Canada Home Office Tax Deduction Calculator 2026

Calculate your work-space-in-the-home deduction — for employees and self-employed.

Detailed Method Only · 2023+ Tax Years
⚠️ Important: The Temporary Flat Rate Method ($2/day) ended after 2022. For 2023 and later tax years, only the Detailed Method applies. Employees must have a signed Form T2200 from their employer.
💡 Quick Examples — From CRA Guidance
Example 1 — Sam's dining room table (common area):
Dining room = 12% of the home. Sam works 40 hours/week.
→ Employment use = 12% × (40 ÷ 168) = 2.8%
→ Rent + utilities = $1,200 → $1,200 × 2.8% = $33.60
Example 2 — Charlie's spare room (designated):
Spare room = 20 m² out of 200 m² = 10%
→ Designated room = 100% use (hours don't matter)
→ Utilities = $1,200 → $1,200 × 10% × 100% = $120.00
👤 Taxpayer Type

Without Form T2200, employees cannot claim home office expenses.

Self-employed individuals must meet one of these two conditions to claim.

📐 Work Space Details
📅 Period of Use
👥 Multiple Workers Sharing
💰 Home Expenses Paid (for the period worked from home)

Enter the TOTAL annual amount you paid. The calculator will prorate by your deductible percentage.

💵 Reimbursement & Income
HOME OFFICE DEDUCTION CALCULATED
Work Space Size 12.00 m²
Home Size 100.00 m²
Work Space % of Home 12.00%
Employment Use % (40 hrs/week ÷ 168) 23.81%
Total Deductible % 2.86%
Total Home Expenses $2,940.00
Gross Deduction (before reimbursement) $84.00
Less: Employer Reimbursement −$0.00
Home Office Deduction $84.00
Estimated Tax Savings $24.36
⚠️ Form T2200 Required: You must have a signed Form T2200 (Declaration of Conditions of Employment) from your employer to claim home office expenses as an employee.
⚠️ Business-Income Limitation: Your home office deduction exceeds your net business income. The deduction is capped at your net business income — the excess carries forward to future years.
📋 Reporting: Report on Line 22900 of your T1 return. Complete Form T777.
📊 Expense Breakdown
ExpenseAmountEligible?Notes
Total$0.00
🧮 Calculation Walkthrough — See your numbers plugged in
Step 1 — Work Space %:
Step 2 — Employment Use %:
Step 3 — Total Deductible %:
Step 4 — Partial Year Factor (if applicable):
Step 5 — Gross Deduction:
Step 6 — After Reimbursement / Business Limit:

Share this tool with friends

⚠️ Disclaimer: This calculator provides an estimate for informational purposes only. Actual deductions are determined by the CRA based on your tax return and individual circumstances. This tool follows CRA guidance on Line 22900, Form T2125, and the Detailed Method. Always verify with the CRA or a qualified tax professional.
❓ Frequently Asked Questions
Who can claim home office expenses?

Employees: You must have worked from home under a formal or informal work-from-home agreement AND have a signed Form T2200 from your employer. Self-employed: Your home workspace must be your principal place of business OR used exclusively to earn business income.

What is Form T2200?

Form T2200 (Declaration of Conditions of Employment) is signed by your employer confirming that you were required to work from home and pay your own expenses. Without it, you cannot claim home office expenses as an employee.

What is the difference between common and designated spaces?

Common (shared) area: The space has other purposes besides work (kitchen table, family computer room). Your deduction uses an hours factor: hours worked ÷ 168. Designated room: Used only for work (spare room). Hours don't matter — you get 100% of the work space percentage.

Can I claim mortgage interest as an employee?

No. Employees cannot claim mortgage interest, property taxes, home insurance, or capital cost allowance. Only self-employed individuals can claim these expenses.

Why did the Temporary Flat Rate Method end?

The $2/day Temporary Flat Rate Method was introduced as a temporary COVID-19 measure for 2020, 2021, and 2022. It ended after 2022. For 2023 and later tax years, only the Detailed Method applies.

What happens if I deduct CCA and sell my home?

Deducting Capital Cost Allowance on the business-use portion of your home can trigger capital gains tax and recapture when you sell your home. Consider carefully before claiming CCA as a self-employed individual.

Can I create a business loss with home office expenses?

No. For self-employed individuals, the home office deduction cannot create or increase a business loss. It is limited to net business income before the deduction. Unused amounts carry forward to future years.

What if two people share the same home office?

Each person calculates their own employment or business use of the space based on their share. If you split 50/50, each claims 50% of the work space percentage. Hours factor applies separately for each person's employment use in common areas.

Official CRA information: Home Office Expenses for Employees · Business-Use-of-Home · Guide T4002

⚠️This tool is for information purpose only. We do not guarantee any claim.
It is made based on data publicaly available on official website of concerned department.

Last Updated: March 2026 | Official Determination Required