finance2026-07-163 min read

18% GST Calculation with Real Business Examples

Master the calculation of 18% GST on services and products in India. See CGST and SGST splits for clean business invoices. Read now!

The 18% tax slab is the most common GST rate in India, applicable to software services, telecom, restaurants, and various industrial items.

CGST and SGST Splits For intra-state transactions, the 18% tax is split equally: - CGST (Central GST): 9% - SGST (State GST): 9%

For inter-state trades, a single IGST (Integrated GST) of 18% is applied.

Check invoice splits easily with our specialized GST Calculator.