The one benefit that is real
Strip away the folklore and the corporation does a single powerful thing: clinic profit retained inside it is taxed at roughly 12.2% on the first $500,000 in Ontario instead of a personal rate that can pass 53%, and the difference compounds until you take the money out. If you spend most of what you bill, that engine has no fuel, and the corporation mostly buys you filings.
Two things it does not do. It gives no protection against professional negligence claims; liability follows the physiotherapist personally and your professional liability insurance remains the real shield. And unlike physicians and dentists, whose corporations may issue non-voting shares to family, an Ontario physiotherapy PC is member-only: every share must be held by a registrant of the College. Anyone promising you dividend sprinkling through a physio PC is describing a corporation you are not allowed to have.
What the College of Physiotherapists requires
The PC is an Ontario business corporation with a health-professions rulebook bolted on, and it cannot practise until the College of Physiotherapists of Ontario issues a Certificate of Authorization, kept current with the College thereafter. The articles and the name have to be right the first time or the application bounces.
The member-only rule cuts both ways for partners. Two or three physiotherapists can co-own a single PC, or each can hold their own corporation with the clinic run as a cost-sharing arrangement between them; the first is simpler to run, the second is cleaner to unwind when someone leaves. Which fits depends on how permanent the partnership really is, and it is far easier to choose before the articles are filed than to reorganize after.
| Requirement | The rule |
|---|---|
| Shareholders | Members of the College of Physiotherapists of Ontario only, every share, no family holdings |
| Directors and officers | Must be shareholders, so physiotherapist members |
| Corporate name | Includes a shareholder surname, identifies the profession, ends in Professional Corporation |
| Permitted business | Restricted to practising physiotherapy plus related or ancillary activities, including temporary investment of surplus funds |
| Authorization | Certificate of Authorization from the College before the corporation treats a single patient |
The break-even, honestly
Against the deferral sits a permanent overhead: incorporation costs, an annual T2, the College certificate, corporate records, and payroll filings if you take salary. For an associate on a 60% split renting a room and spending most of what comes in, that trade is usually a loss, and we will say so. A sole proprietor at that stage often gets more value from clean T2125 filings plus CPA Quick Support at $99 a month for the questions between filings than from a corporation held for status.
The picture flips for clinic owners with margin. An owner drawing $120,000 to live on while the clinic clears $220,000 is leaving six figures to compound at 12.2%, and the corporation pays for itself many times over. Somewhere between those two people is a line; a free 15-minute discovery call is usually enough for us to tell you which side of it you are on.
Sequencing the switch
Income earned before the Certificate of Authorization exists is personal income, so the changeover date cuts a hard line through your year, and the pieces have to land in order: articles of incorporation, the College application, then the corporate bank account and CRA program accounts, payroll registration if salary is part of the plan, and a fiscal year-end chosen deliberately rather than defaulting to December 31.
An established sole proprietor is not starting from zero, and the practice itself, equipment, patient goodwill, the leasehold interest, can usually move into the new corporation on a tax-deferred basis under a section 85 rollover instead of triggering gains on the way in. It is routine work when planned and a genuine mess when skipped, so we treat the rollover election as part of incorporation, not an afterthought for the first T2.
Rehab clinics carry one extra step most professions skip: the billing rails. HCAI enrolment, any FSRA service provider licence for direct insurer payment, extended-health direct-billing registrations and WSIB arrangements all reference an entity, and each needs to point at the corporation so post-incorporation revenue lands in the right taxpayer. Miss one and you spend a year explaining deposits that belong to a company but arrived in your name. Our Incorporation engagement runs the articles, the College application and the CRA setup as one sequenced package, quoted in writing, with the first year-end handed to Tax Planning & Advisory so the new structure gets used, not just owned.
