No, not for therapy. Speech-language pathology delivered to a person for their health is HST-exempt in Canada, so a licensed SLP does not add tax when treating a client. The taxable side is everything not delivered to a client for their care: assessments for insurers or lawyers, consulting sold to organizations, workshops, and courses. If that side passes $30,000 a year, you register and charge HST on it while your therapy income stays exempt.
Speech-language pathologists get asked this less often than massage therapists, and that is part of the problem. Because most SLP work is clearly exempt, it is easy to assume all of it is, and then a school contract or an assessment file quietly builds up a taxable income stream nobody is tracking. Here is where the line actually sits.
Therapy for a client is exempt
Speech-language pathology is on Canada’s list of exempt health professions. When you assess a client’s speech, language, voice, or swallowing and treat them for it, that service carries no HST. It makes no difference whether the client pays you directly, a parent pays, or an insurance plan reimburses the family. What matters is that a qualified SLP is providing care to an individual for that individual’s health.
Two conditions sit under the exemption. First, you need to be registered with your provincial college where the profession is regulated, or hold equivalent qualifications where it is not. Second, the service has to be rendered to an individual, a point that matters more for SLPs than for most professions, as we will get to. The exemption also carries the standard trade-off: because therapy income is exempt, you cannot claim back the HST you pay on assessment tools, software, and office space used to deliver it.
The purpose test: care or paperwork for someone else?
Since 2013, the exemption only covers services whose purpose is health care, meaning maintaining health, treating a condition, or helping a person cope with one. Professional work done for another purpose is taxable even though it uses the same clinical skills.
For an SLP that captures assessments prepared for an insurer deciding on benefits, reports written for a lawsuit, expert testimony, and file reviews giving an opinion on someone else’s treatment. The child or adult may sit in front of you for the assessment, but the real customer is the insurer or the lawyer, and the tax rules follow the purpose, not the room. Occupational therapists live with the same split, and SLPs doing capacity or accident-benefit work should treat those files the same way.
School boards and organizational contracts
A lot of private-practice SLP revenue comes through contracts with school boards, daycares, and agencies rather than from families directly. Who pays the invoice is not the issue. The issue is what the contract actually has you doing.
Therapy and assessment delivered to individual students for their own communication needs is still a service rendered to an individual, and it can stay exempt even though the board is the one paying. But work delivered to the organization itself sits outside the exemption: helping design a program, training teachers or support staff, running a workshop, advising on caseload policy. None of that is rendered to an individual for their health care, so it is a taxable service. A single school contract often mixes both, which is why the wording of the engagement deserves a close read before you decide nothing needs to be charged.
Care for the person
Speech, language, voice, and swallowing assessment and therapy provided to an individual for their own health, whoever pays for it.
Everything sold to someone else
Insurer and legal assessments, expert reports, staff training, program consulting, workshops, and courses. HST applies once you are registered.
When you have to register
The $30,000 small-supplier threshold counts taxable sales only, measured over four rolling calendar quarters. Exempt therapy income never counts toward it, so an SLP doing purely clinical work can bill well past that figure with no HST obligations at all.
Consulting, training, and assessment-report income counts in full. A practice with one steady board contract on the consulting side can cross the line faster than expected, and once it does, you are required to register, charge HST on the taxable work, and file returns while your therapy stays exempt. Registration also lets you recover HST on costs tied to the taxable side, which takes clean books that keep the two streams separate. That split is the core of what we set up for mixed clinics, and getting it wrong cuts both ways: miss the registration and you owe tax you never collected, blur the streams and you can remit tax that was never due.
Common questions
I am employed by a school board or health authority. Does this affect me?
No. Employment income is not a sale, so HST never applies to your salary. These rules start to matter when you invoice families, boards, or agencies as your own practice.
Does virtual therapy change anything?
The exemption follows the same rules, but it depends on being properly licensed or qualified where the service is supplied. If telepractice has you working across provincial lines, confirm your registration covers it before assuming the exemption does.
I sell home-practice materials and a parent course. Taxable?
Yes, treat both as taxable by default. Product and course sales are separate from your exempt therapy, and they count toward the $30,000 threshold from the first dollar.
Running therapy, contracts, and a bit of consulting through one practice and not sure what should carry HST? Send us a note and we will map the line for you.