Tax Consultant
1375 Points
Posted on 19 June 2026
Inverted duty structure refund under Section 54(3) of the CGST Act applies when the GST rate on your inputs is higher than the rate on your outward supplies, causing ITC to accumulate.
The refund formula is: Refund = (Turnover of inverted rated supply / Adjusted total turnover) x Net ITC, minus tax paid on such inverted rated supplies.
Steps to claim the refund:
1. Log in to the GST portal and go to Refunds, then select Application for Refund and choose Refund on account of ITC accumulated due to inverted tax structure.
2. Fill Form RFD-01 for the relevant tax period.
3. The portal will auto-populate ITC and turnover from your filed GSTR-3B and GSTR-1. Verify these match your books.
4. Attach supporting documents: purchase invoices (showing higher input GST rate), sales invoices, and a CA certificate if refund exceeds Rs 2 lakh.
5. Timeline: the officer must issue Form RFD-04 (provisional order) within 7 days and final order within 60 days from the date of complete application.
Common rejection reasons: mismatch between ITC in GSTR-3B and GSTR-2B, incorrect turnover figures, or supplies falling under the notified restricted category (petroleum, cement, automobiles , refund not allowed for these).
This [GST export refund and inverted structure guide](https://taxgarden.in/blog/gst-refund-exporters-lut-bond-rfd-01-guide) has the RFD-01 walkthrough with screenshots.