What Counts as a 'Reasonable Salary' When You Pay Yourself From an Ontario Corporation?

If you own and run an Ontario corporation, you generally have wide latitude to set your own salary or bonus — but that latitude isn't unlimited. The reasonable salary question comes up whenever the CRA reviews a corporation's deductions and asks whether an amount paid to a shareholder-employee genuinely reflects the value of the work performed.

Getting this wrong doesn't just create paperwork. An amount the CRA considers excessive can be denied as a deduction to the corporation, creating a mismatch where the corporation loses the deduction but the shareholder has already been taxed personally on the full amount received.

Here's what "reasonable" generally means in this context, and how to support your own compensation decisions.

Why "Reasonableness" Matters

A corporation can generally deduct salaries and bonuses paid to employees — including shareholder-employees — as a business expense, but only to the extent the amount is reasonable in the circumstances. If the CRA concludes a payment to a shareholder-employee was excessive relative to the value of services actually provided, it can deny part of the corporation's deduction, even though the shareholder already paid personal tax on the full amount.

This issue tends to surface most often with bonuses paid to owner-managers at year-end, more than with a steady, modest annual salary.

Factors the CRA Weighs

• Comparable compensation. What would an arm's-length employee doing similar work, with similar responsibility, be paid in a similar business? The further a shareholder's pay departs from that benchmark, the more scrutiny it can invite.
• The value and scope of services actually performed. Hours worked, responsibilities held, and the complexity and importance of the role all factor in.
• The corporation's overall profitability. A payment that would strip a modestly profitable corporation of most of its income looks different from the same dollar amount paid out by a highly profitable one.
• Consistency over time. A pattern of salaries or bonuses that tracks the business's performance year over year is easier to defend than an amount that appears arbitrary or that spikes for reasons unrelated to the shareholder's actual work.
• Whether the amount serves a legitimate business purpose, rather than simply shifting income for tax reasons alone.

None of these factors is decisive on its own — the CRA, and the Tax Court of Canada if a dispute goes that far, looks at the whole picture together.

How to Support a Reasonable Salary Decision

• [ ] Document the shareholder-employee's actual role, hours, and responsibilities
• [ ] Compare the proposed compensation to what a similar role would pay at arm's length, where a comparison is available
• [ ] Keep board or director resolutions authorizing salary and bonus amounts, made at the time the decision is made — not after the fact
• [ ] Ensure compensation is reasonably consistent with the corporation's financial performance for the year
• [ ] Apply source deductions correctly and on time
• [ ] Revisit compensation decisions annually rather than assuming last year's approach is automatically still appropriate

What Happens If the CRA Disagrees

If the CRA reassesses and denies part of a salary or bonus deduction as unreasonable, the corporation loses the deduction for that portion — but the shareholder has typically already reported and been taxed on the full amount personally. That mismatch is exactly why documentation and a defensible basis for the amount matter before the payment is made, not after a reassessment arrives.

Frequently asked questions