GST Updates September 2026

Dear Client, GST has been unusually busy over the last few weeks  record tax collections, important Supreme Court and High Court rulings, a big Council meeting round the corner, and some return-filing changes that affect your monthly compliance. We have picked out everything that actually matters to a business owner and explained it in plain language, with no legal jargon. Here it is.

1. Big GST Council Meeting on 12th September — Here’s What May Change

The GST Council the body headed by the Union Finance Minister and made up of the finance ministers of every state, which decides all GST rules and rates is meeting on 12th September 2026 in Delhi. An Officers’ Meeting, where senior tax officials from the Centre and states prepare the ground, will be held a day earlier on 11th September. This is the Council’s first full sitting in almost a year. Its last meeting, the 56th, was held on 3rd–4th September 2025 and delivered what is now widely called “GST 2.0” the move from four tax slabs to mainly two (5% and 18%), with a separate 40% rate kept for a short list of luxury and “sin” goods. Those changes took effect from 22nd September 2025, so this meeting lands almost exactly one year later, at a natural point to take stock of how the new structure has actually performed.

A lot has changed in that one year, which is part of why this meeting is being watched closely. The GST Appellate Tribunal (GSTAT), covered in more detail later in this newsletter, has gone from non-existent to operational with benches opening across the country. GST collections have also stayed strong through this transition August 2026 alone brought in nearly ₹2 lakh crore, 14.8% higher than a year earlier giving the Council a full year of real revenue data to examine rather than projections.

The Council’s decisions do not take effect on their own. Whatever is decided on 12th September still needs to be formally notified by the CBIC before it becomes binding law, and that process usually takes some days to weeks.

2. Supreme Court: ITC Allowed on Towers, Structures Fixed to Land

The Supreme Court has finally closed a long-running dispute involving Bharti Airtel and other telecom companies. The department had argued that telecom towers being fixed to land or a rooftop are “immovable property” and therefore ITC (input tax credit) should be blocked on them under Section 17(5).

The Supreme Court disagreed and confirmed that such towers qualify as “plant and machinery” equipment used to run the business  and are therefore NOT covered by the immovable property block. The department’s plea to get this decision reviewed was also dismissed on 19th August 2026, so the matter is now settled.

3. Supreme Court: No GST Arrest Without a Written, Communicated Order

In an important ruling protecting taxpayers’ rights, the Supreme Court has held that before GST officers can arrest a person under Section 69 of the CGST Act, the written order authorising that arrest must first be communicated (shared) with the person concerned.

In simple terms  an officer can no longer arrest someone first and explain the paperwork later. The person must know, in writing, why and under what authority they are being arrested, before the arrest happens.

4. GST Tribunal (GSTAT) Is Now Up and Running Nationally

After nearly eight years of businesses having no proper second-level forum to appeal GST orders, the GST Appellate Tribunal (GSTAT) is now functioning. The Principal Bench in Delhi started hearing cases in February 2026, and State Benches (Kolkata, Chennai, Hyderabad, Agra, and others) have been opening in phases through the year. GST Updates September 2026.

• The one-time window to file old, backlogged appeals (for orders passed before 1st April 2026) closed on 30th June 2026.
• For any fresh order from the first appellate authority now, the normal rule applies: file your GSTAT appeal within 3 months of receiving the order.
• Filing needs a 20% pre-deposit of the disputed tax and is done online through Form APL-05.

5. New Offline Tool for Accumulated ITC Refunds

GSTN has released a new Excel-based offline utility to prepare “Annexure-B” the statement required while filing a refund claim for accumulated Input Tax Credit (typically relevant for exporters and businesses with an inverted duty structure, such as many manufacturers and textile units).

6. Supreme Court Settles the Online Gaming GST Debate

In a landmark ruling, the Supreme Court has held that GST applies to online gaming, fantasy sports, and casino platforms wherever players stake real money on an uncertain outcome  regardless of whether the game itself involves skill or chance. This overturns an earlier Karnataka High Court view that had gone in the platforms’ favour.

7. Advance Rulings to Get More Consistent Across States

One long-standing headache under GST has been that businesses operating in multiple states could get completely different, even contradicting, Advance Rulings from different State Authorities on the very same question  for example, how a product should be classified, or whether a particular activity counts as a ‘supply’ at all.

From April 2026, the Principal Bench of the GST Appellate Tribunal (GSTAT) has been designated as the National Appellate Authority for Advance Rulings (NAAAR). It can now issue a single, binding, nationwide ruling that overrides conflicting state-level rulings on the same question.