Home Office Deduction for Self-Employed Canadians (T2125)
If you work from home as a freelancer or sole proprietor, a portion of your housing costs is a legitimate business expense. Here is how CRA calculates it, what qualifies, and where it goes on your T2125.
Quick Answer
Divide your workspace square footage by total home square footage. Multiply that percentage by your eligible home expenses (rent, utilities, insurance, mortgage interest, property tax). Enter the result in Part 7 of T2125 (line 9270). The deduction cannot create a loss — any excess carries forward to next year.
The two CRA eligibility conditions
To claim workspace-in-home expenses, your workspace must meet at least one of these two conditions:
Condition 1 — Principal place of business
Your home is where you do most of your work. If you freelance from your home office and have no other office, this is you. You do not need to use the workspace exclusively for business — you just need to do the majority of your work there.
Condition 2 — Exclusive use for meeting clients
The workspace is used exclusively for business purposes AND you use it on a regular and continuous basis to meet clients, customers, or patients. This applies to, for example, a therapist or tutor who sees clients in a dedicated home room.
Most freelancers qualify under Condition 1 without needing exclusive use. If your "office" is a desk in a corner of your living room, you likely still qualify — CRA allows this as long as it is your principal place of business.
What expenses qualify
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How to calculate your deduction
The square footage method is the most common approach:
Example calculation
- Home office: 120 sq ft
- Total home: 1,200 sq ft
- Business-use percentage: 120 ÷ 1,200 = 10%
- Annual rent: $24,000 → $2,400 deductible
- Utilities + insurance: $4,000 → $400 deductible
- Total workspace deduction: $2,800
For condos and apartments, use the total square footage of your unit (not the building). For houses, you can use either all livable space or a reasonable subset — CRA expects a consistent method year over year.
The carry-forward rule
Your workspace-in-home deduction cannot reduce your self-employment income below zero. You cannot use it to create a business loss. If your deduction would exceed your net business income for the year, the unused portion carries forward indefinitely to future tax years — it is not lost.
This matters most in early years when revenue is low. Track your carry-forward amount separately so you remember to apply it when your income grows.
Where it goes on T2125
The workspace-in-home deduction is in Part 7 of T2125. You list your home expenses (rent, mortgage interest, taxes, insurance, utilities), enter your business-use percentage, and the form calculates the allowable deduction. The final deductible amount flows to line 9270.
Internet service is a slightly different deduction — most self-employed people claim internet directly as a business expense on T2125 (often at 50–100% depending on business vs personal use) rather than running it through the workspace calculation. Check the T2125 Guide for the full line-by-line breakdown.
A note on home ownership and the principal residence exemption
Claiming home office expenses on T2125 does not affect your principal residence exemption when you sell. The exemption is impacted only if you claim CCA (capital cost allowance) on the business portion of your home — which most freelancers do not. Stick to operating expenses (rent, utilities, insurance, mortgage interest, property tax) and your principal residence exemption remains intact. If you are considering claiming CCA on your home, speak to a tax professional first.
This article is for informational purposes only and does not constitute tax advice. Tax rules can change — always verify with CRA or a qualified tax professional before filing.