If you run a corporation in the Greater Toronto Area and provide services to another business, you could be sitting on a serious tax risk without knowing it. The Canada Revenue Agency (CRA) has a classification called a Personal Services Business (PSB), and if your corporation qualifies, the tax consequences are severe. Many incorporated contractors across Ontario are unknowingly operating as PSBs, incorrectly claiming the Small Business Deduction, and exposing themselves to back taxes, interest, and penalties.
This post explains exactly what a personal services business tax situation looks like in Canada, how the CRA decides whether your corporation qualifies, what it costs you if it does, and most importantly, what you can do right now to protect your position. Whether you are an incorporated consultant, IT contractor, freight operator, or any other professional providing services through your own company, this is information you need before the CRA comes looking.
Why the CRA Is Watching Incorporated Contractors in the GTA

Over the past few years, a common pattern has emerged across Ontario: companies hire service providers and require them to incorporate as a condition of the contract. From the hiring company’s perspective, this arrangement is attractive: it shifts payroll obligations, reduces costs like CPP and EI contributions, and limits liability.
For the contractor, incorporating appears to offer benefits too: a lower small business tax rate, income splitting opportunities, and tax deferral. But there is a significant catch.
In 2022, the CRA launched its Personal Services Business Pilot, a targeted compliance program reviewing Canadian corporations that may be operating as PSBs. The findings were striking: of the corporations reviewed, nearly 64% were incorrectly claiming the Small Business Deduction they were not entitled to. And nearly 74% of potential PSBs identified were concentrated in just three industries: transportation and warehousing, construction, and scientific and technical services.
The pilot’s stated next step is moving from education into full compliance enforcement. For GTA-based incorporated contractors, that means the window to get your affairs in order is narrowing.
What Is a Personal Services Business (PSB)?

The “Incorporated Employee” Problem Explained
A Personal Services Business is a corporation that provides the services of a shareholder who would reasonably be considered an employee of the client if the corporation did not exist. The CRA refers to this person as an “incorporated employee.”
The concept is straightforward. If you incorporated your business primarily to provide services to one company, and if the nature of that relationship looks and feels like employment, the CRA may not recognize your corporation as a genuine independent business. Instead, it treats the income as personal services business income, which comes with a very different (and much higher) tax bill.
The PSB rules are found in subsection 125(7) of the Income Tax Act. They exist specifically to prevent individuals from accessing the tax advantages of incorporation when they are effectively operating as employees.
Does Your Corporation Meet the CRA’s PSB Conditions?
According to CRA guidance, your corporation may be carrying on a personal services business if all four of the following conditions are met:
- You are a specified shareholder, meaning you (or a related person) own 10% or more of the corporation’s shares
- You perform services for a client, and you would be considered an employee of that client if your corporation did not exist
- Your corporation has five or fewer full-time employees throughout the year
- Your corporation’s income is not from an associated corporation (i.e., a company under common ownership)
If all four apply to your situation, the CRA will likely classify your corporation as a PSB. Note that having six or more full-time employees is one of the few ways to avoid PSB status, but for most one-person or small service corporations, that threshold is not met.
What Are the Tax Consequences of a PSB Classification?

Losing the Small Business Deduction
One of the biggest reasons to incorporate in Canada is access to the Small Business Deduction (SBD). For Canadian Controlled Private Corporations (CCPCs) earning active business income of up to $500,000, the SBD reduces the Ontario corporate tax rate to approximately 12.2%.
A PSB is completely excluded from this benefit. It is also excluded from the general tax rate reduction. That preferential treatment disappears entirely the moment the CRA classifies your corporation as a PSB.
The 44.5% Ontario Tax Rate: What That Actually Means
Here is where the numbers get alarming. As outlined by tax law analysts and confirmed by BDO Canada, a corporation classified as a PSB in Ontario faces a combined corporate tax rate of approximately 44.5%, broken down as:
- 28% federal rate (after abatement, with no access to general rate reduction)
- 11.5% Ontario provincial general rate
- 5% additional PSB surtax on top of all of the above
Compare that to the 12.2% small business rate available to a regular CCPC. On $200,000 of income, that difference works out to roughly $65,000 in additional tax. And that is only the corporate layer. When you factor in the personal tax you pay on withdrawals, the total burden can approach or exceed the top personal marginal rate.
The purpose of the 5% surtax is deliberate: it is designed to eliminate any financial incentive to funnel employment-like income through a corporation.
Which Business Expenses Can a PSB Still Deduct?
Very few. The Income Tax Act severely restricts what a PSB can deduct. According to TaxTips.ca, allowable deductions for a PSB are limited to:
- Salaries and wages paid to the incorporated employee
- Benefits and allowances provided to that incorporated employee
- Expenses directly related to selling property or negotiating contracts (if they would have been deductible as employment expenses)
That means typical business deductions such as home office costs, software subscriptions, professional development, vehicle expenses, and most operating costs are not deductible for a PSB. The combination of a higher tax rate and stripped-out deductions makes a PSB classification one of the most costly outcomes in Canadian corporate tax.
How Does the CRA Decide If You Are an Employee or a Contractor?

