Table of Contents
Who can claim home office expenses in Canada?
Which home office expenses should you track?
How to calculate the business portion of your home expenses
How to track home office expenses step by step
How do you report home office expenses on Form T2125?
How QuickBooks Online can help you track home office expenses
Working from home can come with real costs, including utilities, insurance, and even your rent or mortgage itself. Many self-employed people in Canada, such as freelancers and consultants, can deduct a portion of these costs as business expenses—but to file with confidence, you’ll need to know what counts, how to calculate your share, and how to keep records that hold up at tax time.
According to the CRA guidance on running a business from your home, you can deduct home office expenses if you meet one of two conditions:
Meeting either condition is sufficient on its own, and many full-time freelancers meet the first condition simply by working from home regularly. If your main business activity happens elsewhere, or you only work from home occasionally, you might not qualify.
Home office expenses generally fall into two groups: shared household costs you claim a percentage of, and costs tied directly to running your business from home. Knowing the difference determines which calculation applies and what documentation you’ll need to claim tax deductions for home office expenses.
These are costs that apply to your entire home, where only the business-use portion is deductible — calculated using the percentage from your workspace measurement. What you can claim differs depending on whether you rent or own:
Internet and phone costs work differently from the rest of your home office expenses. Instead of using your workspace’s square footage percentage, you calculate the share of your actual usage that’s work-related. For example, if half your internet use is for business, you may be able to claim up to 50% of the bill.
You cannot claim:
Once you’ve confirmed your eligibility, the next step is figuring out what percentage of your home-related costs you can actually deduct. This comes down to measuring your workspace and adjusting for how it’s used in practice.
The CRA provides official guidance on how to calculate the area of your work space as a percentage of your home’s total square footage. For an L-shaped or irregular room, you’ll break it into rectangles and add the totals together.
If your office is part of an open-concept space, like a corner of a shared living area, use a reasonable portion of that open space rather than the entire floor area. Then divide your work space’s size by your home’s total size to get your base business-use percentage.
From here, you may need to make adjustments that depend on the specific type of work space. A designated room, used only for business, usually gets its full calculated percentage regardless of how many hours you work there. A common or shared area, such as a kitchen table or a home office that doubles as a guest room, may need a further adjustment based on actual use.
If you’re claiming home office expenses as a freelancer in Canada, recording them consistently throughout the year helps avoid stress at tax time. These steps are the basic scaffolding of a home office expense tracking system for most self-employed Canadians.
Pick one spreadsheet or one piece of accounting software that you’ll use to track all of your home office costs. If you’re using freelancer accounting software, connect your bank and credit card accounts so transactions import automatically. Avoid splitting records across notes apps, email folders, and paper receipts. If you already track other business expenses in a system, add home office categories there instead of starting a separate one.
Set up a category for each expense type covered above: rent or mortgage interest, electricity, heating, home insurance, maintenance, and property taxes if you own. Give internet and phone their own categories too, since they use a different calculation. Matching your categories to how the CRA groups expenses saves re-sorting later, whether you complete Form T2125 yourself or hand your records to an accountant.
The CRA expects business owners to keep supporting documentation for expenses they claim on their taxes. As each bill arrives, log the amount, date, and category, and file the receipt, invoice, or statement as soon as possible. Photographing paper receipts or saving PDF bills to a dedicated folder works for many solopreneurs, but receipt-capture software allows you to do it instantly while you’re out and about.
Write down your workspace’s square footage, your home’s total square footage, and the resulting percentage, along with the date you measured. If you adjusted for part-time or shared use, note how — for example, “office used for business 5 of 7 days.” Keep this with your other records as the basis for your claimed percentage.
Set a recurring time each month to confirm every home-related bill is logged and correctly categorized. Compare your records against bank or credit card statements to catch anything missed. This also helps surface changes worth noting, such as service rate increases.
Freelancers often need these totals more than once a year, since the CRA can require quarterly instalment payments based on your estimated income. Total each expense category, apply your business-use percentage, and update your running deduction when you’re calculating quarterly tax instalments.
Business-use-of-home expenses are calculated in a dedicated section of Form T2125 (Part 7), separate from your other business expenses, and applied after your net income before adjustments is calculated. For the full walkthrough, see our guide to Form T2125.
With QuickBooks Lite, you can categorize home office expenses as they occur, attach receipts to each transaction, and generate reports that total your costs by category at year-end. This keeps your business-use calculation backed by organized records, so you can focus on your clients, your finances, and your business goals.
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