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Sole Proprietor vs. Incorporation: When Does It Actually Save You Money?

Real tax math comparing sole proprietorship vs. incorporating in Canada. Scenarios at $60K, $100K, and $150K income.

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Accountly Team
Sole Proprietor vs. Incorporation: When Does It Actually Save You Money?

Most freelancers should not incorporate. The ones who should are leaving thousands of dollars on the table every year by not doing it. The difference comes down to one question: how much of your income do you actually need to live on?

The Basics

As a sole proprietor, your business income flows directly onto your personal tax return via the T2125. You pay personal income tax on every dollar of net business income, plus both halves of CPP (about 11.9% on earnings between $3,500 and $73,200 in 2026).

As an incorporated business, the corporation files its own T2 tax return and pays corporate tax. You then pay yourself a salary (T4) or dividends, and only pay personal tax on what you take out. Money left in the corporation is taxed at the small business rate: roughly 9 to 12.2% depending on your province, on the first $500,000 of active business income.

That gap between ~11% corporate tax and 40%+ personal tax at higher brackets is where the savings live.

The Tax Math: Three Scenarios

Say you’re in Ontario and your net business income (after deductions) is:

$60K Income$100K Income$150K Income
Sole Prop: Personal tax + CPP~$13,500~$28,000~$48,500
Corp: You take $60K salary~$13,500~$16,500 (salary) + ~$4,800 (corp tax on $40K) = ~$21,300~$16,500 (salary) + ~$10,800 (corp tax on $90K) = ~$27,300
Savings from incorporating$0~$6,700/yr~$21,200/yr

The key insight: at $60K, you need all the money to live, so there’s nothing to leave in the corporation. No savings. At $150K, you can pay yourself $60–70K and let $80–90K sit in the corp at low tax rates.

The Real Break-Even Point

The general rule: consider incorporating when your net business income consistently exceeds $80,000–$100,000 per year and you don’t need to withdraw all of it.

“Consistently” is the key word. One good year at $120K followed by $50K the next doesn’t justify the overhead. You need predictable income above the threshold.

The Hidden Costs Nobody Mentions

Incorporation isn’t free:

  • Incorporation fees: $200–$400 (federal) or $300–$800 (provincial)
  • Annual corporate tax return (T2): $1,500–$3,000/year if you hire an accountant, and you should, because T2 filing is significantly more complex than T2125
  • Payroll administration: If you pay yourself a salary, you need to run payroll, remit source deductions, and file T4s
  • Annual provincial filing: Most provinces charge $20–$50/year for annual returns
  • Legal and professional fees: Corporate minute book maintenance, potential HST registration changes
  • Winding down: If you decide to close the corporation later, there are legal and tax costs

At the low end, you’re looking at $2,000–$5,000 per year in extra professional fees. That eats directly into your tax savings.

CPP: The Wrinkle

As a sole proprietor, you pay both the employee and employer portions of CPP on your net self-employment income, about 11.9%, up to the maximum pensionable earnings ($73,200 in 2026).

As a corporation paying yourself a salary, you still pay both halves of CPP. The corporation pays the employer portion and deducts it as a business expense, and you pay the employee portion.

If you pay yourself dividends instead of salary, you skip CPP entirely. That saves you ~$7,500/year, but it also means you’re not building CPP pension credits. Whether that’s smart depends on your retirement plan. If you have substantial RRSP/TFSA savings, skipping CPP might make sense. If CPP is your primary retirement strategy, it doesn’t.

The Lifestyle Question

Ask yourself: do I reinvest in my business, or do I withdraw everything?

If you’re a freelance developer earning $130K and you spend $125K on life, incorporation saves you almost nothing. The math only works when you can leave money inside the corporation.

Common reasons to leave money in a corp:

  • Building a war chest for slow months
  • Saving to hire employees or contractors
  • Investing through a corporate investment account
  • Deferring personal income to a lower-income year (parental leave, sabbatical, semi-retirement)

If none of those apply, stay a sole proprietor. It’s simpler, cheaper, and the tax savings are minimal.

Whether You’re a Sole Prop or Incorporated, Track Everything

Accountly handles bookkeeping for both structures. Track income, categorize expenses, and generate the reports your accountant needs, whether that’s a T2125 or a corporate T2 package. You can also use our tax savings guide to figure out how much to set aside.

FAQ

At what income level should I incorporate in Canada? The general threshold is $80,000–$100,000 in consistent net business income, and you don’t need to withdraw all of it. If you spend everything you earn, incorporation doesn’t help regardless of income level.

Can I switch from sole proprietor to corporation mid-year? Yes, but the timing matters. You’ll file a T2125 for the portion of the year as a sole prop, and the corporation files a T2 for its portion. Work with an accountant to pick the right date. January 1 is simplest.

Is it true that incorporating protects me from liability? A corporation provides limited liability, meaning your personal assets are generally protected from business debts. But this isn’t absolute. Banks often require personal guarantees on business loans, and professionals (doctors, lawyers) have specific rules.

Should I pay myself salary or dividends from my corporation? Salary creates RRSP contribution room and CPP credits, but requires payroll administration. Dividends are simpler and skip CPP, but don’t create RRSP room. Most accountants recommend a mix based on your personal situation.

How much does an accountant cost for a corporation vs. sole proprietor? A T2125 as part of your personal return typically costs $300–$800. A corporate T2 return plus personal return costs $1,500–$3,000+. The complexity increase is significant.

Can I incorporate just to save on taxes for one big year? You can, but the setup and shutdown costs ($3,000–$5,000+) usually eat the savings unless the income is very high. Incorporation makes sense for sustained higher income, not one-off windfalls.