If CRA classifies your corporation as a Personal Services Business, you lose the small business deduction and face a combined tax rate of 28%+ instead of 11%. Here is what PSB status means and how to avoid it.
CRA can classify your corporation as a PSB when the relationship between your company and its main client looks more like employment than independent contracting. The tax consequences are severe and apply retroactively.
PSB status applies when an incorporated worker provides services that would otherwise be an employer-employee relationship. The corporation is essentially a vehicle to bill for what CRA views as employment income.
If your corporation employs more than 5 full-time employees throughout the year, CRA cannot classify it as a PSB. This is the only absolute statutory safe harbour — hiring staff removes PSB risk entirely.
The PSB rules apply when a specified shareholder — a person owning 10% or more of any class of shares, including related parties — is the individual providing services to the payer corporation.
PSBs cannot claim the small business deduction. The 9% federal small business rate does not apply. All active income is taxed at the higher general corporate rate, significantly increasing your annual tax bill.
PSBs pay the general corporate rate — approximately 36% combined federal-Alberta — instead of the ~11% small business rate. On $200,000 of income, this difference represents roughly $50,000 in additional tax per year.
CRA aggressively audits contractors who incorporate to reduce taxes without true business substance. Misclassification carries penalties, interest, and multi-year reassessments — not just a one-year correction.
CRA applies a multi-factor test to determine whether your corporation is truly operating as a business or functioning as a vehicle for what is effectively an employment relationship.
CRA asks a single foundational question: if the corporation did not exist, would the worker be considered an employee of the payer? To answer that question, CRA examines multiple factors:
This analysis is similar to the employee vs. independent contractor test used in payroll and employment law. A contractor who works on-site, uses the client's equipment, takes direction from the client's managers, and earns 90% of income from one client is at high risk of PSB classification.
A corporation with more than 5 full-time employees employed throughout the year cannot be classified as a PSB. This is the most reliable and definitive way to remove PSB risk — hire staff.
Important conditions apply: the employees must be full-time (not part-time or contract workers), and they must be employed throughout the year — not just hired in December to meet the threshold. CRA scrutinizes year-end hiring arrangements. Building a genuine team of full-time employees is the intended purpose of the exemption.
Even if you operate through multiple corporations, CRA can associate them for purposes of the 5-employee test. If associated corporations collectively employ fewer than 5 full-time employees, the PSB rules can still apply across the group. Structures designed to split income across multiple related entities do not defeat the PSB rules if the underlying facts still resemble employment.
A specified shareholder is defined as a person — or their related parties — who owns 10% or more of any class of shares of the corporation. PSB rules only apply when a specified shareholder is the individual providing the services to the payer. Owner-managers of small incorporated consulting businesses are virtually always specified shareholders. The 10% threshold is low enough to capture essentially all owner-operated professional corporations.
CRA has been increasingly auditing incorporated contractors in IT, oil & gas, engineering, and professional services. If your corporation derives most of its revenue from a single payer, works on-site using the payer's equipment, or has been incorporated primarily to reduce personal taxes — expect scrutiny. PSB reassessments are frequently issued for 3 prior tax years simultaneously.
The financial consequences of PSB classification are severe. The loss of the small business deduction combined with limited expense deductibility creates a dramatically higher effective tax burden.
On $200,000 of income, PSB status costs approximately $50,000+ in additional tax compared to a qualifying small business corporation. Over five years, that is a quarter-million dollars in avoidable tax. Planning matters — and acting before CRA contacts you matters even more.
PSB status is not inevitable. There are concrete, documented steps you can take to demonstrate that your corporation operates as a genuine business — not as an incorporated employee vehicle.
Adding full-time employees is the most reliable safe harbour under the Income Tax Act. More than 5 full-time employees throughout the year eliminates PSB classification entirely. Even hiring 1–2 genuine support staff — administrative, technical, or operational — strengthens your business substance argument and demonstrates that your corporation is not simply a vehicle for one person's services.
