Ontario Corporate Tax Law: Rates, CCPC, Dividends, and Reorganizations

The Corporate Income Tax Framework

Canadian corporations pay income tax at both the federal level under the Income Tax Act, RSC 1985, c 1 (5th Supp) (ITA) and the provincial level under Ontario's Taxation Act, 2007. The tax base is generally the same for both levels, though there are some Ontario-specific deductions and rates.

Combined Federal-Ontario Corporate Tax Rates (2024)

• Small business income (CCPC, active business, <$500K SBD limit): approximately 12.2% (9% federal SBD rate + 3.2% Ontario small business rate)
• General active business income (above SBD limit or non-CCPC): approximately 26.5% (15% federal general rate + 11.5% Ontario general rate)
• Investment income in a CCPC: approximately 50.17% combined (with a portion refundable through RDTOH when dividends are paid — 38.67% refundable dividend tax on hand on portfolio dividends; 30.67% on other investment income)

The integration principle is the foundation of the Canadian corporate tax system — the goal is that the combined corporate and personal tax on income earned through a corporation should approximate the personal tax rate on the same income earned directly by an individual. Integration is imperfect in practice, creating tax planning opportunities and traps.

Canadian-Controlled Private Corporations (CCPCs)

A CCPC is defined in s. 125(7) of the ITA as a private corporation that is a Canadian corporation and that is not controlled directly or indirectly by one or more non-resident persons, public corporations, or a combination of both. CCPC status confers significant tax benefits:

• Eligibility for the small business deduction (SBD) on active business income
• Access to the capital gains exemption on qualifying small business corporation shares (s. 110.6)
• SR&ED (scientific research and experimental development) investment tax credits at enhanced refundable rates
• The capital dividend account mechanism

Passive Investment Income and the SBD Grind

Since 2019, a CCPC's SBD limit is reduced when the CCPC and its associated corporations earn more than $50,000 of "adjusted aggregate investment income" (AAII) in the prior year. For every dollar of AAII above $50,000, the SBD limit is reduced by $5 — so a CCPC with $150,000 of AAII loses its entire $500,000 SBD limit. This affects professional corporations and private holding companies with significant investment portfolios.

The Small Business Deduction

Section 125 of the ITA provides the SBD — a deduction from federal tax that effectively reduces the federal rate on a CCPC's active business income from 15% to 9% on the first $500,000 of income (shared among associated corporations). Ontario's small business deduction similarly reduces Ontario corporate tax to 3.2% on the same income.

Active business income is income from a business other than a specified investment business (primarily earning income from property) or a personal services business (a corporation performing services where the individual would be an employee if not for the corporation — the "incorporated employee" problem).

Dividend Planning: GRIP, LRIP, and Integration

Eligible Dividends and GRIP

A CCPC may pay eligible dividends to the extent of its general rate income pool (GRIP) — income taxed at the general corporate rate. Eligible dividends carry a higher gross-up (38%) and dividend tax credit for the individual shareholder, achieving closer integration on high-rate income.

Non-Eligible Dividends and LRIP

Income benefiting from the SBD generates the low rate income pool (LRIP) and must generally be paid out as non-eligible dividends (gross-up of 15%), which carry a lower dividend tax credit.

Capital Dividends (CDA)

The capital dividend account (CDA) is a notional account that accumulates:

• The non-taxable portion of capital gains realized by the corporation (50% of the gain — note the proposed inclusion rate increase to 2/3 was announced in 2024 but implementation has been deferred)
• Capital dividends received from other private corporations
• Life insurance death benefits minus the adjusted cost basis of the policy (a powerful estate planning tool for business owner clients)

An election under ITA s. 83(2) allows the corporation to pay a capital dividend equal to its CDA balance — the shareholder receives the amount tax-free. Overpaying the CDA results in a 60% penalty tax on the excess.

Inter-Corporate Dividends

Dividends received by a Canadian corporation from another Canadian corporation are generally deductible under s. 112 of the ITA — preventing double taxation as dividends pass up a corporate chain. However, "stop-loss rules" and "superficial loss rules" restrict the deduction in certain circumstances where the dividend is part of a tax planning arrangement.

Corporate Reorganizations

Section 85 Rollover

Section 85 allows a taxpayer (individual or corporation) to transfer eligible property to a taxable Canadian corporation at an elected amount (which may be below fair market value), deferring any accrued gain. In exchange, the transferor must receive at least one share of the corporation. This is the fundamental mechanism for:

• Estate freezes (locking in the value of shares at current FMV)
• Incorporating a proprietorship or partnership
• Transferring assets between related corporations

Amalgamations (Section 87)

When two or more taxable Canadian corporations amalgamate, the amalgamation is generally tax-neutral — losses, tax accounts (GRIP, LRIP, CDA, RDTOH), and tax pools carry forward to the amalgamated corporation. Share-for-share exchanges at FMV are deemed not to be dispositions for the shareholders. Loss utilization restrictions under s. 111(5) may apply if control has changed.

Butterfly Transactions

A butterfly transaction under s. 55(3)(b) allows a corporate group to split assets between shareholders tax-free through a series of corporate reorganization steps. Butterflies must satisfy strict conditions to avoid the deemed dividend rule in s. 55(2) — a provision that re-characterizes inter-corporate dividends as capital gains where one purpose is to reduce a capital gain. Butterfly transactions require careful planning and CRA technical compliance.

Capital Gains Exemption (QSBC Shares)

The lifetime capital gains exemption (LCGE) under s. 110.6 of the ITA allows individuals to claim an exemption on gains from qualifying small business corporation (QSBC) shares. The LCGE is $1,016,602 for 2024 (indexed annually). To qualify:

• The corporation must be a CCPC at the time of sale
• Substantially all (90%+) of FMV of corporation assets must be used in an active business carried on primarily in Canada at time of sale
• 50%+ of FMV of corporation assets must have been used in an active business for the preceding 24 months
• The shares must have been owned by the individual (or a related person) for the preceding 24 months

The LCGE exemption is one of the most valuable tax planning opportunities for business owners selling their companies — business lawyers structuring share purchase transactions should always review QSBC eligibility.

How Atticus Helps Ontario Corporate and Tax Lawyers

Corporate and tax matters involve extensive documentation — share purchase agreements, reorganization plans, CRA correspondence, advance rulings, and multi-year tax returns. Atticus supports Ontario corporate lawyers with:

• AI document analysis — AI reviews share purchase agreements, minute books, and reorganization documents to extract key terms, dates, and defined concepts
• Deadline tracking — track CRA filing deadlines, T2 corporate return due dates, and tax election deadlines (e.g., s. 83(2) CDA elections must be filed on or before the day the capital dividend is paid)
• Matter management — track complex multi-entity reorganization steps and CRA audit milestones
• LSO-compliant trust accounting — manage closing proceeds, deposit holdbacks, and purchase price adjustments in trust for share purchase transactions