Physician Practice Incorporation
Optimize your tax structure
Professional Corporation Benefits
Incorporating your medical practice creates significant tax planning opportunities as part of your overall financial planning for physicians. The difference between corporate and personal tax rates allows you to defer taxes and invest more money inside the corporation.
Beyond tax benefits, incorporation provides income splitting opportunities and enhances creditor protection. According to the Canadian Medical Association, the majority of Canadian physicians now operate through professional corporations. Consider corporate-owned life insurance for tax-efficient wealth accumulation.
Each province has specific requirements governed by the provincial College of Physicians. Understanding these requirements is critical for proper incorporation setup.
Incorporation Advantages
Tax Deferral
Pay ~12% corporate tax vs 50%+ personal, leaving more capital working for you inside the corporation.
Income Splitting
Pay eligible dividends to family shareholders to distribute income across lower tax brackets.
Corporate Investing
Build an investment portfolio inside your corporation with tax-deferred retained earnings.
Asset Protection
Some protection from personal liability, though medical malpractice remains personal in most cases.
2026 Tax Savings Comparison (Ontario)
The gap between personal and corporate tax rates creates substantial deferral opportunities. These savings can be invested for compound growth inside the corporation.
| Practice Income | Personal Tax | Corporate Tax (SBD) | Annual Deferral |
|---|---|---|---|
| Income $300,000 | ~$130,000 (43%) | ~$36,000 (12%) | $94,000 deferred |
| Income $400,000 | ~$185,000 (46%) | ~$48,000 (12%) | $137,000 deferred |
| Income $500,000 | ~$240,000 (48%) | ~$60,000 (12%) | $180,000 deferred |
| Income $600,000 | ~$295,000 (49%) | ~$72,000 (12%) | $223,000 deferred |
| Income $750,000 | ~$375,000 (50%) | ~$90,000 (12%) | $285,000 deferred |
*Assumes eligible for Small Business Deduction (~12% rate). Rates vary by province. Personal taxes assume no deductions.
Incorporation Process & Timeline
The incorporation process typically takes 6-12 weeks depending on provincial regulatory timelines. Here's what to expect:
| Step | Timeline | Typical Cost | Details |
|---|---|---|---|
| 1. Reserve Corporate Name | 1-2 weeks | $50-$100 | Search and reserve name through provincial registry (must include 'Professional Corporation') |
| 2. Obtain Provincial Approval | 2-8 weeks | $200-$500 | Apply to CPSO/CPSBC/CPSA for certificate of authorization |
| 3. File Articles of Incorporation | 1-2 weeks | $300-$500 | File with provincial corporate registry with approved articles |
| 4. Create Corporate Records | 1 week | $500-$1,500 | Minute book, bylaws, share certificates, organizational resolutions |
| 5. Register for CRA Accounts | 2-4 weeks | Free | Corporate tax account, payroll account, GST/HST registration |
| 6. Set Up Banking & Insurance | 1-2 weeks | Varies | Corporate bank accounts, update professional liability, business insurance |
| 7. Transfer Billing/Contracts | 2-4 weeks | Varies | Notify provincial health plan, update hospital privileges, billing numbers |
Total typical cost: $2,000-$5,000 including legal and accounting fees. Annual maintenance: $1,500-$3,000.
Common Incorporation Mistakes
- Incorporating too early
Wait until personal income consistently exceeds $150,000-$200,000 before incorporating
- Not paying yourself optimally
Pay salary to maximize RRSP contribution room and CPP credits, then dividends for the rest
- Ignoring investment income taxation
Use corporate-owned life insurance or other tax-efficient vehicles for corporate investments
- Improper shareholder loans
Repay shareholder loans within one year-end, document all loans properly
- Neglecting annual compliance
Calendar reminders for annual filings, work with accountant experienced in professional corporations
- Not updating estate plan
Review will and estate plan with lawyer immediately after incorporation
Keys to Incorporation Success
- Work with experienced professionals
Proper structure from day one avoids costly corrections later
- Optimize salary/dividend mix
Maximizes both current benefits and long-term tax deferral
- Maximize small business deduction
Maintains 12% corporate tax rate on maximum possible income
- Consider holding company structure
Separates operating risk from accumulated wealth
- Plan corporate investments strategically
Tax-deferred growth plus tax-free death benefit to shareholders
- Review structure annually
Captures new opportunities and adapts to tax law changes
Corporate-Owned Life Insurance Strategy
One of the most powerful tax strategies for incorporated physicians is using corporate-owned permanent life insurance. This addresses the passive investment income problem (taxed at ~50% inside the corporation) while providing additional benefits:
Tax Benefits
- - Tax-deferred cash value growth
- - Tax-free death benefit to corporation
- - Capital dividend account credits
- - Tax-free policy loans for retirement income
Strategic Uses
- - Estate liquidity for tax obligations
- - Buy-sell agreement funding
- - Key person protection
- - Retirement income supplementation
Major Canadian insurers including Sun Life, Manulife, and Canada Life offer specialized products designed for professional corporations.
Income Splitting and TOSI Rules
The Tax on Split Income (TOSI) rules, introduced in 2018, significantly limit the ability to split income with family members through dividends from your professional corporation. Under TOSI, dividends paid to family members who do not meaningfully contribute to the business are taxed at the highest marginal rate.
However, several important exceptions exist that physicians can leverage:
Spouse Age 65 or Older
Once your spouse turns 65, TOSI no longer applies to eligible dividends paid from your professional corporation, making income splitting straightforward again.
Spouse Actively Contributing
If your spouse works in the practice at least 20 hours per week, reasonable compensation for their contributions is excluded from TOSI. Document their role, hours, and responsibilities carefully.
Adult Children Involved in Business
Adult children (18+) who are actively engaged in the business on a regular, continuous, and substantial basis can receive dividends without TOSI applying.
Lifetime Capital Gains Exemption
When you sell your medical practice, the Lifetime Capital Gains Exemption (LCGE) can shelter up to $1.25 million in capital gains from tax - currently worth over $330,000 in tax savings. If your spouse or family members hold shares, each individual can claim their own LCGE, potentially multiplying the benefit.
To qualify, your corporation must meet three tests at the time of sale: it must be a Canadian-Controlled Private Corporation (CCPC), more than 90% of assets must be used in active business at the time of sale, and more than 50% of assets must have been used in active business throughout the 24 months preceding the sale.
This last requirement is why "purification" planning is essential. If your corporation holds significant passive investments, you may need to remove them through dividends, transfer them to a holding company, or use other strategies at least two years before a planned sale.
When Does Incorporation Make Sense?
Incorporation is Beneficial When
- Personal income consistently exceeds $150,000-$200,000
- You can leave significant funds inside the corporation (not spending everything)
- You want to build an investment portfolio with tax-deferred dollars
- You have a spouse or family members who can legitimately participate
- You plan to practise for at least 5-10 more years to justify setup costs
Incorporation May Not Be Worth It When
- Income is below $150,000 or you spend most of what you earn
- You are nearing retirement with only a few years of practice remaining
- Your province does not allow professional incorporation for physicians
- You are employed (salaried) with no self-employment or billing income
- Annual compliance costs ($1,500-$3,000) would outweigh the tax savings
The Bottom Line
For most Canadian physicians earning above $200,000, incorporation through a professional corporation is one of the most effective tax planning strategies available. The key is timing it right, structuring it properly from the start, and coordinating it with your overall financial plan including insurance, investments, and estate planning. Work with professionals who specialize in physician finances to ensure you maximize every available benefit.
Official Canadian Resources
Access authoritative Canadian resources for physician incorporation and professional corporation requirements.
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