Under GST for GTA supplier there were two GST rates
option 1 : GST @ 5% without input credit option 2: GST @ 18% with input credit
Hence you may receive invoices at 5% or 18% from your vendors.
However whether 5% or 18% charged in invoice you are eligible for input credit in both cases please show the same in all other ITC of eligible ITC of GSTR-3B