# What Is an Inverted Tax Structure and Who Can Claim a Refund?

**Category:** GST | **Published:** 2026-06-26 | **Last reviewed:** 2026-06-26 | **Author:** Mrs. Swapna Patel

An inverted tax structure is where the GST rate on your inputs is higher than the GST rate on what you sell, so input tax credit piles up faster than you can use it. Section 54(3) of the CGST Act lets a business claim a refund of that unutilised credit, with the amount capped by the Rule 89(5) formula. The refund covers credit on input goods, not input services, and certain notified supplies are barred from it altogether.

> **Myth:** If GST on your raw materials is higher than the GST you charge, the extra credit is simply lost.
>
> **Fact:** Under [Section 54(3) of the CGST Act](https://www.cbic.gov.in/htdocs-cbec/gst/cgst-act), an inverted tax structure lets you claim a refund of the unutilised input tax credit, worked out by the Rule 89(5) formula and subject to a list of excluded supplies.

## What is an inverted tax structure?

> **Short answer:** It is where the GST rate on your inputs is higher than the rate on your output, so under [Section 54(3)](https://www.cbic.gov.in/htdocs-cbec/gst/cgst-act) input tax credit accumulates faster than it can be set off.

Take a maker whose raw materials are taxed at 18 percent but whose finished product is taxed at 5 percent. On every sale, the credit earned on inputs is larger than the tax collected on the sale, so a balance of unused credit builds up month after month. That stranded credit is the problem an inverted-duty refund exists to release.

## Who can claim the inverted-duty refund?

> **Short answer:** A registered business carrying unutilised credit due to the rate gap can claim under [Section 54(3)](https://www.cbic.gov.in/htdocs-cbec/gst/cgst-act), unless its supply is on the barred list in [Notification 5/2017 – Central Tax (Rate)](https://www.cbic.gov.in/htdocs-cbec/gst/cgst-rate-notfns-2017).

- The credit must have accumulated specifically because input tax rate is higher than output tax rate, not for any other reason.
- Certain notified supplies are excluded from the refund even when the rate is inverted, so check the barred list first.
- Where output is nil-rated or fully exempt rather than lower-rated, different rules apply, so the inverted-duty route may not fit.

## How is the refund amount worked out?

> **Short answer:** By the formula in [Rule 89(5)](https://www.cbic.gov.in/htdocs-cbec/gst/cgst-rules-as-amended), which ties the refund to the share of turnover from inverted-rated supplies and limits it to credit on input goods.

- The formula scales the accumulated credit by the proportion of turnover that comes from the inverted-rated supply.
- It refunds credit on input goods. Credit on input services is generally outside the inverted-duty refund.
- The exact formula has been amended before, so apply the version in force for the refund period you are claiming.

## Why does an inverted structure matter to cash flow?

> **Short answer:** Because unclaimed credit is cash locked in the GST ledger, and the Section 54(3) refund is how a business gets that working capital back.

- Without the refund, the credit balance grows each period and ties up money the business could otherwise use.
- Filing the refund converts a paper credit into cash in the bank account.
- Clean tax invoices for your purchases are what make the input credit claimable in the first place.

**[Generate a GST tax invoice in 60 seconds](https://hrareceipt.in/pakka-bill)**

## Primary sources

- [Section 54(3), Central Goods and Services Tax Act 2017 — CBIC](https://www.cbic.gov.in/htdocs-cbec/gst/cgst-act) — Refund of unutilised input tax credit where credit accumulates because input tax rate exceeds output tax rate.
- [Rule 89(5), Central Goods and Services Tax Rules 2017 — CBIC](https://www.cbic.gov.in/htdocs-cbec/gst/cgst-rules-as-amended) — Formula for the maximum refund of input tax credit in an inverted duty structure.
- [Notification No. 5/2017 – Central Tax (Rate) — CBIC](https://www.cbic.gov.in/htdocs-cbec/gst/cgst-rate-notfns-2017) — Rate notification listing the supplies on which the inverted-duty refund of accumulated credit is not allowed.

## Related

- [What is input tax credit (ITC) under GST](https://hrareceipt.in/answers/what-is-input-tax-credit-itc)
- [Exempt vs nil-rated vs zero-rated supply under GST](https://hrareceipt.in/answers/exempt-vs-nil-rated-vs-zero-rated-supply-gst)
- [What is an LUT — issuing export invoices without GST](https://hrareceipt.in/answers/what-is-lut-letter-of-undertaking-gst-export)
- [What is a pakka bill — the GST invoice that counts as valid](https://hrareceipt.in/answers/what-is-a-pakka-bill)

---

*Source: [What Is an Inverted Tax Structure and Who Can Claim a Refund?](https://hrareceipt.in/answers/inverted-tax-structure-gst-refund-section-54) — HRAReceipt.in*
*This Markdown mirror is published for AI-crawler ingestion. The canonical HTML page is the definitive version.*