Two Ontario family physicians each bill $400,000 this year, and both need about $200,000 to run their households. Tax planning for doctors in Canada explains why one of them keeps roughly $80,000 more working for her: she leaves the surplus inside a medical professional corporation, and her colleague takes every dollar personally. Decisions like that one get made early and revisited every year.
The gap compounds. Retained funds grow, shares can be held by family members within strict limits, and the way the corporation is built today decides what a sale, a move to the United States, or retirement will cost later.
Founder Jonathan Soosaipillai, CPA, CGA, built JS CPA Strategic Solutions around corporate tax structuring and cross-border financial strategy for owner-managed businesses. Our team has guided more than 1,200 entrepreneurs and companies and advised on over $85M in enterprise value, and much of that work starts with the same question a physician faces: how should income move between the corporation, the family, and the future?
Below is how doctors are taxed in 2026, how to pay yourself, what income splitting still allows, and the planning moves that matter at each stage of a medical career.
TL;DR — Tax Planning for Doctors in Canada
Here are seven points every Canadian physician should know before the next fiscal year-end.
- In Ontario, active income inside a corporation is taxed at 12.2% on the first $500,000, against a combined personal top rate of about 53.5% in 2026.
- Incorporation pays off when you can leave earnings in the corporation; if you spend everything you bill, the benefit shrinks.
- Salary builds RRSP room and Canada Pension Plan (CPP) credits, dividends keep payroll simple, and most physicians land on a deliberate mix.
- Family shareholding is allowed in an Ontario medicine corporation, yet the tax on split income (TOSI) rules decide whether dividends to a spouse or adult child are taxed at top rates.
- Passive investment income above $50,000 a year starts to erode the small business rate, and $150,000 eliminates it.
- Clinic owners who plan a sale need the share structure ready at least 24 months ahead to use the $1,250,000 lifetime capital gains exemption.
- A move to the United States triggers Canadian departure tax on your shares, so cross-border planning starts before you sign a US contract.
Even well-paid physicians leave funds on the table when the corporation is set up once and never reviewed.
At JS CPA Strategic Solutions, our Growth Mosaic ties corporate tax structuring, owner compensation, and long-range exit planning into one adaptive plan. Book a tax strategy session to see what your current structure is costing you.
How Doctors Are Taxed in Canada
Your tax picture depends on how you practise: as an employee, a sole proprietor, or through a medical professional corporation.
Personal income is taxed on graduated federal and provincial brackets. For 2026, the federal rate reaches 33% on taxable income over $258,482, and Ontario’s top rate is 13.16% over $220,000 according to the 2026 CRA tax brackets. Add the Ontario surtax and the combined top marginal rate in Ontario works out to about 53.5%.
Corporate income is taxed very differently. A Canadian-controlled private corporation pays a 9% federal rate on its first $500,000 of active business income, and Ontario adds 3.2%, for 12.2% in total, per the CRA corporation tax rates. Income above that limit is taxed at 15% federally plus 11.5% in Ontario.
| Income type | How it is taxed | What to watch |
|---|---|---|
| Fee-for-service billings earned personally | Graduated personal rates, up to about 53.5% in Ontario | Instalments and CPP on self-employment earnings |
| Billings earned through a professional corporation | 12.2% in Ontario on the first $500,000 of active income | Personal tax arrives later, when funds are paid out |
| Salary from your corporation | Personal rates, deductible to the corporation | Creates RRSP room and CPP contributions |
| Dividends from your corporation | Personal dividend rates with a dividend tax credit | No RRSP room; TOSI if paid to family |
| Investment income inside the corporation | Higher corporate rates, partly refundable | Above $50,000 it shrinks the small business limit |
Most physician services are exempt from GST/HST when they are health care supplies to a patient. Work done for another purpose, such as some third-party reports or cosmetic procedures, can be taxable, so review your service mix before assuming you never need to register.
When a Medical Professional Corporation Makes Sense
A professional corporation earns its keep through deferral: income taxed at the low corporate rate stays invested until you pay it out.
That is why the decision turns on spending. If your household needs most of what you bill, the funds leave the corporation quickly and you pay personal tax anyway, with extra accounting and legal costs on top.
The Deferral in Numbers
The example below uses 2026 Ontario rates for a physician with $400,000 of net billings who needs $200,000 personally.
| Where the second $200,000 goes | Tax this year | Left to invest |
|---|---|---|
| Retained in the professional corporation at 12.2% | $24,400 | $175,600 |
| Paid out personally on top of $200,000 of other income | About $104,400 | About $95,600 |
| Difference working for you | About $80,000 |
These figures are illustrative. They exclude personal credits, the Ontario Health Premium, and your province’s specific rules, and the deferred tax comes due when the retained funds are eventually paid to you.
