GST 2.0 One Year On: How the New Rates Changed Your Business Costs
The GST 2.0 new rates – the biggest overhaul of India’s indirect tax since GST began – took effect on 22 September 2025, collapsing a four-slab system into a lean two-rate structure. A year on, the headline rate cuts are old news; the real work for businesses in Hyderabad is managing the aftermath. This guide explains what changed and what to watch.

What the GST 2.0 new rates actually changed
With effect from 22 September 2025, GST moved to two principal slabs – 5% and 18% – with the earlier 12% and 28% slabs largely removed and their items redistributed. A special 40% rate now applies to sin, luxury and other non-essential goods such as tobacco and aerated drinks. For most everyday goods and services, the change meant a shift down to 5% or 18%.
The rate cut looked simple – the fallout was not
Reducing a rate sounds like good news, but it created work. Businesses had to reprice catalogues, update ERP and billing masters, reprint MRP labels, and manage anti-profiteering optics – passing the benefit of a lower rate to customers rather than pocketing it. Getting the effective-date cut-off wrong on invoices around 22 September 2025 caused mismatches that are still surfacing in reconciliations.
Input tax credit and inverted duty
The GST 2.0 new rates changed input-output equations. Where outputs fell to 5% but key inputs remained at 18%, businesses face an inverted duty structure and accumulated input tax credit, which ties up working capital and requires refund claims. Transitional credit on stock held on the changeover date, and correct credit reversal, are common pain points a year on.
Classification disputes
Whenever slabs are redrawn, classification becomes contentious – is a product 5%, 18% or in the 40% de-merit category? These borderline calls are exactly where scrutiny notices and litigation arise, and where a defensible, documented position matters.
What businesses should do now
A year in, review your rate masters against the current notifications, reconcile input tax credit and file any inverted-duty refunds, keep a clear classification rationale on file, and check that pricing changes were properly passed on. Confirm current rates on the GST portal. ComplianceKart helps businesses across Hyderabad – Kondapur, Gachibowli, Kokapet, Manikonda, Kothaguda, Hitech City and Mindspace – stay on top of the GST 2.0 new rates. See our guide on handling a GST notice or visit ComplianceKart.
Frequently asked questions
When did the GST 2.0 new rates take effect?
The new rates became effective from 22 September 2025.
What are the GST slabs now?
Two principal slabs of 5% and 18%, with the earlier 12% and 28% slabs largely removed, and a special 40% rate for sin and luxury goods.
Why is my input tax credit piling up after the GST 2.0 new rates?
If your output rate fell to 5% while inputs remain at 18%, you have an inverted duty structure that accumulates credit, which can be claimed as a refund subject to conditions.
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