negotiable after signing, which is why estimating them before you commit matters. In Ontario the statute caps the fee, so anything above the three-part total is challengeable.
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References
- Condominium Authority of Ontario. Pre-construction Condos: Interim Occupancy. Accessed October 23, 2026.
- Arthur Zhao. Interim Occupancy Fees on Pre-Construction Condos: The Phantom Rent Explained. Accessed October 23, 2026.
- Arthur Zhao. Hidden Pre-Construction Closing Costs: Levies, Property Tax, Reserve Fund, Hook Fees. Accessed October 23, 2026.
- Arthur Zhao. Pre-Construction Occupancy Fees Explained: 6 Months to 2 Years of Phantom Rent. Accessed October 23, 2026.
- Platinum Condo Deals. Everything You Should Know about Interim Occupancy in Canada. Accessed October 23, 2026.
- Platinum Condo Deals. How to Calculate ROI on a Pre-Construction Condo. Accessed October 23, 2026.
- Pierre Carapetian. Interim Occupancy Period Meaning: Pre-Construction Condo. Accessed October 23, 2026.
- LegalClarity. How to Calculate Commercial Lease Rates: NNN, Gross and More. Accessed October 23, 2026.
- Government of Ontario. Condominium Act, 1998. Accessed October 23, 2026.
- SpeedCalcs. Hotel Cost Per Night Calculator: Total and Per Person. Accessed October 23, 2026.