If you are incorporated in Ontario, your provincial tax bill just got smaller — and your return just got one schedule longer.
In the 2026 Ontario Budget, the province cut its small business rate on the first $500,000 of active business income from 3.2% to 2.2% effective July 1, 2026, while the Canada Revenue Agency introduced Schedule 23A to capture provincial allocation more explicitly for corporations that operate in more than one province. For a Canadian-controlled private corporation (CCPC) that claims the small business deduction (SBD), the combined federal-provincial rate on that first slice now sits near 9% in the second half of 2026, down from roughly 10%. That is real money for an owner-manager — and a new place for the return to fail if the bookkeeping doesn't support the allocation.
What Changed on July 1
Ontario rate: 3.2% → 2.2% on qualifying active business income eligible for the SBD, up to the $500,000 federal business limit. The reduction applies to taxation years that straddle July 1, prorated by days before and after.
Federal rate: The federal SBD rate remains 9% (for CCPCs with taxable capital under $15M), so the combined rate post-July is 11.2% annualized for a full year, blended for a straddle year.
CRA Schedule 23A: A new schedule for provincial income allocation, replacing the informal allocation previously embedded in the T2. If you have a permanent establishment in more than one province, Schedule 23A is where you show the allocation factors and the income assigned to each.
Who Qualifies for the Lower Rate
Not every incorporated owner gets the rate — the SBD has conditions, and Ontario follows them:
- CCPC status: The corporation must be a CCPC throughout the year.
- Active business income: Not passive investment income, not specified investment business without more than five full-time employees, and not personal services business without the employee test.
- Taxable capital and associated group: The $500,000 business limit is shared among associated corporations and shrinks as taxable capital rises from $10M to $15M. If you are associated, you allocate.
- Permanent establishment in Ontario: You need a permanent establishment in Ontario to access the Ontario rate. A corporation with no Ontario presence cannot claim it.
How the Proration Works
If your taxation year is calendar 2026 (January 1–December 31), the 2.2% rate covers the 184 days from July 1 to December 31. The blended Ontario rate for the year is (181/365 × 3.2%) + (184/365 × 2.2%) ≈ 2.70%, with the federal 9% added. CRA's transitional schedule handles the math, but your instalments should reflect the lower rate in the second half — otherwise you overpay and wait for the refund.
If your year-end is not December 31, count days. A November 30 year-end straddles differently than a June 30 year-end.
Schedule 23A: Why CRA Wants More Detail
Schedule 23A asks for the same provincial allocation logic that has always existed under Part IV of the Regulations, but as a standalone schedule that the system can validate. You report:
- Gross revenue and wages and salaries by permanent establishment
- The allocation factor for each province where you have a permanent establishment
- Active business income allocated to each province
The schedule must foot to the T2's total active business income and to the SBD claim on Schedule 7. A $1,000 rounding difference between Schedule 23A and Schedule 7 is now a system-generated review, not a silent accept.
Bookkeeping That Makes Schedule 23A Foot
The allocation factors are gross revenue and wages and salaries — two numbers that come directly from the ledger:
- Revenue by location: Tag revenue by permanent establishment. A sale booked to "Ontario" because the head office is in Toronto, when the work was performed by staff in Quebec, misstates the factor. Location is where the permanent establishment that earned the revenue operates, not where the invoice was printed.
- Wages by location: Direct payroll to employees of each establishment. Owner-manager salary counts where the person works, not where they live if different.
- Interprovincial management fees: If you charge a management fee from Ontario to an Alberta establishment to shift income, be prepared for transfer-pricing scrutiny and for the fee to affect both sides of the allocation.
Reconcile the allocation schedule to the GIFI: total revenue to Line 8299, total wages to the payroll accounts, and active business income to SBD-eligible income.
Planning Moves to Discuss Now
- Instalments: Adjust second-half instalments for the lower Ontario rate and for any allocation change. Over-instalments are interest-free loans to CRA.
- Year-end vs. July 1: If you control the year-end and have income that would benefit from more days at 2.2%, discuss whether a short year or a year-end change is worthwhile — but weigh the cost of an extra return and the associated group coordination.
- Associated group allocation: If you added a corporation to the group, re-file the associated group agreement (Schedule 23) to allocate the $500,000 limit efficiently before year-end.
- Dividend and salary mix: A lower small business rate changes the integration math between salary and dividends for owner-managers. Rerun the salary/dividend model with the new combined rate and the current personal tax brackets.
Keep Your Finances Organized From Day One
A tax cut you cannot evidence is a reassessment you will pay back. The Ontario reduction rewards the business whose revenue and payroll are already tagged by location and whose active business income is already separated from investment income.
Beancount.io keeps that evidence as plain text: every invoice tagged by establishment, every payroll entry by location, and every allocation schedule generated from the ledger, version-controlled and auditable. Get started for free and make Schedule 23A a report, not a reconstruction.