Tax Brackets 2025 Ontario Income. (i) these rates do not include the ontario health premium. To calculate your ontario income tax, you must first determine your taxable income.

This results in an effective tax rate of. 16 rows ontario 2025 and 2024 tax rates & tax brackets the ontario tax brackets and personal tax credit amounts are increased for 2025 by an indexation factor of 1.028 (2.8% increase), except for the $150,000 and $220,000 bracket amounts, which are not indexed for.