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GST7 min readFeb 02, 2026

GST Billing Software Guide


GST Compliance for Retailers

Since the introduction of the Goods and Services Tax (GST) in India, businesses are legally required to file tax returns and issue structured tax invoices. Doing this manually or using incorrect invoice templates can lead to hefty penalties and compliance audits.

Elements of a Compliant GST Invoice

A standard retail tax invoice must include:

  • The merchant's name, store address, and registered GSTIN number.
  • A unique sequential Invoice Number.
  • HSN codes for all items in the checkout cart.
  • Clear breakdown of CGST (Central GST) and SGST (State GST) for local sales, or IGST for inter-state trades.

Dynamic GST Tax Slabs

Different categories of goods fall under different tax brackets: 0%, 5%, 12%, 18%, or 28%. Your billing terminal must allow you to select the appropriate GST percentage during the sale or assign it pre-emptively in the product catalog. Modern POS systems calculate these breakdowns automatically, making filing tax returns stress-free.

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