18% GST Invoicing & Tax Math Engine

The Cora GST Math Engine handles all tax calculations required for Indian service businesses and commercial studios:

• Intra-State (Same State): Splits 18% GST into 9% CGST + 9% SGST.
• Inter-State (Different State): Applies unified 18% IGST.
• SAC Codes: Pre-seeded with SAC 998381 (Commercial Photography & Film Production Services).
• Pro-Forma & Tax Invoices: Generate 50% advance pro-formas and final tax invoices with instant payment links.