Introduction

An incorporated professional in Ontario has three primary tax-advantaged investment vehicles available: the Tax-Free Savings Account (TFSA), the Registered Retirement Savings Plan (RRSP), and the professional corporation itself. Each has different rules, different tax treatment on contributions and withdrawals, and different strategic purposes.

Most financial planning discussions address TFSA vs. RRSP. For incorporated professionals, the corporation is a third vehicle that is often larger than either — and it interacts with the other two in ways that the simple TFSA vs. RRSP framework does not capture.

The TFSA

Contribution limit: $7,000 per year (2026), with cumulative room since 2009 available. A Canadian resident who has never contributed has approximately $95,000 of cumulative room in 2026.

Tax treatment: Contributions are made with after-tax dollars (no deduction). Growth is tax-free. Withdrawals are tax-free and do not affect income for OAS or GIS purposes.

Funded how: From personal after-tax income. An incorporated professional funds the TFSA from personal salary or dividends already drawn from the corporation — not directly from the corporation.

Best for: Short to medium-term savings where flexibility is needed, or for retirement income where OAS clawback is a concern. The TFSA is the only vehicle where withdrawals are truly neutral for income-tested benefits.

The RRSP

Contribution room: 18% of prior year earned income, up to $32,490 in 2026. Requires employment or self-employment income to generate room — dividends do not qualify.

Tax treatment: Contributions are deductible at the marginal rate in the year of contribution. Growth is tax-deferred. Withdrawals are fully taxable as income.

Funded how: From salary drawn from the corporation. The RRSP deduction offsets the personal tax on that salary — at the margin, the net cost of the RRSP contribution is zero (the salary tax and the RRSP deduction roughly cancel).

Best for: Long-term retirement savings where the deduction is taken at a high marginal rate and withdrawals are expected at a lower rate. The spousal RRSP is still the most accessible income-splitting tool available to incorporated professionals.

The Corporation

Contribution limit: No annual limit. The corporation retains whatever after-tax income is not distributed.

Tax treatment: Active income taxed at the small business rate (approximately 12.2%). Passive income inside the corporation taxed at approximately 50.17% (with RDTOH refunds on distribution). Distributions to shareholders are eligible or non-eligible dividends — taxed at personal dividend rates.

Funded how: By leaving corporate after-tax profits inside the corporation rather than distributing them.

Best for: Long-term accumulation where the professional can leave a significant fraction of income inside the corporation. The compounding advantage of the SBD rate over personal marginal rates is the primary benefit.

How the Three Work Together

The practical hierarchy for most incorporated professionals:

First: Max the TFSA. $7,000 per year of truly tax-free growth with full flexibility. Fund it from personal dividends or salary already drawn. The contribution is small relative to total income but the tax-free withdrawal benefit is permanent.

Second: Fund the RRSP. Generate salary sufficient to create meaningful RRSP room (typically $100,000–$180,000 of salary). Contribute immediately. The deduction offsets the marginal tax on the salary, and the RRSP compounds tax-free. Prioritise spousal RRSP where applicable.

Third: Leave the balance in the corporation. After funding the TFSA and RRSP, the corporation's remaining after-tax income is invested inside the corporate portfolio. This grows at the SBD after-tax rate, with passive income risks managed through the holdco structure as the portfolio grows.

The Sequence Matters

An incorporated professional who invests primarily inside the corporation and never contributes to the TFSA or RRSP is leaving personal tax-advantaged space unused. Conversely, one who draws a large salary to maximise RRSP contributions — beyond what their personal expenses require — is paying significant personal tax on the excess salary.

The balance between the three vehicles should be reviewed annually, as the TFSA room accumulates, the RRSP approaches the annual limit, and the corporate investment portfolio grows toward the passive income threshold.

When to Speak With a CPA

The optimal allocation across TFSA, RRSP, and corporate investments depends on income level, personal spending requirements, RRSP room available, and corporate passive income position. A CPA can model the three together rather than treating them as independent decisions.

Rotaru CPA models TFSA, RRSP, and corporate investment allocation as part of annual compensation planning. Book a consultation to build your integrated investment strategy.