GST returns since July 2019.

Yes, you can get benefit of late fee waived.

The official notification not yet come. Wait for it... We have time till sep 2020

@ Mr Rajkumar Patel & Mr David.,

As per above said replies Is waiver of late fee available for JULY-2019 GST RETURNS...??

Definately SIR, It is recommended by council committee to waive late fee for GSTR-3B

Dear Rajkumar , it's only the recommendation & NOT notified till date.
So it is Applicable/effective only when It is notify by council by issuing Notification.

@ HR consult : As of today the late fee is applicable as per law , so I would suggest you to wait for govt. to notify the same by issuing Notification & most probably at end this month it's likely to be notified.

You can get the benefit of not paying late fee if the recommendations get notified. Currently waiver of late fee is just recommended by the Council but it is not yet notified. If it does not get notified then you will have to pay late fees whether you file now or later.