Here is a summary of the House of Commons Finance Committee meeting on October 22, 2025, regarding clause-by-clause consideration of Bill C-4, an act respecting certain affordability measures for Canadians.
Pierre Leblanc, Director General of the Personal Income Tax Division at the Department of Finance, and Stefania Bartucci, Director of Strategic Projects, appeared as witnesses to answer technical questions. The meeting focused on amendments to the bill, specifically regarding the proposed reduction of the lowest personal income tax rate.
Mr. Leblanc explained that the government’s proposed one-percentage-point reduction in the lowest tax bracket would cost approximately $5.5 billion annually. He noted that while the tax cut benefits about 22 million Canadians, it also reduces the value of non-refundable tax credits (like the disability tax credit) because they are calculated at the same rate. He stated that for a very small group (less than 0.3% of filers), such as those with large medical expenses or accumulated tuition credits, the loss in credit value could outweigh the tax savings, but the government has committed to resolving these unintended consequences.
Ms. Bartucci confirmed that the department analyzes proposals for effectiveness, efficiency, equity, and complexity. She stated that the department could not provide specific analysis on the fiscal impact of proposed amendments on the federal budget or deficit, as that is outside their technical scope. She added that any reporting on the tax cut’s effects would rely on historical data and estimates, as actual tax filer data for the current year would not be available for several years.
The committee debated an NDP amendment (NDP-1) to create a new 37% tax bracket on income over $1 million, which was not voted on. A Conservative amendment (CPC-1) to further reduce the lowest tax rate to 12.75% was withdrawn by the member who moved it, after extensive debate where Liberal members argued it would be fiscally irresponsible and add billions to the deficit. The committee then proceeded to debate NDP-2, which requires the Minister of Finance to report to Parliament on how the tax cut affects non-refundable tax credits, a measure supported by the Bloc Québécois.
AI-generated summary — may contain errors; verify against the official evidence.