Does the passive income rule apply in every province?

The federal rule applies everywhere. Most provinces mirror it for the provincial small business rate; Ontario and New Brunswick currently do not.

Does unrealised growth count as passive income?

No. Only realised income (interest, dividends, rent, and taxable capital gains when you sell) counts. That's why portfolio design matters.

What is the $50,000 passive income rule and why does my accountant keep mentioning it?

By Reynolds Edokpayi, Zenith Advisory Inc., Saskatoon · Updated October 2026 · 5 min read

Short answer: Once passive investment income inside your corporation (interest, dividends, rent, taxable capital gains) exceeds $50,000 in a year, your small business deduction limit for the next year shrinks by $5 for every $1 over, disappearing entirely at $150,000. Then your active business income is taxed at the general corporate rate (roughly 23 to 30%) instead of the small business rate (roughly 9 to 12%). It's the main thing to plan around when investing inside a corporation.

Why the rule exists

The small business rate is meant to help businesses reinvest and grow. The government decided that owners using it mainly to build a personal investment portfolio inside the company should lose some of the advantage once that portfolio gets large. Hence the rule.

How the math works

Your federal small business limit is $500,000 of active income per year. For every $1 of passive income over $50,000, that limit drops by $5.

Passive income	Small business limit next year
$50,000 or less	$500,000 (full)
$75,000	$375,000
$100,000	$250,000
$150,000 or more	$0

Most provinces follow the federal rule; Ontario and New Brunswick currently don't apply the grind to their provincial portion.

What counts as passive income

Interest, dividends from investments, rental income, and the taxable half of capital gains. What doesn't count: your active business or professional income, and growth you haven't realised yet.

How much portfolio triggers it

At a 4% yield, roughly $1.25 million of investments inside the corporation produces $50,000 of passive income. Many professionals reach that within 10 to 15 years of leaving surplus in the company.

Ways to plan around it

Favour growth over income in the corporate portfolio, so gains are deferred rather than realised yearly
Realise gains deliberately in years when it matters less
Pay yourself enough to fill your RRSP and TFSA, moving money out of the corporation into accounts where growth isn't counted
Set up an Individual Pension Plan, which moves large deductible amounts out of the corporation
Corporately owned permanent insurance, whose growth isn't passive income for this rule

Who should be worried

Any incorporated professional or owner with more than about $500,000 invested inside the corporation, or on track to get there. If that's you, this should be a line item in your annual review with your accountant and your advisor.

Want this worked out for your numbers? We'll look at your corporation with your accountant and show you what to do with the money inside it.

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