GST Invoice Generator
Create a tax invoice layout with HSN/SAC, taxable value, and CGST+SGST (same state) or IGST (other state). For illustration — verify with your CA.
Parties & lines
Intra-state (CGST+SGST)
Auto from seller GSTIN (29) vs place of supply (27)
Line 1
Tax invoice
Original for recipient
Seller Pvt Ltd
Bengaluru, Karnataka
GSTIN: 29AAAAA0000A1Z5
Invoice No: INV-2026-042
Date: 2026-04-09
Place of supply: 27
Bill to
Buyer Enterprises
Mumbai, Maharashtra
GSTIN: 27BBBBB0000B1Z8
| Description | HSN | Qty | Rate | Taxable | IGST |
|---|---|---|---|---|---|
| SaaS subscription | 9983 | 1 | ₹1,00,000.00 | ₹1,00,000.00 | ₹18,000.00 |
Inter-state: IGST applies at the full GST rate on taxable value.
GST invoice generator — important
What does this tool do?
Builds a printable tax invoice layout with line-wise taxable values and CGST+SGST (intra-state) or IGST (inter-state) based on your toggle or GSTIN state codes.
Why does it matter?
A clear invoice reduces disputes and supports compliant bookkeeping — but the correct tax treatment depends on your actual supply and registration.
Definition
GST in India is levied on the taxable value of supply; intra-state supplies typically split into CGST and SGST, while inter-state supplies generally attract IGST.
Assumptions
- You confirm HSN/SAC, place of supply, and rates for each line
- Reverse charge, composition, exports, and exemptions are not modeled here
How do you interpret your results?
Use this as a formatting aid. Validate e-invoicing, thresholds, and reporting with your chartered accountant or tax advisor.
How can you improve your numbers?
Verify place of supply
POS drives whether IGST vs CGST/SGST applies — do not guess for high-value B2B deals.
Keep audit trail
Store invoice series, originals, and credit notes in line with your compliance process.
What the GST Invoice Generator does
The GST Invoice Generator builds a printable, GST-formatted tax invoice in your browser. You enter your business details and GSTIN, the customer's details, and your line items with HSN/SAC codes and the applicable GST rate — and the tool lays out taxable value, the CGST+SGST or IGST split, and totals in a clean, professional format.
For a small Indian business, the alternative is usually a Word template that someone edits by hand — where a mistyped rate, a missing GSTIN, or tax applied as IGST on an intra-state sale creates real cleanup work at filing time. A structured generator removes the format-level mistakes so the only thing you need to get right is your own numbers.
How to use the GST Invoice Generator
Fill in supplier and customer details
Add your business name, address, and GSTIN, then the customer's details and state. For B2B invoices, include the customer's GSTIN so they can claim input credit.
Add line items with HSN/SAC and rates
Enter each product or service, its HSN or SAC code, quantity, and the applicable GST rate. The tool computes taxable value and tax per line automatically.
Check the tax split, then print or save as PDF
Confirm the invoice shows CGST+SGST for same-state supplies or IGST for inter-state supplies, review the totals, and use Print / Save PDF to keep a copy for sending and your records.
How to read your results
The tax shows as CGST + SGST
The invoice is treating the sale as intra-state. That is correct when you and your customer are in the same state — if the customer is actually in another state, fix the state field before sending.
The tax shows as IGST
The sale is being treated as inter-state supply. Verify the customer's billing state supports that, and remember their GSTIN matters here — B2B buyers will reconcile this invoice against their returns.
Totals differ from your quote
The usual causes are a wrong GST rate on one line or tax quoted as included versus added. Recheck each line's rate against the applicable slab for that item, and state clearly whether prices are inclusive or exclusive of GST.
A note on compliance
This generator formats the invoice; it does not determine your legal obligations. E-invoicing thresholds, reverse charge, and place-of-supply edge cases depend on your registration — confirm with a CA.
Real-world examples
A Pune-based freelance designer billing a Bangalore client
Her first out-of-state client asked for a proper tax invoice with her SAC code. Entering both states, the generator applied IGST rather than the CGST+SGST split she used for local clients — a distinction she had been getting wrong on hand-made invoices. The client's accounts team cleared payment without the usual back-and-forth.
A hardware trader replacing a shared Word template
Two staff members were editing the same invoice template and occasionally shipping invoices with stale HSN codes or last month's customer details. Switching to the generator meant every invoice started blank with enforced fields, and the owner made GSTIN and state mandatory checks part of dispatch. Filing reconciliation the next quarter took noticeably less correction work.
Related free tools
GST Invoice Generator — Free Online — frequently asked questions
Quick answer
When do I use CGST and SGST vs IGST?
- Is this legally compliant
- Can I create a GST invoice online for free
- What details must appear on a GST tax invoice