"GST 2.0 has shown that rate rationalisation need not compromise revenue buoyancy." Critically examine, using recent collection trends.

GST 2.0 was approved by the 56th GST Council and took effect on 22 September 2025. It replaced the four-slab structure with two rates of 5% and 18% and a 40% demerit rate [1]. In October 2026, gross collections were over ₹2.31 lakh crore, up 22.9% year-on-year [2]. This appears to support the claim, but only in part.

Evidence supporting the claim

• Strong headline growth: October 2026 was the second-highest monthly collection since GST began. It was also the second month in a row above ₹2 lakh crore, behind only April 2026 (about ₹2.43 lakh crore) [2].
• Net revenue held up: net GST rose 26% to over ₹2.03 lakh crore, because refunds grew only 6.5% [2].
• Revenue did not collapse: gross collections for April–October FY27 grew 13.2%, and net collections grew 13% [2].
• The standard rate still covers revenue needs: in 2015 the Arvind Subramanian Committee set the Revenue Neutral Rate at 15–15.5% and suggested a 17–18% standard rate [3]. GST 2.0's 18% sits at the top of that band [1].
• Measures that offset the cuts: a 40% demerit rate applies to sin and luxury goods [1]. GST on coal was raised from 5% to 18% [4].

Limitations of the claim

• Imports inflate the headline: import GST grew 42%, while domestic GST grew 16% [2]. Much of the GST paid on imports comes back to firms as input tax credit, so it says little about consumption-led buoyancy.
• A festive spike, not a trend: October's 22.9% is far above the 13.2% cumulative growth for the year so far [2]. Also, October 2025 came just after the rate change, so a low base may have inflated the growth rate.
• The wrong benchmark: year-on-year growth does not show what the cuts cost. Buoyancy is proven only if collections beat what the pre-cut rates would have raised. No official estimate of the revenue impact has been published.
• Uneven effect on States: the compensation cess is being wound down, as with coal [4], and States cannot set GST rates on their own. A healthy national total can hide SGST shortfalls in individual States.

GST 2.0 has shown that rate rationalisation has not caused a revenue crisis. But one festive month cannot prove that the cuts paid for themselves. The GST Council should publish an official revenue-impact estimate using the Revenue Neutral Rate method. It should track domestic and State-wise net collections over several quarters and settle what replaces the compensation cess. That would make the 5%/18% structure both simpler and fiscally sustainable, in keeping with the cooperative federalism behind Article 279A.