Providing services to multiple unrelated clients is one of the strongest indicators of genuine independent contracting. When no single payer accounts for 80%+ of your revenue, CRA's integration argument weakens considerably. Actively building a client base — even if one client remains dominant — demonstrates entrepreneurial intent and reduces the employment relationship characterization.
Own your own tools and equipment. Set your own hours and determine how work is accomplished. Take real financial risk — work on fixed-price contracts where cost overruns come out of your pocket. Carry your own professional liability and errors and omissions insurance. Subcontract work to third parties. Each of these factors moves the analysis away from employment and toward genuine business operation.
Paper trails matter enormously in a CRA audit. Maintain written service agreements that specify the project scope, your right to subcontract, and the absence of exclusivity. Issue proper invoices on your letterhead. Keep records of all business expenses. If possible, avoid working exclusively on the payer's premises or using the payer's equipment. Documentation that you control how the work is performed — not just what is delivered — is critical.
If CRA has contacted you about PSB status, if you are about to file a T2 for a year with concentrated single-client revenue, or if you are unsure whether your corporation's structure is defensible — speak to a tax professional before filing. PSB reassessments are far harder to reverse after the fact than they are to avoid through proactive planning. Swift Accounting reviews the specific facts of your corporation before advising on PSB risk.
A Personal Services Business (PSB) is a corporation that provides services where, if the corporation did not exist, the individual performing the services would reasonably be considered an employee of the payer. CRA classifies a corporation as a PSB when a specified shareholder (someone owning 10%+ of any class of shares) provides services that look like an employment relationship. PSBs are denied the small business deduction and most ordinary business expense deductions — resulting in a much higher effective corporate tax rate.
A Personal Services Business pays the general corporate tax rate. In Alberta, the combined federal-provincial rate for a PSB is approximately 36% (28% federal general rate plus 8% Alberta general corporate rate). A qualifying small business corporation pays approximately 11% combined. The gap of roughly 25 percentage points means a PSB earning $200,000 pays approximately $50,000 more in corporate tax per year than it would as a qualifying small business.
CRA applies an "incorporated employee" analysis: would the worker be an employee of the payer if the corporation did not exist? CRA looks at control over the work, ownership of tools and equipment, financial risk taken by the corporation, integration into the payer's business, and exclusivity of the relationship. A corporation that has a single major client, works on-site using the client's facilities, takes direction from the client's managers, and cannot subcontract work is at high risk. CRA also checks the 5-full-time-employee safe harbour.
Yes — the Income Tax Act provides an absolute safe harbour: if your corporation employs more than 5 full-time employees throughout the year, it cannot be classified as a Personal Services Business. The employees must be genuinely full-time and employed throughout the year, not just hired at year-end to meet the threshold. Even hiring 1–2 genuine employees does not meet the statutory threshold but does strengthen your overall business substance position.
A PSB is restricted to deducting only expenses that would be deductible by an employee — primarily salary paid to the incorporated employee and employment-related expenses within those limits. Typical business deductions such as home office costs beyond employee limits, advertising, meals and entertainment, and most equipment are not deductible for a PSB. This restriction compounds the higher tax rate, further increasing the overall tax burden compared to a qualifying small business corporation.
Do not respond to CRA without first consulting a tax professional. A CRA PSB audit can result in reassessments covering multiple prior years, generating substantial tax debt plus interest and potential gross negligence penalties. Gather all contracts, invoices, payroll records, and documentation showing your business independence. Then engage a qualified accountant to review your position, respond to CRA on your behalf, and determine whether any T2 amendments are warranted. Swift Accounting has direct experience with CRA PSB inquiries — contact us before responding to any correspondence.
Swift Accounting helps incorporated contractors and consultants in Calgary assess their PSB risk, structure their corporations defensibly, and respond to CRA inquiries. Don't wait until after you've filed — get an expert review before your next T2.