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A bulk of India's GST revenue to come from 18% slab even after rationalisation

The 5% slab contributes around 7% to total GST revenues, while the 18% slab accounts for a dominant 65%. The 12% and 28% slabs contribute 5% and 11%.

Updated on: Aug 18, 2025, 15:51:19 IST
By , New Delhi
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The 18% tax slab is expected to remain as the biggest contributor to India's GST revenue if the Narendra Modi government's proposal for a two-tier GST rationalisation is implemented by Diwali, people aware of the matter told the Press Trust of India.

A sales assistant hands produce to a customer at a grocery store, known as a kirana, in Bengaluru, India, on Monday, Jun. 21, 2021. (Bloomberg)
A sales assistant hands produce to a customer at a grocery store, known as a kirana, in Bengaluru, India, on Monday, Jun. 21, 2021. (Bloomberg)

"The 18% slab will continue to account for a lion's share in GST revenue as per the Centre's proposal," one of the persons said. “We expect volumes to go up and a consumption boost which will help improve the GST revenue from the current level.”

Once the goods and services are categorised as merit and standard, 99% of the items in the 12% bracket will move to 5%, with the remaining moving to 18%. Also, 90% of the goods and services in the 28% bracket will move to 18%.

Only 5-7 items, the so-called “sin goods” will go into the the new 40% slab.

India's Goods and Services Tax, first implemented on 1 July 2017, follows a four-tier structure with rates of 5%, 12%, 18%, and 28%. Food and essential items are either exempt or taxed at 5%, while luxury and the so-called sin goods attract the highest rate of 28%.

The 5% slab contributes around 7% to total GST revenues, while the 18% slab accounts for a dominant 65%. The 12% and 28% slabs contribute 5% and 11%, respectively, to monthly GST collections.

The central government has proposed to the Group of Ministers on GST rate rationalisation a two-tier rate structure of 5% and 18% for “merit” and “standard” goods and services, and a 40% rate for about 5-7 goods. The proposal entails doing away with the current 12% and 28$ tax slabs.

According to government data, the average monthly GST collections have risen from 1.51 lakh crore in FY22 to 1.84 lakh crore in FY25. The indirect tax has a total of 1.51 crore taxpayers as against 65 lakh in 2017.

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