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Advanced Strategies

Principal Residence Exemption: Complete Guide

12 min readUpdated December 2024

Tax-Free Home Sale

The principal residence exemption (PRE) allows you to sell your home tax-free. But there can only be one PRE per family per year, so planning is crucial when you own multiple properties.

What Qualifies as a Principal Residence?

A housing unit (house, condo, cottage, etc.) that you:

  • Owned (alone or jointly)
  • Ordinarily inhabited at some point during the year
  • Or that your spouse, former spouse, or child ordinarily inhabited

Types of Properties That Can Qualify

  • House, condominium, apartment
  • Cottage or vacation property
  • Mobile home or trailer
  • Houseboat
  • Share in a co-operative housing corporation

The One-Per-Family Rule

Critical rule: Only ONE principal residence per family unit per year.

Family Unit Includes

  • You
  • Your spouse or common-law partner
  • Your unmarried children under 18

This Means

  • If spouse owns cottage and you own city home, only one can be PRE each year
  • Must choose which property to designate for each year of ownership
  • Planning required when selling either property

The PRE Formula

The exemption is calculated using the "plus one" formula:

Exempt Gain = Capital Gain × (1 + Years Designated) / Years Owned

Why "Plus One"?

  • The extra year accounts for the fact you can't designate a property for the year of acquisition AND year of sale if buying a new home
  • Provides a one-year cushion when moving

Example

You owned your home for 10 years and designate it as PRE for 8 years:

  • Capital gain: $200,000
  • Exempt: $200,000 × (1 + 8) / 10 = $180,000
  • Taxable gain: $20,000

Reporting Requirements

Since 2016, you must report the sale and designation:

Form T2091

  • File with your tax return for year of sale
  • Required even if gain is fully exempt
  • Failure to file: Exemption may be denied

Schedule 3

  • Report the sale on Schedule 3 (Capital Gains)
  • Claim the exemption
  • Net gain should be zero if fully exempt

Important: Not reporting your home sale (even if tax-free) can result in a $8,000 penalty and denial of the exemption. Always file the required forms.

Multiple Property Strategy

When you own both a home and cottage:

Option 1: Designate Property with Larger Gain

  • Calculate potential gain on each property
  • Designate more years to property with larger gain per year
  • Use plus-one year on property you sell first

Option 2: Staggered Sales

  • Sell one property, use full exemption
  • Wait, then sell other property
  • Each gets full benefit of ownership years

Example Planning

Own city home (15 years) and cottage (15 years):

  • City home gain: $600,000
  • Cottage gain: $300,000
  • Designate city home for 10 years ($400/year of gain/year)
  • Designate cottage for 5 years ($200/year of gain/year)
  • Maximize total exemption on larger gain

Change in Use Rules

Converting Principal Residence to Rental

  • Deemed disposition at FMV when you change use
  • Can elect to defer gain (no immediate tax)
  • Election preserves PRE for up to 4 years after moving out
  • Cannot claim CCA on the property to preserve election

Converting Rental to Principal Residence

  • Deemed disposition at FMV
  • Capital gain on rental years is taxable
  • Future gain on PR portion is exempt

Land Size Limits

  • Half hectare (1.24 acres) included automatically
  • Excess land only included if necessary for use and enjoyment
  • Rural properties may need to justify larger land portion
  • Excess land may be taxable even if house is exempt

Special Situations

Flipping Properties

  • Frequent sales may be deemed business income, not capital gains
  • Business income is 100% taxable (no 50% inclusion)
  • PRE doesn't apply to inventory
  • Anti-flipping rule: Properties owned less than 12 months are business income

Inherited Properties

  • Receive property at FMV at death (usually)
  • Only your ownership period counts for your PRE
  • Cannot use deceased's designation years

Separation and Divorce

  • Transfer to ex-spouse is tax-free rollover
  • Ex-spouse inherits your designation history
  • Plan carefully who keeps the home

Common Mistakes

  • Not filing T2091: Required since 2016, even for tax-free sales
  • Both spouses claiming: Only one PRE per family per year
  • Renting part of home: May affect exemption proportionally
  • Not tracking ACB: Need accurate cost base for calculation
  • Ignoring anti-flipping: Short-term sales may not qualify

Calculating Adjusted Cost Base

Your ACB includes:

  • Purchase price
  • Land transfer taxes
  • Legal fees on purchase
  • Capital improvements (not repairs)
  • Not deductible: Ongoing maintenance, mortgage interest

Capital Improvements

Additions to ACB:

  • Renovations that add value (new kitchen, addition)
  • Replacement of major systems (roof, furnace)
  • Landscaping that adds permanent value

Provincial Considerations

The PRE is a federal rule, but provincial taxes also apply to any taxable portion:

  • Ontario, BC have additional property taxes (speculation, vacancy)
  • Quebec has slightly different rules for some situations
  • Always consider both federal and provincial implications

Questions About Principal Residence?

Our AI tax assistant can help answer specific questions about the principal residence exemption.

Ask the Tax Assistant

Disclaimer: Principal residence rules are complex, especially with multiple properties or changes in use. This guide provides general information. Consult a tax professional for specific situations.