Regulated professionals in Ontario face a unique situation: they can't just incorporate as a regular business corporation. Most professional regulators impose restrictions on who can own shares, what the corporation can be named, and what activities it can carry on. The tax benefits, however, are substantial — and the rules are manageable once you understand them.
Why Incorporate as a Professional?
The primary benefit is the same as any CCPC: income retained in the corporation is taxed at 9–12% (the small business deduction rate) instead of your personal marginal rate of up to 53.5% in Ontario. For a professional earning $200,000 who can retain $100,000 inside the corporation, the annual tax deferral is approximately $30,000–$40,000.
Secondary benefits include liability structuring, potential income splitting with family members (subject to TOSI rules), and building a tax-sheltered investment portfolio inside the corporation over a career.
Realtors — Personal Real Estate Corporation (PREC)
Regulator: RECO (Real Estate Council of Ontario)
Key Rules
- Ontario realtors can incorporate as a Personal Real Estate Corporation under the Trust in Real Estate Services Act (TRESA).
- Commission income flows through the PREC and is taxed at the 9–12% CCPC corporate rate instead of personal rates up to 53.5%.
- The PREC must be wholly owned (directly or indirectly) by the registrant realtor.
- The corporation can only carry on the business of trading in real estate through the registrant.
- You still need to operate through a brokerage — the PREC is the entity that receives your commission.
Tax Benefit Snapshot
A realtor earning $200K in commissions and retaining $100K in the PREC saves ~$30,000+ annually in deferred personal tax.
How We Help
We handle PREC incorporation with proper share structure, RECO-compliant articles, and CRA registration.
Physicians & Surgeons
Regulator: CPSO (College of Physicians and Surgeons of Ontario)
Key Rules
- Ontario physicians can incorporate under Ontario Regulation 39/02 of the Business Corporations Act.
- At least one share class must be voting shares held by the physician.
- The corporation name must include the physician's surname.
- Other regulated healthcare professionals (and their spouses, children, parents) can hold non-voting shares for income splitting.
- Malpractice insurance (CMPA) must be maintained personally — the corporation doesn't change CMPA obligations.
Tax Benefit Snapshot
Physicians often retain $200K–$400K annually inside their PC, generating tax deferral of $60K–$130K per year vs. personal rates.
How We Help
We prepare physician PC articles meeting CPSO requirements, including compliant naming and share structure for potential family income splitting.
Dentists
Regulator: RCDSO (Royal College of Dental Surgeons of Ontario)
Key Rules
- Dentists can incorporate a Professional Corporation under the Regulated Health Professions Act.
- At least 50% of issued shares with voting rights must be held by dentists.
- The corporation name must include the dentist's surname.
- Dental hygienists and registered dental technicians are also eligible for their own professional corporations.
- Income splitting with family members through non-voting shares is possible within RCDSO rules.
Tax Benefit Snapshot
Similar to physicians — dental professionals can retain significant income at the CCPC 11% rate vs. 53%+ personally.
How We Help
RCDSO-compliant articles of incorporation with proper voting share structure.
Lawyers & Paralegals
Regulator: Law Society of Ontario (LSO)
Key Rules
- Lawyers can practice through a Professional Corporation under the Law Society Act.
- All directors and shareholders holding voting shares must be licensees in good standing.
- Non-licensee family members can hold non-voting shares.
- The corporation is not a limited liability entity for personal liability arising from the lawyer's professional work — malpractice liability flows through.
- The tax benefit (deferral at corporate rates) is still significant, particularly for high-income litigators and partners.
Tax Benefit Snapshot
Significant annual deferral for lawyers earning $250K+, especially given Ontario's high personal tax rates above $150K.
How We Help
LSO-compliant professional corporation with Articles drafted to meet Law Society requirements.
Applied Behaviour Analysis (ABA) / BCBAs
Regulator: CRPO (College of Registered Psychotherapists) — varies by designation
Key Rules
- BCBAs and RBAs providing ABA services can incorporate in Ontario.
- The regulatory structure for ABA in Canada is evolving — designation and regulator depend on specific credentials.
- Most ABA service providers incorporate as a standard business corporation (not a regulated professional corporation) since ABA is not yet governed by a single regulated profession college in Ontario.
- Government-funded ABA programs (OAP) allow incorporated providers — check current OAP eligibility requirements.
- Tax treatment is identical to any CCPC — small business deduction applies on the first $500K of active income.
Tax Benefit Snapshot
ABA service providers earning $100K+ in a fiscal year benefit substantially from CCPC rates vs. personal rates.
How We Help
We handle ABA business incorporations and can advise on OAP-compliant corporate structures.
Physiotherapists & Healthcare Practitioners
Regulator: CPO (College of Physiotherapists of Ontario)
Key Rules
- Physiotherapists can incorporate a Professional Corporation under the Regulated Health Professions Act (RHPA).
- At least 50% of voting shares must be held by a physiotherapist member in good standing.
- The PC name must include the member's surname.
- Chiropractors, optometrists, pharmacists, nurses, and other RHPA-regulated professions have similar PC rules under their respective colleges.
- Non-voting shares can be held by spouses, parents, or adult children for income-splitting purposes (subject to TOSI rules).
Tax Benefit Snapshot
Healthcare practitioners often retain $80K–$200K annually inside their PC, generating substantial annual tax savings.
How We Help
Professional corporation articles meeting RHPA and CPO requirements, with income-splitting share structure where applicable.
Income Splitting and TOSI — The Key Warning
Many professional corporations include non-voting shares for spouses, adult children, or parents, with the goal of paying dividends to family members in lower tax brackets. The Tax on Split Income (TOSI) rules introduced in 2018 significantly limited this strategy for most professionals.
TOSI applies when dividends are paid to a related individual who is not meaningfully involved in the business. The dividend is then taxed at the top marginal rate in the recipient's hands — eliminating the income-splitting benefit. There are exceptions for spouses who are 65+, family members who contribute substantial labour, and others. This is an area where professional CPA advice is non-negotiable.
Related Reading
- → Incorporation Service ($299 + gov fees) — We handle all regulated profession PCs
- → Sole Proprietor vs Corporation Tax Math — See when the numbers work
- → Federal vs Ontario Incorporation — Which to choose
Incorporate Your Professional Corporation
We're experienced with regulated profession PC requirements across Ontario. Book a free consultation to discuss your specific regulatory requirements, share structure, and tax strategy.