Tobacco GST Valuation: RSP Method Mandatory from Feb 2026

Auto-drafted from official sources and under review by CA Rajeev Ranjan. Verify against the original notification before you act.

What Changed

The government issued Notification No. 20/2025-Central Tax on 31 December 2025, making Retail Sale Price (RSP)-based valuation mandatory for certain notified tobacco goods under GST. This changes how the taxable value is calculated for these products, instead of transaction value, the RSP printed on the pack forms the basis for GST computation.

Alongside this, the e-invoicing system has been updated: TotItemVal validation errors will be suppressed for RSP-based invoices where the document date is on or after 1 February 2026. In plain terms, the portal will no longer throw a mismatch error when the line-item total doesn't reconcile the way it normally would, because RSP-based calculations follow a different logic.

Who Is Affected

This impacts:

• Manufacturers and suppliers of tobacco products that fall under the notified category
• Businesses generating e-invoices for these goods through the IRP (Invoice Registration Portal)
• ERP and billing software teams that need to update invoice generation logic for tobacco lines

If your business deals in tobacco goods and you raise e-invoices, you need to act before February 2026. Traders who are further down the supply chain but rely on accurate input tax credit should also stay informed, since the valuation method upstream affects the credit chain.

What You Should Do

Check whether your tobacco products are in the notified list. The notification specifies which goods are covered, refer to the official notification for the exact product categories, as the list determines whether this applies to you.

Update your invoicing system before 1 February 2026. Key steps:

• Configure your billing or ERP software to use RSP as the valuation base for covered tobacco goods
• Ensure your e-invoice JSON schema correctly reflects RSP-based line items so the suppressed TotItemVal validation doesn't mask other genuine errors
• Test invoice generation on the IRP before the go-live date

Train your accounts and compliance teams. The shift from transaction value to RSP can affect how staff raise invoices day-to-day. A quick internal briefing before the deadline avoids filing mistakes.

Consult your CA or tax advisor if you are unsure whether your specific products are notified or how to restructure your invoice template correctly.

Key Date to Note

Invoices with a document date before 1 February 2026 are not covered by the TotItemVal suppression, so existing processes remain in place until then.

Source: Official notification