TL;DR: The 56th GST Council meeting on 3 September 2025 approved a major slab rationalisation that took effect on 22 September 2025. The 12% and 28% slabs are gone. India now has two main GST slabs (5% and 18%), a 40% special rate for select luxury and demerit goods, and a continuing 0% exempt category. The goal is fewer classification disputes, lower tax on essentials, and a simpler system overall. If you sell, buy, or advise on goods and services in India, your catalogue, contracts, and billing software need to reflect this change from 22 September 2025 onward.

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What is GST 2.0 and where did it come from

India introduced the Goods and Services Tax in July 2017, replacing a patchwork of central and state levies with a single destination-based indirect tax. The architecture was always dual: CGST and SGST apply on intra-state supplies, while IGST applies on inter-state supplies. The GST Council, chaired by the Union Finance Minister and comprising state finance ministers, recommends rates and structural changes.

From 2017 onward, the rate structure settled into what most practitioners came to know well: a nil or exempt category, a 5% slab for essentials, a 12% slab for an intermediate band, an 18% slab for standard goods, and a 28% slab for luxury and so-called demerit goods. On top of the 28% rate, a cess applied to tobacco, aerated drinks, automobiles, and similar categories.

That multi-slab architecture had a well-documented problem. The lines between 12% and 18%, and between 5% and 12%, generated a disproportionate share of classification disputes. A biscuit at one price point, a dairy product in one form, a textile in one composition, could end up straddling two slabs depending on how you read the tariff headings and how CBIC interpreted them in circulars. Advance ruling authorities across states sometimes gave contradictory answers on identical products. Litigation accumulated.

The 56th GST Council meeting, held on 3 September 2025, approved a rationalisation that the industry had been discussing for years. The reform is now commonly called GST 2.0. It took effect on 22 September 2025.

The old slab structure at a glance

To understand what changed, you need a clear picture of what existed before 22 September 2025. The pre-reform system had five principal slabs:

  • 0% (nil/exempt): essentials such as fresh food, unbranded staples, and certain health goods.
  • 5%: a broad band covering items deemed essential or mass-use but not exempt.
  • 12%: an intermediate band that captured a range of processed goods, services, and certain manufactured items.
  • 18%: the standard slab applying to most electronics, construction materials, financial services, and general manufactured goods.
  • 28%: the top rate for luxury goods, consumer durables, and demerit goods, often paired with a compensation cess.

The 12% and 28% slabs, in particular, had practical problems. The 12% slab was large enough to warrant substantial classification litigation. The 28% slab, combined with cess, created very high effective rates, and the cess structure was complex in its own right.

The new structure: 0%, 5%, 18%, and 40%

Under GST 2.0, effective from 22 September 2025, the structure looks like this:

  • 0% (nil/exempt): continues for certain essentials. This category is not abolished.
  • 5%: the lower main slab, intended for essentials and mass-use goods. Many items that previously attracted 12% have moved here, and several items got more favourable treatment.
  • 18%: the upper main slab, now the standard rate for most goods and services that are not essentials and not luxury/demerit.
  • 40%: a new special rate applicable to select luxury and sin/demerit goods. This replaces the combination of the 28% base rate plus cess for a defined subset of categories.

The headline change is the removal of the 12% and 28% slabs as general categories. The two-slab core (5% and 18%) is meant to reduce the number of classification calls a business or tax officer has to make.

Old vs new: a comparison table

AspectOld multi-slab system (pre-22 Sep 2025)New structure (from 22 Sep 2025)
Number of main slabs5 (0%, 5%, 12%, 18%, 28%)4 (0%, 5%, 18%, 40%)
12% slab✓ Active, broad band✗ Removed
28% slab✓ Active for luxury/demerit✗ Removed
40% special rate✗ Did not exist✓ Applies to select luxury and sin goods
Compensation cess✓ Applied on top of 28% for some goodsReplaced within the 40% mechanism for most covered goods; tobacco, pan masala, cigarettes, and bidi retain 28% plus cess until the cess-loan liabilities are discharged
Classification disputes✓ High, particularly at 12%/18% boundaryExpected to reduce with fewer slabs
Essentials treatment✓ Mostly 5% or exempt✓ Continues, some items moved to more favourable treatment
Effective dateN/A22 September 2025
Reform approved byN/A56th GST Council, 3 September 2025

Why simplification matters for compliance

Consider what a supplier of, say, a food product had to do under the old system. The applicable rate could be nil, 5%, 12%, or 18%, depending on whether the item was branded or unbranded, processed or unprocessed, packaged in a particular way, or classified under a particular tariff heading. Getting it wrong meant either paying excess tax (reducing competitiveness) or paying short (creating a liability with interest and penalties). Both outcomes were common.

