Inverted GST structure refund

Sakthivel K (GST / Accountant) (143 Points)

24 July 2019  
for a manufacturing unit

ITC rawmaterial cotton/cotton waste purch.is 5%
ITC on raw material cotton yarn purch. is 5%
ITC on raw material viscose yarn purch is 12%
ITC on m/cry spares purch is 18%

GST on sales of viscose fabric is 5%
GST on sales of Cotton fabric is 5%
GST on sales of manufactured CottonYarn is 5%

how to calculate the refund amount under inverted duty structure..

in the formula

net ITC means....
adjusted total turnover means...

please clarify