The Passive Income Grind You Did Not Know You Triggered

You had a good year, left the surplus in the company, and put it somewhere sensible. That interest, those dividends, the gains on the portfolio, all of it counts as adjusted aggregate investment income, and past a threshold it grinds down the amount of active income eligible for the small business rate.

How the Mechanic Works

Once passive investment income in a year exceeds the threshold, the business limit available for the following year is reduced on a sliding scale, and past the upper bound it is gone entirely. The income being taxed at the higher rate is your active business income, which is why the cost surprises people, the penalty does not land where the investment income sits.

Levers That Exist

• Move the passive assets. A holding company does not eliminate the grind by itself if the companies are associated, but structuring matters and is worth modelling properly.
• Corporately owned permanent insurance. Growth inside the policy is not investment income for this purpose. It is a long-horizon tool, not a quick fix, and it should be sized against a real need.
• Change the mix. Deferred-growth instruments generate less annual income than interest-bearing ones. Same dollars, different timing.
• Pay out more. Sometimes the simplest answer: if the cash is not working in the business, moving it to shareholders on a planned basis beats accumulating it inefficiently.
• Realize gains deliberately. You have some control over the year in which gains crystallize. Use it.

What to Do

1. Ask your accountant for your adjusted aggregate investment income figure for the current year, before year end.
2. If it is approaching the threshold, decide whether to defer income into the next year or accept the grind knowingly.
3. If corporate cash keeps accumulating, treat the structure question as urgent rather than theoretical.

General information for Canadian founders, current to 2026. It is not tax advice and does not account for your specific facts. Rates, thresholds and rules change, confirm the current figures before acting.