We have export sale in March 2018 without payment of tax and we have purchase goods for making export saleand paid CGST/ SGST on that purchase, we have fill export all details in GSTR 3B & GSTR 1 respectively . but we forget to mention input Tax Credit in GSTR 3B from march to may month then how i can get refund of GST such export.
03 July 2018
you can claim input credit for the month of April & May in GSTR3B for the month of July which is to be filed on or before 20th JUly, 2018. The ITC for the month of March, 2018 cannot claim because financial year changed