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Moved Out of Your Home and Started Renting It? Here's What Most Homeowners Don't Know.
You bought a home for $500,000.
A few years later, it's worth $1.2 million.
You get married, relocate for work, buy a larger home, or decide to keep the property as an investment and rent it out.
Most Canadians assume nothing significant has happened from a tax perspective.
After all, you didn't sell the property.
Unfortunately, that's not how the Canada Revenue Agency sees it.
Under Canada's tax rules, converting a principal residence into a rental property can trigger what is known as a deemed disposition. In simple terms, CRA may treat you as though you sold the property at fair market value and immediately bought it back on the same day, even though no actual sale occurred.
For many homeowners, this comes as a complete surprise.
The good news is that the Income Tax Act provides a planning opportunity known as the Section 45(2) Election. When used properly, it can preserve flexibility, protect valuable principal residence exemption years, and potentially save a significant amount of tax in the future.
Over the years, I've seen homeowners save substantial amounts of tax with a properly planned Section 45(2) election. I've also seen situations where someone filed the election because they read about it online, only to discover later that it wasn't the best strategy for their circumstances.
Like most tax planning opportunities, the election itself is not the goal.
The goal is paying the least amount of tax legally possible.
What Is the CRA Section 45(2) Election?
Section 45(2) of the Income Tax Act allows a homeowner to elect that a change in use from a principal residence to a rental property not be treated as a change in use for tax purposes.
Without the election, CRA may consider you to have disposed of the property when it becomes a rental.
With the election, that deemed disposition can generally be deferred.
In practical terms, the election may allow you to:
- Avoid an immediate deemed disposition
- Defer certain tax consequences
- Preserve future principal residence exemption opportunities
- Maintain flexibility if your circumstances change
For homeowners converting a former residence into a rental property, it is often one of the first planning opportunities worth evaluating.
What Is a Deemed Disposition?
Most people understand that capital gains tax is triggered when a property is sold.
A deemed disposition is different.
Under Canada's change-in-use rules, certain events are treated as a sale even though ownership never changes.
If you move out of your home and begin renting it to tenants, CRA may treat you as though you:
- Sold the property at fair market value;
- Immediately repurchased the property at the same value; and
- Started a new ownership period as a rental property.
No money changes hands.
No lawyer is involved.
No sale agreement exists.
Yet for tax purposes, a disposition may have occurred.
This is exactly why Section 45(2) exists.
When Does a Section 45(2) Election Make Sense?
The election is commonly used when a homeowner moves out but wants to keep the property.
Some of the most common situations include:
Job Relocation
You accept a position in another city and decide to rent your home while determining whether the move is permanent.
Marriage or Moving in With a Partner
One spouse moves into the other's property and rents out their former residence.
Purchasing a Larger Home
You buy a new home but keep your existing property as a rental investment.
Temporary Work Assignment Outside Canada
You leave Canada for employment and plan to return in the future.
Delaying a Sale
You believe the market will continue to appreciate and decide to rent the property rather than sell immediately.
Each of these situations can create planning opportunities under Section 45(2).
The Four-Year Extension That Can Save You Thousands in Tax
One of the most valuable features of the election is something many homeowners have never heard of.
In certain situations, a property can continue to qualify for principal residence treatment for up to four additional years after it has been converted into a rental property.
This surprises many people.
A property can be producing rental income while still preserving valuable principal residence exemption years.
For a property that continues to appreciate, those additional years can become extremely valuable.
However, this is where many taxpayers misunderstand the rules.
Can You Have Two Principal Residences?
No.
This is one of the biggest misconceptions surrounding the Section 45(2) election.
The election does not allow you to claim two principal residences.
It does not create a second principal residence exemption.
It does not allow you to double-dip.
A family unit can generally designate only one principal residence for any given taxation year.
Think of the election as buying yourself flexibility.
It preserves the option to decide later which property should receive the principal residence designation.
That flexibility can become incredibly valuable when property values begin to diverge.
A Simple Example
Let's say you purchased a Toronto condo for $500,000.
Several years later, it is worth $900,000.
