As per Rule 89(2), The application under sub-rule (1) of rule 89 shall be accompanied by any of the following documentary evidences in Annexure 1 in Form GST RFD-01, as applicable, to establish that a refund is due to the applicant, namely:-
a) the reference number of the order and a copy of the order passed by the proper officer or an appellate authority or Appellate Tribunal or court resulting in such refund or reference number of the payment of the amount specified in subsection (6) of section 107 and sub-section (8) of section 112 claimed as refund;
b) a statement containing the number and date of shipping bills or bills of export and the number and the date of the relevant export invoices, in a case where the refund is on account of export of goods;
c) a statement containing the number and date of invoices and the relevant Bank Realisation Certificates or Foreign Inward Remittance Certificates, as the case may be, in a case where the refund is on account of the export of services;
d) a statement containing the number and date of invoices as provided in rule 46 along with the evidence regarding the endorsement specified in the second proviso to sub-rule (1) in the case of the supply of goods made to a Special Economic Zone unit or a Special Economic Zone developer;
e) a statement containing the number and date of invoices, the evidence regarding the endorsement specified in the second proviso to sub-rule (1) and the details of payment, along with the proof thereof, made by the recipient to the supplier for authorised operations as defined under the Special Economic Zone Act, 2005, in a case where the refund is on account of supply of services made to a Special Economic Zone unit or a Special Economic Zone developer;
f) a declaration to the effect that the Special Economic Zone unit or the Special Economic Zone developer has not availed the input tax credit of the tax paid by the supplier of goods or services or both, in a case where the refund is on account of supply of goods or services made to a Special Economic Zone unit or a Special Economic Zone developer;
g) a statement containing the number and date of invoices along with such other evidence as may be notified in this behalf, in a case where the refund is on account of deemed exports;
h) a statement containing the number and the date of the invoices received and issued during a tax period in a case where the claim pertains to refund of any unutilised input tax credit under sub-section (3) of section 54 where the credit has accumulated on account of the rate of tax on the inputs being higher than the rate of tax on output supplies, other than nil-rated or fully exempt supplies;
i) the reference number of the final assessment order and a copy of the said order in a case where the refund arises on account of the finalisation of provisional assessment;
j) a statement showing the details of transactions considered as intra-State supply but which is subsequently held to be inter-State supply;
k) a statement showing the details of the amount of claim on account of excess payment of tax;
l) a declaration to the effect that the incidence of tax, interest or any other amount claimed as refund has not been passed on to any other person, in a case where the amount of refund claimed does not exceed two lakh rupees:
Provided that a declaration is not required to be furnished in respect of the cases covered under clause (a) or clause (b) or clause (c) or clause (d) or clause (f) of sub-section (8) of section 54;
m) a Certificate in Annexure 2 of FORM GST RFD-01 issued by a chartered accountant or a cost accountant to the effect that the incidence of tax, interest or any other amount claimed as refund has not been passed on to any other person, in a case where the amount of refund claimed exceeds two lakh rupees:
Provided that a certificate is not required to be furnished in respect of cases covered under clause (a) or clause (b) or clause (c) or clause (d) or clause (f) of subsection (8) of section 54;
Refund Amount = (Turnover of zero-rated supply of goods + Turnover of zero-rated supply of services) x Net ITC ÷Adjusted Total Turnover
Where, -
A. "Refund amount" means the maximum refund that is admissible;
B. "Net ITC" means input tax credit availed on inputs and input services during the relevant period other than the input tax credit availed for which refund is claimed under sub-rules (4A) or (4B) or both;
C. "Turnover of zero-rated supply of goods" means the value of zero-rated supply of goods made during the relevant period without payment of tax under bond or letter of undertaking, other than the turnover of supplies in respect of which refund is claimed under sub-rules (4A) or (4B) or both;
D. "Turnover of zero-rated supply of services" means the value of zero-rated supply of services made without payment of tax under bond or letter of undertaking, calculated in the following manner, namely:-
Zero-rated supply of services is the aggregate of the payments received during the relevant period for zero-rated supply of services and zero-rated supply of services where supply has been completed for which payment had been received in advance in any period prior to the relevant period reduced by advances received for zero-rated supply of services for which the supply of services has not been completed during the relevant period;
E. "Adjusted Total turnover" means the turnover in a State or a Union territory, as defined under clause (112) of section 2, excluding –
• the value of exempt supplies other than zero-rated supplies and
• the turnover of supplies in respect of which refund is claimed under sub-rules (4A) or (4B) or both, if any, during the relevant period;
F. 'Relevant period' means the period for which the claim has been filed.