While responding to an RTI Application, the Good and Service Tax Network (GSTN) shared information that only 50% of taxpayers have successfully furnished their GSTR-9 and GSTR-9C.
As per the information provided by the Central Public Information Officer (CPIO) the total number of registered taxpayers who are liable to file GSTR-9 & 9C (2 crores) for the Finance Year 2017-18 was 13,24,617.
It was also mentioned that the percentage of GSTR non-filing for GSTR-9 
A simple guide to GSTR 9 (GST annual return form) online filing procedure with due dates. We attached all screenshots and divided into 19 sections. Read more during the financial year 2017-18, 2018-19 & 2019-20 is 26.35% and for GSTR-9C is 30.80%.
For the Financial Year 2018-19, the number of taxpayers who are responsible to file GSTR-9 was 18,27,308 and for GSTR- 9C was 10,27,322. Out of which only 10,20,994 liable taxpayers have filed their GSTR-9 and 5,25,489 taxpayers have filed their GSTR-9C 
Get the easy guide to GSTR 9C along with complete online return filing process. GSTR 9C is a GST audit form for taxpayers having turnover more than 2 crores. Read more on or before December 31, 2020.
The Central Public Information Officer (CPIO) further added that the percentage of non-filers of GSTR-9 and 9C for the year 2018-19 was 44.13% and 48.85% respectively. Additionally, only 3,814 taxpayers out of 16,41578 have filed GSTR-9 for the FY 2019-20.
It is also stated that only 56 taxpayers out of 886914 have furnished their GSTR-9 for the Financial Year 2019-20 in the given extended time period.
