What changed and when
As part of the Making Life More Affordable for Canadians Act (Bill C-4), the lowest federal personal income tax rate will be cut from 15% to 14% effective July 1, 2025. (canada.ca) For the 2025 tax year, this means:
- First half of 2025 (Jan-June): rate remains at 15%
- Second half (July-Dec): rate is 14%
- Effective full-year average rate for 2025: ~14.5%. (canada.ca)
Also, non-refundable tax credits that used to use 15% as the base rate will shift in tandem—they’ll reflect the new lowest rate. (canada.ca)
What this means for your paycheck & withholding
- If you’re an employee, expect reduced withholding starting July 1, 2025, once CRA’s new payroll deduction tables come into effect. (canada.ca)
- That means you may see slightly more take-home pay in the second half of the year without having to wait for your return.
- For self-employed individuals, the tax payable for 2025 will calculate using both 15% and 14% sections of income.
How non-refundable credits are affected
Non-refundable credits—such as those for age, disability, eligible dependants, tuition—use the lowest tax rate as a multiplier. With this shift,
- The credit value drops slightly (from what it would have been at 15%), especially for income above the first bracket during 2025.
- Using the right rate matters when claiming credits on your return this coming tax season. Some credits will be prorated. (canada.ca)
Practical tips & planning moves
- Adjust your withholding expectations: you'll see better take-home pay starting mid-2025.
- Keep good records of income splitting across first & second half of year if you have multiple income sources.
- Plan large deductions or non-refundable credits so that more falls into the second half of 2025 where credits are more valuable relative to the tax rate.
Example calculation
Suppose your taxable income is $50,000 — all it falls under the first tax bracket.
-
If you earned it evenly over the year:
- First $25,000 taxed at 15% → $3,750
- Second $25,000 at 14% → $3,500
- Total tax: $7,250, suggesting an effective rate of 14.5% overall.
-
If you had $20,000 in January-June and $30,000 July-December, it shifts favorably.
Bottom line
Lowering the lowest federal income tax rate to 14% does two things: it gives immediate relief by reducing withholding in the second half of 2025, and it improves the value of non-refundable credits. Filing your 2025 return in 2026 will capture the full benefit. Understanding where your income and deductions fall in the year can help you plan to benefit the most.