Where your business wealth should sit
Most incorporated professionals I speak with have the investment side well in hand. Two of them can hold the same portfolio, earn the same return, and still end up in very different positions when they retire. The difference is not what they own. It is where it is held.
For business owners, wealth generally sits in three places: the corporation, your personal registered accounts, and a registered pension plan. Each is taxed differently, each has a limit on how much it can hold, and the balance between them is a decision you can revisit every year.
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The corporation, and what the deferral is worth
Active business income taxed inside a corporation at the small business rate leaves considerably more capital available to invest than the same income drawn as salary and taxed personally. That gap is a deferral, not a savings. Personal tax is still payable when the money comes out as dividends. What the deferral buys is time, and more capital working during that time.
Protecting that deferral is what the rest of these decisions are about.
The $50,000 threshold
When a corporation invests its retained earnings, the income those investments generate can reduce access to the small business deduction. The federal business limit falls by $5 for every $1 of adjusted aggregate investment income above $50,000 in the prior year and reaches nil at $150,000.
The threshold is shared among associated corporations, which catches owners holding shares through a family trust more often than they expect.
Two points worth clarifying
First, this reduction is separate from the refundable dividend tax on hand, or RDTOH. RDTOH is a refund mechanism on corporate investment income, not the cause of the reduction. The two are easy to confuse and often are.
Second, Ontario has not paralleled the federal measure, so an Ontario corporation may lose the federal small business deduction while keeping the provincial one. That is not automatically good news. The provincial rate helps, but the reduced federal deferral leaves less capital inside the corporation to compound, and the net result depends on how long you intend to leave earnings there. Ontario’s small business rate also fell from 3.2% to 2.2% on July 1, 2026, lowering the combined rate on the first $500,000 of active business income. Figures here are current as of publication and should be confirmed for your taxation year.
Personal registered room
Money drawn out as salary creates RRSP room. That room accrues at 18% of the prior year’s earned income up to an annual dollar limit, so setting 2026 salary at about $196,700 generates the maximum $35,390 of RRSP room for 2027. Dividends generate no RRSP room at all, which is one of the quieter costs of a dividend-only compensation strategy.
Drawing enough to fully fund personal RRSP and TFSA room does two things at once. It moves capital into a sheltered account, and it reduces the corporate investment pool that drives the $50,000 test.
Adding a pension to the mix
There is a third option that many owners have never had modelled for them. An individual pension plan is a registered defined benefit plan, sponsored by your corporation, for an owner drawing T4 income. Contributions, top-ups and administration costs are deductible to the corporation, and because capital moves out of the corporation and into the plan, an IPP can reduce the investment income counting toward the passive income threshold.
Contribution capacity scales with age rather than sitting at a flat limit. The advantage over an RRSP begins around age 38 and, by 65, capacity can be roughly 67% higher.
There are trade-offs to weigh. An IPP requires T4 income, so dividend-only compensation generates no room. It carries actuarial and administrative costs, and assets are generally locked in for retirement. It suits owners with steady corporate cash flow and a long enough time horizon to justify the setup.
Moving income to a lower bracket
A prescribed rate loan lets a higher-income spouse lend capital to a lower-income spouse, or to a family trust, so investment income is taxed in the lower bracket rather than attributed back. The rate is set quarterly and is 3% for the third quarter of 2026.
The requirements are strict. Interest must be charged at the rate in effect when the loan was made and paid within 30 days of year-end. Miss the deadline once, and the income is attributed back to the lender for that year and every year after.
A structural decision, reviewed annually
In my own practice, I treat this the way I treat any other structural decision: something to be reviewed each year, not settled once. The right balance shifts as your corporate cash flow, your age and your exit timeline change.
Tax planning is not a one-time exercise. It requires ongoing coordination with your investment advisor and your accountant, who should assess your specific situation before anything changes. My role is to keep the investment side of those decisions coordinated with the rest of your plan.
What you own is an investment decision. Where it is held is a structural one. Both deserve the same attention.
Book a complimentary corporate structure review
If you would like to review where your investments are held and whether the structure still fits your plan, I invite you to book a complimentary consultation today.
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If you are a client, thank you for taking the time to read this and I look forward to our next conversation. Please feel free to share this with your friends and family who may be in need of another viewpoint.
Sources
- Ontario Securities Commission. "National Instrument 55-104 Insider Reporting Requirements and Exemptions." OSC, 2026. https://www.osc.ca/en/securities-law/instruments-rules-policies/5/55-104
- Canadian Investment Regulatory Organization. "Know Your Client and Suitability Requirements." CIRO, 2026. https://www.ciro.ca
- Morningstar. "The More Investors Traded, the Less Their Average Dollar Made." Morningstar, 2025. https://www.morningstar.com/financial-advisors/volatility-bedevils-fund-investors
- RBC Global Asset Management. "The Cost of Trying to Time the Market." RBC GAM, 2023. https://www.rbcgam.com/en/ca/article/the-cost-of-trying-to-time-the-market/detail
- The Associated Press. "Global Stocks Soar and Oil Prices Drop as U.S., Iran Reach Tentative Deal to End War." CBC News, 2026. https://www.cbc.ca/news/business/stock-oil-markets-june-15-9.7235409
- FP Canada. "Financial Planning Research." FP Canada, 2026. https://www.fpcanada.ca/financial-planning-research
- McBride, Steve. The Retirement Blueprint: Building Income That Lasts a Lifetime. McBride Wealth Management / Ventum Financial Corp., 2025.
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