GST invoice software for small businesses
Raise a GST-correct invoice in seconds — right tax, right format, shared on WhatsApp with a UPI QR to get you paid faster. And because 24eTax is a complete system, that invoice also becomes your accounting entry and your GSTR-1 line.
What the invoicing does for you
Automatic GST calculation
CGST/SGST vs IGST decided by place of supply, line-level rounding the way GST law wants it, cess and reverse charge handled — you pick the item, the tax is right.
Every document type
Tax invoices, bills of supply, quotations, proforma, delivery challans, credit notes, debit notes, receipts — numbered in proper series and immutable once committed.
Customer & item masters
Add a customer by GSTIN and their details fill from the GST portal. Items carry HSN/SAC, unit and rate, so the tenth invoice is faster than the first.
Share & get paid
PDF on WhatsApp in two taps, UPI QR printed on the invoice for on-the-spot payment, and payment reminders for the rest. Receivables tracking is built in.
Credit & debit notes done right
Notes link to their invoice, reverse stock correctly, and flow into the CDNR tables of GSTR-1 automatically — returns and rate differences stop being month-end puzzles.
Sales register & accounting impact
Every committed invoice posts double-entry underneath: sales register, party ledger, GST payable — current in real time, with no separate accounting step.
Made for the counter, not the back office
Works offline
No signal in the shop? Bills still print and share; everything syncs when you're back online.
Fast on a phone
Designed for one-hand billing on Android — barcode scan, item search, recent parties. The desktop web app is there when you're at a desk.
Free to start
Up to 50 invoices a month free, forever — with your books and stock included. See pricing →
Frequently asked questions
What must a GST invoice contain?
The mandatory particulars include your GSTIN, a consecutive invoice number, date, the buyer's details (and GSTIN for B2B), HSN/SAC codes, taxable value, rate and amount of tax per line, and place of supply. 24eTax's invoices carry all of them — see the full checklist in our GST invoice format guide.
Can I customise the invoice with my logo?
Yes — invoices carry your business identity, and PDFs are formatted for A4 and thermal printers.
Does it support bill of supply for composition dealers?
Yes. Composition registrations bill with bills of supply (no tax on the document), and the app prepares CMP-08/GSTR-4 from the same data.
Can multiple staff bill at the same time?
Yes — each staff member gets their own login and role. A salesman can bill without seeing reports; you see everything, including who created what, in the audit log.
Is 50 free invoices a month really free?
Yes — free forever on the Free plan, including inventory and your books. Paid plans add unlimited invoicing, more users and GST filing.
Start free — bill, account and prepare GST today
14-day full-featured trial. No card. Works on your phone and in the browser.
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