For a business with a large product catalogue spanning different categories, the compliance burden was significant. You needed to classify hundreds of line items correctly, track rate changes from council meetings and CBIC circulars, update your ERP or billing system accordingly, and ensure your tax invoices showed the right rate. If you claimed input tax credit on purchases taxed at 12%, and then a reclassification moved the item to 18%, your ITC position changed.

Fewer slabs reduce the number of wrong turns. When the boundary conditions are 5% and 18% rather than 5%, 12%, and 18%, the middle ground disappears and many items that previously needed a judgment call between 12% and 18% now have only one answer.

This is the stated rationale behind GST 2.0: reduce classification disputes, lower the tax burden on essentials through the consolidation into 5%, and create a more predictable environment for businesses and consumers.

What moves to which slab: category examples

This section describes the kinds of goods and services that official commentary has associated with each slab. These are illustrative examples, not an exhaustive or per-item rate guarantee. The definitive position for any specific item comes from the CBIC notification, the relevant HSN/SAC heading, and any applicable circulars. When in doubt, obtain an advance ruling or professional advice.

5% slab (essentials and mass-use goods):

Among the items placed in or moved to the 5% slab are various food products, several medicines, and electric vehicles. Two categories moved further than 5%: individual life and health insurance policies moved to the nil (0%) rate with effect from 22 September 2025, and a number of dairy items, such as UHT milk and pre-packaged paneer, moved to nil rather than 5%. The intent of the 5% slab is to keep consumer prices lower for items that have broad population use.

18% slab (standard goods and services):

The 18% slab absorbs what was previously split across the 12% and 18% brackets for many categories. Among the items in this slab are many electronics, cement, standard vehicles, and apparel. For a large proportion of goods and services that are neither essentials nor luxury items, 18% is the applicable rate from 22 September 2025.

40% special rate (luxury and demerit goods):

Among the items subject to the 40% rate are aerated drinks and premium cars. For these categories the 40% rate replaces the earlier 28%-plus-cess structure from 22 September 2025. Tobacco, pan masala, cigarettes, and bidi are an exception: they continue under the existing 28% GST plus compensation cess until the government discharges the compensation-cess loan liabilities, so the 40% consolidation does not yet apply to them. The 40% rate applies to what policy commentary describes as luxury and sin goods.

0% (exempt/nil):

The exempt category continues. Certain essentials that have historically been outside the GST net remain there under GST 2.0.

Impact on input tax credit

Input tax credit is the mechanism by which a registered person recovers the GST paid on inputs against the GST liability on outputs. It is one of the most operationally significant aspects of any rate change.

When slabs change, ITC positions shift in two directions. For businesses that buy inputs now taxed at 18% rather than 12%, the ITC they can claim is higher, which benefits cash flow. For businesses that sell outputs that moved from 18% to 5%, the ITC chain is compressed: you may be paying 18% on inputs but collecting only 5% from customers, creating an inverted duty structure that requires either a refund claim or a margin squeeze.

The inverted duty refund mechanism under Section 54(3) of the CGST Act allows claims where the rate on inputs exceeds the rate on outputs. If your product moved from 18% to 5% under GST 2.0, and your inputs remain at 18%, you should evaluate whether you have an inverted duty refund entitlement.

Conversely, if your inputs moved from 12% to 18% and your outputs stayed at 18%, your ITC position improves because you are now recovering more credit per rupee of input cost.

Walk through each input-output pair in your supply chain from 22 September 2025. Do not assume your old ITC position carries forward unchanged.

