Is the $2 per day flat rate still available for 2026?

No. The temporary flat rate method was a pandemic measure that ended with the 2022 tax year. For 2023, 2024, 2025, and 2026, you must use the Detailed Method.

Can I deduct mortgage interest for my home office?

Only if you are self-employed. Salaried employees cannot deduct mortgage interest or property taxes, even if they work from home full-time.

How do I calculate my business-use percentage?

You take the area of your workspace divided by the total finished area of your home. If the space is shared (like a kitchen table), you must also multiply by the percentage of time it is used for work.

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The Death of the Flat Rate: Home Office Deductions in 2026

For three years, the CRA made home office claims easy with a $2 per day flat rate. Those days are over. For the 2025 and 2026 tax years, you must use the Detailed Method to claim your workspace expenses.

Quick Rule

To qualify, your home office must be your **principal place of business** (more than 50% of the time) OR used **exclusively** for work and for meeting clients regularly.

The Calculation (Area x Time)

Under the detailed method, you cannot just pick a number. You must calculate the business-use percentage of your home based on size and usage.

The Formula:

(Workspace Area / Total Finished Area) x (Hours worked / 24 hours)

Note: If your office is a dedicated room used ONLY for work, you do not need the time-of-use adjustment.

What can you claim?

All Claimants

• Electricity and Heat
• Water
• Home Internet access fees
• Maintenance and minor repairs
• Rent (if you don't own)

Self-Employed ONLY

• Property Taxes
• Home Insurance
• Mortgage Interest
• Capital Cost Allowance (CCA)

Stop the Spreadsheet Scramble

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Sources: CRA Guide T4044 (Employment Expenses) and Income Tax Folio S4-F2-C2 (Business-use-of-home expenses). Always verify with a tax professional.