Home Office Deduction: What Freelancers Can and Cannot Claim

Working from home is one of the biggest perks of being self-employed — and the home office deduction is one of the most valuable tax breaks available. But it also comes with strict rules. Here's what you can claim, what you cannot, and how to calculate it properly.

Disclaimer: Tax rules vary by country and change over time. Verify current rules with the CRA or IRS and consult a tax professional.

The Golden Rule: Regular and Exclusive Use

Both the CRA and IRS require that the workspace be used regularly and exclusively for your business. A kitchen table where you also eat dinner generally does not qualify. A dedicated room used only for work — even a clearly defined portion of a room — is a much stronger claim.

Canada (CRA) — Workspace-in-the-Home

Claimed on T2125, Part 7. To qualify, the workspace must be either:

• Your principal place of business (you work from home most of the time), or
• Used exclusively and regularly to meet clients, customers, or patients

What you can deduct (renters)

• Rent (proportional share)
• Electricity, heat, and water
• Internet (business-use portion)
• Condo or strata fees (proportional share)

What you can deduct (homeowners)

• Utilities (heat, electricity, water)
• Internet (business-use portion)
• Condo or strata fees
• Minor repairs and maintenance related to the workspace

Note for homeowners: Mortgage interest and capital cost allowance on your home are technically deductible but are rarely claimed — they can trigger capital gains consequences when you sell. Seek professional advice before claiming these.

How to calculate the deduction

Office square footage ÷ Total home square footage = Business-use percentage

Example: 150 sq ft office ÷ 1,200 sq ft total = 12.5%
If your monthly rent is $2,000 and utilities are $200/month:
($2,000 + $200) × 12 months × 12.5% = $3,300 deductible per year

Loss restriction

The CRA does not allow you to create or increase a business loss using the workspace-in-home deduction. If your business income is $4,000 and your other expenses are $3,800, you can only claim up to $200 in workspace expenses. The remaining amount carries forward to the next tax year.

United States (IRS) — Form 8829

The IRS allows two methods for the home office deduction:

Simplified Method

• $5 per square foot of your home office
• Maximum of 300 square feet = maximum deduction of $1,500
• No depreciation; no Form 8829 required
• Deduction cannot exceed your gross income from the business

Regular Method (Form 8829)

• Office sq ft ÷ total home sq ft = business-use percentage
• Apply that percentage to mortgage interest (or rent), utilities, insurance, and depreciation
• More paperwork but often a larger deduction
• Requires depreciation recapture when you sell the home

Exclusive use requirement

The IRS strictly enforces “exclusive use.” If the room is used for both work and personal activities, neither method applies. A child occasionally doing homework in your office does not automatically disqualify you — but regular personal use does.

What You Cannot Claim

• Space used for personal purposes (even occasionally)
• A home office used only for “convenience” when you have a fixed office elsewhere (US)
• Mortgage principal payments (not deductible as a business expense in either country)
• General home improvements not related to the workspace

Best Practice

Take a photo of your workspace and measure the square footage once a year. Keep utility bills organized. TaxSort can store these receipts and documents so they are ready at tax time.