Yesterday I had filed GSTR1 for the month of May 2018, but I am having one export invoice
Can I take this invoice details in next GSTR1 for the month of june 2018 or any other process, and we are having ITC Refund, at the time of refund claim we will have any problem regarding this invoice
11 June 2018
You could add the missing invoice in the return for the month of June 2018. However ITC refund claim would be for the month pertaining to May 2018.