Please let us know the due date for GSTR 3B and GSTR 1 for financial year 2017-18 and 2018-19 so that we can calculate interest payable and late fee

Reply— All due dates for filing GSTR-3B and GSTR-1 is available in quick search option. Click on the tab 'Quick search'  after that on the left hand side there is a option of 'filing of return', select the return GSTR-3B or GSTR-1 as the case may be, all due dates is available there.