Cash Handling, Billing and POS Operations
This domain tests till discipline, billing accuracy, GST invoicing and payment security - the areas where small errors become money losses.
Till discipline
Count and sign for the opening float. One cashier per drawer, no personal cash mixed in. Count change back to the customer, note the amount on the bill for large notes, and at close reconcile cash plus card plus UPI against the system total, reporting any variance.
POS billing sequence
Scan, verify item and price on screen, check quantity and offers, total, ask the payment mode, collect, print or offer the bill, bag, thank. A GST invoice shows the seller's GSTIN, invoice number, HSN code, taxable value, and CGST and SGST (or IGST for inter-state supply).
Payment and note security
For cards, never handle the PIN. For UPI, confirm the credit on the store's own device, not a customer screenshot. For notes, feel the paper, look at the security thread and latent image, and tilt for colour shift.
Worked example
An item's MRP is ₹472, inclusive of 18% GST. Reasoning: tax is inside MRP, so taxable value = 472 ÷ 1.18 = ₹400. GST = ₹72, split as CGST ₹36 and SGST ₹36. The customer still pays ₹472; GST is extracted, not added on top.
Traps that cost marks
Adding GST to MRP; accepting a UPI screenshot as proof; voiding a bill without supervisor authority; giving change without counting it back; rounding errors on cash totals.
Key points
- Float counted and signed at open; drawer reconciled at close
- MRP includes GST: taxable value = MRP ÷ (1 + rate)
- CGST and SGST apply within state, IGST across states
- Confirm UPI credit on the store device
- Voids and refunds need authorisation