You get married, start a family, and purchase a detached home in the suburbs.
Instead of selling the condo, you decide to keep it as a rental property.
At this point, many homeowners focus entirely on rental income, mortgage payments, and property appreciation.
Very few stop to evaluate the tax consequences of the conversion.
Yet that single decision could affect how hundreds of thousands of dollars of future appreciation are taxed.
A properly structured Section 45(2) election may preserve valuable planning opportunities.
A missed election could limit those opportunities later.
This is why the analysis should happen before the conversion, not years afterward.
When a Section 45(2) Election Can Be a Bad Idea
One of the biggest mistakes I see is the assumption that every homeowner should automatically file the election.
That simply isn't true.
Sometimes filing the election is absolutely the right move.
Sometimes it isn't.
Before filing, you should consider:
Which property is expected to appreciate the fastest?
Future growth often matters more than current value.
Do you own multiple properties?
Cottages, vacation homes, and investment properties can significantly change the analysis.
How long will the property remain a rental?
A two-year rental conversion is very different from a twenty-year investment property.
Will you eventually move back?
Temporary relocations often produce different planning opportunities than permanent moves.
What is your long-term exit strategy?
The answer may affect how principal residence years should ultimately be allocated.
The objective is not to preserve the most principal residence years possible.
The objective is to maximize the overall tax savings available to your family.
The Biggest Mistake Homeowners Make
Many homeowners file the election correctly and then accidentally undermine its benefits.
The most common example is claiming Capital Cost Allowance (CCA) on the building.
While depreciation may create a current-year tax deduction, it can negatively affect the planning opportunities associated with the election.
I've seen situations where a relatively small annual deduction ultimately created a much larger future tax cost.
This is why rental property planning should never focus on a single year's tax return.
Good tax planning looks at the entire ownership period.
What If You Forgot to File the Election?
This happens more often than you might think.
A homeowner converts a property into a rental.
Several years pass.
The property continues to appreciate.
Only later does someone discover that no election was ever filed.
Depending on the circumstances, CRA may accept a late-filed election.
However, relief is not automatic.
The longer the issue remains unaddressed, the more difficult it may become to correct.
If you've already converted a principal residence into a rental property and are unsure whether an election was filed, it is worth reviewing the situation as soon as possible.
How to File a Section 45(2) Election
Unlike many CRA elections, there is no prescribed form.
The election is generally made through a signed letter submitted to CRA.
The letter should identify:
- The taxpayer
- The property address
- The date the change in use occurred
- The election being made under Subsection 45(2) of the Income Tax Act
While the process itself is relatively simple, determining whether the election should be filed often requires a more detailed analysis.
Quick Section 45(2) Checklist
Before converting your principal residence into a rental property, ask yourself:
✓ Has the property appreciated significantly?
✓ Do I expect to move back into the property?
✓ Do I own a cottage or other real estate?
✓ Which property is likely to appreciate the most over the next decade?
✓ Am I planning to claim CCA?
✓ Have I considered future principal residence designations?
✓ Have I reviewed the strategy with a tax professional?
If the answer to the last question is no, there may be planning opportunities worth exploring.
Final Thoughts
The CRA Section 45(2) Election is one of the most powerful and misunderstood tax planning opportunities available to Canadian homeowners.
When used properly, it can help preserve flexibility, defer tax consequences, and protect valuable principal residence exemption years.
However, filing the election should never be automatic.
The right answer depends on your future plans, expected property appreciation, family circumstances, and overall tax position.
At MiAccounting, we review these situations regularly for homeowners, physicians, pharmacists, business owners, and real estate investors throughout the GTA.
If you're thinking about converting your principal residence into a rental property, don't assume the tax consequences are straightforward.
Sometimes the best tax planning happens before the paperwork is filed.
A short review before the conversion takes place can often uncover planning opportunities that are difficult, or sometimes impossible, to fix later.
Thinking about renting out your home? Contact MiAccounting & Income Tax Inc. to review whether a Section 45(2) election makes sense for your situation and to ensure you're making the most tax-efficient decision possible.
