Benji VisserIf you run a corporation in Canada, an HSA is usually set up as a Private Health Services Plan (PHSP).
When it is set up properly, your business can write off the reimbursements, and your employees do not pay tax on the money they receive. But the tax benefit only works if the plan actually qualifies as a PHSP.
This guide covers what you need to know to get it right.
What an HSA is, in tax terms
There is no special "HSA" section in the tax code. An HSA is just the name for a plan where your business reimburses medical expenses. Under the hood, it is structured as a PHSP.
That is what makes the tax benefit work. Instead of paying yourself extra salary, paying tax on it, and then paying the medical bill personally, your corporation pays the bill directly through the plan. The business gets the deduction, and the employee gets the money tax-free.
How the tax treatment usually works
The basic flow is straightforward:
- An employee incurs an eligible medical expense
- They submit the receipt
- The claim is reviewed under the plan terms
- The corporation or administrator reimburses the amount
- The corporation claims the reimbursement as a business expense if the plan qualifies
If the arrangement is a qualifying PHSP, the reimbursement is generally not included in the employee's income. Not every plan that calls itself an HSA automatically qualifies though.
For a deeper look at what CRA requires, see our PHSP explainer.
Who this is usually relevant for
This type of setup is usually relevant for:
Incorporated business owners — consultants, freelancers, contractors, e-commerce sellers
Professional corporations — doctors, dentists, lawyers, accountants, engineers, veterinarians, chiropractors, optometrists, architects, pharmacists
Small businesses with employees — agencies, trades, restaurants, retail, cleaning companies, landscapers
Owner-managers who already have meaningful eligible medical expenses like regular dental work, prescriptions, glasses, physio, or therapy
Whether it is worthwhile depends on the facts. The tax treatment may be favourable, but the plan still has to be administered properly and the expenses still have to qualify.
How it is usually reported
On the corporate return
The corporation deducts the reimbursements and any admin fees as a business expense, just like it would deduct salaries or office rent. Most companies book it under employee benefits or compensation. There is no special form for this. It goes on the return as a regular operating expense.
On the T4
If the plan qualifies as a PHSP, the reimbursement does not show up as taxable income on the employee's T4. That is the whole point. The employee gets the money, but it is not treated as salary or a bonus. If the employee also makes contributions to the plan, those use the PHSP contribution codes on the T4, but that is rare for small businesses.
On the personal return
The employee does not report the reimbursement as income on their personal tax return. It is excluded from employment income. This is different from a bonus or raise, which would be taxable. The reimbursement simply does not appear as income anywhere.
Can you also claim the Medical Expense Tax Credit?
You cannot claim the same expense twice.
If your HSA already reimbursed you for a $500 dental bill, you cannot also claim that $500 on your personal tax return as a medical expense. The CRA does not let you double dip.
But if you paid $500 and the HSA only covered $300, you may be able to claim the remaining $200 on your personal return through the Medical Expense Tax Credit.
What types of expenses may qualify
An HSA can generally reimburse medical expenses that fit both the plan terms and CRA rules. Some expenses are also province-specific, meaning they may be eligible in one province but not another.
Common examples may include:
- dental expenses
- prescription drugs
- vision care
- physiotherapy
- chiropractic
- psychology and counselling
- acupuncture
- naturopathy
- fertility-related expenses in qualifying cases
- certain medical devices such as hearing aids, CPAP machines, and orthotics
For a fuller breakdown, see our eligible expenses page.
Some items are generally not eligible, such as gym memberships, vitamins, supplements, and cosmetic procedures done only for appearance.
Recordkeeping matters
A compliant structure is only part of the picture. You also need records.
In general, you should keep:
- receipts and supporting claim documents
- the written plan document
- employment agreements that reference health benefits
- administrator invoices or statements, if applicable
- corporate minutes establishing the PHSP
- T4 slips and payroll records
A card statement on its own is usually not enough. A proper receipt should generally show the provider, the date, the amount paid, and what was provided. CRA generally expects records to be kept for six years.
Common mistakes business owners make
These are the issues that can cause CRA to deny the tax benefit. Some of them are things your HSA provider should handle for you. One of them is on you.
Reimbursing expenses that are not actually eligible
If the plan pays for something that is not on the CRA's list of eligible medical expenses, the plan can fail the PHSP tests. Frontier HSA reviews every claim against CRA rules before approving it, so ineligible expenses are rejected before they become a problem.
Having no written plan document
CRA can ask to see the plan that governs your HSA. If there is no written document, there is nothing to show them. Make sure your HSA provider gives you a written plan document, or ask your accountant to draft one.
Assuming every HSA provider is automatically compliant
The tax treatment depends on how the plan is actually structured, not what the provider calls it. Frontier is structured as a cost-plus PHSP with arm's-length administration, which is what CRA looks for.
Mixing personal or wellness spending into the plan
Things like gym memberships, supplements, and cosmetic procedures are not eligible medical expenses. If they get reimbursed through the plan, it can disqualify the whole arrangement. Frontier rejects these claims during review.
Not having an employment relationship with your corporation
This one is on you, not your HSA provider. For an HSA to work from a CRA perspective, there needs to be an employment relationship between you and your corporation. The way you pay yourself does not strictly determine this. Some owner-managers take mostly dividends while others take T4 salary, and both can work.
What matters is that you are actually employed by the corporation, not just a shareholder. If CRA sees you as only a shareholder with no employment relationship, they may treat the HSA benefit as a taxable shareholder benefit instead of a tax-free employee benefit. Having an employment agreement and paying yourself at least some T4 salary or bonus makes this easier to defend.
What happens if the plan is not compliant
If CRA takes the view that the arrangement does not qualify as a PHSP, the result can change materially.
For example:
- the reimbursement may become taxable to the employee
- the corporation may lose the deduction
- CRA may reassess prior years
- penalties and interest may apply
That is why the key issue is not whether a plan is called an HSA. The key issue is whether it is structured and operated properly.
Bottom line
If you are an incorporated business owner with regular medical expenses, an HSA is one of the most tax-efficient ways to pay for them. Your corporation gets the deduction, and you get reimbursed tax-free. The key is making sure your plan is set up properly and your expenses actually qualify.
If you are an accountant or tax professional looking for a more detailed technical guide, see our Accountant's Guide to PHSPs. It covers the legal foundation, plan structure requirements, shareholder-employee participation rules, and CRA compliance in depth.
Related Reading
- HSA eligible expenses in Canada: complete list — What CRA-eligible claims look like
- What is a Health Spending Account in Canada? — How HSAs work step by step
- HSA vs Insurance in Canada — When an HSA beats group health insurance
- CRA medical expenses in Canada — What the CRA requires
- HSA FAQ — Common questions about HSAs in Canada