Here are the GSTR 9 (Annual Return ) Due dates for registered person  other than an Input Service Distributor, a person paying tax under section 51 or section 52, a casual taxable person and a non-resident taxable person. For Taxpayer opting to pay Tax under Section 10 of CGST Act ( Composition Scheme) GSTR 9A has to be filed Refer GSTR 9A Due Date

Order No 03/2018 Central Tax Dated 31st December 2018 : GST Annual Return &; Audit Date for FY 2017-18 Extended to 30.06.2019 : GSTR-9, FORM GSTR-9A , GSTR 9C

Other GST Returns Due Date