You must have the supplier’s valid GST number to claim the Input Tax Credit (ITC).
If the supplier is from a different state, replace CGST/SGST with IGST (18%) . Tax Calculation Formula Base Amount: Total Invoice Value / (1 + Tax Rate) GST Amount: Base Amount × 18% CGST/SGST: GST Amount ÷ 2
This is the total invoice value you owe the supplier. Important Checklist
This represents the base value of the goods (tax-exclusive).
Ensure the correct code is mentioned to justify the 18% rate.