Apply single or stacked discounts to a South Africa price, then add local tax to get the real amount payable.
Stacked discounts multiply rather than add: 20% then a further 10% is a 28% total reduction, not 30%. The effective discount line shows the real saving against list. South Africa. Stacked-discount arithmetic is where shoppers and sellers most often disagree, and it materially changes the margin on a promotion.
South Africa Discount
Final = list × (1 − d1) × (1 − d2), then tax is added
Final = list × (1 − d1) × (1 − d2), then tax is added Stacked discounts multiply rather than add: 20% then a further 10% is a 28% total reduction, not 30%. The effective discount line shows the real saving against list.
South Africa. Stacked-discount arithmetic is where shoppers and sellers most often disagree, and it materially changes the margin on a promotion.
This calculator takes 4 inputs: List price, Discount, Additional stacked discount, Tax added at checkout. The pre-filled defaults are a realistic starting point — replace them with figures from your own environment for a result you can act on.
In South Africa, a comma marks the decimal and a full stop groups thousands.
Results on this page are expressed in ZAR (South African Rand). Figures are estimates for general planning — confirm current rates and thresholds with the relevant South Africa authority before relying on them.