Every year, Quebec "indexes" its tax system: it nudges the thresholds upward to keep pace with rising prices. If you've just arrived, it's a quiet piece of good news that touches almost every paycheque.
The indexation. For the 2026 taxation year, the indexing rate is 2.05%. That figure reflects the rise in consumer prices seen in Quebec the previous year. In practice, most tax credits, thresholds and benefits go up by the same amount.
The basic personal amount. This is the slice of income on which you pay no provincial tax at all. In 2026 it reaches $18,952, according to the official parameters of the tax system. In other words, the first $18,952 you earn in the year is not taxed by Quebec.
The brackets. Quebec's income tax is progressive: the rate climbs in slices. For 2026, the indexed brackets are: 14% up to $54,345, then 19% from $54,345 to $108,680, 24% from $108,680 to $132,245, and 25.75% above that. Because the thresholds rose, the same portion of your salary can fall into a lower bracket than in 2025.
The effect on your wallet. The government pegs the overall gain at $931 million across all households, including more than $863 million of relief for taxpayers. Spread over millions of people, that works out to a few dozen dollars per paycheque on an average salary — modest, but real, especially when everything costs more.
Good to know for newcomers. The indexation is automatic: you have nothing to do, and your employer adjusts the source deductions. But if you arrived partway through the year, your basic personal amount may be reduced in proportion to your months of residence — a detail that often surprises people at their first tax return. When in doubt, file with recognized software or a free tax-help service before concluding that you owe money.