Incorporation is a deferral tool. The bigger the gap between what you bill and what you spend, the more it is worth, and the more the investment and exit rules below matter.
What Incorporation Costs You
A medical corporation in Ontario needs a Certificate of Authorization from the College of Physicians and Surgeons of Ontario (CPSO), renewed every year. You also take on a corporate tax return, separate bookkeeping, payroll if you pay salary, and annual legal maintenance.
For many physicians, those costs are small next to the deferral. For a new graduate carrying debt and spending every dollar, they can outweigh it for a few years.
4 Ways to Pay Yourself From Your Corporation
How you take funds out of the corporation shapes your personal tax, your retirement room, and your CPP credits.
1. Salary
Salary is deductible to the corporation and taxed to you as employment income. Salary creates RRSP room at 18% of the prior year’s earned income, up to $33,810 for 2026 under the CRA registered plan limits, and it brings CPP contributions up to the 2026 maximum pensionable earnings of $74,600 and the additional ceiling of $85,000.
2. Dividends
Dividends are paid from after-tax corporate earnings and receive a dividend tax credit on your return. They need no payroll account, create no CPP cost, and build no RRSP room, which matters for physicians without a hospital pension. Our guide to how dividends are taxed walks through eligible and non-eligible dividends in detail.
3. A Blended Mix
Many incorporated doctors pay enough salary to reach the RRSP maximum and take the balance as dividends. Earning about $187,800 in 2025 created the full $33,810 of RRSP room for 2026, so the salary target is a concrete number you can plan around each year.
4. Retained Earnings
Anything you do not need stays in the corporation at the small business rate. Retained earnings are the engine of the deferral, and they also create the passive income and exit questions covered below.
| Feature | Salary | Dividends |
|---|---|---|
| Deductible to the corporation | Yes | No |
| Creates RRSP room | Yes | No |
| CPP contributions | Yes, employer and employee portions | None |
| Payroll remittances required | Yes | No |
| Fits income splitting with family | Only for real work at a reasonable wage | Subject to TOSI |
Every engagement starts with a review of the prior three years of returns, so the mix you set this year corrects anything missed in earlier years. For physicians with income from several sources, our breakdown of tax strategies for high-income earners adds the personal-side moves.
What Income Splitting Still Allows Under TOSI
Income splitting through a corporation still works, but only inside the tax on split income (TOSI) rules introduced in 2018.
TOSI taxes split income, such as private corporation dividends paid to a family member, at the top personal rate unless an exclusion applies. The exclusions are narrower for professional corporations than for most businesses.
Family Shareholders in an Ontario Medicine Corporation
The CPSO accepts family member shareholders, including spouses, common-law partners, and children, and a trustee can hold non-voting shares for a physician’s minor children. Holding shares and receiving tax-efficient dividends are separate questions, and the second is where TOSI applies.
Reasonable Returns and Real Work
The CRA guidance on split income confirms that a spouse holding non-voting shares in a professional corporation cannot use the excluded shares exception. A dividend can still escape TOSI as a reasonable return for the work, capital, and risk a family member contributes, and someone who works an average of at least 20 hours a week in the practice is treated as actively engaged.
Paying a spouse or adult child a salary for real work, such as running the office or managing billing, remains a sound option when the pay matches what you would pay an unrelated person.
The Spouse Age 65 Exception
Once the physician reaches 65, dividends paid to a spouse from the practice are generally excluded from TOSI. For doctors who keep practising into their late sixties, that birthday can reopen meaningful splitting for the last working years.
Invest Retained Earnings Without Losing the Small Business Rate
Retained earnings need a plan, since investment income inside the corporation can claw back the 12.2% rate on your practice income.
Once the corporation’s adjusted aggregate investment income passes $50,000, its $500,000 small business limit falls by $5 for every $1 over that threshold. At $150,000 of investment income, the limit is gone and practice income is taxed at the general rate.
| Passive investment income | Remaining small business limit |
|---|---|
| $50,000 or less | $500,000 |
| $75,000 | $375,000 |
| $100,000 | $250,000 |
| $150,000 or more | Nil |
Physicians usually manage this by choosing investments that defer gains rather than pay annual income, funding RRSP and TFSA room personally, and considering an individual pension plan where the numbers support it. Our article on corporate tax planning covers the grind and the refundable tax mechanics in more depth.
Track the Practice Expenses CRA Allows
Reasonable expenses incurred to earn professional income are deductible, and good records protect every one of them.
Common categories for physicians include:
- ●Professional dues and licensing: college fees, association memberships, and the annual corporate authorization renewal.
- ●Liability protection: protection fees, net of any provincial reimbursement you receive.
