How the General Rate Reduction Applies to Canadian Private Corporations

If you own an incorporated business in Canada, the federal corporate tax rate on your profits is not one number. It depends on what kind of income you earn, how much of it you earn, and which deductions and reductions apply. The General Rate Reduction (GRR) is one of those reductions, and it is often misunderstood. This guide explains what the GRR does, which income it applies to, how it works with provincial tax, and how to confirm it on your T2 return.

Verification note: Rates, thresholds, and deadlines below reflect commonly published federal and provincial figures. Confirm each one against current CRA guidance (and your provincial or territorial tax authority) before filing or publishing.

What Is the General Rate Reduction?

The GRR is a federal reduction in the corporate income tax rate under Part I of the Income Tax Act. It lowers the federal rate on a corporation’s “full rate taxable income,” which is general business income that does not receive another preferential rate.

The GRR is applied automatically in the T2 tax calculation. You do not elect it, and you do not apply for it separately. What you control is how your income is classified and reported.

GRR versus the Small Business Deduction

The two measures target different income and do not stack on the same dollar of income:

• Small Business Deduction (SBD): Available only to Canadian-controlled private corporations (CCPCs). It reduces the federal rate on the first $500,000 of qualifying active business income (the “business limit”). The business limit may be reduced or eliminated by passive investment income, large taxable capital, or association with other corporations.
• GRR: Applies to income that does not qualify for the SBD, such as active business income above the business limit.

The GRR is not a small-business measure. It is the general rate reduction for corporations, and CCPCs use it mainly on income above their business limit.

Who Is Eligible for the GRR?

CCPC

Disclaimer: The content on this website is AI-generated for informational and educational purposes only. It does not constitute certified financial, tax, or legal advice. Because accounting standards and local tax codes vary frequently, readers should consult a qualified accountant or certified professional before making any financial decisions based on this material.