CBIC notifies applicability of CGST (Amendment) Act, 2018 with effect from 1st day of February, 2019 vide Notification No. 02/2019 – Central Tax Dated 29th January, 2019.

Section 49A has been inserted by Section 21 of CGST Amendment Act 2018

Notwithstanding anything contained in section 49, the input tax credit on account of central tax, State tax or Union territory tax shall be utilized towards payment of integrated tax, central tax, State tax or Union territory tax, as the case may be, only after the input tax credit available on account of integrated tax has first been utilized fully towards such payment
Subsection 5 of Section 49 of CGST Act 2017 speaks about manner of utilising Input Tax Credit (ITC) for payment of GST output Tax liability, e.g IGST can be Set off against IGST and then CGST and SGST, CGST can be set off against CGST and then against IGST, and SGST can be set off against SGST and then against IGST. Section 49A Over Rules complete Section 49

Section 49A Over Rules complete Section 49
Impact of amendment
Government has changed the order of setoff by introducing section 49A w.e.f 1st February 2019 and now IGST Credit should be set off fully before taking setting of CGST or SGST Credit.