Accounting & Tax for Canadian Dental Practices
Dental practice accounting in Canada involves unique tax planning considerations that set it apart from general small business accounting. The professional corporation structure, HST/GST on dental services, associate compensation arrangements and the high income levels typical of dental practices all create specialised accounting and tax planning needs.
A qualified CPA (Chartered Professional Accountant) with specific dental practice experience is an essential advisor for any Canadian dentist. The tax savings achievable through proper professional corporation structure and income splitting can easily exceed $50,000–$150,000 annually for dentists with established practices.
Professional CorporationProfessional Corporations for Canadian Dentists
Most Canadian provinces permit dentists to operate through a Professional Corporation (PC), which offers significant tax advantages over operating as a sole proprietor:
- Small Business Deduction (SBD): Active business income up to $500,000 in a Canadian-Controlled Private Corporation (CCPC) is taxed at the small business rate (typically 9–12.2% federally + provincially) rather than the personal top marginal rate (46–54% combined). This creates a substantial tax deferral on income retained in the corporation.
- Income Splitting: Subject to Tax on Split Income (TOSI) rules, dentists may be able to pay dividends to family members who are shareholders, reducing overall family tax burden.
- Lifetime Capital Gains Exemption (LCGE): Sale of qualifying small business corporation shares may be eligible for the LCGE (approximately $1,016,602 in 2026), significantly reducing capital gains tax on practice sales.
- Retained Earnings Investment: Income retained in the corporation can be invested through a corporate holding company at the lower corporate tax rate, allowing significantly more capital to compound over time compared to investing after-tax personal income.
Tax Note: This page provides general informational content about dental practice taxation in Canada. Tax rules are complex, change frequently and depend on individual circumstances. Always consult a qualified CPA experienced in dental practice taxation before making any tax planning decisions.
GST/HST for Canadian Dental Practices
Most dental services in Canada are exempt from GST/HST as health care services. This means dental practices do not charge GST/HST on most treatment services, but also cannot claim Input Tax Credits (ITCs) for GST/HST paid on most practice expenses.
Key exceptions and considerations:
- Cosmetic procedures that are not medically necessary may be taxable for GST/HST purposes
- Sale of products (toothbrushes, whitening kits) is generally taxable
- Dental laboratory services billed separately may have different GST/HST treatment
- Associates operating as independent contractors must register for GST/HST if their billings exceed $30,000 annually
Key Tax Planning Strategies for Canadian Dentists
| Strategy | Potential Benefit | Complexity |
|---|---|---|
| Professional Corporation | $20,000–$80,000+/yr tax deferral | Medium |
| Income Splitting (TOSI-compliant) | $10,000–$40,000+/yr saving | High |
| Holdco Structure | Long-term wealth accumulation | High |
| RRSP Maximisation | $30,780/yr (2026 limit) | Low |
| IPP (Individual Pension Plan) | Higher deduction than RRSP | High |
| LCGE on Practice Sale | $1M+ tax-free | Requires planning |