Personal Services Business (PSB) Tax Calculator for Contractors

What a Personal Services Business Actually Is

The definition sits in subsection 125(7) of the Income Tax Act and it is shorter than its reputation suggests. A personal services business is a business of providing services where the individual performing them, called the incorporated employee, or a person related to that individual, is a specified shareholder of the corporation, and where that individual would reasonably be regarded as an officer or employee of the client but for the existence of the corporation.

Two exceptions follow. The corporation employs more than five full-time employees throughout the year. Or the services are provided to a corporation the company is associated with.

Everything else is fact. There is no election, no safe harbour based on how the contract is worded, and no amount of invoicing that settles it. The question is whether, if you stripped the corporation out of the picture, what remains would look like employment.

That is why the incorporated IT contractor, engineer or consultant on a long engagement with one client is the exact fact pattern the rule was written for. Not because there is anything improper about the arrangement, but because it is the arrangement the rule describes.

The 44.5 Per Cent PSB Tax Rate in Canada

The rate is built from three things, and it is worth seeing them separately because each one is a separate denial.

First, a personal services business does not get the small business deduction. Paragraph 125(1)(a) applies the deduction to active business income, and a personal services business is expressly carved out. So the 12.2 per cent combined Ontario small business rate is gone.

Second, it does not get the general rate reduction in section 123.4, which is what brings an ordinary corporation down to 26.5 per cent combined in Ontario. That leaves the full federal rate of 38 per cent less the provincial abatement, plus Ontario tax.

Third, section 123.5 adds a further 5 per cent federal tax on the taxable income of a personal services business. That provision exists specifically to remove the remaining advantage of incorporating.

Stacked together the combined Ontario rate reaches 44.5 per cent. Against the 12.2 per cent a contractor expected to pay, that is a gap of more than thirty-two points on every dollar of corporate income.

And it gets worse, because the 44.5 per cent is applied to a much larger number.

PSB Denied Expenses Under Paragraph 18(1)(p)

This is the part contractors consistently underestimate, and it does more damage than the rate.

Paragraph 18(1)(p) says that in computing the income of a personal services business, no deduction is allowed except for a short list. The salary, wages and benefits paid to the incorporated employee. The cost of benefits and allowances provided to that person. Legal expenses incurred in collecting amounts owing for the services. And certain expenses that an employee would have been able to deduct under the employment income rules.

Everything else is denied. Home office. Vehicle and mileage. Software subscriptions. Professional development. Accounting fees, including the fee for preparing the return that is being reassessed. Insurance. Marketing. Equipment. Cell phone. Bank charges.

So the arithmetic is not simply a higher rate on the same profit. It is a higher rate on a larger profit, because the expenses that produced the profit figure have been removed.

A contractor billing two hundred thousand dollars with thirty thousand in expenses and no salary is taxed as a CCPC on one hundred and seventy thousand at 12.2 per cent. As a personal services business the same corporation is taxed on the full two hundred thousand at 44.5 per cent. The tax goes from a little over twenty thousand dollars to eighty-nine thousand.

The one piece of relief in the provision is the most important planning point on this page, and it is covered further down: salary stays deductible.

Am I an Incorporated Employee? The CRA Tests

The CRA and the courts apply the same framework used to distinguish an employee from an independent contractor generally, drawn from Wiebe Door and refined in Sagaz and in the Connor Homes decision, which added the question of what the parties intended and whether the working reality matched it.

Four factors do most of the work.

Control. Who decides what is done, when, where and how. Set hours, a requirement to be available during business hours, direction from a client manager on method rather than on outcome, and approval processes for time off all point to employment. Being told what outcome is needed and left to produce it points the other way. This is the heaviest factor, and a strong result here is hard to overcome with the others.

Tools and equipment. Who supplies the laptop, the licences, the phone, the workspace. A contractor using a client-issued laptop on a client network with a client email address looks like staff. This is also the factor that is easiest to change without changing the substance of the work.

Chance of profit and risk of loss. Can the individual make more by working efficiently and lose money by working badly. Hourly billing with no warranty obligation gives neither. Fixed price work with rework at your own cost gives both. This factor is where genuine businesses look most different from employees.

