Who this is for
- Canadian residents choosing between a sole proprietorship and a Canadian corporation
- Existing sole proprietors considering incorporation
Not covered here
- Detailed corporate and personal tax calculations
- Transferring an existing business into a corporation
- Professional corporation licensing rules
- US entity choice
What changes when I incorporate?
Incorporation creates a legal person that owns the business separately from you. A sole proprietor reports business profit or loss on a personal return; a corporation files its own tax return, and money paid to its owner is handled separately (CRA: corporation; CRA: self-employment income).
| Question | Sole proprietorship | Corporation |
|---|---|---|
| Who owns contracts and assets? | You | The corporation owns what it signs, buys, or receives through a transfer; your existing assets and contracts do not move automatically |
| Who reports business profit? | You, on your personal return | The corporation, on a T2 return |
| Can you take business cash for personal use? | A withdrawal does not create a separate salary or dividend | Payments to you need their own treatment and records |
| Who uses a business loss? | You, subject to the loss rules | The corporation, subject to the loss rules |
The corporation needs its own records and corporate filings; a separate bank account helps keep its money distinct from yours. Salary and dividends can change CPP or QPP contributions and new RRSP room; see the owner-pay guide. The returns guide covers the filings. If you already own contracts, equipment, inventory, or goodwill, see moving a business into a corporation.
Does incorporating lower my tax, or only defer it?
For an eligible Canadian-controlled private corporation, the main income-tax advantage is often a deferral on active business profit left in the company. The federal net tax rate is generally 9% on income eligible for the small business deduction, up to the applicable business limit, plus provincial or territorial tax. The limit can be reduced by passive investment income or taxable capital and shared with associated corporations (CRA: rates; CRA: business limit).
If non-residents or public corporations control the company, it generally is not Canadian-controlled and cannot claim that deduction. Check ownership before using the small-business rate (CRA: corporation types).
The maximum federal business limit for a corporation with no associated corporation is $500,000 for a full tax year; a tax year shorter than 51 weeks reduces it. It is a ceiling on eligible corporate business income, not an income target for deciding when to incorporate. Provincial and territorial rates and limits differ. The corporate tax guide explains eligibility and rates (CRA: T2 guide).
When the corporation pays its after-tax profit as a dividend, the owner also pays personal tax. Canada's dividend rules aim to make the combined tax broadly similar to earning the profit directly, although actual results vary by province, income level, and payment method (CRA: dividend integration). A lower corporate rate alone is therefore not a permanent personal tax saving. If you need nearly all the profit to live on, little stays inside to benefit from the deferral. Rent and investment income may not qualify for the active-business rate; see holding and investment corporations (CRA: T2 guide).
At what income is it worth incorporating?
No Canadian tax rule sets an incorporation income cutoff. Compare net profit after business expenses with the cash you need personally, then weigh the amount left in the business against setup and ongoing costs. Gross sales alone cannot answer the question.
| Your situation | What it suggests |
|---|---|
| Most profit pays your living costs | Limited room for a tax deferral; added costs may dominate |
| Profit stays in the business for equipment, staff, or reserves | A deferral may help fund those needs, if the income qualifies for the small business deduction |
| Losses are likely while you start | A sole proprietorship may let a genuine business loss reduce your other income; a corporate loss stays with the corporation |
| One client buys most of your work | Review the personal services business rules before assuming the small business rate applies |
Start with two years of actual net profit and a realistic forecast, not one strong month. List annual personal spending, other household income, planned reinvestment, expected losses, and the province where the business will operate. Also list clients and any existing business assets. These facts make a comparison possible; a headline revenue figure does not.
What does it cost to incorporate and keep a corporation each year?
Government filing fees are only part of the cost. A corporation also needs separate books, tax preparation, and continuing registry filings even when business is quiet (CRA: corporation).
| Federal business corporation filing | Current online government fee |
|---|---|
| Incorporation | $200 |
| Annual corporate return | $12 |
These are Corporations Canada's online fees, not a total setup or annual cost. A provincial or territorial corporation has its own registry fees. A federal corporation may also need provincial or territorial registration, with requirements and charges that vary by place (Corporations Canada: provincial registration).