Contracts, pricing, and your obligations

Many commercial contracts include clauses that tie the price to an identified GST rate: “price is Rs X plus GST at 18%” or “inclusive of GST at 12%”. When the underlying rate changes, those contracts create ambiguity. Does the price adjust automatically? Does the GST-inclusive figure stay fixed with the supplier absorbing or benefiting from the difference? Does the contract need a formal amendment?

The answer depends on how the clause is drafted. Contracts with a price-exclusive-of-tax structure are generally cleaner, because the applicable tax follows whatever the law says and the buyer pays the statutory amount on top. Contracts with a GST-inclusive price are more exposed to rate changes, because the parties may have different understandings of how the inclusive amount splits between consideration and tax.

From 22 September 2025, you should:

  • Review all long-term supply contracts and service agreements for clauses that reference a specific GST rate.
  • Determine whether the contract provides for automatic price adjustment on rate change, requires mutual amendment, or is silent.
  • Issue revised rate cards to customers if you quote prices inclusive of GST.
  • For contracts where the rate changed and the clause is ambiguous, take legal advice on your position before unilaterally adjusting the invoice.
  • Check whether any government or PSU contracts have separate tax adjustment provisions under the General Conditions of Contract or tender terms.

The Income Tax Act 2025 changes may also have an indirect bearing on pricing models for certain businesses, particularly where the GST and income tax treatment interact on the same transaction.

Classification disputes and how courts read them

One of the stated goals of GST 2.0 is to reduce classification disputes. Fewer slab boundaries mean fewer grey zones where a product could plausibly sit at either of two rates. That is the theory. The practice will take time to confirm.

Classification disputes do not disappear simply because the number of slabs decreases. The boundary between 5% and 18% will attract its own set of contested cases. What counts as an “essential” mass-use item deserving the lower rate? At what point does a product cross into the 40% demerit category? These questions will be litigated, advanced ruled upon, and resolved through CBIC circulars and eventually court decisions.

Even before the 56th Council meeting, a substantial body of GST case law had accumulated on classification: how to read HSN headings, how to treat composite and mixed supplies, how to apply the principle of specific versus general entries. That body of law does not become irrelevant overnight. The interpretive tools courts and tribunals have used (the principle that specific entries override general ones, the ejusdem generis rule, the rule against surplusage) continue to apply under the new structure.

The practical implication for you is this: do not rely solely on the apparent position of your product in the new slab structure without checking how the classification has been read by tribunals and courts. A product you assume is at 5% may have been placed by an advance ruling authority at 18% under a different tariff heading reading. That advance ruling may be from another state, may not be binding on you, but it signals a dispute risk.

Checking the good-law position on a GST classification before you file your return or issue your invoice is exactly the kind of due diligence that saves a reassessment later. See our guide on good law checking in India for how to evaluate whether a legal position holds up.

Practical steps for businesses from 22 September 2025

Here is a structured set of actions to take if you have not already done so. The effective date is 22 September 2025, which means returns filed for periods from that date onward should reflect the new rates.

Catalogue mapping: Go through every product and service in your ERP or billing system that was previously taxed at 12% or 28%. Each of those line items needs to be mapped to its new rate (5%, 18%, or 40%) under the GST 2.0 structure. This is the most labour-intensive part, and accuracy matters because a wrong rate on an invoice creates both a short-payment risk and an excess-ITC risk for your customer.

Billing software updates: Most accounting and invoicing software maintains a rate master. Update it from 22 September 2025. Ensure the HSN/SAC mapping in your software aligns with the rate master so that invoices generate with the correct rate automatically.

Price list and rate card revision: If you maintain published price lists, supplier price agreements, or customer rate cards that include GST-inclusive pricing, issue updated versions effective 22 September 2025. Communicate the change to customers and suppliers proactively.

ITC impact analysis: Identify all inputs where the rate changed. Map each input’s new rate against the rate on the output it is used to produce. Flag any inverted duty situations (input rate higher than output rate) and initiate the refund process if applicable.

Contract review: As described in the section above, review contracts for price-plus-GST clauses. Prioritise high-value, long-term contracts.

Advance rulings: If you have any open advance ruling applications that referenced the old slab structure, or if you received a ruling before 22 September 2025 that depended on the 12% or 28% rate, assess whether that ruling is now superseded or needs fresh consideration.

