GST Invoicing Method for Service Upgrade

Hi Avijit,

Regarding your service upgrade invoicing under GST, here’s my take:

Current method (Credit note + fresh invoice) — Correct approach:

• When a customer upgrades from a Rs. 100 package (for 1 year) to Rs. 200 package (for 1 year) after 6 months, the balance to be paid is Rs. 150 (for remaining 6 months).

• The right GST-compliant approach is to issue a credit note for the unused portion of the old package (Rs. 50 + GST) and then raise a new invoice for the full upgraded package amount (Rs. 200 + GST).

• This method ensures proper accounting of earlier invoice and the adjustment of value and tax.

Proposed method (Invoice only for Rs. 150 + GST) — Not advisable:

• Simply invoicing Rs. 150 + GST without issuing a credit note will not account for the reversal of the old service value.

• This may cause mismatch in GST records and compliance issues since the original invoice of Rs. 100 + GST remains unadjusted.

• GST law requires that any reduction or cancellation of supply value should be documented via credit notes/debit notes (Section 34 of CGST Act).

Summary:

• Stick to your current method: issue credit note for Rs. 50 + GST against old invoice, then invoice Rs. 200 + GST for upgraded package.

• This keeps your GST records clean and compliant.

• Avoid skipping credit notes, as it can cause issues during reconciliation and audits.