Invoicing software with GST built in
Send clean, GST-correct invoices in seconds — 10+ layouts including 80mm thermal, credit/debit notes, and one-tap share to WhatsApp or email — all posting to real books.
Live product UI — sample data.
Beautiful, correct invoices
10+ themeable layouts (incl. 80mm thermal, proforma, quote, export, bill of supply), each GST-correct by construction.
Fast at the counter
Barcode scan-to-add, keyboard-first entry and instant totals — bill a customer in seconds.
Share & track
One-tap share to WhatsApp or email; every invoice posts to a real ledger and feeds your GST returns.
What this actually means in practice
An invoice does three jobs at once. It is a legal document your customer’s accountant will match against his credit, it is a demand for money, and it is often the only piece of your company a buyer ever holds. LekhaPro treats it as a designed artefact rather than a printout: accent, tint and depth colours, the typeface and its base size, where the logo sits, the page margins, which columns appear and in what order, and the wording of every fixed slot.
Numbering is where documents quietly go wrong. The rules want a run that is consecutive, unique within the financial year and short enough to fit sixteen characters; businesses want a separate run per document type — tax invoice, bill of supply, proforma, delivery challan, credit note — and frequently per branch or counter. The series is therefore a master in its own right, with prefix, financial-year segment and padding, and the next number is issued rather than typed.
Then the document has to travel. The same invoice prints to A4 or to an eighty-millimetre thermal roll at a counter, saves as PDF, and shares in one action to WhatsApp or email with the message already composed. A UPI payment QR can be placed on the page itself, so a customer holding the paper can pay without asking for your bank details. Behind all of it, the finished document posts to the ledger and feeds the return.
| Part of the document | What you decide | What is decided for you |
|---|---|---|
| Colour and type | Accent, tint and depth, typeface, base size, line height | Legibility at printed size |
| Masthead | Logo, its alignment, the company block wording | Statutory particulars that must appear |
| Number | Prefix, padding, one series per document type | Consecutive, unique per year, within the character limit |
| Line table | Which columns show, and in what order | Tax split, totals and rounding |
| Foot of the page | Terms, bank details, signature slot, notes | Amount in words and the tax summary |
| Payment block | Whether a UPI QR is composed onto the page | The QR encoding itself |
What’s included
- 10+ invoice layouts (incl. 80mm thermal)
- GST-correct totals
- Credit & debit notes
- Barcode scan-to-add
- One-tap WhatsApp / email share
- Recurring invoices
- Offline-first
What it does not do
- · Sharing opens WhatsApp or email with the message prefilled. Unattended bulk dispatch to a customer list is not built.
- · Typefaces come from a fixed set chosen for reliable print output, rather than from the fonts installed on your machine.
- · An e-invoice IRN and its official QR are issued by the portal through your provider; the design layer cannot mint them.
Frequently asked
Can it print to a thermal printer?
Yes — an 80mm thermal receipt layout is built in, alongside A4 tax-invoice layouts, and both print silently to your chosen printer.
Does it send invoices on WhatsApp?
It shares invoices in one tap via a WhatsApp / email link (opens with a prefilled message). Fully automated bulk sending is on the roadmap.
Do invoices update my accounts?
Yes — every invoice posts to the double-entry ledger and feeds GSTR-1/3B automatically.
Can I put my own design on the invoice, or only pick a template?
Both. There are more than ten layouts, including thermal, proforma, export and bill of supply, and each is then yours to adjust: palette, typeface and size, logo placement and alignment, page margins, which columns appear, and the wording of the fixed text slots. Overlays let you place further blocks where a particular trade needs them.
How should I set up my invoice numbering?
One series per document type, with a short prefix, the financial-year segment and four digits of padding — INV/2026-27/0001 is the usual shape. Keep prefixes brief, since the whole number must fit sixteen characters. Never share a series across companies, branches or counters; give each its own, so a run cannot fork or repeat.
What exactly is included in Invoicing · GST?
10+ invoice layouts (incl. 80mm thermal), GST-correct totals, credit & debit notes, barcode scan-to-add, one-tap WhatsApp / email share and recurring invoices, and 1 more. Every item on that list is a working screen you can open in the trial rather than a capability described in the abstract.
Does Invoicing · GST work offline?
On the Desktop edition, yes — completely. 10+ invoice layouts (incl. 80mm thermal) and GST-correct totals run against a local database on your own machine, so the screens behave the same with the network unplugged as with it connected. AI and billing are the only two things that reach out. On the Cloud edition invoicing · gst runs in the browser and needs a connection.
Does Invoicing · GST post to the real books?
Yes, and that is the whole reason it lives in this product rather than beside it. What beautiful, correct invoices records lands in the same posted double-entry ledger the Trial Balance, P&L and GST returns are built from — so there is no second set of invoicing · gst numbers to reconcile against the first.
How does Invoicing · GST affect my GST?
It feeds it directly rather than sitting alongside it. CGST/SGST and IGST are split from HSN or SAC and place of supply as each document is raised, so whatever invoicing · gst produces is already correct when GSTR-1, 3B and 2B reconciliation are drawn off the same books. The return matches the accounts because it was never a separate exercise.
Does Invoicing · GST cost extra?
No. Invoicing · GST is part of the accounting core rather than a paid add-on, so fast at the counter is there on the entry tier exactly as it is on the highest one. What the tiers change is reach and depth — devices, multi-branch and multi-warehouse reporting, and whether the conversational AI copilots are switched on.