The CCPC Passive Income Trap Canada 2026 — Section 125(5.1) and How to Keep Your Small Business Deduction
Reviewed by Bader A. Chowdry, CPA, CA, LPA on
The CCPC passive income trap is the federal rule in section 125(5.1) of the Income Tax Act, in force, that cuts a Canadian-controlled private corporation’s $500,000 business limit by $5 for every dollar of adjusted aggregate investment income (AAII) above $50,000 earned by the associated group in the previous year. For an Ontario owner-manager in Mississauga or anywhere in the province, the grind removes the federal small business deduction (SBD), but Ontario’s own lower rate keeps applying.
What the small business deduction is worth in 2026
The SBD is the gap between two federal rates. The Canada Revenue Agency’s corporation tax rates page shows a federal net rate of 15% after the general tax reduction and 9% on income that qualifies for the small business deduction. The difference is 6 percentage points of federal tax on each dollar inside the business limit.
The Act provides, in section 125(2), that a CCPC’s business limit is $500,000, and associated CCPCs share one limit. At the full limit, the federal SBD is worth $30,000 a year (6 percentage points on $500,000). That is the amount the passive income grind can take away from the group.
Ontario layers its own reduction on top. Ontario’s small-business rate is 2.2%, in force from July 1, 2026 under Bill 97, the Plan to Protect Ontario Act (Budget Measures), 2026, which has received Royal Assent as Statutes of Ontario 2026, chapter 2 (Legislative Assembly of Ontario, Bill 97). Before July 1, 2026 the rate was 3.2%; that figure is history now. Ontario’s general rate is 11.5%, per the Ontario corporate income tax page.
Combined, the federal and Ontario small-business rate is 11.2% (9% plus 2.2%) from July 1, 2026, against a combined general rate of 26.5% (15% plus 11.5%). The 12.2% combined rate applied only before July 1, 2026.
How the July 1, 2026 change is prorated
Schedule 15 of Bill 97, which has received Royal Assent, amends section 31(4) of the Taxation Act, 2007 (Ontario) and, as enacted, sets the small business deduction rate at 9.3% for the days of a taxation year after June 30, 2026 and keeps 8.3% for the earlier days, each weighted by the number of days. Against the 11.5% general rate, those deductions produce the 2.2% and the former 3.2% lower rates.
A corporation with a December 31, 2026 year-end has 181 days before July 1 and 184 days after. Its blended Ontario lower rate for 2026 works out to about 2.70%, so its combined small-business rate for that year is about 11.7%. A taxation year that starts on or after July 1, 2026 gets the full 11.2% combined rate.
How section 125(5.1) grinds the business limit
The Act provides the grind as a formula in paragraph 125(5.1)(b) of the Income Tax Act, which is in force. The business limit is reduced by the limit divided by $500,000, multiplied by 5 times the amount by which AAII exceeds $50,000. For a group with the full limit, that is $5 of lost limit for each dollar of AAII above $50,000.
Three details in the wording matter in practice:
- It looks back one year. The AAII counted is for taxation years that ended in the preceding calendar year. A large gain in 2026 reduces the limit for the 2027 taxation year, not 2026.
- It counts the whole associated group. The AAII of every corporation associated with the CCPC at any time in the year is added together.
- It reaches nil at $150,000. The formula takes the full $500,000 away once group AAII reaches $150,000 ($50,000 plus $500,000 divided by $5).
Reference table: federal business limit by prior-year AAII
The table applies the formula to a group with a full $500,000 limit and shows the extra federal tax on the ground portion at 6 percentage points. Because Ontario does not parallel the grind, the Ontario lower rate is unaffected in this table.
| Prior-year group AAII | Reduction in limit | Federal limit left | Extra federal tax |
|---|---|---|---|
| $50,000 or less | $0 | $500,000 | $0 |
| $60,000 | $50,000 | $450,000 | $3,000 |
| $75,000 | $125,000 | $375,000 | $7,500 |
| $100,000 | $250,000 | $250,000 | $15,000 |
| $125,000 | $375,000 | $125,000 | $22,500 |
| $150,000 or more | $500,000 | $0 | $30,000 |
Ontario does not follow the federal grind
Ontario’s corporate income tax page says the province has not adopted the federal passive income reduction. A CCPC that loses the federal SBD to the grind keeps Ontario’s 2.2% lower rate on its first $500,000 of active business income, so the combined rate on the ground portion is about 17.2% (15% plus 2.2%), not the 26.5% general rate. An earlier version of this article said Ontario’s limit falls with the federal one; it does not.
What counts as AAII and what does not
Section 125(7) defines adjusted aggregate investment income by starting from aggregate investment income in section 129(4), the same base used for refundable tax and RDTOH, and then changing three things.
- Active assets are carved out. Taxable capital gains and losses on property that is an active asset of the corporation (broadly, property used principally in an active business carried on primarily in Canada, and certain shares of connected corporations) are left out.
- Only connected-corporation dividends are excluded. Dividends from a corporation connected with the CCPC stay out; portfolio dividends from unconnected corporations count.
- Foreign accrual property income counts in full. AAII is computed as if nothing were deducted under section 91(4).
