GST Invoice Generator — CGST/SGST/IGST Compliant
Generate GST-compliant invoices with CGST/SGST/IGST split and HSN/SAC codes.
About this tool
Create GST-compliant invoices for your Indian business. Automatically splits tax into CGST+SGST for intra-state or IGST for inter-state transactions. Supports GSTIN validation, HSN/SAC codes, and all Indian states.
GST Invoice Requirements
A valid GST invoice must include: supplier's GSTIN, recipient's GSTIN (for B2B), invoice number, date, HSN/SAC codes, taxable value, and the correct tax breakdown. Missing any of these can invalidate the invoice for Input Tax Credit (ITC) claims.
CGST vs SGST vs IGST
For intra-state transactions (same state for supplier and buyer), GST is split equally into CGST and SGST. For inter-state transactions, the full rate is levied as IGST. The tool automatically applies the correct split based on the states you select — no manual tax calculation needed.
gavelCGST / SGST Auto-Split
Select supplier and buyer states and the tool automatically applies CGST+SGST for intra-state or IGST for inter-state — with GSTIN format validation built in.
18% GST = 9% CGST + 9% SGST for intra-state, or 18% IGST for inter-state — applied automatically based on your state selection.
Quick Usage Guide
- 1Automatic CGST/SGST split for same-state, IGST for inter-state
- 2GSTIN format validation for buyer and seller
- 3HSN/SAC code support for each line item
- 4All 28 Indian states and 8 UTs supported
Frequently Asked Questions
help_outlineWhat is a GST invoice?
A GST invoice is a legally compliant tax bill that includes GSTIN numbers, HSN/SAC codes, and correctly split taxes — CGST+SGST for intra-state or IGST for inter-state transactions.
verifiedHow are CGST and SGST calculated?
For intra-state transactions, the GST rate is split equally between CGST and SGST (e.g. 18% GST = 9% CGST + 9% SGST). For inter-state, the full rate is charged as IGST.
quizDoes the tool validate GSTIN numbers?
Yes, both buyer and seller GSTIN fields are validated against the standard 15-character alphanumeric GSTIN format.
account_balance_walletCan I download a GST-compliant PDF?
Yes, the generated PDF follows standard GST invoice formatting and includes all legally required fields.