Corporate Tax Rates in Canada 2025

Updated March 2025 · 11 min read

Canada offers one of the most competitive corporate tax environments in the G7, particularly for small businesses. Understanding the federal and provincial corporate tax rates, the rules that determine which rates apply, and legal strategies to minimize your tax burden is essential for any incorporated Canadian business owner.

Federal Corporate Tax Rates 2025

The federal government sets a base corporate tax rate that applies to all Canadian corporations, then adjusts it based on the type of corporation and its income:

• General federal corporate rate: 15%
• Federal small business rate (CCPCs): 9% (after the 6% small business deduction)
• Investment income within a CCPC: 38.67% (includes refundable tax)

What Is a CCPC?

A Canadian-controlled private corporation (CCPC) is the key classification for accessing the small business rate. To qualify as a CCPC, a corporation must:

• Be incorporated in Canada
• Not be publicly traded on a stock exchange
• Not be controlled by non-residents, public corporations, or a combination thereof
• Be controlled (directly or indirectly) by Canadian residents

The vast majority of small businesses in Canada are CCPCs. The CCPC designation unlocks the small business deduction, enhanced SR&ED tax credits, the capital gains exemption on qualifying small business shares, and other significant tax advantages.

The Small Business Deduction and the $500,000 Limit

The small business deduction (SBD) reduces the federal corporate rate from 15% to 9% on the first $500,000 of active business income. This $500,000 threshold is called the business limit. Key points:

• The business limit is shared among associated corporations — you can't create multiple companies to multiply the $500,000 threshold
• The SBD is reduced if the corporation earns significant passive investment income (over $50,000 in the year)
• The SBD is also reduced for corporations with taxable capital exceeding $10 million (full phase-out at $15 million) — this generally only affects mid-sized businesses
• Income above $500,000 is taxed at the general 15% federal rate

Provincial Corporate Tax Rates 2025

Provincial corporate tax rates are added to the federal rate. Each province sets its own small business and general corporate rates. Combined (federal + provincial) rates for the small business rate (on first $500,000 of active income for CCPCs) by province:

• Alberta: 11% (9% federal + 2% provincial small business rate)
• British Columbia: 11% (9% federal + 2% provincial)
• Ontario: 12.2% (9% federal + 3.2% provincial)
• Quebec: 14.5% (9% federal + 5.5% provincial — after Quebec abatement adjustment)
• Manitoba: 12% (9% federal + 0% provincial — Manitoba eliminated its small business rate in 2024, now using general rate on all income up to $500K at 12%)
• Saskatchewan: 11% (9% federal + 2% provincial)
• Nova Scotia: 13.5% (9% federal + 4.5% provincial)
• New Brunswick: 13.5% (9% federal + 4.5% provincial on first $500K from 2025)
• PEI: 10% (9% federal + 1% provincial)
• Newfoundland: 12% (9% federal + 3% provincial)

Note: Provincial rates change periodically. Verify current rates with your accountant or the CRA/provincial revenue agency.

General Corporate Rate (Income Above $500,000)

Income above the $500,000 small business limit is taxed at the general rate. Combined federal + provincial general corporate rates for 2025:

• Alberta: 23% (15% federal + 8% provincial)
• British Columbia: 27% (15% federal + 12% provincial)
• Ontario: 26.5% (15% federal + 11.5% provincial)
• Quebec: 26.5% (15% federal + 11.5% provincial)

Passive Investment Income Rules

CCPCs that earn significant passive investment income face a reduction in their small business deduction. For every $1 of passive investment income above $50,000, the business limit is reduced by $5. At $150,000 of passive income, the full business limit is eliminated and all active income is taxed at the general rate. This rule was introduced in 2018 and targets "tax deferral" strategies involving holding investment portfolios inside operating corporations.

Corporate Tax Filing Obligations

T2 Return

All Canadian corporations must file a T2 corporate income tax return annually, even if no tax is payable (the return may still be required). Key deadlines:

• Filing deadline: 6 months after the corporation's fiscal year-end
• Payment deadline: 2 months after year-end for most CCPCs; 3 months after year-end for CCPCs that qualify for the extended deadline
• Monthly installments: Required if previous year's tax exceeded $3,000

Choosing a Fiscal Year-End

Unlike personal taxes which always use December 31, corporations can choose any month-end as their fiscal year-end. A December 31 year-end aligns with most financial reporting, but other year-ends can provide cash flow advantages depending on business seasonality and tax planning needs.

Key Tax Planning Strategies for CCPCs

Income Splitting (Limited)

The Tax on Split Income (TOSI) rules introduced in 2018 significantly restrict income splitting with family members. Consult a CPA before attempting to split income through dividends to spouses or adult children.

Capital Dividend Account (CDA)

When a CCPC realizes a capital gain, 50% of the gain is added to the CDA — a notional account that allows the corporation to pay tax-free capital dividends to shareholders. Properly using the CDA can result in significant tax savings when extracting gains from corporations.

Lifetime Capital Gains Exemption (LCGE)

The LCGE allows individual shareholders of qualifying small business corporations to shelter a large amount of capital gains from tax when selling their shares. The limit for Qualified Small Business Corporation (QSBC) shares is $1.25 million (2025 budget indexed amount). Qualifying requires meeting specific asset tests over time — plan years in advance of any sale.