Everything else that is income from property counts the usual way: interest on GICs and bonds, net rents after capital cost allowance (CCA), portfolio dividends and taxable capital gains on investments. Taxable capital gains enter at the amount actually included in income; there is no gross-up in the AAII definition.
Rental income. Rent is income from a specified investment business unless the corporation employs more than 5 full-time employees in that business throughout the year (section 125(7)). Most owner-managed real estate holding companies do not meet that test, so their net rent is AAII.
The associated corporation trap
The grind is measured across the associated group. A typical case is an operating company (Opco) owned by a holding company (Holdco), with retained profits moved up to the Holdco and invested there.
Dividends paid from a connected Opco to its Holdco are not AAII. But once the Holdco invests that cash in a portfolio, the interest, dividends, rents and gains it earns are AAII, and they are added to the Opco’s side of the group. A second operating company owned by the same shareholders is also likely associated, so all three corporations share one ground-down limit. The Insight Accounting CPA article on associated corporations and the $500,000 business limit covers the association rules in section 256 in more detail.
Planning options to consider
None of these is right for every group; each one has trade-offs that depend on the shareholders, the corporate year-end and the cash the business needs.
1. Extract surplus the group does not need. Salary, bonus or dividends paid out of the corporation shrink the portfolio that produces AAII. A capital dividend paid from the capital dividend account (CDA) is another route with its own election and rules. Salary goes on a T4 slip and dividends on a T5 slip, and the mix still turns on personal rates, CPP and RRSP room.
2. Keep the Holdco connected, and watch what it invests in. Connected-corporation dividends stay out of AAII, so moving cash up is not the problem. The investment income the Holdco then earns is.
3. Time the realisation of investment gains. Because the test looks back to the preceding calendar year, a gain realised in one year affects the next year’s limit. Spreading realisations across years, or matching them with years when active income is below $500,000 anyway, changes which year bears the grind.
4. Review association before restructuring. Splitting a portfolio into several companies does nothing if they are associated under section 256. Any reorganisation also needs a look at section 84.1 and section 55(2).
What an LPA adds: a decision rule and a common failure
The decision rule. Model group AAII each autumn, before the year-end, for every associated corporation together. If the projection is above $50,000, compare the federal tax the grind will cost next year (6 percentage points on the lost limit, capped at $30,000) with the cost of the fix: the personal tax on extracting surplus, or the return given up by changing the asset mix. If active business income is already below the remaining limit, the grind may cost nothing at all.
The failure mode. The most common error is measuring one corporation instead of the group. A Holdco’s T2 can look clean while the associated Opco’s limit has already been cut, because the AAII sits in a different entity. The second error is assuming the Ontario limit falls too and overstating the cost; Ontario’s page says it does not.
Illustrative example (assumptions stated, not a client). A Mississauga Holdco owns all the shares of a manufacturing Opco that earns more than $500,000 of active business income. In its taxation year ending in 2025, the Holdco earns interest of $28,000, portfolio dividends of $9,000, net rent of $31,000 and taxable capital gains of $30,000 on investments. Group AAII is $98,000.
The reduction is ($98,000 minus $50,000) x 5 = $240,000, so the group’s federal limit for 2026 is $260,000. The extra federal tax on the $240,000 ground portion is $14,400 (6 percentage points), while Ontario’s lower rate continues on the first $500,000. If the group had moved $50,000 of that portfolio income out, for example by realising the gains over two years, AAII would have been $48,000 and the reduction nil.
Frequently asked questions
Does the grind apply in the same year the passive income is earned?
No. The formula uses AAII for taxation years that ended in the preceding calendar year, so passive income earned in one year reduces the business limit in the following year.
Does the grind affect Ontario’s small business rate?
No. Ontario has not adopted the federal passive income reduction, so its lower rate still applies to the first $500,000 of active business income.
Can I split the portfolio between several corporations to stay under $50,000 each?
Only if the corporations are not associated. Associated corporations add their AAII together, and association under section 256 can apply even where the shareholdings look separate.
Are capital gains on selling business assets part of AAII?
No. Taxable capital gains on active assets are excluded from AAII. Gains on investment property are included at the amount included in income.
Bader A. Chowdry, CPA, CA, LPA is the principal of Insight Accounting CPA Professional Corporation, 4300 Village Centre Ct, Unit 100, Mississauga, ON L4Z 1S2, and reviews T2 corporate tax planning for owner-managed groups, including holdco and opco structures.
Important — informational only, not advice. Do not use this article to make any decision.
This article is published by Insight Accounting CPA Professional Corporation for general educational purposes only. It is not tax, legal, accounting, financial, or investment advice, and nothing in this article should be relied upon — by anyone, for any purpose — to make a business, tax, financial, accounting, legal, or investment decision.
Tax law, CRA administrative positions, court interpretations, and Ontario provincial rules change frequently, sometimes retroactively, and the content of this article may be incomplete, simplified, out of date, or wrong by the time you read it. The right answer for your specific situation depends on facts this article does not know — your structure, history, jurisdiction, filings, contracts, and goals.
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