BC Multiplex Tax Guide: PTT, GST, and Rental Income
Three taxes hit a BC multiplex project at different stages. Get them right and you recover $73,000–$168,000 per project that most builders leave behind. Get them wrong and you pay taxes you legally didn't owe.
The three taxes at a glance
| Tax | When it applies | Amount (4-unit example) | Can it be reduced? |
|---|---|---|---|
| Property Transfer Tax (PTT) | At Land Title registration | $48,000 on $2.5M project | Yes — fully exempt for qualifying rental builds |
| Federal GST | On new construction cost | $120,000 on $2.4M project | Yes — $25,200–$120,000 rebate available |
| CRA income tax (rental) | Annually on net rental income | Marginal rate on net income | Partially — deductions reduce taxable income |
$48,000+
PTT exemption (purpose-built rental)
Non-stratified, 4+ units, 2025–2030 registration, 10-year rental covenant
Full PTT exemption guide →$25,200–$120,000
GST rebate (NRRP + purpose-built rental)
36% recovery on NRRP Rebate; 100% on qualifying purpose-built rental housing
Full GST rebate guide →T776
CRA rental income form
Reports net rental income; deduct mortgage interest, property tax, insurance, repairs
Rental income guide →1. Property Transfer Tax
PTT applies whenever property is registered at BC's Land Title Office. It is not due when you pull a building permit or break ground — it's due when title formally transfers or is registered for the first time.
The standard PTT rates
| Registration value | Rate |
|---|---|
| First $200,000 | 1% |
| $200,001 – $3,000,000 | 2% |
| Above $3,000,000 | 3% |
The purpose-built rental exemption
Non-stratified rental buildings with 4+ units, registered at Land Title between January 1, 2025 and December 31, 2029, and held as rental for 10 years via a registered covenant: full PTT exemption. The $48,000+ bill goes to zero.
The key constraint: strata multiplexes do not qualify. Build-to-rent, not build-to-sell.
Full PTT exemption guide: qualifying conditions and how to claim →2. Federal GST on new construction
GST at 5% applies to new residential construction in BC. On a $2.4M fourplex, that's $120,000 in federal tax. Two rebate programs can recover most or all of it.
NRRP Rebate: up to $6,300 per rental unit
The New Residential Rental Property Rebate returns 36% of the GST per rental unit, capped at $6,300/unit, with no purchase price ceiling. A fourplex with four rental units returns $25,200. File CRA Form GST524 within 2 years of first occupancy.
Purpose-built rental housing rebate: full GST recovery
The federal government announced in September 2023 a 100% GST rebate for new purpose-built rental housing with 4+ units. This eliminates the entire $120,000 GST bill on a qualifying fourplex. Qualifying conditions are more stringent — confirm eligibility with a CPA.
Full GST rebate guide: NRRP Rebate and federal purpose-built rental program →3. CRA rental income reporting
Once your multiplex is generating rental income, that income is taxable in Canada and must be reported annually on your T1 return using Form T776.
What counts as rental income
Gross rental income includes all amounts received from tenants: base rent, parking fees, laundry income, and storage fees. It does not include security deposits, which are not income until applied to unpaid rent or damages.
What you can deduct
| Deductible expense | Notes |
|---|---|
| Mortgage interest | Interest only, not principal repayment |
| Property taxes | Full annual property tax |
| Insurance | Building insurance; not title insurance premiums |
| Strata fees | Regular monthly fees, not special levies for capital improvements |
| Repairs and maintenance | Current-year repairs; capital improvements are CCA, not current deductions |
| Property management fees | Typically 8–12% of gross rent |
| Advertising and tenant placement | Listing fees, background check costs |
| Utilities (if paid by landlord) | Common area hydro, water in some configurations |
| Capital Cost Allowance (CCA) | Optional — usually not claimed. CCA at 4% on building value reduces current income but triggers recapture (a large income spike) when you sell. Most accountants advise against it for properties you intend to hold and eventually sell. |
The owner-occupied exception
If you live in one unit of your multiplex (house hacking), you can only deduct expenses proportional to the rented portion. On a fourplex where you live in one unit and rent three, you can deduct 75% of shared expenses like property taxes, insurance, and mortgage interest on the common building.
PTT estimate for a typical BC multiplex
| Registration value | Standard PTT | With rental exemption | Saving |
|---|---|---|---|
| $1.5M (triplex) | $28,000 | N/A (under 4 units) | — |
| $2.0M (fourplex) | $38,000 | $0 | $38,000 |
| $2.5M (fourplex) | $48,000 | $0 | $48,000 |
| $3.0M (sixplex) | $58,000 | $0 | $58,000 |
| $3.5M (sixplex) | $73,000 | $0 | $73,000 |
Purpose-built rental exemption requires non-stratified structure, 4+ units, Land Title registration 2025–2029, 10-year rental covenant.
Detailed guides
PTT Exemption Guide
The 4 qualifying conditions, the 92-day rule, what happens if you sell early, and how to claim on your PTT Return.
GST Rebate Guide
NRRP Rebate vs owner-occupant rebate, the self-supply rule for build-to-rent developers, and the 2023 purpose-built rental housing rebate.
Rental Income Guide
How rental income from a multiplex works: rents by unit size, vacancy assumptions, and what affects the net income calculation.
Run the proforma for your lot
Enter your address to see a site-specific multiplex proforma that factors in PTT exemption eligibility and estimated GST rebates.
Official government sources
Tax rules in this guide draw from CRA and BC Ministry of Finance publications. Always verify current rates and exemptions before filing.