GST ITC-4 Form Explained Form GST ITC-04, prescribed under Rule 45(3) of the CGST Rules, is a mandatory declaration filed by a principal manufacturer to report the movement of inputs and capital goods sent to and received back from a job worker. It tracks inventory across all stages, including transfers between job workers and direct supplies made from a job worker's premises. The form captures key compliance details, such as the job worker's GSTIN, delivery challan numbers and dates, item descriptions, quantities, taxable values, and applicable tax rates. Understanding Job Work Under GST Rules Under Section 2(68) of the CGST Act, 2017, job work means any treatment or process undertaken by a person on goods belonging to another registered person. The person carrying out such treatment or process is referred to as the job worker. Who Must File Form GST ITC-04? A registered principal sending inputs or capital goods to a job worker must furnish the prescribed information in Form G...