Integration. How embedded the individual is in the client’s organisation. Appearing on the org chart, attending staff meetings, having a client email address, being introduced to customers as part of the client’s team, and taking internal training all weigh towards employment.

Two further questions come up constantly. Whether a substitute can be sent, which is powerful when it has actually happened and close to worthless when it is a clause nobody has used. And client concentration, which is not itself a statutory test but which shapes how every other factor reads.

Why One Client Is the Problem

Nothing in subsection 125(7) mentions the number of clients. But working almost entirely for one payer, for a long continuous period, at an hourly rate, on their premises and their equipment, is what makes the whole picture read as employment.

The practical reality is that an auditor starts with the T4A and T5018 data and the revenue concentration, and the relationships that look like a single full-time job are the ones that get looked at. A contractor with six clients and no single one above thirty per cent is very unlikely to be reviewed at all, whatever the terms of any individual engagement.

Length matters alongside concentration. A six month project for one client is a project. Four consecutive years on rolling renewals with one client is, in the eyes of an auditor, a job with extra paperwork.

Contractor Incorporation and PSB Risk in Ontario

None of this means an incorporated contractor should not incorporate. It means the risk has to be understood before the structure is built on an assumption that turns out to be wrong.

There are real reasons to incorporate that survive the personal services business rules. Limited liability. The ability to hold back income across years. Access to a business number and HST registration that some clients require. Credibility with larger payers. Contracts that a client will only sign with a corporation.

What does not survive is the tax deferral. If the corporation is a personal services business, incorporating produces a worse result than being a sole proprietor, because a sole proprietor at least deducts their expenses.

That is the honest way to frame the decision. For a contractor with a genuine book of clients, incorporation is straightforward and the deferral is real. For a contractor who has one client and expects to keep having one client, incorporation should be entered into for the non-tax reasons, with the tax treated as neutral at best.

The Salary Answer, and Why It Is the Main Planning Point

Paragraph 18(1)(p) allows a deduction for the salary, wages and benefits paid to the incorporated employee. That single exception is the difference between a manageable problem and a ruinous one.

Where the corporation pays out substantially all of its income as salary to the contractor, the corporate taxable income approaches nil. There is nothing much left for the 44.5 per cent rate to apply to. The contractor pays personal tax on the salary, which is what would have happened as an employee anyway, and the payroll source deductions are remitted along the way.

That is why the first advice on any file where the risk score is high is to move from dividends to salary. It does not fix the classification. It removes most of the consequence of losing the classification argument, and it does so prospectively without any admission about prior years.

It costs something. Salary attracts CPP at both the employee and employer rate, which dividends do not, and it removes the modest flexibility dividends offer in timing. On a high-risk file that cost is small next to the exposure.

Two cautions. Salary must actually be paid, with payroll registered and source deductions remitted, not accrued and forgotten. And a bonus accrued at year end and paid within the following one hundred and eighty days is deductible, which gives some room to decide after the year-end figures are known.

The Numbers on a Typical Contractor File

It helps to see the gap in dollars rather than in percentage points, because the percentage understates it.

Take a contractor billing two hundred thousand dollars a year, with thirty thousand of corporate expenses, taking the money out as dividends rather than salary.

Treated as a Canadian-controlled private corporation, taxable income is one hundred and seventy thousand and corporate tax at 12.2 per cent is a little over twenty thousand dollars. Treated as a personal services business, the thirty thousand of expenses disappears, taxable income is two hundred thousand, and tax at 44.5 per cent is eighty-nine thousand. The difference is roughly sixty-nine thousand dollars in a single year.

Multiply that across three open years and add arrears interest compounded daily at the prescribed rate plus four per cent, and the assessment lands somewhere north of two hundred and twenty thousand dollars before any penalty is considered. On a business that billed six hundred thousand over those years, that is a third of the gross.

Now run the same contractor paying out one hundred and eighty thousand as salary. Corporate taxable income under the personal services business rules falls to twenty thousand, and tax at 44.5 per cent is under nine thousand. The contractor pays personal tax on the salary, which is broadly what they would have paid as an employee. The catastrophic outcome has become an ordinary one.

That single comparison is why the remuneration conversation comes before the restructuring conversation on every file of this kind.

HST, Payroll and the Things That Do Not Change

A personal services business finding changes corporate income tax. It does not change several other things that contractors often assume travel with it.