A resident corporation generally files a T2 each tax year even with no tax payable, and the federal annual return is a separate registry filing (CRA: T2 filing; Corporations Canada: fees). Accounting and legal costs depend on the records, share structure, payroll, tax accounts, and province; there is no reliable national flat price.
What happens to business losses in a corporation?
A corporation's business loss belongs to the corporation, not its shareholder. You cannot put the corporate loss on your personal return to offset your salary or other income (CRA: corporation).
A genuine sole-proprietor business loss can reduce other income in the year; any remaining non-capital loss may be carried to other years under the loss rules (CRA: self-employed losses). A corporation may carry its own non-capital loss back three years or forward twenty years, subject to restrictions such as a change of control (Income Tax Act, section 111). That future relief may be less useful if the corporation never becomes profitable. Losses from before incorporation also do not become the new corporation's losses simply because the business continues there.
Should I incorporate federally or provincially?
Choose the law and registry that fit where the company will operate; federal incorporation is not a separate federal tax plan. Provincial corporate tax generally follows where the company has a permanent establishment, and income may be allocated across provinces (CRA: permanent establishment). Both federal and provincial or territorial incorporation create a corporation, while registration duties depend on each place where it does business (Canada.ca: choosing a jurisdiction; Corporations Canada: provincial registration).
| Choice | Practical difference |
|---|---|
| Federal | Stronger protection of an approved corporate name across Canada and the ability to locate the head office in any province or territory; registration may still be needed where business is carried on |
| Provincial or territorial | Incorporated under one jurisdiction's law; check registration rules before operating elsewhere |
Federal incorporation can be useful if your business will operate in several provinces or needs the federal name review. For a business operating in one province, compare that province's incorporation and continuing fees with the federal fee plus any local registration. The right choice depends on location and name needs, not a single national fee (Canada.ca: choosing a jurisdiction).
A federal corporation with fewer than four directors must have at least one resident Canadian director, as federal law defines that term. Check provincial rules separately.
Does a corporation protect my personal assets?
A shareholder is generally not responsible for the corporation's debts merely by owning shares. The protection has limits: a personal guarantee makes you liable for the guaranteed debt, and a director may be assessed for certain unremitted source deductions or GST/HST if the legal conditions are met (CRA: corporation; CRA: directors' liability).
Incorporation also does not automatically shield someone from liability for their own negligent acts. The nature of the work, insurance, contracts, and provincial law matter. Review personal guarantees and professional or operating risks separately from the tax calculation. Licensed professionals should check the rules in professional corporations.
Does Quebec's small business deduction change the answer?
Yes. A Quebec corporation can qualify for the federal small business deduction yet receive less, or none, of Quebec's deduction because Quebec also measures remunerated employee hours and the share of primary or manufacturing activity (Revenu Québec: rate change).
For tax years beginning before April 30, 2026, Revenu Québec states a minimum rate of 3.2% on income eligible for its small business deduction. For tax years beginning after April 29, 2026, it states 2.2%, subject to the deduction's conditions (Revenu Québec: rate change).
For a Quebec service corporation, the hours-based deduction rate is full at 5,500 remunerated employee hours in the current or qualifying prior year. If neither year meets that level, current-year hours above 5,000 reduce the deduction rate, while hours at or below it generally leave no hours-based deduction. Associated corporations, shorter tax years, and primary or manufacturing activities can change the result (Revenu Québec: corporation guide). A solo owner should check eligible hours before using the lower Quebec rate.
Example
Illustrative Canadian dollars; this is a decision example, not a tax calculation.
A consultant's sole proprietorship expects C$120,000 of annual net profit after business expenses. The consultant budgets C$80,000 of that pre-tax profit for owner pay and C$40,000 for future staff and equipment. Those allocations are before corporate and personal tax; the cash available depends on how the owner is paid and taxed.
