Winding up a professional corporation in Ontario requires more than standard probate. Executors must secure confidential client files, notify regulatory bodies like the CPSO or LSO, and file terminal corporate tax returns with the CRA before distributing any assets.
When a physician, lawyer, or accountant passes away, their estate administration takes on a unique layer of complexity. If the deceased operated a Medical Professional Corporation (MPC) or a legal practice in cities like Toronto, Ottawa, or London, the executor steps into a highly regulated environment. A professional corporation does not simply disappear when its primary shareholder dies. Instead, the corporation lives on as a separate legal entity, complete with ongoing lease agreements, employee payrolls, and professional liability obligations.
As of May 2026, the rules governing professional corporations in Ontario remain incredibly strict. Under provincial law, only a licensed member of the specific profession can hold voting shares in a professional corporation. When the sole practitioner dies, the executor (who is usually not a doctor or lawyer) is generally granted a temporary grace period by the governing college to wind up the practice, sell the assets, and dissolve the corporation. If you find yourself in this position, hiring a specialized corporate and estate law firm is highly recommended to avoid personal liability.
Step-by-Step Process in Ontario
Whether the practice was located in Mississauga or Hamilton, winding up a professional corporation involves coordinating with provincial regulators, the Superior Court of Justice, and the Canada Revenue Agency. Here are the essential steps most executors must follow.
Step 1: Notify the Professional College and Secure the Practice
🔒 Your immediate priority is to secure the physical office and notify the relevant regulatory body. For doctors, this is the College of Physicians and Surgeons of Ontario (CPSO); for lawyers, it is the Law Society of Ontario (LSO). You must inform them of the death and provide a copy of the death certificate. At this stage, you must also secure all confidential client or patient records, ensuring that staff do not improperly access or discard sensitive information.
Step 2: Manage Active Patients or Clients
A deceased professional cannot leave their patients or clients stranded. For a law practice, the LSO may appoint a trustee to take over active client files. For a medical practice, the executor must work with the remaining clinic staff or a records management company to notify patients and safely transfer their health records. In Ontario, medical records must generally be retained for at least 10 years, meaning you cannot simply shred them.
Step 3: Apply for Probate (Certificate of Appointment)
To legally deal with the shares of the professional corporation, the executor must apply to the Superior Court of Justice for a Certificate of Appointment of Estate Trustee. Unless the deceased had a specialized “Secondary Will” that specifically exempted the corporate shares from probate, you will need to pay the Estate Administration Tax (roughly 1.5% on the value of the shares) to gain legal authority over the business.
Step 4: Deal with Employees and Corporate Debts
💵 The corporation still has financial obligations. You must continue to pay the clinic staff, settle outstanding utility bills, and manage the commercial lease. If you are shutting down the practice entirely, you must issue formal termination notices to employees and pay any required severance under the Employment Standards Act. All corporate creditors must be paid before any money can be moved to the estate.
Step 5: Liquidate Assets and File Corporate Taxes
You must hire a corporate accountant to value the medical equipment, office furniture, and accounts receivable. Once the assets are sold, the accountant will file the final corporate tax returns with the Canada Revenue Agency (CRA). You must request a formal Corporate Tax Clearance Certificate from the CRA, which proves the corporation owes no further taxes.
Step 6: Dissolve the Corporation
Once all debts are paid, patient records are transferred, and the CRA clearance is obtained, the remaining funds can be paid out to the estate as dividends. Finally, your law firm will file Articles of Dissolution with the Ontario Ministry of Public and Business Service Delivery to formally close the professional corporation.
How Much Does it Cost in Ontario?
Administering and winding up a professional practice involves specialized professional fees. The costs are paid out of the corporation or the estate, not from the executor’s personal pocket.
- Corporate Accountant Fees: Preparing terminal tax returns and valuing the business typically costs between $3,000 and $7,000+ CAD.
- Legal Fees: Hiring an estate and corporate lawyer ranges from $300 to $600+ CAD per hour, depending on the complexity of the asset sale.
- Medical Records Storage: Contracting a secure, PIPEDA-compliant records management company to store patient files for 10 years can cost $2,000 to $5,000 CAD.
- Estate Administration Tax: Approximately 1.5% of the total value of the corporate shares, assuming no Secondary Will was in place to bypass this tax.
How Long Does the Process Take?
Winding up a professional corporation is not a fast process. While securing the office and notifying patients happens in the first 30 days, liquidating the assets and dealing with employee severance can take 6 months. The longest delay is usually the CRA. Obtaining a Corporate Tax Clearance Certificate in Canada currently takes anywhere from 6 to 12 months, pushing the total timeline for dissolving the corporation to 1.5 to 2.5 years.
Frequently Asked Questions (FAQ)
Can I run the medical practice if I am not a doctor?
No. Under Ontario law, a non-physician cannot practice medicine or hold voting shares in a Medical Professional Corporation indefinitely. You have a temporary grace period solely to sell or wind down the business.
Who owns the medical records after a doctor dies?
The physical records belong to the estate, but the information belongs to the patients. The executor has a legal duty to safeguard these files and transfer them to the patients or another physician upon request.
Does the corporation die with the owner?
No. A corporation is a separate legal entity. It continues to exist, accumulate tax liabilities, and face lawsuits until it is legally dissolved through the filing of Articles of Dissolution.
What happens to the commercial lease?
The corporation remains bound by the terms of the commercial lease. The executor must review the lease agreement to see if there is a death clause or negotiate a buyout with the landlord to surrender the space.
Can I pay myself an executor fee for doing this?
Yes. In Ontario, an executor is generally entitled to claim executor compensation (often roughly 5% of the estate value) for the significant labour involved in managing and winding up complex corporate assets.
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