GSTR3B

You only have to fill in your taxable values of sales/income along with tax figures on them

NO

A summary return (single page) form in GSTR-3B will required to be filed on self-declaration basis for first 2 month i.e. July and August by 20th day of next month. I.e. for the month of July, a summary return needs to be filed by 20th August after paying appropriate taxes, and for the month of August, the same needs to filed by 20th September.

Instructions to file form GSTR-3B

1) Value of Taxable Supplies = Value of invoices + value of Debit Notes – value of credit notes + value of advances received for which invoices have not been issued in the same month
– value of advances adjusted against invoices.

2) Details of advances as well as adjustment of same against invoices to be adjusted and not shown separately

3) Amendment in any details to be adjusted and not shown separately.