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Free GST invoice maker for India
GST invoices, kept private.
Create professional GST bills with saved customers, items, GSTIN details and automatic numbering — right in your browser.
Private, offline-ready invoicing
Create a GST invoice
Private by design — your invoices, customers and business data stay on your device.
1. Invoice details
Preparing local workspace…2. Customer
3. Items & services
Pick a saved item or add a new one. Saved values fill automatically.
4. Review & payment
CGST + SGSTNotes, terms and payment details
A straightforward workflow
How to create a GST invoice
- Save your business defaults. Add your firm details, GSTIN, bank details and numbering format once.
- Select a customer and add items. Saved records fill quickly, or enter one-time details.
- Review GST and issue. The tool calculates the CGST/SGST or IGST split, then generates a local PDF.
GST invoice requirements
What a GST invoice should show
A practical GST invoice generally identifies the supplier and recipient, GSTIN where applicable, invoice number and date, place of supply, line-item taxable values, HSN/SAC, applicable tax amounts and total. Confirm the requirements for your transaction with a qualified tax professional.
Tax treatment
CGST vs SGST vs IGST
For supplies within the same state, total GST is split into CGST and SGST. For interstate supplies, it is charged as IGST. This creator derives the default from supplier state and place of supply, with a clear manual override.
Item classification
HSN/SAC on invoices
Add the HSN for goods or SAC for services to each item row. Save frequently used services and products locally so their rate, unit, discount and GST rate are ready next time.
Continuity
Automatic invoice numbering
Use a prefix, financial-year pattern, suffix, padding and starting number. The next number is based on your locally issued records; an existing number is never silently reused.
Private by design
Offline-capable and local-first
Your records are stored in this browser's IndexedDB, not on Chase Clarity servers. After the first successful load, the editor is available offline. Clearing browser or site storage may delete your records, so export a backup periodically.
FAQs
GST invoice generator FAQs
Is this GST invoice generator private?
Yes. Business profiles, customers, line items and invoices are stored in IndexedDB in your browser. Chase Clarity does not receive them. Export a backup regularly because clearing site storage can remove local records.
How are CGST, SGST and IGST calculated?
When the supplier state and place of supply match, the tool splits GST equally into CGST and SGST. For an interstate supply, it applies the full GST amount as IGST. You can override the treatment when needed.
Can I reuse customers and items?
Yes. Save a customer or item from the invoice workflow, then select it on a future invoice to fill its stored details.
Does the tool create e-invoices or verify payment?
No. It creates a GST-ready invoice PDF locally. It does not submit to the e-invoice portal or verify whether an invoice has been paid.