Indirect Tax Laws · Refunds

Unjust Enrichment and Consumer Welfare Fund under GST Refunds

Updated 5 October 2026

Unjust enrichment means you cannot keep a refund of GST that you already recovered from your customer. Such a refund is credited to the Consumer Welfare Fund. It is paid to you only if the incidence of tax was not passed on, or the case falls in a Section 54(8) exception, such as exports or inverted duty ITC.

Understand Unjust Enrichment and Consumer Welfare Fund

A refund claim says, "the government took tax from me that it should not have kept." But in GST, the supplier usually collects tax from the buyer and only deposits it. If the supplier recovered the tax from the buyer and then also gets the refund, the supplier gains twice. This is unjust enrichment. The principle was settled by the Supreme Court in Mafatlal Industries v. Union of India for indirect taxes, and GST gives it statutory form in Section 54.

The test is incidence of tax. Ask who finally bore the tax. If the claimant passed it on to the buyer through the price or invoice, the claimant has no right to the money. If the claimant bore the tax from their own pocket, the refund is theirs.

When the incidence was passed on, the refund is not given to the applicant. Under Section 54(5), the proper officer sanctions the refund, but a refund that is not payable to the applicant under Section 54(8) is credited to the Consumer Welfare Fund. Section 57 of the CGST Act provides for the constitution of the Fund, and Section 58 deals with its utilisation for consumer welfare as prescribed (Rule 97 also covers the Fund). The applicant gets nothing from that amount, even though the claim was valid in law.

Section 54(8) lists the cases where the refundable amount is paid to the applicant instead of the Fund. The clause letters run (a) to (f), in this order: (a) refund of tax paid on export of goods or services or both, or on inputs or input services used in making such exports, (b) refund of unutilised ITC under Section 54(3) (for example, on zero-rated supplies or an inverted duty structure), (c) refund of tax paid on a supply that was not provided, wholly or partly, and for which no invoice has been issued, or where a refund voucher has been issued, (d) refund of tax in pursuance of Section 77 (tax wrongly paid as CGST/SGST instead of IGST, or the reverse), (e) tax, interest or any other amount paid by the applicant, if the applicant did not pass on the incidence of such tax and interest to any other person, and (f) tax or interest borne by a class of persons notified by the Government on the recommendation of the Council.

Note that clause (e) is the incidence test itself. It is not a separate exception in addition to that test. Clauses (a) to (d) and (f) are paid to the applicant on their own terms. For any other refund, the applicant gets the money only if clause (e) is met, that is, only if the incidence was not passed on. Otherwise Section 54(5) routes it to the Fund. The burden of proof is on the applicant, who must give documentary or other evidence that the incidence was not passed on.

Key rules to remember

Core rule: Refund claimed → incidence passed on? Yes → Consumer Welfare Fund | No → applicant; The test is who bore the tax in substance, not who deposited it with the government.
Fund: Credit to the Fund: Section 54(5) for a refund not payable to the applicant under Section 54(8), read with Section 57 (constitution) and Section 58 (utilisation), CGST Act; see also Rule 97; Section 54(5) sanctions the refund and credits it to the Fund where it is not payable to the applicant under Section 54(8). Section 57 constitutes the Fund and Section 58 deals with its utilisation for consumer welfare.
Exceptions to the Fund (Section 54(8)): Paid to applicant: (a) export of goods or services or both, and inputs/input services used for such exports, (b) unutilised ITC under Section 54(3), (c) supply not provided (no invoice issued, or refund voucher issued), (d) refund under Section 77, (e) incidence not passed on (this is the incidence test itself), (f) notified class of persons; Learn the list with its clause letters (a) to (f), exactly as above. Clauses (a) to (d) and (f) are paid to the applicant regardless of any incidence test. Clause (e) is the incidence test, so it applies when no other clause fits.
Burden of proof: Applicant must produce documentary or other evidence that incidence was not passed on; This applies where the unjust enrichment test applies. Section 54(4) and Rule 89(2) require the evidence with the application. For a claim of ₹2,00,000 or more, a certificate from a chartered accountant or cost accountant is required. For a claim below ₹2,00,000, a self-declaration is enough. Neither is needed for export refunds or ITC refunds under Section 54(3), which fall outside the incidence test.
Limit: Claim within two years from the relevant date; Unjust enrichment is tested only on a claim that is otherwise valid and in time.

How to solve Unjust Enrichment and Consumer Welfare Fund questions

For any question on whether a refund goes to the applicant or to the Fund, run the facts through the same short test and then write the answer in provision-facts-conclusion form.

1Identify the nature of the refund: export, inverted duty, excess tax paid, supply not made, wrong head, or an order after appeal.
2Check if it is covered in Section 54(8)(a) to (d). If yes, state that the refund goes to the applicant and stop there.
3If not, apply the incidence test, which is Section 54(8)(e) itself. Ask whether the applicant passed on the incidence of tax to the buyer through the invoice, a price increase or a recovery. Look for words like "charged separately" or "recovered from customers".
4Check the evidence: invoices, price lists, a CA certificate or a declaration. Remember that the burden is on the applicant.
5Split the refund if the facts are mixed. The part passed on goes to the Fund, and the part borne by the applicant goes to the applicant.
6Conclude clearly with the amount and the recipient. Name the provisions: Section 54(8) for the exceptions and Section 54(5) for crediting the Fund, with Section 57 for the Fund itself.

