What to look for in billing software, how to judge it in half an hour with your own data, and a free plan to do that on without giving anyone a card.
What separates a billing system from a template
Not the invoice. Any template produces a reasonable-looking invoice, and for two or three bills a month a template is genuinely the right tool.
What a system adds is memory. One numbering series, issued centrally, that cannot repeat. Customers and items stored once, so the GSTIN is right on the fortieth invoice. Tax derived from the place of supply rather than chosen by whoever is typing. A record of what is unpaid. And figures a return can be built from without someone compiling them.
Every one of those is about record-keeping rather than about documents, which is why the comparison between a template and a system is usually argued on the wrong ground. The invoice is not the point; the invoice is the output.
The threshold where it changes is specific: a second person starts billing, the volume passes roughly twenty a month, or you have to file a return from it. Before that, a careful spreadsheet is a defensible choice.
How to judge any of them in half an hour
- Use your own data. Load ten of your real items, including two at different tax rates. Demo data hides everything that matters.
- Raise a mixed-rate bill and check the tax is computed per line and totalled per head, not applied once to the total.
- Print it on the printer you actually use, on the paper or roll you actually use.
- Raise a second bill and confirm the number advanced on its own, without being typed.
- Cancel one and check the number was not handed back for reuse.
- Add an out-of-state customer with a GSTIN and confirm the supply switched to IGST without being asked.
- Export everything, then open the file. If you cannot export, stop there — the rest does not matter.
- Ask what happens if you stop paying. "Locked" and "deleted" are both answers that should end the conversation.
What you get, free
- Complete GST tax invoices — every legally required field, tax split per line, not a template with a tax box.
- Customers stored once with GSTIN, address and state.
- Items stored once with HSN or SAC, rate and tax.
- Tax derived, not chosen — CGST and SGST or IGST, from the place of supply against your registration state.
- One numbering series, issued centrally, consecutive within the financial year.
- Stock that moves as you bill, so a closing figure means something.
- A receivables position — who owes what, aged, without adding anything up.
- PDF invoices to print, email or send on WhatsApp.
- Full export to CSV, Excel and JSON, on every plan including the free one.
- ₹0 — no card, no expiry, not a trial.
Moving off a spreadsheet without losing a month
- Pick a cut-off date. The start of a month or a quarter is easiest to reconcile against.
- Tidy the spreadsheet first: one row per invoice, no merged cells, GSTINs in their own column.
- Import customers, then items. Fix what the import reports rather than what you assume it got wrong.
- Enter only the unpaid invoices. Settled history can stay in the file — you need the balances, not the archive.
- Set the next invoice number to carry on from the last one you issued, so the series stays consecutive across the move.
- Bill everything from the cut-off date onwards in the new system and keep the old file read-only.
- Reconcile one month both ways before you stop maintaining the spreadsheet.
What this product is not for
Worth saying directly, because every page in this category is written the other way round and it wastes people's time.
It is not full double-entry accounting. There is no chart of accounts, no journal entries, no bank reconciliation and no balance sheet. It produces clean exportable figures for an accountant who does that work.
It is not an ERP. No production planning, no bill of materials, no payroll, no approval hierarchies across departments.
It is not installed software. It runs in a browser and needs a connection to issue a bill, so a counter that loses internet for hours should choose something local.
And it does not integrate with hardware beyond a printer and a USB scanner — no weighing scales, no fuel dispensers, no serial-port cash drawers. If something at your counter has to speak to the software directly, that decides it.
What it does do is the shared middle: correct GST documents, a numbering series that holds, tax computed rather than typed, stock, receivables, and figures a return can be built from.
Questions worth asking any vendor, including this one
Six questions, in the order of how much they cost you if you do not ask.
Can I export everything, in full, whenever I want, on the plan I am on? If export is a paid feature, your records are leverage. What happens to my data if I stop paying? "Locked" and "deleted" should both end the conversation. Who can see my data, and where is it stored? Can two people bill at once on one numbering series, and what does the second login cost? What happens when the internet drops at my counter? And what does this cost next year, after whatever the first-year price is?
None of these appear on a comparison table, and all of them are the reasons people change billing software eighteen months after choosing it.
For the record, on this product: export is on every plan including the free one, the free plan does not expire so records never become unreachable, billing needs a connection, and the paid plans are bought for a fixed term with no auto-renewal and no card kept on file.
