Business & Freelance
Invoice Tax Calculator - GST Breakdown | FinanceMetricX
Calculate invoice totals with CGST/SGST split for all standard GST rates. Add quantity and discount for accurate billing.
Base price per unit or service charge
Number of items or service units
Percentage discount on subtotal
How It Works
Invoicing with GST
If your annual turnover exceeds ₹20 lakh (₹10 lakh for special category states), GST registration is mandatory. Every invoice must show the GST amount separately, split into CGST and SGST for intra-state sales.
Which GST Rate Applies?
- 18% — Most professional services (IT, consulting, design, marketing)
- 12% — Construction, transport, some food services
- 5% — Restaurant services (non-AC), some goods
- 28% — Luxury goods, cement, automobiles
Input Tax Credit
As a registered business, you can claim ITC on GST paid for business purchases (laptop, software subscriptions, office rent). This reduces your net GST liability. Maintain proper records and file returns on time to claim ITC.
Frequently Asked Questions
GST registration is mandatory if your annual service turnover exceeds ₹20 lakh (₹10 lakh for special category states). Once registered, you must charge and collect GST on all invoices at the applicable rate for your service category.
Most professional services (IT, consulting, design, writing, marketing) fall under 18% GST. Some educational services may qualify for exemption. Check your specific HSN/SAC code to confirm the applicable rate.
For clients in the same state, GST splits equally into CGST (Central) and SGST (State). For example, 18% GST = 9% CGST + 9% SGST. For inter-state clients, you charge IGST instead, which is the full GST amount going to the central government.