If you're running a shop and still billing on paper or in an Excel sheet, the honest first question isn't "which software is best" — it's "does switching cost me a day I can't afford to lose." This guide is written for that decision, not to sell you on any one feature list.
What actually matters when picking a free billing app
Most comparison articles list features. Here's what actually determines whether a shop sticks with an app past week one:
- Can you bill in under 30 seconds per customer? If adding an item takes more taps than writing it by hand, you'll quietly go back to paper within a week — this is the single biggest reason billing software gets abandoned.
- Does it work when the internet doesn't? Shop wifi and mobile data both drop mid-sale. An app that freezes your billing screen when offline is a liability, not a convenience.
- Is GST calculated automatically, per item? Manually working out CGST/SGST slabs per item is exactly the error-prone busywork software should remove — if you're still doing that math yourself, the software isn't doing its job.
- Can your CA actually use what it exports? A "GST report" that your accountant can't directly use for GSTR-1/GSTR-3B filing just becomes extra work at month-end instead of less.
- What happens when you outgrow the free plan? Check this before you have 200 customers in the system, not after. A tool that's free today but locks your own sales data behind a paywall later is worth knowing about upfront.
Moving off paper or Excel without losing a day
The switch doesn't have to be all-or-nothing. The lowest-risk approach:
- Add your existing inventory list first — most tools accept an Excel import, so your current stock sheet isn't wasted work.
- Run the new app alongside your old method for 2-3 days, not instead of it, until you trust it under real, busy-counter conditions.
- Only fully switch once you've printed real invoices for real customers and they've gone through fine — not based on a demo.
Where MyHisaab fits
MyHisaab was built around exactly this list: GST auto-calculated per item with UPI QR on every invoice, works fully offline and syncs when you're back online, Excel import for your existing stock list, and GST reports built to hand directly to a CA. It's free during early access — every feature unlocked, no card required — with plans launching later that you'll be told about in advance, so trying it today doesn't commit you to anything.
This guide is general practical advice, not tax advice — for anything specific to your GST filing, confirm with your CA or the GST portal directly.