GST 2.0 Reforms 2026: New Tax Slabs Explained for Exporters & Businesses

India's GST framework saw its biggest overhaul since 2017 when the 56th GST Council meeting approved sweeping changes now widely referred to as GST 2.0. If you're still pricing products, raising invoices, or reviewing contracts based on the old four-slab structure, here's what actually changed and why it matters for your business.

What Changed Under GST 2.0

The GST Council simplified India's long-standing multi-slab system — 0%, 5%, 12%, 18%, and 28% — down to a leaner structure built around two primary slabs: 5% and 18%, with a separate 40% rate reserved for select luxury and "sin" goods such as tobacco products, pan masala, and premium vehicles. The changes took effect from 22 September 2025, and by 2026 they've reshaped pricing, invoicing, and compliance across nearly every industry.

Where Did the 12% and 28% Slabs Go

Most goods that were previously taxed at 12% moved down to the 5% slab, while the bulk of goods that sat at 28% shifted to 18% — with a smaller set of luxury and demerit items moving to the new 40% slab instead. Daily essentials, packaged food, agricultural goods, and healthcare equipment were largely routed into the 5% category, while consumer electronics, compact cars, and similar goods that were previously taxed higher now generally fall under 18%.

Why This Matters for Exporters and B2B Businesses

Even though exports remain zero-rated under GST, the slab changes still affect exporters in a few important ways:

• Input costs shift — raw materials and packaging that moved slabs change your input tax credit calculations
• HSN code mapping needs review — every HSN code your business uses should be checked against the new rate notification, since assuming the old rate can lead to invoicing errors
• B2B contracts need updating — supply agreements referencing specific tax rates (especially anything that moved from 12% to 18%) may need renegotiation or amendment
• Domestic sales pricing — if you also sell domestically alongside exporting, your pricing and margin calculations need to reflect the new applicable slab

What Businesses Need to Do Now

Any invoice issued using an outdated 12% or 28% rate after the effective date is technically incorrect and can attract penalties. Practically, this means reviewing your HSN-to-rate mapping across your product catalogue, updating your billing or ERP software's tax tables, and checking whether any pending B2B contracts need formal amendment to reflect the new rate on the goods involved. For products with genuinely ambiguous classification, matching against the official rate notification for your specific HSN or SAC code is safer than assuming based on a similar product's category.

GST 2.0 was designed to reduce classification disputes over the long run, but the transition period rewards businesses that proactively review their rate mappings rather than waiting for a notice from the department.