Reverse charge, exports and the supplies that behave differently
Not every supply is a straightforward taxable sale. Some notified supplies put the tax liability on the recipient rather than the supplier. Exports and supplies to an SEZ can be made under a bond or LUT without payment of tax, or with tax and a refund claimed afterwards. Composition dealers cannot charge tax at all and must say so on the bill.
Each of these changes what the invoice has to say — the reverse charge marking, the LUT reference, the "composition taxable person" declaration. They are not exotic cases; most businesses hit at least one.
The fields are on the invoice in Billixo whether or not you use them, so the day you need one you are not looking for a workaround.
What a GST invoice legally has to carry
Rule 46 of the CGST Rules sets out what a tax invoice must show, and it is a longer list than most invoice templates carry. Getting one field wrong does not usually cost you anything the day you raise it — it costs your customer their input credit months later, which is a harder conversation.
The fields are:
- Your name, address and GSTIN
- A consecutive invoice number, unique within the financial year
- The date of issue
- The customer's name, address and GSTIN where they are registered
- Place of supply, and the state code, for inter-state supplies
- HSN or SAC against every line
- Description, quantity, unit, rate and taxable value per line
- Rate and amount of CGST, SGST/UTGST, IGST and cess, shown separately
- Whether tax is payable on reverse charge
- Signature or digital signature of the supplier or an authorised person
Billixo fills these in from the customer and product records rather than asking you to remember them, which is the only reliable way a busy counter gets them all right every time.
Bill scanning, in practice
The single largest time cost in most small businesses is not raising invoices — it is entering purchases. A photograph of a supplier bill goes in and a structured draft comes out: supplier, GSTIN, line items, rates, tax split and total.
You check it. That is the workflow, and it is deliberate: an extraction you did not read is a liability, not a saving. But checking a filled form takes fifteen seconds and typing one takes three minutes, and that difference compounds over a month of purchases.
Who it is built for
Small and mid-sized Indian businesses that are registered under GST and bill regularly. One person doing everything, or a counter with three people billing at once and an accountant who needs the month to close cleanly.
The design assumption throughout is that whoever raises the invoice is busy and is not a tax specialist. So the tax is computed rather than asked for, the compliance fields are populated rather than presented as questions, and the report the accountant wants is a download rather than a request.
Try it free — the free plan needs no card and does not expire.
Free, and what it costs you instead
Free software usually costs you something that is not money: your data held hostage, an export that does not work, ads inside your invoice, or a "free" tier so narrow it is a demo with a login screen.
The line here is drawn differently. Export works on the free plan — CSV, Excel and JSON — because data you cannot get out is not data you own. The invoice is a real compliant invoice, not a sample. The limits are on volume and on the conveniences, not on whether the thing works.
Start free now. If it does not suit you, take your data with you.
Reliability, backups and getting your data out
Cloud billing software is only as good as its worst day. Two things matter more than any feature list: that your data is backed up somewhere you can reach, and that you can export it in a format something else can read.
Exports here are CSV, Excel and JSON, on every plan including the free one, covering customers, products, invoices and payments. That is the honest test of whether software respects you — not what it promises, but what it lets you take when you leave.
Frequently asked questions
Will it handle my GST returns?
It prepares and exports GSTR-1 and GSTR-3B figures on the paid plans, and reconciles purchases against GSTR-2B. Filing happens on the government portal — nothing here submits a return on your behalf.
Can I import what I already have?
Yes — customers and items import from a spreadsheet. The advice that saves the most time is to tidy the sheet first: one row per record, no merged cells, GSTINs in their own column.
Can I get my data out again?
Yes, on every plan including the free one — CSV, Excel and JSON, in full, whenever you want. Records you cannot export are not records you own, so it is not something to put behind a payment.
Will my accountant be able to work with it?
That is what the GSTR-1 and GSTR-3B summaries are for. They export in formats a practitioner can open and reconcile without repairing the file first — which, in practice, is most of what a CA wants from a client’s billing software.
What happens to my data if I stop paying?
Nothing is deleted. The account settles back onto the Free plan: the paid conveniences switch off, the volume limits return, and every invoice, customer and product you created stays exactly where it is — including the export.
Start free, decide later
You do not have to choose a plan to begin. Start on Free, use it for as long as it suits you, and upgrade only when a limit actually gets in your way — never automatically, and never because a countdown ran out.
Open the software demo → — or create the free account from the same page.
Read the full details → on the home page, including pricing and the AI features.
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