Advice borrowed from dentists mostly does not fit
Most hygienists first hear about incorporating from the dentist whose office they work in, and much of what they hear does not transfer. Ontario's family-share carve-out, the rule that lets non-voting shares sit with a spouse, parent or child, applies to physicians and dentists only. A dental hygiene Health Profession Corporation gets no version of it: every share must be legally and beneficially owned by a CDHO registrant. No spouse on the register means no family dividends, so the corporation has to justify itself on two things: deferral, and a possible claim on the $1.25 million lifetime capital gains exemption if a qualifying clinic is one day sold as shares.
Deferral is a real prize, not a consolation. Profit retained inside the corporation is taxed at the small-business rate and goes back to work at close to 88 cents on the dollar, funding the next operatory or the better van years sooner than after-personal-tax savings could.
What the corporation changes, and what it leaves untouched
| Item | After the HPC |
|---|---|
| Tax on profit kept in the practice | Roughly 12.2% on the first $500,000 of active income, instead of your marginal rate |
| Your HST position | Unchanged: hygiene services stay exempt and the corporation recovers no ITCs on the van or the portable unit |
| Clinical liability | Unchanged: CDHO accountability and professional liability coverage stay personal |
| Who may own it | CDHO registrants only, with no family shareholdings |
| Annual paperwork | More: a T2 return, a minute book, and the certificate of authorization renewed with the College |
The HST row surprises people most. Incorporating changes how income is taxed; it does not change what the practice sells. An exempt practice inside a corporation still pays its 13% on every purchase with no refund coming, so anyone pitching incorporation as an HST fix is selling something else.
The yes, the not-yet, and the difference between them
The corporation pays off only when profit actually stays inside it. A mobile practice whose earnings are fully consumed by the household gains a filing obligation, not a structure. The picture changes when the book is full and earnings run past the draw, when a second household income keeps what you need personally low, or when an expansion, an associate hygienist, a second chair, a properly fitted van, would otherwise be funded from after-personal-tax dollars. A useful test: if the practice bank balance grew last year without you trying, the deferral is already there waiting for a structure to hold it.
Set against that: the incorporation itself, a corporate return every year, and the College's renewal fee, payable whether or not any deferral happened. Not yet is a respectable answer, and we give it often. CPA Quick Support keeps a CPA on call for the incorporate-or-wait question itself, and we revisit the math as bookings and profit grow.
Paperwork in the order the CDHO expects
Our Incorporation service runs the sequence end to end. Articles are filed under the Ontario Business Corporations Act, restricted to the practice of dental hygiene and related activities, under a name that carries a shareholder's surname, identifies the profession and ends with Professional Corporation. The CDHO then issues the certificate of authorization, and only after that may the corporation practise or bill. Billing corporately while the certificate is still pending is the mistake that costs the most cleanup, and the easiest one to avoid.
Moving an existing practice in is its own project. The portable unit, the van and the patient goodwill transfer under a Section 85 rollover so the move itself triggers no tax. The operatory rent or revenue-split agreement gets re-signed in the corporate name, and CDCP and insurer billing details are updated so deposits land in the corporate account from the first appointment. We open the CRA program accounts the practice actually needs, corporate tax from day one, payroll only when a salary starts, and choose a fiscal year-end that fits the practice's cash rhythm instead of defaulting to December.
From there the structure starts working. The salary-dividend mix, the retained-profit strategy and the annual second look at whether the HPC still earns its keep all carry on through Tax Planning & Advisory, with every engagement quoted in writing after a free 15-minute discovery call.
