HST on Healthcare and Medical Services in Ontario: What's Exempt and What Isn't

Most health care in Ontario doesn't have HST added to the bill, which lines up with most people's expectations. But "health-related" and "HST-exempt" aren't perfectly the same thing under the Excise Tax Act — a range of cosmetic and elective procedures fall outside the exemption entirely and are fully taxable, which surprises both patients and, occasionally, the practitioners billing for them.

The Basic Rule: Medical Purpose Matters

The exemption for health care services generally turns on whether a service is provided for a genuine medical, therapeutic, or reconstructive purpose by an appropriately qualified practitioner — not simply on whether it happens to be performed by someone with a health care license. A service performed purely for cosmetic reasons, with no medical or reconstructive purpose, is treated differently even when the provider is a licensed physician, dentist, or other regulated professional.

Generally Exempt

• Core physician services provided for a medical purpose
• Core dental services aimed at oral health and function
• Many services provided by other regulated health professionals acting within their scope of practice, for a health-related purpose
• Hospital and similar institutional health care services

Generally Taxable

• Cosmetic procedures — surgical or non-surgical — performed for purely aesthetic reasons, with no medical or reconstructive purpose
• Elective services that a licensed practitioner may offer alongside their exempt medical practice, where the elective service itself has no medical purpose

Quick Reference

This table reflects the general framework, not an exhaustive list — many services sit closer to the line than these examples, and the right answer depends on the specific purpose of the specific procedure for the specific patient.

Why This Distinction Exists

The health care exemption is meant to keep tax off medically necessary care. Extending that same exemption to elective cosmetic procedures — which are a matter of personal choice rather than medical need — would go well beyond that policy goal, which is why the Excise Tax Act treats purely cosmetic services as ordinary taxable supplies.

What This Means for Practitioners

If you run a practice that offers both medically necessary services and elective cosmetic services — a dermatology, dental, or plastic surgery practice, for example — you're likely operating with both exempt and taxable revenue streams under one roof. That has two practical consequences:

1. You need to correctly identify and separately track which specific procedures are exempt and which are taxable, since the same general category of service — surgery, an injection, a dental procedure — can fall on either side depending on its purpose.
2. You'll need to apportion input tax credits between your exempt and taxable activities for shared costs — equipment, facility costs, and administrative overhead used for both kinds of procedures.

Getting this wrong in either direction creates a problem: undercharging HST on a taxable cosmetic service exposes the practice to a reassessment, while overcharging HST on a genuinely exempt medical service creates a different kind of dispute with patients and potentially with CRA.

Frequently asked questions