Can I claim home office expenses as a freelancer in Canada?

Do I qualify? The two tests

The CRA allows the deduction if you meet one of these conditions:

1. Your home is your principal place of business. For most freelancers who work from home full-time, this is the test you meet. You do not need to see clients at home.
2. You use the space only to earn business income, and you use it on a regular and ongoing basis to meet clients, customers, or patients. This covers freelancers who work elsewhere but keep a dedicated home space for client meetings.

If you fail both — say you have a full-time office elsewhere and only occasionally answer emails from the couch — you cannot claim the deduction.

Which expenses can I deduct?

The CRA lets you deduct a business portion of:

• Maintenance costs such as heating, home insurance, electricity, and cleaning materials
• Property taxes
• Mortgage interest (not mortgage principal payments)
• Capital cost allowance (CCA) — with a major warning, below

If you rent, you can deduct the business portion of your rent plus any expenses related to the workspace. You cannot deduct the personal portion of any shared expense — only the business-use share.

How do I calculate the business portion?

Use a reasonable basis, such as the area of your workspace divided by the total area of your home. For example, a 15-square-metre office in a 100-square-metre home gives you a 15% business-use percentage, and you deduct 15% of each eligible expense.

If the space doubles as living space — the kitchen table, for instance — there is an extra step. Calculate the hours per day you use it for business and divide by 24, then multiply that by the area percentage. Working 8 hours a day at the kitchen table means multiplying your area percentage by 8 ÷ 24. If you run the business for only part of the week or year, reduce the claim accordingly.

Where do I claim it on my tax return?

Report your freelance income and expenses on Form T2125, Statement of Business or Professional Activities. Business-use-of-home expenses go on line 9945, and the form includes a "Calculating business-use-of-home expenses" chart that walks you through the math. Expenses claimed on line 9945 cannot be claimed anywhere else on the form.

What if my home-office expenses exceed my business income?

They cannot create or increase a business loss. The CRA caps your deduction at your net business income before these expenses — if the business earned $8,000 before home-office costs, you can deduct at most $8,000. The unused amount is not lost: you can carry it forward and deduct it in the next year, as long as you still meet one of the two qualifying conditions.

Why is claiming CCA on my home risky?

This is the one part of the home-office deduction that can cost you far more than it saves. Normally, your principal residence is exempt from capital gains tax when you sell it. But if you claim capital cost allowance (depreciation) on the business-use portion of your home, the CRA treats that portion as having changed use — and capital gains and recapture rules apply when you sell.

In plain terms: the few hundred dollars a year you save by depreciating your home office could expose tens of thousands of dollars of your home's appreciation to capital gains tax later. Most accountants advise freelancers to claim everything else and skip the CCA on the home itself. The CRA's own guidance flags this explicitly, so treat it as a deliberate decision, not a default.