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Billing · GST-correct at the source

GST billing software that gets the tax right while you type.

CGST, SGST and IGST worked out line by line, HSN and place of supply set the moment you save, e-invoice prepared on the bill, and your GSTR-1 workings ready to file. Unlimited GST invoices are free on the Solo plan.

  • Reviewed June 2026
  • 6 min read
  • CA Anil Agarwal & the TatvaBooks team

What makes billing software "GST billing software"?

Any tool can print an invoice. GST billing software has to get the tax right at the moment the bill is raised — so the figures that flow into your returns come from real entries, not a spreadsheet rebuilt every quarter. Here's the checklist, and how TatvaBooks meets each line.

What GST billing needs How TatvaBooks does it
CGST / SGST / IGST applied automatically Picks inter-state vs intra-state on its own, with cess where it applies — calculated line by line as you type.
HSN / SAC on every line Captured at the item level, so every invoice carries the right code without you looking it up each time.
Place of supply, validated at entry Set when the bill is raised — a wrong-state invoice is blocked at save, not discovered at filing.
e-Invoice (IRN + signed QR) Qualifying bills are flagged and the IRN + QR are prepared on the invoice itself. Live filing to the NIC portal is on the near-term roadmap.
Credit & debit notes Raised against the original invoice so the tax reverses exactly the way GST expects.
GSTR-1 & GSTR-3B workings Your sales roll up GST-correct, ready to review — you file on the portal with the figures prepared.
GSTR-2B reconciliation Match purchases against your 2B and see ITC mismatches called out line by line before you claim.

Honest caveat: e-invoices are prepared on the bill (IRN + signed QR) but not yet filed live to the NIC portal — that link is on the near-term roadmap.

Is there free GST billing software?

Yes — and without the usual catch. TatvaBooks Solo is ₹0, with unlimited GST-correct invoices and credit/debit notes, for solopreneurs up to ₹25 lakh turnover. No per-invoice fee, no trial clock. When you need inventory, e-invoice preparation or more users, the Business plan is ₹599/month. The full free picture is on our free accounting software page.

From the bill to the GST return

Because the tax is decided at billing, the rest follows on its own:

  • Your sales roll up into GSTR-1 and GSTR-3B workings, ready to review and file on the portal.
  • Your purchases reconcile against GSTR-2B, with ITC mismatches surfaced line by line before you claim.
  • Billing a tracked item posts cost of goods and brings down stock in the same entry, so margins stay honest.

Cloud, not a download

TatvaBooks is cloud GST billing software: raise an invoice from any browser, on any device, with daily backups handled for you on India-resident infrastructure. A mobile app is coming during the beta. If you specifically need an offline desktop biller for a counter with no internet, we'll be honest that a desktop tool fits that better — see our Tally alternative and Vyapar pages.

Frequently asked questions

Is there free GST billing software?
Yes — TatvaBooks Solo includes unlimited GST-correct invoices, plus credit and debit notes, free forever (₹0) for solopreneurs up to ₹25 lakh turnover. There's no per-invoice fee and no expiring trial. You only move to a paid plan when you need things like inventory, e-invoice preparation, multiple users or payroll.
Can I use GST billing software online, or do I need to install it on a PC?
TatvaBooks is cloud billing software — you raise invoices in a browser on any device, and a mobile app (iOS + Android) is coming during the beta. There's nothing to install and no offline desktop build. If billing fully offline on a single PC is a hard requirement (say, a counter with unreliable internet), a desktop tool like Tally or Vyapar fits that better, and we'll say so honestly.
Does it generate e-invoices with IRN and QR?
It tracks the e-invoice turnover threshold, flags the bills that qualify, and prepares the IRN and signed QR on the invoice itself (on the Business plan and above). Live filing to the NIC/IRP portal is on our near-term roadmap — today the payload is prepared and sandbox-tested.
Does GST billing software file my GST returns for me?
TatvaBooks keeps every invoice GST-correct so your GSTR-1 and GSTR-3B workings roll up ready to review, and it reconciles your GSTR-2B for ITC. You file on the GST portal — the software prepares the figures rather than filing on your behalf.
What does GST billing software cost?
TatvaBooks Solo is ₹0 (free) with unlimited GST invoices. The Business plan at ₹599/month adds e-invoice preparation, inventory with cost of goods, purchase vouchers and up to three users. Growth and Practice add payroll, manufacturing and multi-client features. No per-invoice charges on any plan.
Does it handle reverse charge and bill items from inventory?
Yes. Reverse charge is captured on the voucher at entry. And on plans with inventory, billing a tracked item brings the stock down and posts cost of goods in the same entry — so your margins and closing stock stay accurate without a separate register.

Unlimited GST invoices · free on Solo

Raise your first GST-correct invoice today.

Sign up with email or Google and bill in minutes — the tax, HSN and place of supply worked out for you. No card, no per-invoice fee.