NEW DELHI — When the GST Council met in September 2025 and voted to tear up the old four-slab structure, the government called it “next-generation GST reform.” Traders had a shorter name for it: a “Double Diwali.” A year on, with the reform settled into the economy, that second description looks closer to the truth.

What actually changed

Effective 22 September 2025, GST 2.0 replaced the tangle of 5%, 12%, 18% and 28% slabs (plus cess) with two main rates — 5% and 18% — and a narrow special rate of 40% reserved for luxury and sin goods such as tobacco, alcohol and luxury vehicles. Essentials sit at zero or 5%. The effect on everyday bills was immediate: a long list of fast-moving consumer goods — from chocolates, biscuits and mineral water to hair oil, shampoo, soap and oral care — moved from 18% down to 5%, while cement, a key input for every home and road, fell from 28% to 18%. By the reports around the rollout, the overwhelming majority of items in the old 12% slab dropped to 5%, and most of the 28% category fell to 18%. Individual life and health insurance policies were made nil-rated — a direct cut in the cost of protecting a family.

The logic beneath the relief

Lower rates are the visible half of the reform; simplification is the quieter, more durable half. For years, GST’s critics — many of them friendly — argued that four slabs plus cess invited classification disputes, litigation and compliance headaches, especially for small businesses. Collapsing the structure toward two rates does not just cut tax; it cuts friction. As one government economic adviser put it, GST 2.0 is a process reform for efficiency, not merely a revenue measure. A tax that is simpler to comply with is a tax more people actually pay.

The festive proof

The clearest early evidence came at the till. By the trade body CAIT’s survey, the 2025 festive season — the first under the new rates — delivered record business, with goods sales of around ₹5.40 lakh crore and a combined goods-and-services total of roughly ₹6.05 lakh crore, the highest in the country’s trading history. Traders themselves credited the GST cuts, alongside a strong swadeshi mood, with the surge; the same survey reported that an overwhelming share of consumers preferred Indian-made goods. As the 2026 festive season arrives, the structural tailwind — cheaper essentials, simpler compliance — is still blowing.

The honest ledger

None of this is free. The government itself has acknowledged that rationalising rates downward means a one-time dip in collections, and there are transition costs for businesses managing new pricing and input-tax-credit rules. But that is the correct trade to make. A tax system earns compliance through simplicity and fairness, not through punitive complexity; and a reform that leaves more money in the hands of the ordinary consumer, especially on the goods a modest household buys most often, is a reform that pays for itself in demand, growth and trust. One year in, GST 2.0 looks less like a giveaway than like the tax system the original GST was always meant to become.