Working from home costs something: a share of the heating, the electricity, the rent, the internet. Part of that can be taken off your taxable income — but the conditions are tighter than most people think, and they changed after the pandemic. Here is what still holds, federally and in Quebec.
The simplified pandemic method is gone
During the pandemic you could claim a flat amount for each day worked from home, with no receipts and no form signed by your employer. That was the "temporary flat rate method". It no longer exists: the Canada Revenue Agency states that the temporary flat rate method does not apply to the 2023 and later tax years.
That leaves one route: the detailed method. Your actual expenses, your actual receipts, and a form filled out by your employer. It is more demanding, but it is the only option.
Who qualifies for the deduction
The key word here is "required". The deduction is not attached to the fact of working from home: it assumes your job forces you to pay these costs out of your own pocket.
Federally, the CRA requires that all of these conditions be met:
- your employer required you to work from home;
- you had to pay for the expenses related to that work space yourself;
- you worked more than 50% of the time in that space for a period of at least four consecutive weeks in the year — or else the space is used only to earn your employment income and you use it regularly to meet clients;
- the expenses are used directly in your work;
- your employer completed and signed Form T2200.
One detail rules out a lot of people: an expense reimbursed by your employer cannot be deducted. If your employer already pays you an allowance for your internet access, you cannot deduct that portion on top of it.
In Quebec the logic is the same, but the forms are different. Revenu Québec requires that you work mainly from home, meaning more than 50% of the time, that your employer give you Form TP-64.3 (General Employment Conditions) and that you attach Form TP-59 to your provincial return.
These rules are for employees. If you are self-employed or incorporated, your expenses follow different rules; our article on salary versus dividends when you are incorporated covers the other big tax decision in those situations.
What you can deduct, and what you cannot
This is where most of the mistakes happen. The CRA's list is short, and it separates two profiles: the ordinary salaried employee, and the commission employee — someone whose pay depends in part on the sales they close.
| Expense | Salaried employee | Commission employee |
|---|---|---|
| Electricity, heat, water | Yes | Yes |
| Rent paid for a house or apartment | Yes | Yes |
| Home internet access fees | Yes | Yes |
| Maintenance and minor repairs | Yes | Yes |
| Utilities portion of condominium fees | Yes | Yes |
| Home insurance | No | Yes |
| Property taxes | No | Yes |
| Lease of a cell phone, computer or tablet | No | Yes |
| Mortgage interest and mortgage payments | No | No |
| Home internet connection fees | No | No |
| Furniture: desk, chair, filing cabinet | No | No |
| Capital expenses: windows, flooring, furnace | No | No |
| Wall decorations | No | No |
Two traps come up constantly. First: internet access fees are deductible, but connection fees are not. The monthly subscription, yes; getting the line installed, no. Second: furniture does not belong anywhere in this calculation. The ergonomic chair you bought for remote work is not deductible, even if it is used only for work.
How to calculate the work-related share
You do not deduct your whole electricity bill, only the fraction matching your work space. The CRA's calculator applies two rules, depending on the type of space.
A room used only for work
You compare the areas, and that is it. A room of 10 m² in a 100 m² home is 10% of the eligible expenses.
A shared common space
A corner of the dining room or the kitchen table is a common space: time is added to the area ratio. That same 10% is multiplied by the share of hours of work use out of the 168 hours in a week. At 40 hours of work per week, that is 40 ÷ 168, or about 24% of the time — so 10% × 24%, roughly 2.4% of the expenses.
The gap between the two situations is huge, and it is deliberate: a kitchen table is also where you eat supper.
What the deduction is actually worth
A deduction is not a refund. It lowers the income your tax is calculated on. What you save is therefore your marginal rate — the rate that hits the last dollar you earn — and not 100% of the expense.
Take a $70,000 salary in Quebec. At that income level, our net salary calculator gives a combined marginal rate of about 36%. So an eligible expense of $1,500 saves you around $540 in tax, not $1,500.
Here is what that salary looks like, deduction by deduction, before any remote-work claim:
| What gets withheld | Annual gross | Share of gross |
|---|---|---|
| Federal tax | −$6,253 | 8.9% |
| Provincial tax | −$7,175 | 10.3% |
| QPP | −$4,190 | 6.0% |
| Employment Insurance | −$896 | 1.3% |
| QPIP | −$301 | 0.4% |
| Total withheld | −$18,815 | 26.9% |
| Annual net | $51,185 | 73.1% |
The higher your income, the more the same deduction is worth, because the marginal rate climbs. Conversely, if your income is already low enough that you pay almost no tax, it is worth close to nothing.
Two forms, two returns: the practical steps
In Quebec you file two income tax returns, and the deduction is claimed twice, with different forms on each side.
- Ask your employer for Form T2200 for the federal return, and Form TP-64.3 for Quebec. Without those two signed forms, the deduction is impossible.
- Check that you clear the 50% of working time at home.
- Keep your bills for the year: rent, electricity, heating, internet, maintenance.
- Measure your work space and the total area of your home, in square metres or square feet.
- Note your weekly working hours if the space is a shared one.
- Federally, do the math on Form T777 and carry the total to line 22900 of your return. In Quebec, attach Form TP-59.
The CRA says it plainly: most employees cannot deduct employment expenses. It is the exception, not the rule — and the piece that decides everything is the form signed by your employer.
Frequently asked questions
Can I deduct home office expenses if I work from home by choice?
No. The Canada Revenue Agency requires that your employer asked you to work from home, and that it completes and signs Form T2200. In Quebec you also need Form TP-64.3. Without those signed forms, voluntary remote work gives you no right to the work-space-in-the-home deduction.
Is office furniture deductible?
No. Furniture — desk, chair, filing cabinet — is on the CRA's list of expenses that cannot be claimed, along with mortgage interest, capital expenses and wall decorations. Home internet access fees are deductible, but connection fees are not.
What is a $1,500 deduction worth?
It is worth your marginal rate, not the full amount. On a $70,000 salary in Quebec, the combined marginal rate is about 36%, so an eligible expense of $1,500 cuts your tax by roughly $540. The higher your income, the more the same deduction is worth.
Do I have to claim it twice, federally and in Quebec?
Yes. Each level of government has its own forms. Federally, your employer completes Form T2200, the math is done on Form T777, and the total is carried to line 22900 of the return. In Quebec, your employer completes Form TP-64.3 and you attach Form TP-59 to your provincial return.
How is the deductible share of my expenses calculated?
You compare the area of the work space with the area of your home: a room of 10 m² in a 100 m² home gives 10%. If the space is a shared one, such as a kitchen table, that percentage is multiplied by the share of working hours out of the 168 hours in a week, which cuts the deductible amount sharply.