Quickest way: Three-question filter

When to use it: Use this for MCQs and for short-note questions where time is tight.

Is it an export or ITC-based refund, a supply not provided or a Section 77 refund? If yes, the applicant gets it.
Otherwise, did the claimant recover the tax from the buyer? If yes, the Fund gets it.
If the tax was borne by the claimant, and this is shown by evidence, the applicant gets it under Section 54(8)(e). Compute any mixed case by splitting the amount.

Common mistakes in Unjust Enrichment and Consumer Welfare Fund

Sending every valid refund to the applicant.
Students think that a correct claim means payment to the claimant.
Fix: Add the second test. A valid claim is paid to the applicant only if the incidence was not passed on or it falls under Section 54(8).
Applying the unjust enrichment test to export refunds and ITC refunds.
Students apply the rule to every refund without checking the exceptions.
Fix: Exports, unutilised ITC refunds under Section 54(3), supply not provided and Section 77 refunds are paid to the applicant under Section 54(8).
Treating the payment of tax to the government as proof that the supplier bore the tax.
Students confuse who deposits the tax with who bears it.
Fix: Check whether the buyer paid the tax through the invoice or the price. If so, the incidence was passed on.
Giving the entire refund to the Fund when only part was passed on.
Students treat the question as all-or-nothing.
Fix: Split the refund by the facts: the passed-on part goes to the Fund and the remaining part to the applicant.
Forgetting the evidence requirement.
Students focus on the legal rule and ignore proof.
Fix: State that the applicant must produce documents or a certificate showing that the incidence was not passed on, as the Rules require.

Worked examples

Example 1

Ravi Traders sold goods worth ₹50,00,000 in a tax year and paid GST at 18%, charging the tax on its invoices. An appellate order later held that the correct rate was 12%. Ravi applies for a refund of the excess tax within two years from the date of the appellate order. It has not refunded any amount to its customers. Who gets the refund?

Show the solution

Provision: A valid refund claim is paid to the applicant only if it falls under Section 54(8)(a) to (d) or (f), or the incidence was not passed on (clause (e)). Otherwise, it is credited to the Consumer Welfare Fund under Section 54(5). Section 57 constitutes the Fund.
Time limit: The refund follows an appellate order, so the relevant date is the date of that order. A claim made within two years from it is in time, and the claim is valid.
Compute the excess tax: (18% − 12%) × ₹50,00,000 = 6% × ₹50,00,000 = ₹3,00,000.
Facts: Ravi charged GST at 18% on its invoices and has not refunded anything to customers, so customers bore the whole tax. The refund is not an export, ITC, supply-not-provided or Section 77 refund, and clause (e) is not met because the incidence was passed on.
Conclusion: The incidence was passed on, so unjust enrichment applies.
Note: The result depends on the facts. If Ravi had actually reimbursed some customers, Ravi would not be gaining on that part, because the refund would only make good what it paid out. But a credit note alone does not make that part Ravi's refund. Ravi would have to prove with documents that the incidence was not passed on for that part. Any part not so proved is credited to the Fund. On the facts given, nothing was reimbursed, so the amount stays ₹3,00,000.

Answer: The refund of ₹3,00,000 is valid and in time, but it is credited to the Consumer Welfare Fund under Section 54(5). It is not paid to Ravi Traders, because Ravi passed on the incidence of tax to its customers. If Ravi had reimbursed customers, it would still have to prove with evidence that the incidence was not passed on for that part before receiving it.

Exam tips

Write the Section 54(8) exceptions as a list in the answer. This often earns marks for the provision.
In case-scenario MCQs, look for words like "charged to customers", "recovered from buyers" or "borne by the supplier". They decide the answer.
If an MCQ involves exports or inverted duty ITC, choose the option that pays the applicant.
In mixed-fact questions, compute the split and show the amount against each recipient.
Write the conclusion in one sentence, naming the recipient and the section, such as Section 54(5) for crediting the Fund.

Practice questions from Refunds

Unjust Enrichment and Consumer Welfare Fund: frequently asked questions

What is unjust enrichment in a GST refund?

It is the principle that a taxpayer cannot keep a refund of tax that was already recovered from the buyer. In GST, such a refund does not go to the applicant. It goes to the Consumer Welfare Fund.

When is unjust enrichment not applicable in a GST refund?

It does not apply to the cases listed in Section 54(8): tax paid on exports and on inputs or input services used for them, unutilised ITC refunds under Section 54(3), tax on a supply not provided, refunds under Section 77, cases where the incidence was not passed on, and notified classes of persons. In these cases the refund goes to the applicant.

What is the Consumer Welfare Fund under GST?

It is a fund constituted under Section 57 of the CGST Act, with its utilisation dealt with in Section 58. Refunds that fail the unjust enrichment test are credited to it under Section 54(5), and it is used for consumer welfare as prescribed.

How does an applicant prove that the incidence was not passed on?

The applicant gives documentary or other evidence with the application, such as invoices. For a claim below ₹2,00,000, a self-declaration is enough. For a claim of ₹2,00,000 or more, a certificate from a chartered accountant or cost accountant is required.