POS billing software for fast counter sales

1. 1

   Start with the customer

   The customer name is set to Walk-in Customer. Type a name and phone number if you want the sale on that customer’s record.

2. 2

   Scan or search items

   The scan box is ready as soon as the screen opens. Scan a barcode and press Enter, or search by name. Scanning the same item again raises its quantity instead of adding a new line.

3. 3

   Check the total

   The subtotal, GST and rounded total update as you add items. Change a quantity or remove a line before you charge.

4. 4

   Take payment

   Pick cash, UPI, card, cheque, netbanking or bank transfer and enter the amount received. If you leave it blank, the full total is recorded as received.

5. 5

   Save and print

   Charge the sale. JustBill saves it as a sales invoice and shows the invoice number, and you can print a thermal receipt from that invoice.

A POS sale in JustBill is not a separate cash memo that someone re-enters later. It goes through the same invoice engine as your regular GST billing, so everything that depends on it updates on its own.

• Invoice number: the sale takes the next number in your sales invoice series.
• GST: CGST and SGST, or IGST, worked out per line from each item’s GST rate.
• Stock: product quantities fall at once, and a stock movement is logged against the invoice.
• GST returns: sales to customers without a GSTIN flow into the B2C part of your GSTR-1 data.
• Audit trail: the sale is written to your audit log like any other invoice.

Save a barcode against each item. On the POS screen, any USB or Bluetooth scanner that works like a keyboard (it types the code and presses Enter) adds the item straight to the bill.

No scanner yet? The item picker has a Scan Barcode button that uses your phone or tablet camera and reads both barcodes and QR codes. For loose or unbranded products, print a sheet of QR labels from the items list and stick them on the shelf or the pack.

Set your receipt paper width once in settings: 2-inch (58 mm) or 3-inch (80 mm). From any invoice, open the thermal receipt to preview it with your business name, phone, GSTIN, items, CGST/SGST/IGST totals, amount paid and any balance. Then print it to the receipt printer connected to your device.

If a customer asks for a full-page invoice, print it or share it from the same record. There is no second entry to make.

JustBill is a web app you can install on your phone or computer. It keeps your item and customer lists on the device for up to a day, and the regular invoice and payment forms save to an offline outbox when there is no connection. Entries sync when you are back online, and each one carries a unique key, so a retry can’t create a duplicate bill.

See how shops use JustBill from purchase to sale in our retail use case. POS billing is included on every plan, including Free.