Software companies are poorly placed to answer this question honestly, so let us be direct about the incentive and answer it anyway: most very small businesses do not need a paid billing plan on day one, and starting on one is a good way to abandon the whole idea when the renewal arrives before the habit does.
A free plan is genuinely enough when
- You raise a handful of invoices a month and know every customer by name.
- Stock is something you can see by looking at the shelf.
- One person raises every bill.
- Your accountant is happy with a CSV at the end of the quarter.
The signals that you have outgrown it
- You hit the invoice cap before the month ends — the clearest signal there is, and the least ambiguous.
- You have stopped knowing what is in stock without walking to it.
- Someone else needs to raise invoices, and you are sharing a password to allow it.
- You are spending an evening a month assembling numbers your software could have assembled.
- Your CA is asking for things you have to go and find.
Do not pay for these reasons
A feature you have not needed yet. A tier that sounds more serious. A discount with a deadline. If the free plan is not constraining you, paying does not remove a constraint — it just moves money.
The honest test
Run the free plan for a full month, properly, on real bills rather than samples. At the end of it you will either have hit a wall you can name, or you will not. If you can name the wall, upgrading is an easy decision and you will know exactly which plan removes it. If you cannot, you have your answer and it cost nothing.
What free means here
BizGST Pro's free plan is ₹0 forever with no card: five invoices a month, ten customers, ten items, GST invoices with the CGST/SGST/IGST split, PDF print, and the GST calculator. It does not expire, and your data exports whether you ever pay or not.