The Five Factors the CRA Uses to Assess Your Working Relationship
When determining whether a corporation is carrying on a PSB, the CRA applies the same analysis used to distinguish an employee from a self-employed individual. According to T2inc.ca’s analysis of CRA guidance, the CRA weighs five core factors:
- Control: Does the client control how, when, and where the work is performed? High control points toward employment.
- Ownership of tools: Does the contractor use their own equipment and tools, or the client’s?
- Financial risk: Does the contractor bear real financial risk, such as the chance of losing money on a project?
- Integration: Is the contractor’s work integral to the client’s core business, or does the contractor operate independently?
- Facts over contract: Does the actual day-to-day working relationship match what the written contract says?
No single factor is decisive. The CRA looks at the full picture. A contractor who sets their own hours, uses their own equipment, works for multiple clients, and invoices on a project basis is in a much stronger position than one who works exclusively on-site for one company, follows that company’s procedures, and uses their equipment.
Why Your Contract Wording Is Not Enough on Its Own
This is one of the most common misconceptions among incorporated contractors in the GTA. Having a contract that says “independent contractor” does not protect you if the actual working relationship looks like employment.
Tax Court cases make this clear. In the 2015 case of C.J. McCarty Inc., a project management corporation successfully defended its independent contractor status because the facts supported genuine autonomy. In contrast, a 2004 case involving an Alberta corporation providing services through a placement agency went the other way: the corporation was found to be a PSB precisely because the working arrangement resembled employment regardless of how it was structured on paper.
The CRA’s position is consistent: the actual facts of the working relationship always prevail over the label in the contract.
How Can You Reduce the Risk of Being Classified as a PSB?
Practical Steps to Strengthen Your Independent Contractor Position
The good news is that there are concrete steps you can take to reduce PSB risk. None of these are guaranteed to prevent a CRA challenge, but together they demonstrate a genuine independent business operation:
- Work for more than one client. A single-client arrangement is the biggest PSB red flag. Diversifying your client base strengthens your position significantly.
- Use your own equipment and tools. Avoid relying on the client’s infrastructure, devices, or office space wherever possible.
- Set your own hours and deliverables. Structure contracts around outcomes and deliverables, not hours spent under supervision.
- Maintain your own business infrastructure. Have a business address, a separate business bank account, proper invoicing, and your own liability insurance.
- Keep detailed records. Invoices, contracts, correspondence, and financial records that clearly show an arm’s-length business relationship are valuable if the CRA ever reviews your situation.
- Review your contracts carefully. Make sure the written terms match reality, including flexible scheduling, your right to subcontract, and the absence of employer-style control and supervision.
Connecting with tax planning professionals experienced with corporate structure in the GTA before you sign a new contract, or before you incorporate, is one of the most effective things you can do.
You can also explore broader tax strategies for self-employed Canadians that complement your incorporation planning.
What to Do If You Think You Have Already Been Operating as a PSB
If you review the conditions above and realize your corporation may already qualify as a PSB, do not wait for the CRA to contact you. There are two important options to consider.
First, the CRA’s Voluntary Disclosure Program (VDP) allows you to correct previously filed tax returns, potentially avoiding or reducing penalties and interest. Proactive disclosure is almost always treated more favourably than being caught in a compliance review.
Second, if you are already in a situation where PSB status is unavoidable. For example, if a client insists on a single-client incorporated arrangement, pay out as much corporate income as salary to the incorporated employee rather than retaining earnings in the corporation. Salary is one of the few deductions a PSB is permitted, and retaining income in the corporation at a 44.5% rate without being able to access the SBD offers no meaningful tax advantage.
Clients who work with Simplified Accounting on CRA reviews and assessments consistently note the difference that organized, meticulous preparation makes. One retail client facing a CRA examination worked with Simplified Accounting for six months and walked away with a positive outcome and has since referred friends and family to the firm.
If the CRA has already contacted you about a PSB matter, professional CRA audit support can help you navigate the process and protect your position.
Is Incorporation Still Worth It for GTA Contractors?
The answer is yes, but only when the structure is set up correctly and the working relationship genuinely supports independent contractor status.
When you operate as a true independent business rather than an incorporated employee, incorporation in Ontario still offers meaningful advantages: access to the 12.2% small business rate, income deferral, dividends, and the ability to build retained earnings. The PSB rules do not eliminate those benefits. They only apply when the underlying working relationship resembles employment.
For GTA contractors and small business owners considering incorporation, the key is to get proper advice before you incorporate, not after. Clients who work with Simplified Accounting on both personal and corporate taxes regularly benefit from proactive advice on structuring their business to preserve these advantages from day one.
You can also explore self-employed tax services in the GTA if you are currently operating as a sole proprietor and weighing whether incorporation makes sense for your situation.
The right corporate tax planning approach for GTA businesses ensures that if you do incorporate, the structure works in your favour and stays that way.
Conclusion
The CRA’s personal services business tax rules are one of the most consequential and least understood risks for incorporated contractors across the Greater Toronto Area. A PSB classification wipes out the Small Business Deduction, subjects your income to a combined Ontario rate of up to 44.5%, and strips away most of the business expense deductions you may be counting on.
The key takeaways are simple: understand the four conditions that trigger PSB status, make sure your actual working relationship supports independent contractor classification, and keep thorough documentation that backs it up. If you are already concerned about your situation, the time to act is now, before the CRA moves from education into full enforcement. At Simplified Accounting, we help incorporated contractors and small business owners across the GTA structure their businesses correctly and stay on the right side of the CRA. Book a free consultation today and let us review your corporate structure before it becomes a problem.