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When Should You Incorporate Your Side Hustle?

The answer isn't 'as soon as possible.' Here's the actual math.

January 2025·6 min read
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The Incorporation Myth

Many self-employed Canadians rush to incorporate because they've heard it "saves on taxes." The reality is more nuanced. Incorporation defers tax - it doesn't always reduce it. Whether it saves money depends on one key question: do you spend everything you earn?

How Corporate Tax Works

A Canadian-Controlled Private Corporation (CCPC) pays the small business rateon the first $500,000 of active business income:

ProvinceCombined SBD Rate
Ontario12.2%
British Columbia11.0%
Alberta11.0%
Quebec12.2%
Saskatchewan11.0%
Manitoba9.0%

Compare this to personal marginal rates of 43-53% for high earners. The difference stays inside the corporation as retained earnings.

The Tax Deferral, Not Savings

Money left in the corporation is taxed at the low SBD rate. But when you eventually pay yourself - through salary or dividends - you pay personal tax on that amount. Canada's tax integration system is designed so that the total tax on corporate income paid out as dividends is roughly equal to what you'd pay as a sole proprietor.

Key insight: Incorporation mainly helps when you can leave money inside the corporation to invest and grow at the lower corporate rate.

When Incorporation DOES Save Money

  • Business earns more than you spend: If you earn $200K but only need $100K to live, the extra $100K is taxed at 12% (corporate) instead of 43%+ (personal)
  • Income splitting with family: Paying reasonable salaries to family members in the business
  • Lifetime Capital Gains Exemption: $1.25M LCGE on sale of qualifying small business shares
  • Retirement planning: Corporate investing provides more capital to deploy

When Incorporation DOESN'T Help

  • You spend everything: If all business income gets paid to you as salary/dividends, total tax is similar
  • Low business income: Under $60-80K, incorporation costs (accountant, legal, filings) eat into any tax deferral
  • No retained earnings: If the corporation distributes all profit, integration means roughly equal total tax
  • CPP implications: As a sole prop, you pay double CPP - but you also build CPP pension entitlement

The Hidden Costs

  • Incorporation fees: $300-$500 (federal) or $200+ (provincial)
  • Annual accountant fees: $2,000-$5,000 for corporate + personal T2/T1 filings
  • Annual filings: Corporate tax return, annual return, HST returns
  • Payroll administration: If paying salary, you must run payroll and remit CPP/EI
  • Dissolution costs: Winding down a corporation isn't cheap

The Practical Breakeven

As a rule of thumb, incorporation starts making sense when:

  • Net business income exceeds $80,000-$120,000
  • You can retain at least $30,000+/year inside the corporation
  • You plan to stay incorporated for 5+ years (to recoup setup costs)

Use our calculator to find your exact breakeven point based on your province and income.

Bottom Line

Incorporation is a tool for tax deferral and income splitting, not a magic tax reducer. If you earn well above your living expenses and want to invest the surplus at low corporate rates, it's powerful. If you spend everything you earn, it's an expensive paper exercise. Run the numbers before you file.

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