HST registration and remittance continue exactly as before. The corporation is making taxable supplies of services and charges HST on them, and input tax credits on the corporation’s own purchases are a GST matter rather than an income tax deduction, so paragraph 18(1)(p) does not touch them. A contractor over the thirty thousand dollar small supplier threshold registers and remits whatever the classification.

Payroll obligations continue where salary is paid, and they become more important rather than less, since salary is the one deduction that survives. Registering a payroll account, remitting source deductions on time and filing the T4 are the evidence that the deduction is real.

The corporation remains a separate legal person. Limited liability is unaffected, contracts remain with the corporation, and the corporate filings continue on the same deadlines.

What does change, alongside the tax, is the value of most planning built on retaining income in the corporation. Holding profits back to invest, paying dividends across family members, and the small business limit all become irrelevant where the corporation is taxed at 44.5 per cent on income that cannot be sheltered by expenses.

What Can Be Changed and What Cannot

Some factors move with a phone call and some cannot move at all without changing the work.

Genuinely changeable: supplying your own laptop, licences and phone; using your own email domain rather than the client’s; invoicing on a fixed fee for defined deliverables rather than by the hour; carrying your own liability insurance; taking a second and third client even at low volume; declining to attend internal staff functions and training; writing a contract that reflects outcomes rather than hours.

Hard to change: working on the client’s premises where the work requires it; needing access to the client’s systems for security reasons; a long engagement on a project that genuinely runs for years; a client whose procurement will only contract by the hour.

The honest position is that some contractors cannot move enough factors to change the answer, because the work genuinely is what the rule describes. For those files the planning is salary and documentation rather than restructuring, and it is better to say so than to sell a reorganisation that changes nothing.

What a CRA PSB Audit on a T2 Looks Like

It usually begins as a questionnaire rather than an audit. A letter asking for the contract, a description of the work, a list of clients and their share of revenue, and details of who supplies the equipment.

The answers to that questionnaire frequently decide the file. A description written casually, admitting to set hours and a reporting manager because those are the plain facts of the day-to-day, is very hard to walk back later.

If the auditor proposes an assessment, it comes as a proposal letter with a period to respond. That response is the real opportunity, because it is cheaper and faster than an objection and far cheaper than the Tax Court.

Where the assessment is issued, the objection deadline is ninety days from the notice. After that the route is the Tax Court, and the informal procedure is available where the amounts in dispute for each year fall under the informal limit, which keeps the cost proportionate on smaller files.

Reassessment normally reaches back three years from each notice of assessment. Where the CRA alleges misrepresentation attributable to neglect, carelessness or wilful default, there is no limit, and a gross negligence penalty under subsection 163(2) of fifty per cent of the tax on the understated amount can be added. That penalty is not automatic and it is frequently resisted successfully, particularly where the contractor took advice and reported consistently.

How We Work a File Like This

We start with the contract and the reality, in that order, and we compare them. A contract describing an independent relationship that nobody follows is a liability rather than a defence, and finding that early is worth more than anything else on the file.

Then we score the factors the way an auditor would, which means honestly rather than optimistically. Where the score is high we say so.

Then we look at the remuneration. Moving to salary is usually the first and largest step, and it can normally be done for the current year without touching prior years.

Where a questionnaire or a proposal letter has already arrived, the response is drafted carefully and with the contract in front of us, because that document tends to decide the outcome.

The fee is fixed and includes HST, set once we have seen the contract and the corporate figures. Payment is by Interac e-Transfer to info@gondaliyacpa.ca, with the security question set to Not Applicable because auto-deposit is enabled.

What This Calculator Does Not Cover

It does not decide whether your engagement is a personal services business. That is a question of fact on the whole relationship and no scoring tool settles it.

It does not calculate your personal tax on the salary or dividends you take out, the CPP cost of moving to salary, or the integration between corporate and personal tax on the remaining income.

It does not deal with HST, which is charged and remitted in the ordinary way regardless of the personal services business question, or with the GST and HST consequences of a reassessment.

It does not model the associated corporation exception, the treatment where services are provided through an agency or an intermediary, or the position in provinces other than Ontario.

And it does not predict whether a gross negligence penalty would be asserted or sustained. That figure is shown as a worst case, not as an expectation.