A panel of state ministers set up to suggest changes to the GST rate structure may propose a single 15% levy by merging the 12% and 18% slabs, but is wary of proposing an increase in the threshold rate to 8%, from 5%, given growing inflation concerns.

The group of ministers (GoM) is likely to meet this week to take a final call on rates and firm up its recommendations, people familiar with deliberations said. The GST Council is expected to meet early next month to consider the report and the revenue status of the states.

The council had set up the GoM on rate rationalisation at its September 2021 meeting in Lucknow.

Rate Structure
The group was asked to review exempt goods to expand the tax base, suggest changes to simplify the rate structure and garner the required resources.

The GST has a four-tier structure, consisting of 5%, 12%, 18%, and 28% rates. Additionally, there are special rates for some goods such as precious metals, making the regime complex. When GST was rolled out in July 2017, the revenue-neutral rate was seen at about 15.5 per cent

Revenue-neutral rate is the rate at which there is no loss of tax revenue for states or the Centre following the switch to GST. That peg has since dragged down to about 11.6% because of exemptions and reductions in rates on many goods.