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Last updated: October 16, 2026
In most cases, the best way to reduce PSB risk is to make sure each client relationship genuinely looks like a business relationship, not a job: you control the work, carry financial risk, and can send someone else to do it. The Income Tax Act has a two-part test plus two exceptions, and CRA and the courts look at each engagement separately. Knowing that test lets you build a defensible position before an audit starts.
Operating a business with multiple clients, owning tools, and taking financial risks prevents classification as a personal services business under CRA rules.
| Point | Details |
|---|---|
| Know the legal test | A PSB exists when a 10%+ shareholder would be the client’s employee but for the corporation, unless the corporation has more than five full-time employees or the client is an associated corporation. |
| Diversify client base | Serving multiple unrelated clients and maintaining clear invoices signals independent operation to CRA. |
| Own tools and control schedule | Using your own equipment and setting your own work hours strengthen evidence of business control. |
| Build subcontractor rights | Including subcontracting clauses and occasionally employing substitutes show genuine business flexibility. |
| Take on financial risk | Engaging in fixed-price contracts and absorbing costs illustrate a real profit and loss risk. |
| We at T-Ledgers help ensure compliance | We review your contracts and filings to help reduce PSB risks and ensure correct reporting. |
Under subsection 125(7) of the Income Tax Act, a corporation carries on a personal services business when both of these are true:
Even if both are true, it isn’t a PSB if either exception applies:
There’s no exception for professional corporations. The real battleground is the second condition, whether you’d be an employee but for the corporation, which is decided with the same factors CRA uses for employee vs. self-employed status.
In practice, most contractors can’t hire six full-time staff and don’t bill associated corporations, so the realistic defence is making each engagement genuinely not look like employment. Having several clients helps, but CRA tests each client relationship on its own, so one employee-like contract can still be a PSB.
PSB status is expensive in a specific, calculable way, not just a vague compliance headache. A PSB loses both the small business deduction and the general rate reduction, and pays an additional 5% federal tax on top. That puts PSB income above the normal general corporate rate, not just at it. In Ontario the combined rate is about 44.5%, compared with roughly 12% for active business income under the small business limit. Check current rates on CRA’s corporation tax rates page.
Because salary to the incorporated employee stays deductible, many contractors at risk of PSB pay out most of the corporation’s income as salary each year, leaving little income taxed at the PSB rate. Income that is taxed at the PSB rate can usually be paid out as eligible dividends, which softens the overall hit. This doesn’t fix the classification, but it caps the damage. Model it with a CPA, since salary also means CPP and payroll costs.
Our guide to T2 corporate tax returns walks through exactly which lines and schedules change when PSB status applies.
To decide the “employee but for the corporation” condition, the CRA looks at the total working relationship using the two-step approach set out in its Employment status: Employee or self-employed guidance, weighing the intent of the parties against how the work actually plays out day to day.
Contract wording that says “independent contractor” carries little weight if the actual conduct looks like employment, consistent hours, one client, company-supplied laptop, no ability to delegate. The CRA weighs economic reality over the label on the page.
Reducing PSB exposure means making your corporation look, operate, and get paid like a business rather than a disguised job. A few concrete moves carry the most weight.
Pro Tip: Keep a simple audit folder throughout the year: signed contracts, invoices from different clients, proof of equipment purchases, and any subcontractor agreements, so you’re never scrambling if the CRA asks.
Contract wording alone is a weak defence because the CRA reviews conduct, not phrasing, as outlined in CRA’s guidance on the working relationship. Contractors in specialized fields, including those reporting income from automated trading strategies, face similar scrutiny when a single payer or platform dominates their revenue, which makes diversified income streams and clear recordkeeping just as important there.

If a review of your contracts and client list suggests you may already be a PSB under the legal test, acting before a reassessment letter arrives gives you more options.
If we had to rank these defences by reliability, client diversification comes first, genuine subcontracting second, and documentation third, because all three are easy for the CRA to verify and hard to fake. Hiring toward the more-than-five-employee exception is rarely the first move; it only makes sense when the business genuinely needs the staff. The trade-off most contractors underestimate is that fixing PSB risk after the fact costs more in professional time than building the right structure from the start.
A corporation’s paperwork matters less than what it actually does day to day. The strongest files we review always show multiple clients, real financial risk, and consistent records, not clever wording.
— Wajahat Ajmal (CPA, FCCA)
Reviewing your contracts, client mix, and T2 filings against the PSB test takes a trained eye, and it’s exactly the kind of work our CPA-led team handles every week.

We use flat-rate pricing for our engagements to provide cost transparency. Check our Growth, Scale, and Ultimate packages to find the right level of support for your corporation.
This article is general information, not tax or legal advice. PSB status depends on the facts of each contract, so have a CPA review your engagements before relying on any of this. Book a free consult with T-Ledgers.
A personal services business is a corporation whose owner-worker would reasonably be considered an employee of the client if the corporation didn’t exist. It doesn’t apply if the corporation has more than five full-time employees throughout the year, or if the client is an associated corporation.
PSB stands for “personal services business,” a specific corporate classification under the Income Tax Act. The CRA applies the term when a corporation’s worker would otherwise look like an employee of the client rather than an independent business owner.
There’s no income-percentage rule within the PSB framework specifically; the statutory test in s.125(7), not an income threshold, determines PSB status, according to CRA’s fact sheet.
Legitimate ways to reduce your tax bill include claiming all eligible business deductions, contributing to RRSPs, and structuring your corporation to avoid PSB status so you retain access to the small business deduction. A qualified CPA can review your specific situation through services like our Corporate Tax and GST Filing.
This article is intended to inform readers in general terms. It is not intended to provide any tax or business advice. Please consult your T-Ledgers advisor if you have any questions about your unique situation. While we have tried to ensure the accuracy of the information in this article, we accept no liability for errors or omissions.
Disclaimer: The articles, calculators and other content on this website are general information only, not tax, accounting, legal or financial advice. Calculator results are estimates based on the rates and assumptions shown and may not match your situation. Tax rules change and depend on your province, business structure and the facts of your case, so speak with a CPA, and a lawyer where legal matters are involved, before acting. T-Ledgers accepts no liability for decisions made based on this information. Book a free consult with T-Ledgers.