Return filing: For periods straddling 22 September 2025, ensure your GSTR-1 and GSTR-3B entries correctly split the tax on supplies made before and after the effective date at the respective old and new rates.

Staff training: Your accounts payable, accounts receivable, and compliance teams need to understand the new slab boundaries. A brief internal training session or a rate-change circular to relevant staff avoids inadvertent errors in day-to-day invoicing.

Where to find authoritative guidance

For any GST question, the hierarchy of authoritative sources runs as follows:

CBIC (cbic-gst.gov.in): The Central Board of Indirect Taxes and Customs is the nodal authority for GST administration. Notifications, circulars, and instructions from CBIC are the primary statutory and quasi-judicial guidance. The notifications implementing the GST 2.0 rate changes are available on the CBIC portal.

GST Portal (gst.gov.in): The official portal for filing, registration, payment, and compliance. It also publishes FAQs and rate finders that are updated to reflect current rates.

PIB (Press Information Bureau): The official announcement of the 56th GST Council’s decisions, including the slab rationalisation approved on 3 September 2025, was carried by PIB. For understanding the stated rationale behind a change, PIB releases are useful primary sources.

GST Council Secretariat: The council’s decisions are formally communicated through press releases and subsequently through CBIC notifications. The notifications are the legally operative documents; the press releases give context.

Advance rulings: The Authority for Advance Rulings (AAR) and the Appellate Authority for Advance Rulings (AAAR) in each state issue rulings on specific fact situations. These are binding only on the applicant but are persuasive for similar fact situations.

High Courts and the Supreme Court: GST classification disputes reach the High Courts through writ petitions challenging advance rulings or show-cause notices. Supreme Court decisions on the interpretation of GST provisions are binding precedent.

Niyam is a legal AI built for India, grounded in 72,000+ Indian judgments, and designed to help you find how courts and tribunals have actually read a legal provision, not just what the text says. Every answer carries a citation you can open and verify. That is particularly relevant when you are trying to understand the judicial track record on a GST classification before committing to a position. You can reach us at [email protected].

For guidance on avoiding AI-generated citation errors in legal research, see our post on AI legal research in India and hallucination avoidance.

Frequently asked questions

When exactly did GST 2.0 take effect?

The GST 2.0 slab rationalisation took effect on 22 September 2025. The 56th GST Council meeting on 3 September 2025 approved the changes, and they were operationalised through CBIC notifications. All GST returns covering periods from 22 September 2025 onward should reflect the new rates. Supplies made before that date continue to be governed by the rates that applied at the time of supply.

What happened to the 12% GST slab?

The 12% slab was removed as part of GST 2.0. Items that previously attracted 12% GST have been redistributed, with many moving to 5% (particularly essentials and mass-use goods) and others moving to 18% (the standard slab). The exact destination of each item depends on the CBIC notification and the relevant HSN/SAC heading. You should verify the new rate for each item in your catalogue rather than applying a general rule.

What happened to the 28% GST slab?

The 28% slab was also removed under GST 2.0. In its place, a 40% special rate applies to select luxury and sin/demerit goods, such as aerated drinks and premium cars. The 40% rate replaces the earlier combination of the 28% base rate and the compensation cess for the goods covered by this category. Items that were at 28% but are not classified as luxury or demerit goods under the new structure have moved to 18%.

Is there still a nil or exempt category under GST 2.0?

Yes. The 0% (nil/exempt) category continues under GST 2.0. Certain essentials that have historically been outside the GST net or exempt from it remain so. The GST 2.0 rationalisation focused on simplifying the taxable slab structure; it did not eliminate the exempt category.

Why is the new special rate 40% and not something lower?

The 40% rate for luxury and demerit goods reflects the policy intent of maintaining a meaningfully higher burden on those categories even after the removal of the 28% slab. Before GST 2.0, the effective rate on demerit goods was often higher than 28% when the compensation cess was included. For the categories where the compensation cess was withdrawn from 22 September 2025, such as aerated drinks and motor vehicles, the 40% rate consolidates the base rate and the cess-equivalent into a single figure, which simplifies administration while keeping the tax burden elevated. Tobacco and related products are the main exception: they continue under 28% plus cess until the cess-loan liabilities are discharged.

Does GST 2.0 affect services or only goods?

