Health Spending Accounts: turning medical costs into a business expense

Every incorporated owner pays for dental work, prescriptions, glasses or physiotherapy eventually. The question is whether those dollars come out of your pocket after tax, or out of the corporation as a deductible expense. A properly structured Health Spending Account is one of the more straightforward ways to shift that cost onto the business side of the ledger — but "properly structured" is doing a lot of work in that sentence.

What a Health Spending Account is

An HSA is a type of private health services plan: an employee benefit plan that reimburses medical and dental expenses to an employee — including an owner who is also an employee of their own corporation. The corporation funds the plan and deducts the cost as a business expense; the employee generally doesn't report the reimbursed amount as personal taxable income. In effect, it converts routine healthcare spending you'd pay for anyway into a business cost.

Why it typically beats paying personally

Pay a dental bill personally, and it comes from income you've already paid personal tax on, with only a limited personal medical expense tax credit available above a threshold. Route the same expense through a properly administered HSA, and the corporation deducts the full cost, while the amount reimbursed to you is generally not taxable income at all. For an owner with predictable, recurring medical and dental costs, that difference adds up year after year.

The eligibility conditions that matter most

The plan only holds up if there's a genuine employment relationship behind it. The person receiving the benefit — owner or family member — needs to actually be an employee or shareholder performing real duties, and the overall compensation package needs to be reasonable for that role. An HSA set up for someone with no real involvement in the business, or used as the only form of compensation with no salary at all, is a common flag on review. CRA looks past the paperwork to whether the underlying relationship is real.

Why third-party administration matters

Most CRA-accepted HSA structures run through a licensed third-party administrator that adjudicates claims against defined eligible expense categories, keeps the plan properly documented, and issues plan statements at arm's length from the owner. Informal arrangements — where an owner simply reimburses themselves for medical bills and calls it an HSA — are far more likely to be challenged. We help clients set up plans through a proper administrator rather than an ad hoc arrangement.

What typically qualifies

Eligible expense categories generally track the same list used for the personal medical expense tax credit: dental work, vision care, prescription drugs, and paramedical services such as physiotherapy, massage or chiropractic care, among others. Categories can be updated, so check the current eligible-expense list with your plan administrator before assuming an expense qualifies.

When it beats simply paying personally

An HSA tends to make the most sense for owners or families with recurring, predictable medical, dental or vision costs, or for those without much coverage through an outside benefits plan. It works best once a reasonable salary is already in place, since that satisfies the employment-relationship test and lets you layer the HSA on top. It's less useful for a corporation with little or no payroll or profit, since the deduction only helps if there's income for it to offset.

The bottom line

Structured properly — real employment relationship, third-party administrator, defensible eligible expenses — an HSA is one of the cleaner ways to convert routine medical spending into a deductible business expense. Structured casually, it's an audit risk waiting to happen. We help clients set these up correctly as part of our accounting & advisory work.

This article is general information for Canadian business owners and is current as of July 2026. It is not tax, legal or accounting advice, and it does not create a client relationship. Tax rules change and your situation is unique — please speak with a CPA before acting on anything here.

About the author

Sunny Dhillon, CPA

Founder of EverStone CPA, an Abbotsford CPA firm, and a member of the Chartered Professional Accountants of British Columbia (CPABC). Sunny works with incorporated contractors and small business owners across Canada on tax, bookkeeping and advisory. More about Sunny →