A note on best gst software for ca, written for practitioners: the reason client work takes so long is almost never the filing. It is reconstructing data that was never captured. This page is about fixing that end.
Where the hours actually go
Ask any practitioner where client time disappears and the answer is consistent: chasing missing GSTINs, correcting place-of-supply treatment, filling in blank HSN codes, explaining a broken invoice series, and matching purchases against 2B from a register that was typed from paper.
None of that is filing. All of it happens because a field was optional in the client’s software at the moment the invoice was raised.
The highest-leverage change available to a practice is not a better filing tool. It is getting clients onto billing software where those fields cannot be skipped.
What Billixo gives you as the client’s accountant
- Mandatory fields captured at source — GSTIN, place of supply, HSN on every line, correct tax split.
- A consecutive invoice series issued centrally and restarting each financial year, so gaps and duplicates do not happen.
- GSTR-1 and GSTR-3B summaries that reconcile to what was billed.
- Exports in CSV, Excel and JSON that open without repair.
- Credit and debit notes that reference the original invoice properly.
- A purchase register that keeps the supplier’s own invoice number and date, which is what 2B matching depends on.
- A free plan for the client at ₹0 — so recommending it costs them nothing and removes your objection about client budget.
Putting a client on it
- Have them open a free account — ₹0, no card, so there is nothing to approve.
- Set up the business details yourself if it is quicker: GSTIN, state, registration type.
- Import their party and item lists from whatever they have in Excel.
- Set the HSN codes properly once. This is the twenty minutes that saves you an hour every month afterwards.
- Agree a cut-off date and let them bill from it.
- Take the GSTR-1 export at month end and compare it to what you would have assembled by hand. That comparison is the whole business case.
What to insist on, whatever they choose
If a client will not move, these are worth insisting on in whatever they already use: GSTIN mandatory on B2B parties; place of supply set on the party rather than the voucher; HSN on every item master; one person responsible for the invoice series; purchases entered with the supplier’s exact invoice number and date.
Those five habits remove most of the month-end repair regardless of the software. The advantage of a system that enforces them is only that it does not depend on anyone remembering.
The handover, and why a file beats a login
Some products offer accountants a login into the client’s account. That is occasionally useful and usually not what you want — you work in your own tools, across many clients, and a login per client is a burden rather than a service.
A clean export is better: GSTR-1 and GSTR-3B summaries, a purchase register, and CSV or Excel of the underlying documents. It fits your workflow instead of asking you to adopt theirs.
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.
A note for accountants and CAs
If you are the person who has to make sense of a client’s billing at the end of the month, what you need from their software is narrow and specific: a complete outward supply summary, correct place-of-supply treatment, HSN present on every line, and an export you can open without repair.
Billixo produces GSTR-1 and GSTR-3B summaries and exports to CSV, Excel and JSON. Client-side, the invoice fields cannot be skipped, which removes the category of problem where the data was never captured in the first place.
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
What does it cost my client?
The Free plan is ₹0 with no card and no expiry. Paid plans are bought for a fixed term with no auto-renewal. Every new account gets the full paid feature set for its first 14 days.
Can I get the data in a format I can use?
CSV, Excel and JSON, covering customers, products, invoices and payments, plus the GST return summaries. Export works on every plan including the free one.
Can I set the client up myself?
Yes, and it is usually faster. Twenty minutes on business details, party and item masters and HSN codes removes most of the recurring monthly work.
Can more than one person use it?
On the paid plans, yes — team logins with their own credentials. The Free plan is a single login, which suits a one-person operation and is usually the first limit a growing business hits.
Is my data shared with anyone?
No. It sits in this installation, scoped to your company. AI requests only happen when you explicitly ask for one, and nothing is sent anywhere otherwise.
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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