GST 2.0 is primarily discussed in the context of goods, but the rate structure applies to services as well. Services that previously attracted 12% or 28% are also affected. The move to 5% and 18% as the two main slabs applies across both goods and services. If you provide services that were taxed at 12%, you should verify whether those services now fall in the 5% or 18% band under the new structure.

My supplier is still issuing invoices at 12% after 22 September 2025. What should I do?

If your supplier issues an invoice at 12% for a supply made after 22 September 2025, and the correct rate under GST 2.0 is different (say 5% or 18%), there is a mismatch. You should bring it to your supplier’s attention promptly. From an ITC perspective, you can claim credit only on the tax that was lawfully charged. If the rate is wrong, the invoice may need to be corrected through a credit note and revised invoice. Do not simply claim ITC on an invoice bearing an incorrect rate without resolving the underlying discrepancy.

How does GST 2.0 affect businesses that claim an inverted duty refund?

Businesses with an inverted duty structure (where input tax rate exceeds output tax rate) may see their position change under GST 2.0. Some businesses that previously had an inversion because inputs were at 18% and outputs at 12% may now find that both inputs and outputs are at 18%, eliminating the inversion. Others may find a new inversion if their inputs moved up to 18% while their outputs are at 5%. Review your input-output rate pairs and recompute your ITC and refund position from 22 September 2025.

What if my product classification was previously settled by an advance ruling at 12%?

An advance ruling is binding on the applicant and on the GST authorities in respect of the applicant for the specific transaction. A ruling issued under the old rate structure does not automatically lapse, but if the legal rate for the product changed on 22 September 2025, the applicable rate changes regardless of what the ruling said. The ruling was always contingent on the law as it stood at the time. From the effective date of GST 2.0, the new statutory rate applies. If you are uncertain how your ruling interacts with the changed rate, consult a tax professional.

Will there be fewer classification disputes under GST 2.0?

Fewer slabs reduce the number of boundary disputes. Under the old system, the 5%-12% and 12%-18% thresholds each generated their own set of contested classifications. Under GST 2.0, those two intermediate boundaries are removed, so disputes that arose specifically from those thresholds should diminish over time. However, the 5%-18% boundary will generate its own disputes, as will the boundary between 18% and 40% for luxury and demerit goods. Classification disputes are a feature of any rate structure with multiple rates. The reform reduces the count of dispute zones, not the possibility of dispute.

How should I update my ERP for the rate change?

Start with your rate master table. Identify all line items currently mapped to 12% or 28%. For each item, determine the applicable rate under GST 2.0 (5%, 18%, or 40%) based on the CBIC notification and the HSN/SAC heading. Update the rate master from 22 September 2025 as the effective date. Ensure your invoice generation logic uses the supply date (or tax point) to select the correct rate, so that invoices for supplies before and after 22 September 2025 use the correct old and new rates respectively.

Do I need to update my GST registration for GST 2.0?

No change to your GST registration is required as a result of GST 2.0. Registration details (GSTIN, business details, address, HSN/SAC codes reported at registration) remain valid. The rate change affects your invoicing, ITC, and return filing, not your registration. If you deal in goods that move into the 40% demerit category and you did not previously handle such goods, you may want to note that in your internal records, but there is no separate registration requirement.

What is the 40% rate’s relationship to the old compensation cess?

Before GST 2.0, luxury and demerit goods attracted a 28% GST rate plus a compensation cess that varied by category. The cess was levied under the GST (Compensation to States) Act. The 40% special rate under GST 2.0 consolidates the earlier tax burden on covered goods into a single headline rate for those categories. The precise legal mechanics of how the cess legislation interacts with the new rate structure should be verified through CBIC notifications and any accompanying circulars, as the cess had its own statutory basis separate from the rate-setting power.

Can I pass on the rate reduction to customers if my product moved from 12% to 5%?

Yes, and under anti-profiteering provisions in GST law, you may in fact be required to pass on the benefit of a rate reduction to consumers. The National Anti-Profiteering Authority (NAA) was established to ensure that rate reductions are reflected in prices. If your output rate moved from 12% to 5%, and your costs have not changed, the reduction in tax collected should be passed through to the customer. Failure to do so has historically attracted anti-profiteering proceedings. Review your pricing policy in light of the rate change.

