GST invoicing for Indian startups, without paying for Zoho.
Pre-revenue or post-Series-A, you still need GST-compliant invoices for every B2B client. InvoiceOS gives you the basics — free — so finance isn't a line item until you actually need it.
Sample
What a startup invoice looks like
Rendered the same way InvoiceOS sends yours — GST split, place-of-supply note, UPI footer.
Tax Invoice
Lumen AI Technologies Pvt Ltd
GSTIN: 29LUMAI4567A1ZQ · Bengaluru, Karnataka
Invoice #
INV-2026-007
Date issued
29 May 2026
Billed to
Nexora Cloud Services Pvt Ltd
GSTIN: 07NEXCS9876B1ZJ
Due
12 Jun 2026
Inter-state · IGST
| Item | Qty | Rate | Amount |
|---|---|---|---|
Pilot — AI Inference API 1M tokens / month, dedicated endpoint, SLA | 1 | ₹1,20,000 | ₹1,20,000 |
Onboarding + integration support Slack channel, 2 engineering reviews | 1 | ₹25,000 | ₹25,000 |
Pay via UPI
billing@lumenai
Names, GSTINs, and amounts above are illustrative.
Why startups pick InvoiceOS
Invoice from day one
Raise your first invoice before you have a finance team. GST math, GSTIN format check, sequential numbering — all on autopilot.
B2B-ready PDFs
Procurement-friendly layout with HSN/SAC codes, GST breakdown, place of supply, and bank rails. Your customer's AP team won't bounce it.
Free until you're billing real volume
5 invoices/mo on Free. Most pre-seed startups stay on the free plan for the first 6 months.
Honest pricing, no enterprise lock-in
Pro at ₹499/mo or Business at ₹1,499/mo. No per-user creep, no surprise renewal hikes. Cancel any time.
Quick questions
Is InvoiceOS GST-audit safe?
Every invoice carries sequential numbering, GSTIN of supplier and recipient, place of supply, HSN/SAC, taxable value, and CGST/SGST/IGST breakdown — the fields a GST officer expects on a tax invoice. We don't file your GSTR for you (yet).
Can I export data when we move to a bigger ERP?
Yes. Pro tier includes CSV export of all invoices + line items. We never hold your data hostage — KLI's policy is one-click full export, always.
Raise your first GST invoice today
Free during open beta. We onboard the first 50 customers by hand — email hello@kli.so and we’ll set you up the same day.
Create your first invoice →