Discounts and adjustments on the bill

Q: Does a discount need a manager's approval?

No. The Discount link (when the company switches it on) and the Rate link can be used by any cashier, and neither asks for a reason. Your supervisor checks the day's bills ( A day as the supervisor or shop manager ).

Q: The line already shows a discount and nobody typed it.

The product is in a running scheme ( Schemes: running discounts on products ).

Q: Where do I see a discount on the screen?

A line discount shows on its line ( Discount and Net amount ). A bill discount shows in the totals under Sub total ( The POS Sales screen ).

Discounts come from three places: a scheme set up by the shop, the line's Discount link when the company allows it, and a bill adjustment whose rate is editable. Each reduces the line or the total before VAT is added.

Retail POS Building the bill
4 min read
Updated October 20, 2026

For Cashier Supervisor or shop manager Accountant

On this page

Where a discount comes from
Change a line's discount
Use another dated rate
Questions customers ask

Where a discount comes from

Source	What the cashier sees	Who sets it up
A scheme	The line already shows a Discount when the product is in a running scheme (Schemes: running discounts on products)	The shop, in the scheme screens
The line's Discount link	Discount on the line is a link: it opens Product discount setting page, where each adjustment of the line can be changed (Rate or Amount)	The company switches on Editable product discounts in Configuration
A bill adjustment with an editable rate	A bill line under Sub total (for example a bill discount) whose rate can be typed	The accountant, in the sales adjustments, switches Is editable on
Loyalty points	Loyalty discount in the payment area (Spend points on a bill: the loyalty adjustment policy)	The shop's loyalty policies

A line's discount is taken off the line's Amount to give its Net amount. Bill adjustments (a bill discount, VAT) are worked out on the sum of the net amounts in the order the company set, and shown under Sub total (VAT, rounding and the kind of invoice).

Change a line's discount

Open the line's discount
Who
Cashier or supervisor
Where
POS Sales > Discount on the line
What changes
Product discount setting page opens with each adjustment of the line, its Basis, Sign, Rate and Amount.
Change the rate or the amount
What changes
Change Rate and the amount follows, or change Amount and the rate follows. The totals show at once.
Save
Where
Save
What changes
The line shows the new Discount and Net amount, and the bill's totals are worked out again.

Use another dated rate

The Rate link of a line opens Datewise rate details: the product's rates by the date each starts (Rate Applicable from date, Buy rate, Sales rate, MRP). Double-click a row and that Sales rate becomes the line's rate. Use it when a customer holds an old price (a bill that must honour a rate in force on an earlier date).

Worked example: a line discount, a dated rate and a bill discount

A line discount. The cashier sells 5 notebooks at 120: the line Amount is 600. A running scheme gives 10% off, so the line shows Discount 60 and Net amount 540. If the company has Editable product discounts on and the cashier opens Discount and changes the adjustment's Rate to 15, the adjustment's Amount follows: 90, and the line's Net amount is 510. Typing 45 in the adjustment's Amount instead gives a Rate of 7.5.

A dated rate. A customer holds a promise at the old price. Rate opens Datewise rate details, where the notebook has an older Sales rate of 100 and a current one of 120. Double-click the 100 row: the line is now 5 at 100. No approval is asked, so the supervisor checks such bills afterwards (Where POS bills show in Accounting).

A bill discount. The accountant has set a bill adjustment "Bill discount" of 5% with Is editable on, placed before VAT. The lines come to a Sub total of 1,000, all of them VAT applicable, and VAT is 13% (the rate set up for this example):

Line under Sub total	Amount
Bill discount, 5% of 1,000	-50.00
VAT, 13% of 950	123.50
Bill total	1,073.50

The discount comes off before VAT is added, so the customer pays VAT only on the lower amount.

Questions customers ask

Does a discount need a manager's approval?

No. The Discount link (when the company switches it on) and the Rate link can be used by any cashier, and neither asks for a reason. Your supervisor checks the day's bills (A day as the supervisor or shop manager).

The line already shows a discount and nobody typed it.

The product is in a running scheme (Schemes: running discounts on products).

Is the loyalty discount a payment?

No. It lowers the bill itself, so the VAT follows the lower total (Spend points on a bill: the loyalty adjustment policy).

Where do I see a discount on the screen?

A line discount shows on its line (Discount and Net amount). A bill discount shows in the totals under Sub total (The POS Sales screen).