Should I incorporate as a doctor in Canada, and when?
By Reynolds Edokpayi, Zenith Advisory Inc., Saskatoon · Updated October 2026 · 4 min read
The one condition
An MPC saves tax by deferring it on income you don't need yet. A physician earning $350,000 and spending $150,000 can leave $200,000 in the corporation taxed at the small business rate, and invest roughly 40 cents more of each dollar than if it were paid out personally. A physician earning $200,000 and spending $200,000 has nothing to leave behind and gains little.
What it costs
Setup through a lawyer, annual corporate filings, a separate tax return, and bookkeeping. Typically a few thousand dollars a year all in. It's worth it once you're deferring a meaningful amount.
Other things it does
- Lets you choose salary, dividends or a mix (which? →)
- Allows an Individual Pension Plan later
- Allows corporately owned insurance and disability coverage with tax advantages
- Creates estate planning options that don't exist for a sole proprietor
What it doesn't do
It doesn't protect you from malpractice liability; that's what your professional coverage is for. And it doesn't eliminate tax, only defers it, which is why the withdrawal plan matters as much as the setup.
For internationally trained physicians
A later start in Canada makes the deferral more valuable, not less: you have fewer years to build retirement savings, so every dollar compounding at the corporate rate instead of the personal one matters. Province-specific rules on MPC ownership and naming apply; our physician division handles those.
Next step
This is the home territory of ZAI Wealth Management, our physician division. Their site has a tax savings calculator, provincial MPC guides and a free strategy call: zaiwealth.ca.
Want this worked out for your numbers? Our physician division, ZAI Wealth, will review your corporation and show you where the tax savings are.