$30,000 HST Registration Threshold in Ontario (2026)

The Short Answer

The HST registration threshold — the line between “small supplier” (no registration required) and “registrant” (must charge and remit HST) — is $30,000 in taxable supplies over any four consecutive calendar quarters. For Ontario wellness clinics, the critical point is that HST-exempt services do not count toward this threshold. Only taxable revenue (typically product sales and room rentals) matters.

A chiropractor earning $300,000 per year entirely from chiropractic adjustments has zero taxable supplies and never needs to register. The same chiropractor selling $35,000 of orthotics and supplements annually must register.

The Full Explanation

The $30,000 Small Supplier Threshold

Under the Excise Tax Act, a business is a “small supplier” and exempt from mandatory HST registration if its total taxable supplies do not exceed $30,000 in a single calendar quarter or in the previous four consecutive calendar quarters. Once taxable supplies exceed this amount, the business is no longer a small supplier and must register under CRA’s timing rules.

For individuals (sole proprietors), the threshold is measured on your personal business revenue. For corporations, it is measured at the corporation level.

What Counts — and What Doesn’t

Counts toward the threshold:

• Product sales (supplements, massage oils, equipment, and most orthotics)
• Zero-rated supplies — these are taxable at 0% (e.g., certain custom/prescribed medical devices and exports), so they count toward the threshold even though no tax is charged
• Room rentals to other practitioners
• Non-regulated services (wellness coaching, esthetic services by unregistered staff)
• Any other taxable supply your business makes

Does NOT count toward the threshold:

• HST-exempt professional services (chiropractic, physiotherapy, acupuncture/TCM, and naturopathic services — when provided by registered practitioners). Exempt supplies are the only category excluded from the small-supplier calculation.

Important exception — RMT services are taxable, not exempt: Registered massage therapy services are subject to 13% HST. Unlike the other four regulated practice types above, massage therapy is not listed in Schedule V, Part II of the Excise Tax Act. All RMT service revenue therefore counts toward the $30,000 threshold. A full-time RMT earning $80,000 per year in treatment fees will cross the threshold and must register for HST.

This distinction is critical for wellness clinics. A naturopathic doctor with $200,000 in professional fees (exempt) and $25,000 in supplement sales (taxable) is a small supplier — because only the $25,000 counts. At $31,000 in supplement sales, registration is required.

When Registration Is Triggered — The Timing Rules

Two scenarios can trigger mandatory registration:

Exceeding $30,000 in a single calendar quarter: If your taxable supplies exceed $30,000 in any single quarter, CRA says your effective registration date is no later than the supply that made you exceed $30,000. You must start charging HST on that supply and register within 29 days of the effective registration date.

Exceeding $30,000 over four consecutive quarters: If your taxable supplies over the previous four or fewer consecutive calendar quarters exceed $30,000, but not in one quarter, CRA says you are no longer a small supplier at the end of the month following the quarter in which you exceeded $30,000. Your effective registration date is no later than your first taxable supply after that date, and you register within 29 days of that effective date.

Once you register, you must charge HST on all taxable supplies going forward. You do not retroactively charge HST on supplies made before you hit the threshold.

After Registration — What Changes for a Wellness Clinic

Once registered:

1. Charge HST on taxable supplies — 13% on all taxable products and services you sell
2. Continue not charging HST on exempt services — registration doesn’t make your exempt services taxable
3. File HST returns — quarterly is common for most registrants; annually is available for small businesses
4. Claim input tax credits (ITCs) — on expenses reasonably related to your taxable supplies
5. Keep records — supporting documentation for all HST collected and ITCs claimed

For a wellness clinic with mixed exempt/taxable revenue, this means separate revenue tracking, expense allocation, and quarterly reporting — a meaningful administrative increase.

Voluntary Registration Below the Threshold

Voluntary HST registration is permitted below the $30,000 threshold. A registrant can claim input tax credits only on expenses related to its taxable activities — registration does not unlock ITCs on expenses tied to exempt services. For a clinic whose revenue is mostly exempt (for example, 90% exempt chiropractic services and 10% taxable product sales), only the expenses related to the taxable 10% would generate ITCs, while registration adds separate revenue tracking, expense allocation, and quarterly reporting.

Voluntary registration therefore tends to be relevant where a clinic has significant taxable expenses (such as a retail build-out) or taxable revenue approaching the threshold.

What This Means for Your Clinic

The key action item: track your taxable revenue separately from your exempt revenue, and monitor it against the $30,000 threshold. If you sell supplements, orthotics, or other products, you need a running total of those sales — not just your overall revenue.

Crossing the threshold without registering creates a retroactive HST liability. The CRA can assess unremitted HST on taxable supplies you should have been charging since the date you became a registrant, plus interest and penalties.

Wellspring Accounting monitors HST thresholds for all clients with mixed revenue streams. See our naturopathic accounting services for an example of how we manage this, or read our bookkeeping guide for Ontario wellness clinics.