First, Canadian real estate investors face capital gains tax on every profitable disposition. At the top marginal rate in Ontario, that’s roughly 27% on the taxable portion of the gain. Therefore, smart structuring can defer, reduce, or spread that liability — legally. Here are the strategies that matter for commercial and investment property owners.
The Basics: How Capital Gains Are Taxed
Specifically, calculate capital gains as proceeds minus adjusted cost base minus selling costs. In 2026, the inclusion rate includes 50% of the gain in taxable income. As a result, your marginal rate taxes that portion. For an Ontario investor in the top bracket, the effective tax on the total gain reaches approximately 26.8%.
Example: For instance, buy a building for $1M (ACB $1M after CCA recapture adjustment). Sell for $1.5M. Capital gain = $500K. Taxable portion (50%) = $250K. At 53.53% marginal rate in Ontario = $133,825 tax.
Principal Residence Exemption
If the property serves as your principal residence for every year you owned it, the gain stays tax-free. For multi-unit properties where you live in one unit and rent others, only the portion you occupy qualifies. In particular, keep detailed records — CRA audits principal residence claims aggressively.
Capital Gains Reserve
Likewise, if you take back a vendor-take-back mortgage, you can spread the capital gain over up to 5 years. In addition, recognize a minimum of 20% of the gain each year. This strategy works well when you sell to a buyer who can’t get full financing. You become the lender and defer tax.
Section 85 Rollover
Transferring property into a corporation? Specifically, Section 85 lets you defer the capital gain by electing a transfer price equal to your ACB. The corporation inherits your cost base. Instead, you take back shares with a value equal to the property’s FMV. However, you defer the gain until you sell the shares. This is the primary strategy for incorporating a real estate portfolio without triggering immediate tax.
Replacement Property Rules (Section 44)
Sell one investment property and buy another within 12 months (24 months with CRA extension)? For example, Section 44 lets you defer the gain by rolling it into the replacement property’s cost base. Use both properties for the same or similar purpose. In particular, this approach works especially well when upgrading multi-family assets — sell a 12-unit and buy a 30-unit, defer the gain.
Incorporation: Holdco Strategy
Holding commercial real estate inside a Canadian-controlled private corporation (CCPC) offers two tax advantages:
- Small business deduction: First, active rental income from 5+ full-time employees may qualify for the small business rate (12.2% in Ontario) instead of the general corporate rate (26.5%).
- Capital dividend account: Second, the non-taxable half of capital gains flows into the CDA, and shareholders can receive it tax-free.
However, rental income from passive property holdings faces the high corporate rate with a refundable tax mechanism. The integration works but requires disciplined planning.
Frequently Asked Questions
Can I avoid capital gains tax by never selling?
Yes — you can defer tax indefinitely by holding and refinancing instead of selling. First, borrow against equity, pull out tax-free cash, and let the heirs get a stepped-up cost base on death. In short, this is the ultimate deferral strategy.
What about the lifetime capital gains exemption?
The LCGE does not apply to real estate rentals or commercial property. Instead, it’s available for qualifying small business corporation shares, farm property, and fishing property. Real estate doesn’t qualify unless it’s an active business.
Does selling to a family member avoid tax?
No. As a result, CRA deems non-arm’s-length transfers to occur at fair market value. Therefore, you cannot sell to your child at a discount to avoid capital gains. CRA will assess based on FMV, and you’ll owe tax on the full gain.