The Tax Benefits of a Health Spending Account (HSA)

For incorporated business owners, paying for personal medical, dental, and vision expenses out of pocket is highly tax-inefficient. To generate $5,000 of after-tax cash to pay for a family's dental work, a business owner in the highest bracket might need to draw nearly $10,000 in salary or dividends. The Health Spending Account (HSA) is a significantly more efficient alternative.

What is an HSA?

An HSA is a CRA-approved mechanism that allows an incorporated business to provide tax-free health and dental benefits to its employees (including the business owner and their dependants). Unlike traditional insurance, which requires paying monthly premiums regardless of use, an HSA is essentially a corporate bank account dedicated to healthcare. The corporation only funds it when an actual medical expense is incurred.

The tax advantage

The HSA provides a double benefit:

• Corporate deduction: The amount the corporation pays into the HSA to cover the medical expense (plus the admin fee) is 100% tax-deductible
• Tax-free benefit: The employee (the business owner) receives the reimbursement completely tax-free — not added to their personal T4 or T5

Example: A business owner uses an HSA to pay for $5,000 of dental work. The corporation pays $5,000 plus a small admin fee (typically 5–10%), deducts the full amount as a business expense, and the owner receives the $5,000 tax-free. The total cost to the corporation is roughly half of what it would cost to fund the expense through a taxable salary draw.

Eligible expenses

Significantly broader than most insurance plans — almost any service provided by a licensed medical practitioner:

• Prescription drugs and eyewear
• Dental care, orthodontics, implants
• Physiotherapy, massage therapy, chiropractic care
• Psychological services
• Laser eye surgery
• Fertility treatments

Who can set up an HSA

Any incorporated business can. The CRA stipulates that the HSA must be established by the corporation in its capacity as an employer, not merely as a shareholder benefit. If you are a sole shareholder-employee, you can still establish one — but the limits must be reasonable and consistent with what would be offered to an arm's-length employee.