The consultant compares the after-tax cash available under each structure, the corporation's setup and annual costs, and whether the work qualifies for the small business deduction. If the consultant instead needs nearly all C$120,000 personally, the possible deferral shrinks. If the consultant expects an early loss or mainly serves one client, the loss and personal services business rules may change the choice. In Quebec, paid hours may change the provincial rate even if the federal deduction is available.
Different for you?
- You already run a sole proprietorship with assets or contracts: plan the transfer before moving them. See moving a business into a corporation.
- You mainly work for one client: check whether the company could be a personal services business.
- You need to decide how to take money out: compare salary and dividends.
- You need actual corporate rates or filing rules: see how corporations are taxed and which returns a business files.
- You are licensed to practise a profession: check professional corporation rules.
- You plan to sell the business: the sale of shares and the sale of assets can differ; see selling your business.
- You serve US clients or want a US entity: compare US business structures for a Canadian resident.
- You are a US citizen or US tax resident: owning a Canadian corporation may add US reporting and change the tax comparison; see American owners of Canadian corporations.
- Your result depends on Quebec's hours rule, a one-client contract, or an existing business transfer: gather two years of net profit, annual personal spending, client contracts, assets and debts, and paid-hour records, then get business formation help.
Figures on this page
| Figure | Value | Source |
|---|---|---|
| Canadian federal net corporate tax rate with the small business deduction For CCPCs claiming the small business deduction on active business income up to the business limit; not indexed | 9% | CRA: Corporation tax rates Checked |
| Federal small business deduction business limit Maximum for a CCPC not associated with another corporation; shared among associated corporations and reduced for taxable capital over $10 million or passive income over $50,000; prorated for tax years under 51 weeks; not indexed | $500,000 | CRA: T2 Corporation Income Tax Guide 2025, Chapter 4 Checked |
| Federal business corporation online incorporation fee Corporations Canada online filing fee for a business corporation; excludes express service and other costs | $200 | Corporations Canada: Services, fees and processing times Checked |
| Federal business corporation annual return online fee Corporations Canada online annual return filing fee; separate from the T2 tax return | $12 | Corporations Canada: Services, fees and processing times Checked |
| Quebec minimum corporate rate on SBD-eligible income for a tax year beginning before April 30 Rate for a tax year beginning before April 30, 2026, if all Quebec small business deduction conditions are met | 3.2% Tax year 2026 | Revenu Québec: Increase in the Small Business Deduction Rate Checked |
| Quebec minimum corporate rate on SBD-eligible income for a tax year beginning after April 29 Rate for a tax year beginning after April 29, 2026, if all Quebec small business deduction conditions are met | 2.2% Tax year 2026 | Revenu Québec: Increase in the Small Business Deduction Rate Checked |
| Quebec remunerated hours for full small business deduction rate Current-year or qualifying prior-year remunerated hours; subject to associated-corporation, short-year, and sector rules | 5,500 | Revenu Québec: Corporation income tax guide Checked |
| Quebec remunerated hours at or below which the hours-based deduction rate is zero Hours-based test for a full tax year; primary or manufacturing activity and associated-corporation rules can change eligibility | 5,000 | Revenu Québec: Corporation income tax guide Checked |
Primary sources
- CRA: Corporation
- CRA: Corporation tax rates
- CRA: T2 guide, small business deduction
- CRA: Type of corporation
- CRA: Permanent establishment
- CRA: Taxable dividends from Canadian corporations
- CRA: Self-employed business losses
- Justice Laws: Income Tax Act, section 111
- Corporations Canada: Services, fees and processing times
- Corporations Canada: Federal or provincial incorporation
- Corporations Canada: Provincial registration
- CRA: Directors' liability
- Revenu Québec: Increase in the small business deduction rate
- Revenu Québec: Corporation income tax guide
- Justice Laws: Canada Business Corporations Act, director qualifications
About this guide
Edited and reviewed by Di Lu, CPA on . It explains general rules for the tax year shown. It is not advice for your situation.
Changes
- : First published.