How much of your clinic is actually exempt?
Less than most owners assume. The exemption in the federal legislation attaches to physiotherapy services rendered to an individual by a licensed physiotherapist, not to everything a rehab clinic invoices. The moment a registered massage therapist or a kinesiologist treats under your roof, or a patient buys a brace at the desk, the clinic is making taxable supplies, and the tax return has to reflect a business with two different HST personalities.
Getting the boundary right matters twice. It decides what you must charge patients, and it decides which of your costs earn input tax credits back. We draw the line service by service before we file anything.
| What the clinic sells | HST treatment in Ontario |
|---|---|
| Physiotherapy by a licensed physiotherapist | Exempt: no HST charged, no input tax credits on related costs |
| Massage therapy (RMT) | Taxable at 13%; the June 2024 exemption covered psychotherapy and counselling therapy, not massage |
| Kinesiology and personal training | Taxable at 13%; kinesiologists are regulated in Ontario but not on the federal exempt-practitioner list |
| Braces, supports and retail products | Taxable at 13% once the clinic is registered |
| Custom-made orthotics on prescription | Zero-rated: 0% charged, with credits available on related inputs |
The $30,000 test counts only the taxable side
Exempt physiotherapy revenue never counts toward the small-supplier threshold. A clinic can bill $900,000 of physiotherapy with no HST obligations at all, while a clinic with $35,000 of massage and retail must register and start charging. The test runs on taxable supplies over four rolling calendar quarters, so a growing massage roster can tip you across mid-year, and charging late is an expensive way to find out.
Once registered, the clinic charges 13% on the taxable lines only, and the return needs a defensible method for splitting shared overhead. Rent, utilities and admin wages serve both sides of the practice, so input tax credits get apportioned on a fair and consistent basis, usually revenue share or space use. Claim nothing and you overpay; claim everything and the first HST review claws it back with interest. We document the method once and apply it every period.
Getting the boundary wrong is not a rounding error in either direction. Fail to charge on taxable massage revenue and the CRA can assess the clinic for the uncollected 13% plus interest, tax you never received from patients and now pay yourself. Charge HST on exempt physiotherapy by mistake and you have collected tax that still has to be remitted or properly refunded to patients, plus insurers who reimbursed it start asking questions. Filing frequency deserves a decision too: annual filing suits a small taxable side, while quarterly filing returns credits on equipment faster and smooths the cash impact for a clinic with a busy massage roster.
The corporate return behind the clinic
For an incorporated clinic, the T2 is where the year lands: about 12.2% combined Ontario rate on the first $500,000 of active income, the return due six months after year-end, and the balance owing three months after year-end for most clinics claiming the small business deduction. Because the exempt side recovers no HST, the 13% on treatment tables, shockwave units and software sits inside their capital cost, and we make sure the CCA schedule reflects that rather than the sticker price.
Our Corporate Tax Filing engagement covers the T2, the HST returns on the right frequency, and the instalment schedule once corporate tax passes $3,000, reset annually so a strong MVA year never leaves you quietly underpaid. Filing positions that deserve forward planning, owner pay among them, move into Tax Planning & Advisory rather than being improvised at the deadline.
Filing season is also when contractor arrangements get tested on paper. Clinicians paid on percentage splits are deducted as contract services, not wages, and the return is stronger when the agreements, invoices and the day-to-day facts all tell the same story before the CRA asks.
Sole practitioners file too
Plenty of physiotherapists in Mississauga practise unincorporated, renting a room or contracting to a clinic on a split. Their year lands on a T2125 inside the personal return: professional income, home-office and vehicle claims where the facts support them, College fees and insurance, and CPP on net earnings. The same exempt-taxable logic applies at any size, and our Personal Tax Filing handles it without treating a working clinician like a shoebox client. Either way, the quote comes in writing after a free 15-minute discovery call.
Source: CRA — GST/HST for businesses.
