Startup Cost Deductions Canada 2026

Starting a business in Canada involves real costs before you earn your first dollar. Incorporation fees, website development, initial equipment, market research, professional consultations, and early advertising all happen before revenue arrives. The good news: many of these startup costs are deductible — but the rules about when and how you can claim them depend on whether expenses are current (fully deductible) or capital (depreciated via CCA).

Current vs Capital Expenditures — The Fundamental Split

The CRA distinguishes between two types of business expenditures:

• Current expenditures: Day-to-day costs that provide benefit only in the current year — rent, supplies, advertising, professional fees. Fully deductible in the year incurred.
• Capital expenditures: Costs that provide lasting benefit beyond the current year — equipment, vehicles, computers, leasehold improvements. Deducted over time via Capital Cost Allowance (CCA).

For startup costs, most soft costs (professional fees, market research, advertising) are current expenditures. Equipment and long-lived assets are capital expenditures.

Pre-Business Expenses — The CRA's Approach

Expenses incurred before your business officially opens can generally be deducted in your first year of business, provided they were incurred for the purpose of earning business income. The CRA takes the position that a business "begins" when you start seriously preparing to earn income from it — not necessarily when the first dollar arrives.

Commonly Deductible Startup Costs

The First-Year Half-Year Rule (Half-Rate Rule)

For most CCA classes, the CRA applies a half-year rule (also called the half-rate rule) in the year you acquire a depreciable asset. In year one, you can only claim 50% of the normal annual CCA rate. This applies regardless of when during the year you purchased the asset.

Example: You buy a $3,000 computer (Class 50, 55% rate) in January for your new business. Normal first-year CCA = $3,000 × 55% = $1,650. Half-year rule: $1,650 × 50% = $825 in year one. In year two, you claim 55% × ($3,000 − $825) = $1,196. And so on until the class is fully depreciated.

Pre-Incorporation Expenses for Corporations

If you incorporated a new company and incurred expenses before the corporation was formed (e.g., you personally paid legal fees to set up the corporation), those expenses can generally be transferred to and claimed by the corporation after incorporation. The mechanism: the corporation reimburses you, and claims the deduction. Keep all receipts and invoices — even those paid from your personal account — and ensure the corporation reimburses you with proper documentation before year-end.

GST/HST Input Tax Credits on Startup Costs

If you register for GST/HST (voluntarily or after crossing the $30K threshold), you can claim ITCs on GST/HST paid on eligible startup costs — even if those costs were incurred before your GST/HST registration, provided they were acquired for use in your commercial activities. This can result in a GST/HST refund in your first year of registration — especially valuable if you invested significantly in equipment or technology before opening.

Research and Development (SR&ED) Credits

If your startup involves technological innovation or product development, investigate the Scientific Research and Experimental Development (SR&ED) tax credit program. SR&ED provides a 35% refundable federal tax credit for CCPCs on eligible R&D expenditures up to $3 million annually. This is one of the most generous R&D incentive programs in the world and can be transformative for tech startups. The program is complex — an SR&ED consultant can help assess eligibility at no upfront cost (many work on contingency).

Losses in Startup Years

Many businesses lose money in their first year. As a sole proprietor, a net business loss can be deducted against other sources of personal income (employment income, investment income) in the same year, or carried back 3 years or forward 20 years. As a corporation, losses are carried within the corporation — they cannot offset the shareholder's personal income but can be applied against future corporate profits.