Bill C‑4, formally called the Making Life More Affordable for Canadians Act, is now law and brings a package of tax and affordability measures aimed at middle‑class Canadians. It cuts the lowest federal income tax rate, enhances GST relief for first‑time homebuyers, and permanently removes the federal consumer fuel charge from legislation. For families, workers, and small businesses, this Bill C‑4 package can mean hundreds of dollars in annual savings.

How Bill C‑4 changes federal income tax

Part 1 of Bill C‑4 reduces the marginal personal income tax rate on the lowest federal tax bracket to 14.5% for 2025 and 14% for 2026 and later years. In 2026, this lower rate applies to taxable income up to about 58,500 dollars, with nearly half of the tax relief going to people in that first bracket. Government estimates suggest the “middle‑class tax cut” will deliver more than 27 billion dollars in tax savings over five years, with two‑income families saving up to about 840 dollars annually.

For most employees, employers already adjusted payroll tables starting in mid‑2025, so part of the benefit is showing up in each paycheque rather than only at tax filing time. If your income wasn’t subject to payroll deductions (for example, self‑employment), you may only fully see the Bill C‑4 effect when you file your 2025 and 2026 returns.

Extra help for first‑time homebuyers

Part 2 of Bill C‑4 creates a temporary GST new housing rebate for first‑time homebuyers. First‑time buyers of qualifying new homes valued up to 1 million dollars can get the full 5% federal GST rebated, and homes between 1 and 1.5 million dollars benefit from a reduced rebate. Government examples suggest this can save a first‑time buyer up to about 50,000 dollars on a new home.

This measure is time‑limited and tied to specific agreement dates, so it is critical to have your builder, lawyer, or notary confirm whether your purchase qualifies. In high‑cost markets like the Greater Toronto Area or Vancouver suburbs, the Bill C‑4 rebate can be one of the few ways first‑time buyers see a meaningful price break on new construction.

Permanent removal of the federal consumer fuel charge

Bill C‑4 also permanently removes the federal consumer fuel charge from federal legislation after the government had already cancelled it as of April 1, 2025. The Department of Finance estimates that eliminating this requirement reduced gasoline prices by up to 18 cents per litre in many provinces and territories compared with 2024–2025 levels. By striking the fuel charge from the Greenhouse Gas Pollution Pricing Act, the government makes it harder for any future administration to simply “turn it back on” without passing another law.

For households that drive frequently or rely on oil or propane heating, this can mean noticeable savings over a year, especially in rural or suburban communities where alternatives are limited.

What you should do next

First, review your 2025 and 2026 paystubs or tax returns to confirm you are receiving the Bill C‑4 tax cut, particularly if your income falls in the lowest bracket. Second, if you are a first‑time buyer considering new construction, factor the enhanced GST relief into your budgeting and timelines and get written confirmation of eligibility. Finally, keep in mind that while fuel is cheaper than under the old federal charge, it can still fluctuate with world oil prices, so the savings from Bill C‑4 should be seen as partial relief, not a guarantee of low prices.