GST ITC computation method is changed. It has become super easy to find whether your supplier has uploaded your purchases invoice in his GSTR 1. Earlier you need to search multiple GSTR 2A in back dates to find out but now it is so easy by introduction of new auto populate GSTR 2B. Therefore it simply means if your invoice is shown either in GSTR 2A or in GSTR 2B you can claim credit ofcourse subject to section 17. We have made one tax excel calculator where it becomes super easy to compute your gst itc.