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LekhaPro
GST billing · offline

GST billing software that works offline

Create GST-perfect invoices in seconds — CGST/SGST/IGST and CESS correct by construction, e-invoice and e-way bill ready, on a real double-entry ledger that stays on your machine.

lekhaPro· New Tax Invoice
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New Tax Invoice
INV/2026-27/0143 · 16 Jun 2026 · Sharma Traders (Maharashtra)
Intra-state · CGST + SGST
ItemQtyRateGSTAmount
Steel Pipe 2" · HSN 730640₹1,25018%₹59,000
Welding Service · SAC 99881₹8,00018%₹9,440
Fittings pack · HSN 730712₹45018%₹6,372
Taxable₹63,400
CGST 9%₹5,706
SGST 9%₹5,706
Round Off₹0
Grand Total₹74,812
Seventy Four Thousand Eight Hundred Twelve Rupees Only

Live product UI — sample data.

  • GST-correct by construction

    Every invoice computes CGST/SGST/IGST and CESS from the place of supply and HSN/SAC — no manual tax rows, no mistakes. 10+ print layouts including 80mm thermal POS.

  • Returns & e-documents

    e-invoice (IRN) and e-way bill JSON offline, GSTR-1/3B and GSTR-2B reconciliation — with live filing through your GST Suvidha Provider when you connect one.

  • Real books underneath

    Every bill posts to a double-entry ledger with day book, Trial Balance, P&L and Balance Sheet — books a CA can sign off.

What this actually means in practice

Most GST trouble is not created in the filing month; it is created at the moment a bill is raised, and only discovered much later, when a return will not tie or a customer says his credit has never appeared. LekhaPro therefore puts the checking at the keyboard rather than at the deadline. The customer’s GSTIN is validated on its structure and its check digit, and its state code is cross-read against the party’s billing state, before the first line is entered.

From there the tax head is derived, never typed: your place of registration against the place of supply decides whether a line carries CGST and SGST or IGST, and the rate comes from the item’s HSN or SAC on the master rather than from whoever is standing at the counter. The document number is built for you — consecutive, unique within the financial year and inside the sixteen-character limit the rules impose — so a series cannot silently fork, skip or repeat.

A second net then runs across the books rather than the bill. The error catcher sweeps for place-of-supply mismatches, missing or structurally invalid HSN, rate anomalies and duplicate documents; the notice-risk score weighs those signals, together with the internal GSTR-1 against 3B tie-out, into a plain reading of how exposed the period looks. None of it files anything for you, and rates apply as notified — but it means that when you do file, you are filing books you have already argued with.

Where GST errors actually enter, and what is verified at that step
Step in raising the billWhat is verified at that step
Customer selectedGSTIN structure and check digit; its state code read against the billing state.
Place of supply setCGST/SGST or IGST derived from your registration and the supply state — not typed.
Item line addedRate taken from the HSN or SAC on the item master, not from the operator.
Document numberedSeries consecutive, unique in the financial year, within the character limit.
Bill savedDuplicate document numbers and repeated party-date-amount combinations flagged.
Before filingError catcher and notice-risk score sweep the whole period for the same faults.

What’s included

  • CGST/SGST/IGST/CESS by construction
  • HSN/SAC & place-of-supply logic
  • 10+ invoice layouts incl. 80mm thermal POS
  • Credit & debit notes with auto reversal
  • e-invoice (IRN) & e-way bill JSON
  • GSTR-1 / GSTR-3B
  • GSTR-2B reconciliation
  • Posted double-entry ledger
  • Barcode scan-to-add billing
  • Fully offline

What it does not do

  • · It does not file for you. GSTR-1 and 3B are produced and reconciled here; pushing them to the portal needs your own GST Suvidha Provider credentials.
  • · Rates, exemptions and limits change as notified. The masters carry what you set, and a rate you have not updated will be applied faithfully and wrongly.
  • · There is no payroll module — HRMS is genuinely unbuilt — so salary TDS and employee statutory dues sit outside these books entirely.

Frequently asked

Does it generate GST returns?

Yes — GSTR-1 and GSTR-3B JSON offline, plus GSTR-2B reconciliation. Live filing works through your own GST Suvidha Provider (GSP) connection; without it, the same documents export as JSON.

Does it support e-invoice and e-way bill?

Yes — e-invoice (IRN) and e-way bill JSON are generated offline; connect your GSP for live IRN / e-way-bill generation.

Is the tax calculation reliable?

Yes — CGST/SGST/IGST and CESS are derived from the place of supply and HSN/SAC by construction, so a bill is correct without any manual tax entry.

Does it work without the internet?

Yes. It is an offline-first Windows app — billing, returns JSON and your ledger all work offline, with your books stored locally.

I billed an out-of-state customer as though he were local. Will I find out?

Yes, at three points. The tax head is derived from the place of supply when the bill is raised, so the mistake usually cannot be made at all. If a party master carries the wrong state, the error catcher flags place-of-supply mismatches across the period, and the notice-risk score raises its band before you file rather than after.

Does correctness at entry mean I no longer need my chartered accountant?

No. What it removes is the fortnight he would otherwise spend correcting your data. He still settles classification questions, reviews the annual return, signs off the statements and answers the department. The software hands him books that already tie out; it does not hand him professional judgement, and it cannot give a signature.

What exactly is included in GST billing · offline?

CGST/SGST/IGST/CESS by construction, HSN/SAC & place-of-supply logic, 10+ invoice layouts incl. 80mm thermal POS, credit & debit notes with auto reversal, e-invoice (IRN) & e-way bill JSON and GSTR-1 / GSTR-3B, and 4 more. Every item on that list is a working screen you can open in the trial rather than a capability described in the abstract.

How is gst billing · offline handled differently here?

It rests on GST-correct by construction, returns & e-documents and real books underneath. The distinction that matters is that these are structural rather than cosmetic — the behaviour is built into how records are posted, not layered on as a report you have to remember to run.

Does GST billing · offline post to the real books?

Yes, and that is the whole reason it lives in this product rather than beside it. What GST-correct by construction 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 gst billing · offline numbers to reconcile against the first.

Does GST billing · offline cost extra?

No. GST billing · offline is part of the accounting core rather than a paid add-on, so returns & e-documents 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.

Two editions, one GST engine

GST billing works the same way whichever edition you pick — you choose at signup and can switch later.

Desktop edition — offline-first

A Windows app that bills, prints and files with no internet at all. Your books stay on your machine in a local database you hold, and several billing counters can share one local server over your LAN.

Explore the Desktop edition

Cloud edition — access anywhere

The same GST engine in the browser — nothing to install, multi-device and multi-branch access, plus a CRM/RevOps layer and industry packs such as Real Estate.

Explore the Cloud edition

Not sure which? Compare them side by side, see multi-counter LAN billing and multi-company accounting, or read our security and FAQ pages.

GST by state & union territory

All 36 GST jurisdictions. Each page carries that state's GST code, how place of supply resolves CGST/SGST against IGST there, and the state-level compliance items that differ — e-way bill threshold, RERA authority, drug licence authority and the rest.