Updated Checked by the Tax-Services.ca editorial team How we check
The home office tax deduction in Canada is for employees whose employer signs Form T2200 and who work from home more than half the time for at least four weeks in a row. The old flat rate shortcut is gone. The CRA has ended it from the 2023 tax year on, so real costs are all you can count.
The temporary flat rate method does not apply to the 2023 and later tax years.
Work space in the home expenses, Canada Revenue Agency, canada.ca
If you remember the flat rate from the pandemic years, forget it. Here’s what holds up now, what doesn’t, and what a claim is actually worth once you’ve done the paperwork, which is more than you’d think for the money involved.
Who qualifies for the home office deduction?
You need a signed T2200 from your employer. Without it, nothing else matters. Then one of two tests has to fit.
The first: you worked more than 50% of the time from your home work space across four weeks in a row or more. The second: you use the space only to earn employment income, and you use it regularly for meeting clients or other people in person. Most remote workers rely on the first.
A kitchen table counts only if the work space is a defined area. That’s where a lot of claims wobble. If your “office” doubles as the family dining room, be straight about how much of it is truly yours for work.
You can claim only what you paid during the period you worked from home. Not the whole year’s bills, unless the whole year qualified. If you had two separate stretches, you can claim for each.
What expenses can you claim?
| Expense | Salaried employee | Commission employee |
|---|---|---|
| Electricity, heat, water | Yes | Yes |
| Minor repairs and maintenance | Yes | Yes |
| Rent (renters only) | Yes | Yes |
| Home insurance | No | Yes |
| Property taxes | No | Yes |
| Mortgage interest and principal | No | No, as far as the CRA page shows |
| Furniture, decor, capital improvements | No | No |
You also claim only the share of each bill that matches your work space. A 10 square metre room in a 100 square metre home is 10%.
Office supplies are a separate claim. The CRA means things you use up at work, such as paper, ink, toner, pens and stamps. A printer, a desk or a chair doesn’t qualify. For phones, a salaried employee can deduct only work-related long distance calls.
What is a claim worth? A worked example
The costs here are invented for the sum. Say you rent for $1,800 a month and pay $200 a month for heat, water and electricity. That’s $24,000 over 12 months. Your work space is 10% of the home, and the whole year qualifies. The claim is $2,400.
A deduction isn’t a refund of $2,400. On an $80,000 salary in Ontario it lowers federal and Ontario tax by about $712, using basic personal amounts only. At $50,000 the same $2,400 saves roughly $531. The marginal tax rate calculator gives the rate on your next dollar, and the tax refund calculator shows how a deduction changes your result.
So a $712 saving for careful record keeping. Worth doing, but it won’t change your year.
What if you only worked from home part of the year?
Then you claim only that stretch. Take the same renter, but the employer sent everyone home from September to November, three months, and the T2200 covers just that period. Rent and utilities for those months are $6,000, and 10% of that is $600. You’d put $600 on the return, not $2,400.
The same goes if you go hybrid. Two days a week at home is 40% of the week, so you don’t meet the more-than-half test, and the claim is off the table unless your employer’s T2200 supports it another way. Don’t stretch the days to fit. If the CRA asks, the T2200 and your records have to agree.
How do you make the claim?
Ask your employer for the T2200 early. Some employers are slow, and you can’t file the claim without it. Then fill in Form T777S, the statement of employment expenses for working at home, and put the total on your return. Keep the bills and your measurements. You don’t send them in, but the CRA can ask.
Use the income tax calculator first if you want to see your tax with and without the deduction. To see what your pay looks like after all deductions, try the take-home pay calculator. Our guide to filing your taxes covers the rest of the return, and tax time goes faster when your bills are in one folder.
Mistakes and limits
Claiming without a T2200. It’s the most common problem, and a signed form isn’t optional.
Claiming twelve months when you worked at home for three. Only the eligible period counts.
Claiming mortgage interest as a salaried employee. The CRA page rules it out.
Self-employed people report on Form T2125 instead, and we haven’t covered those rules here. Our self-employed tax calculator gives an estimate, though it leaves out EI.
Sources, and how we checked them
Sections of the CRA‘s home office page for employees, read on 30 September 2026: the eligibility, expenses you can claim and calculation sections. The tax savings use the 2026 federal and Ontario rates in our engine. No level of government runs or endorses this site.
Frequently asked questions
Can I use the flat rate method for a home office?
No. The CRA states the temporary flat rate method is not available from the 2023 tax year onward.
Do I need a T2200 to claim home office expenses?
Yes. Your employer must complete and sign Form T2200, Declaration of Conditions of Employment.
How long must I work from home to claim?
More than 50% of the time from your work space for at least four consecutive weeks in the year, or use it only for work and regularly meet people there.
Can an employee claim mortgage interest?
No. The CRA lists mortgage interest and principal as not claimable for salaried employees.
Do I claim the whole bill for my rent or utilities?
No. Only the share that matches your work space, and only for the period you worked from home.
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