How to Price Products When Discounts Are Expected

Why this decision is easy to misread

If nearly every customer receives 10% or 20% off, the list price is not the economic selling price. Product pricing should begin with the expected paid price and work backward from required contribution.

A higher RRP used only to create a discount can also damage trust. The objective is a credible price architecture where promotions are funded rather than fictional.

Ecommerce decisions should be based on contribution profit, not revenue or platform ROAS alone. GST, discounts, landed cost, fulfilment, payment fees, refunds, returns and acquisition cost all sit between a sale and cash available to cover overhead.

Attribution is also imperfect. Platform-reported revenue may include customers who would have purchased anyway, while store reports can miss the influence of earlier advertising. Use the calculator as a unit-economics model and compare it with actual cohort and payment data.

The calculation, step by step

Expected discount

Use the weighted average across normal orders, not the largest campaign code.

In the calculator, this item should be entered separately so a change in expected discount can be tested without hiding it inside another assumption. Keeping the input visible also makes later reviews and comparisons more reliable.

Net price ex GST

Remove GST from the discounted customer payment.

In the calculator, this item should be entered separately so a change in net price ex gst can be tested without hiding it inside another assumption. Keeping the input visible also makes later reviews and comparisons more reliable.

Variable costs

Subtract landed cost, fulfilment, shipping, fees and expected returns.

In the calculator, this item should be entered separately so a change in variable costs can be tested without hiding it inside another assumption. Keeping the input visible also makes later reviews and comparisons more reliable.

CAC allowance

Reserve acquisition cost appropriate to the channel.

In the calculator, this item should be entered separately so a change in cac allowance can be tested without hiding it inside another assumption. Keeping the input visible also makes later reviews and comparisons more reliable.

Target contribution

Add the amount needed for overhead and profit.

In the calculator, this item should be entered separately so a change in target contribution can be tested without hiding it inside another assumption. Keeping the input visible also makes later reviews and comparisons more reliable.

RRP

Solve for the list price that produces the target after the expected discount.

In the calculator, this item should be entered separately so a change in rrp can be tested without hiding it inside another assumption. Keeping the input visible also makes later reviews and comparisons more reliable.

Worked Australian example

If the business needs $20 contribution after a $30 CAC and variable non-ad costs total $48 excluding GST, net sales must be about $98. With 10% GST and an expected 15% discount, the required RRP is roughly $126.82.

A $109 RRP in that scenario cannot be rescued by volume unless costs or CAC fall.

Decision checklist

Use the calculator with this guide

Open Ecommerce Profit and Break-Even ROAS Calculator Australia

Start with GST-exclusive revenue and deduct landed cost, fulfilment, payment fees, expected returns and acquisition cost at an order level.

Use the linked calculator for how to price products when discounts are expected with a documented base case. Save the output, then create a conservative case using the most uncertain input from the worked example.

The useful break-even point is the ad efficiency or selling price where contribution profit reaches zero after all variable costs. Record that threshold beside the headline result; it is often the clearest way to judge whether the decision has enough margin for error.

Common mistakes

• Pricing from product cost with a simple markup.
• Using RRP as average revenue.
• Ignoring stacked discounts and codes.
• Assuming volume fixes negative contribution.
• Running promotions without a CAC ceiling.

Questions to answer before acting

• Use the normal realised discount.
• Price from target contribution backward.
• Test free-shipping thresholds.
• Check competitor context without copying unprofitable pricing.
• Review return rate after promotions.

Where how to price products when discounts are expected depends on law, tax, eligibility, lending policy or a contract, verify the applicable rule with the official source. The calculator measures the consequence of the input; it does not establish that the input legally applies.

Record keeping and review

For this calculation, retain the evidence behind expected discount and net price ex gst. Label each number as confirmed, quoted, estimated or stress-tested, and date the evidence so a later comparison does not silently mix figures from different periods.

Official sources

The sources below were selected for How to Price Products When Discounts Are Expected because they define the relevant measurement, rule or evidence base. Recheck dated rates, thresholds and official guidance before acting.

• ATO — Registering for GST
• ATO — How Australian GST works

Related guides

• Break-Even ROAS vs Profitable ROASCalculate the ad-spend threshold that covers variable costs and the stricter ROAS needed to fund overhead and profit.
• Ecommerce Contribution Margin ExplainedMeasure the money each order contributes after variable costs but before fixed overhead.
• How GST Affects Ecommerce Profit in AustraliaRemove GST correctly from customer revenue and avoid overstating margins, CAC limits and ROAS.
• How Returns Change Your Real Customer Acquisition CostInclude refund rate, reverse logistics and lost product value when judging ecommerce advertising.

Frequently asked questions

Sensitivity check before acting

Stress-test discount rate, customer acquisition cost and returns together. Those inputs compound: a discount reduces revenue while fulfilment and many fees remain, and a higher return rate can erase the contribution left for advertising.

For How to Price Products When Discounts Are Expected, keep the base, conservative and stress cases together. The decision is stronger when it survives a realistic adverse change rather than depending on one precise forecast.

Bottom line

Discount pricing works only when the expected paid price—not the crossed-out RRP—funds the business.