What is the GST Council and who makes the final rate decisions?

The GST Council is a constitutional body created under Article 279A of the Constitution of India. It is chaired by the Union Finance Minister and includes the state finance ministers (or their nominees). The council recommends GST rates, exemptions, and structural changes by a voting mechanism. The centre has one-third of votes and the states collectively have two-thirds. Council recommendations are operationalised through notifications issued by the central government under the CGST Act and by state governments under respective SGST Acts.

Where can I find the official CBIC notification for GST 2.0?

The official notifications implementing the GST 2.0 rate changes are available on the CBIC website at cbic-gst.gov.in. The GST portal at gst.gov.in also maintains an updated rate finder. The Press Information Bureau carried the announcement of the 56th GST Council’s decisions on 3 September 2025. Always refer to the notifications themselves (rather than press summaries) for the legally operative text.

My product has always been at 5% and is still at 5%. Do I need to do anything?

If your product remains in the 5% slab with no change in classification, your immediate compliance burden is minimal. However, it is still worth reviewing the CBIC notifications to confirm that the HSN heading under which your product is classified continues to map to 5% under the new schedule. In some cases, the schedule reorganisation accompanying the rate change may have moved entries between HSN headings even where the rate did not change for your specific product. Confirm the mapping rather than assuming continuity.

How does GST 2.0 interact with state-level VAT or other levies?

GST subsumed most central and state indirect taxes when it was introduced in 2017. It does not interact with state VAT for most goods because VAT on goods subsumed into GST. Certain items (notably petroleum products and alcohol for human consumption) remain outside GST and continue to attract state VAT and central excise separately. GST 2.0 does not change the boundary of what is inside and outside GST. If your product is in a category still governed by VAT or excise (such as petroleum), GST 2.0 does not directly affect your state tax position on those items.

Is this connected to the four labour codes or other recent regulatory changes?

GST 2.0 is a tax reform and is distinct from the labour code consolidation. The four labour codes restructure employment regulation, not indirect tax. The two reforms are independent. However, for businesses that are managing simultaneous compliance changes across tax and employment law, it is worth mapping out all effective dates and implementation obligations in one consolidated compliance calendar to avoid gaps.

Your starting point should always be the CBIC notifications and circulars, supplemented by the GST portal’s rate finder and the applicable HSN/SAC master. For understanding how a classification has been contested and decided, you need to look at advance rulings (AAR/AAAR) and High Court decisions. Reading court decisions requires knowing whether a ruling still holds good law, whether it was followed in subsequent cases, and whether a contrary position was taken elsewhere. Our guide on AI legal research and hallucination avoidance explains how to approach this kind of research carefully.

Key takeaways

The structure changed fundamentally. The 12% and 28% slabs are gone from 22 September 2025. The core GST structure is now 0%, 5%, 18%, and a 40% special rate for luxury and demerit goods.

Effective date is 22 September 2025. Returns and invoices for supplies from that date onward must reflect the new rates. Supplies made before 22 September 2025 continue to be governed by rates as they stood on the date of supply.

Your catalogue needs remapping. Every item previously at 12% or 28% needs a confirmed new classification. Do not assume without verifying against CBIC notifications and the applicable HSN/SAC heading.

ITC positions shift. Some businesses will gain from higher ITC on inputs now at 18%. Others may face inverted duty structures if outputs moved to 5% while inputs remain at 18%. Compute your new ITC position item by item.

Contracts with specific rate references need review. Price-plus-GST clauses that cited the old rate create ambiguity. Review and update as needed.

Classification disputes will continue at new boundaries. The line between 5% and 18%, and between 18% and 40%, will attract its own body of contested interpretations. Check the judicial and advance ruling record before committing to a position on any borderline item.

Authoritative sources are CBIC (cbic-gst.gov.in), the GST portal (gst.gov.in), and PIB for the 56th Council announcement. For case law, the AAR/AAAR database, High Court judgments, and the Supreme Court’s GST decisions are the right resources.

If you want to check how a GST classification has been read by Indian courts before relying on it, start for ₹100 on Niyam. Every answer is grounded in 72,000+ Indian judgments and comes with a citation you can open and verify.

Questions? Write to [email protected].