If you work from home as a Canadian freelancer or self-employed professional, you can deduct a portion of your home costs as a business expense on Form T2125. Here is exactly how it works, what qualifies, and how to calculate your deduction correctly.
Two Conditions to Qualify
To claim home office expenses on T2125, your workspace must meet at least one of the following:
- Principal place of business: Your home is where you primarily (more than 50% of the time) carry on your business. If you freelance from home and have no other office, this is you.
- Exclusive and regular use for meeting clients: The space is used exclusively to earn business income and on a regular, continuous basis to meet clients or customers.
Most work-from-home freelancers qualify under condition 1. You do not need to use the space exclusively for business — you just need to do the majority of your work from home.
Important: The COVID-era Temporary Flat Rate Method ($2/day) ended after the 2022 tax year. It was available to employees, and a flat rate was never available for self-employed individuals. As a freelancer, you use the detailed method only.
How to Calculate Your Home Office Deduction
Step 1 — Calculate your workspace percentage:
Measure the square footage of your dedicated work area. Divide by total home square footage.
Example: 120 sq ft office in a 1,200 sq ft home = 10% business use.
If the space also serves a personal function (a bedroom with a desk), apply an additional time factor: hours used for business ÷ 24 hours × the space percentage. The CRA accepts this dual-calculation method for shared spaces.
Step 2 — Apply the percentage to eligible expenses:
Multiply your business-use percentage by your total annual eligible home expenses.
Eligible Home Expenses
| Expense | Renters | Homeowners |
|---|---|---|
| Rent | ✅ Yes | N/A |
| Mortgage interest | N/A | ✅ Yes (not principal) |
| Property tax | N/A | ✅ Yes |
| Home insurance | ✅ Renter’s insurance | ✅ Homeowner’s insurance |
| Utilities (heat, electricity, water) | ✅ Yes | ✅ Yes |
| Maintenance and repairs | ✅ Portion you pay | ✅ Yes (general maintenance) |
| Cleaning supplies | ✅ Yes | ✅ Yes |
| Capital Cost Allowance on home | N/A | ⚠️ Not recommended (see below) |
CCA on your home: Homeowners can theoretically claim CCA (depreciation) on the business-use portion of their home. This is almost always a mistake — claiming CCA on your principal residence partially disqualifies the Principal Residence Exemption when you sell, triggering a taxable capital gain. Consult a CPA before considering this.
Internet: Separate from Home Office
Internet is usually claimed separately as a business expense on T2125 (under telephone and utilities or other expenses), not run through the home office calculation. Claim 50–100% depending on your business vs personal internet usage. Most CPAs recommend 50% as a defensible claim for a home internet plan used for both work and personal browsing.
Where It Goes on T2125
Home office expenses are calculated in Part 7 of T2125 (Business-use-of-home expenses). The form asks you to enter each category of home expense and your business-use percentage. The calculated deductible amount flows to the “other expenses” section of your T2125.
The deduction cannot reduce your net business income below zero. Any excess is carried forward to next year and claimed then — it does not expire.
Documentation to Keep
- Floor plan or sketch of your home showing the office area and total square footage
- Annual totals for each eligible home expense (rent receipts, utility bills, insurance statements, property tax assessment)
- A photo of your workspace taken during the tax year
The CRA may audit home office claims and can ask for floor plans and expense documentation years after the original filing. Keep records for 6 years from the date of the return.
Frequently Asked Questions
Can I claim home office expenses if I work in multiple locations?
Yes, as long as your home is your primary place of business — you do more than 50% of your total work from home. If you split time equally between a home office and a client site, you may not qualify. The key test is where you spend the majority of your working time.
Can I claim a home office deduction if I rent and my lease doesn’t mention business use?
The CRA does not require your lease to permit business use to claim the home office deduction. However, your landlord may have a different view. Check your lease for clauses about commercial activities. Many leases prohibit commercial use — violating your lease is a separate legal issue from your tax claim.
What if my home office doubles as a guest room?
A space that serves both business and personal functions can still qualify, but you must apply an additional time-use factor to account for the personal use. Calculate the percentage of hours (or days) the room is used for business vs personal purposes and apply that factor to your space percentage.