Introduction

Disability planning tends to be treated as an insurance question — and it is. But for an incorporated physician, the financial and tax consequences of a long-term disability are more complex than for a salaried employee. The corporation continues to exist. Its overhead obligations may continue. The physician's personal income source shifts from salary or dividends to insurance benefits — and those benefits are taxed differently depending on how the policy was structured.

Scenario: Dr. Chen, 44, Incorporated Physician, Becomes Unable to Practise

Dr. Chen is a family physician in Oakville. She has operated through a professional corporation for nine years, drawing a combination of salary and dividends. Her MPC has approximately $900,000 in retained earnings invested in a balanced portfolio. She is diagnosed with a debilitating neurological condition and is unable to practise medicine for at least two years, potentially permanently.

What Happens to the MPC

The corporation does not cease to exist. It continues to file T2 returns, and it continues to earn passive income on its retained earnings. Dr. Chen continues to be the sole shareholder and director.

If Dr. Chen was drawing salary from the corporation, that salary stops — the corporation is no longer receiving OHIP billings to fund it. The corporation's income is now entirely passive: investment income on retained earnings.

The passive income continues to be taxed at the high corporate passive rate (approximately 50.17% combined in Ontario), with RDTOH accumulating as the tax is paid. The corporation can continue to pay Dr. Chen dividends from retained earnings — subject to the same personal tax treatment as before.

Disability Insurance Proceeds: Taxable or Not?

The taxability of disability insurance benefits depends on who paid the premiums.

Corporation-paid premiums (most common for incorporated physicians): Where the MPC paid the disability insurance premiums and deducted them as a business expense, the benefits received are taxable income to the recipient. If benefits are paid to the corporation, they are corporate income. If paid directly to Dr. Chen personally, they are personal income.

Personally paid premiums (no corporate deduction): Where Dr. Chen paid the disability premiums personally, without deducting them through the corporation, the benefits received are generally not taxable. This is the tax-free benefit structure.

The choice between corporation-paid and personally-paid premiums is a planning decision that affects the tax character of the benefit when it is needed most. Many incorporated physicians have corporation-paid disability policies — which is generally the wrong structure, as it converts a tax-free benefit into taxable income at exactly the wrong time.

What Happens to Salary and RRSP Room

If disability benefits replace Dr. Chen's salary, they do not generate RRSP contribution room — disability benefits are not "earned income" for RRSP purposes. In a prolonged disability, RRSP room stops accumulating (unless Dr. Chen continues to draw some salary from the corporation from its retained earnings).

The Corporate Overhead Problem

If Dr. Chen's practice had ongoing overhead — clinic rent, administrative staff, equipment leases — those obligations continue during the disability. Disability overhead insurance (a separate product from personal disability insurance) is designed to cover these costs during a practitioner's absence. Overhead insurance premiums paid by the corporation are deductible; the benefits received are taxable corporate income.

Without overhead coverage, Dr. Chen's retained earnings fund the ongoing overhead — depleting the accumulated wealth that was intended for retirement.

The Buy-Sell Trigger

If Dr. Chen had a business partner — a co-shareholder of the MPC or a co-owner of the clinic — the disability may trigger the disability buy-sell provision in the shareholders agreement (if one exists). The disability buyout, if properly funded with disability buyout insurance, allows the departing partner's interest to be purchased without depleting operating cash.

What Dr. Chen Should Do Next

Contact her CPA to review the corporation's cash flow position and model income from the corporate retained earnings.

Review disability insurance policies — confirm the benefit amount, the taxability, and the waiting period.

Consider whether a reduced salary from the corporation is worth maintaining to continue generating RRSP room.

Review the overhead position and whether the clinic arrangement can be wound down or reduced.

Ensure T2 filings continue to be made — the corporation is still active and its filing obligations persist.

When to Speak With a CPA

The time to structure disability insurance correctly — through a personally paid policy rather than a corporation-paid one — is before disability occurs, not during. If that conversation has not happened, a CPA review of the current policy structure and the corporation's income position during disability is the next best step.

Rotaru CPA works with incorporated physicians on disability planning and corporate income management. Book a consultation to review your disability protection structure.