- ●Office and staff: rent, utilities, wages, benefits, and clinic software.
- ●Equipment: medical and office equipment, claimed over time through capital cost allowance.
- ●Continuing education: conferences, courses, and the travel tied to them when they relate to your current practice.
- ●Vehicle: the business-use portion, supported by a mileage log.
Personal expenses run through the corporation are a common audit trigger. Keep receipts and logs that show the professional purpose of each claim.
Good records also make the bigger decisions easier to model. If you want CFO-level forecasting behind your retained earnings, salary targets, and clinic growth, talk with our CFO team about a plan built around your practice.
6 Tax Planning Moves by Career Stage
The right move changes as your income, family, and practice change, so treat the plan as a sequence.
Residency and Fellowship
Your income is lowest and your future rate is highest. Contributions to a Tax-Free Savings Account (TFSA), up to $7,000 for 2026, often beat RRSP deductions now, which are worth more once you are in a higher bracket.
First Years in Practice
Model incorporation once billings exceed what your household spends. Set up bookkeeping, a business account, and instalment planning from the first month.
Peak Earning Years
Set the salary and dividend mix annually, review family shareholding against TOSI, and monitor passive income against the $50,000 threshold. Founder Jonathan Soosaipillai, CPA, CGA, has structured tax plans spanning corporate reorganization, owner compensation, retirement income, and intergenerational wealth transfer, and this is the stage where those pieces start to interact.
Clinic Ownership
Owning a multi-physician clinic, a diagnostic facility, or a property used by the practice adds payroll, leases, and real business value. Structure ownership so the operating business and any investment assets can be separated later without a tax cost.
Practice Sale or Wind-Down
Begin at least two years before a sale. The 24-month ownership and asset tests for the lifetime capital gains exemption make a late start expensive.
Retirement and Estate
Plan how retained earnings will fund retirement, when the spouse age 65 rule opens up splitting, and how shares pass to the next generation.
Plan the Exit Before You Sell Your Practice
A practice sale is the one moment when years of retained earnings and structure are tested at once.
The lifetime capital gains exemption (LCGE) can shelter up to $1,250,000 of gains on qualified small business corporation (QSBC) shares, the amount set in the federal LCGE announcement effective June 25, 2024. To qualify, at least 90% of the corporation’s assets by value must be used in an active business in Canada at the time of sale, and the shares must pass a 24-month ownership and asset test. Confirm the current limit before you plan around it, since it is subject to indexation.
Large investment portfolios inside the corporation are the usual obstacle. Moving those assets out, often called purification, takes time and has to be planned well before a buyer appears.
A solo practice with little transferable goodwill may have limited sale value, while a clinic with staff, equipment, contracts, and an established patient base can carry real enterprise value. Our guide to the lifetime capital gains exemption explains the eligibility tests in detail, and a large one-time gain can also expose you to the alternative minimum tax in Canada, which runs as a parallel calculation.
We have seen how much structure decides the outcome. For one Canadian IT firm with US operations, correcting years of unfiled returns and restructuring its share classes opened access to $3M in tax-free funds through the LCGE. Every business is different, but the lesson carries to any clinic owner: the exemption rewards structure built in advance.
Cross-Border Planning for Doctors Moving to or From the US
Physicians who practise or relocate across the border face two tax systems with different rules.
When you leave Canada, the CRA treats you as having sold certain property, including the shares of your professional corporation, at fair market value. That departure tax can apply to retained earnings and practice value you never actually sold.
US citizens practising in Canada have the reverse problem. The IRS taxes US citizens on worldwide income wherever they live, so dividends from a Canadian medical corporation, TFSA growth, and Canadian corporate structures all need review from the US side as well.
5 Common Tax Mistakes Doctors Make
Most costly mistakes come from setting a structure once and leaving it alone.
Forming a corporation before billings exceed spending adds cost without much deferral.
Skipping salary can leave RRSP room and CPP credits behind.
Dividends to family members can be taxed at the top rate.
Investment income above $50,000 raises the tax on your practice income.
Assets that fail the 24-month test can cost you the exemption.
Frequently Asked Questions (FAQs)
Below are answers to questions physicians often ask when they start planning.
Build a Tax Plan That Grows With Your Practice
Tax planning for doctors in Canada works best as a yearly habit, built around a structure that suits your current stage and your next one.
The biggest gains come from decisions that compound: what you leave in the corporation, how you pay yourself, who owns the shares, and how early you prepare for a sale or a move.
Remember, the structure you set up this year decides what you keep when you sell, move, or retire.
At JS CPA Strategic Solutions, we bring corporate tax structuring, cross-border planning, and exit readiness together through the Growth Mosaic. Schedule a no-obligation call to review your corporation before your next year-end.