What Changed with First Marginal Rate and Top-Up Credit
Effective July 1, 2025, the lowest federal marginal rate for personal income was reduced from 15% to 14%, with a pro-rated full-year rate of 14.5% for 2025, and fully 14% starting in 2026. (canada.ca) Alongside this, a Top-Up Tax Credit was introduced to maintain a 15% rate for amounts over the first income bracket ($57,375) for certain non-refundable tax credits. (canada.ca)
Who Benefits Most
- Lower-income and middle-income individuals, especially those in first tax bracket—savers, rent-payers, lower earners.
- Two-earner households benefit more, up to $840 in tax savings per year. Single individuals up to around $420. (canada.ca)
Tax Planning Strategies
Income Timing & Splitting
- Where possible, defer or shift income so more income falls into the first bracket—e.g. negotiate bonuses, annuities, or remuneration that can be structured for 2025 vs. 2026.
- Consider income splitting using spousal RRSPs or pension income splitting to ensure incomes remain below thresholds when feasible.
Claiming Non-Refundable Credits Strategically
- Since many non-refundable credits are multiplied by the lowest marginal rate, reduced rate means credits are slightly less valuable—but Top-Up Credit helps maintain value over the threshold.
- Adjust claims for things like Union dues, charitable donations, interest expenses so that taxable amount falls where credits maximize value.
Withholding & Installments
- Employers should update source deductions as of July 1, 2025 to reflect 14% in the first bracket. Individuals subject to installment payments or expecting large taxable investment income should review calculations. (canada.ca)
Example
Sarah earns $60,000 in 2026. The first $57,375 is taxed at 14%, and above that, she’s in the next bracket (assuming current brackets). Previously, that first portion was taxed at 15%. She saves about $10-15 per week via payroll withholding, and then makes up the rest when she files. Additionally, her non-refundable credits over $57,375 are partially preserved by the Top-Up Credit.
Risks and Things to Watch
- Provincial rates and thresholds still apply separately—savings federally may be offset by provincial tax brackets.
- Certain major incomes (capital gains, dividends) or business incomes aren’t taxed in the same way and may not benefit equally.
- Keep records for withholding, as CRA may require proof of correct source deductions.
Bottom line: The tax rate cut and Top-Up Credit represent tangible savings for millions of Canadians. Careful planning can help you maximize benefits, minimize surprises, and adapt your financial strategy efficiently in 2026.