Bulk Discount Ladder Calculator

Fulfilment savings offset part of the discount.

Fulfilment savings offset part of the discount. The fixed fulfilment cost spreads across more units at each break, which offsets part of the discount.

Written and maintained by Mohit PatelLast checked August 4, 2026How we build these

Currency

Price

Contribution margin

Quantity break 1

Discount at break 1

Quantity break 2

Discount at break 2

Quantity break 3

Discount at break 3

Fulfilment cost per order

Contribution at the top break

$343.20

$13.73 per unit

Single unit$20.72 total, $20.72 per unit

5 units$108.30 total, $21.66 per unit

10 units$180.80 total, $18.08 per unit

25 units$343.20 total, $13.73 per unit

The fixed fulfilment cost is spread across more units at each break, which offsets part of the discount. Per-unit contribution peaks at the 5-unit break: a ladder where it falls at every step is discounting faster than the fulfilment saving justifies.

How the Bulk Discount Ladder Calculator works

The fixed fulfilment cost spreads across more units at each break, which offsets part of the discount. A ladder where per-unit contribution falls at every step is discounting faster than the fulfilment saving justifies.

Also known as: quantity discount tiers · volume discount schedule · bulk pricing ladder

Building a quantity ladder

A bulk discount ladder gives a lower unit price at higher quantities: 1 to 9 at full price, 10 to 24 at 10% off, 25 to 49 at 15%, 50 plus at 20%.

The justification is real cost savings at volume: one pick and one pack for fifty units instead of fifty of each, one shipment instead of many, and better predictability. Those savings should determine the discount rather than instinct.

Calculating the actual per-unit saving at each quantity is the exercise most sellers skip. The fulfilment saving from a fifty-unit order against fifty single orders is substantial and the goods cost is identical, so a 20% discount may be considerably more than the saving justifies.

Where the break points go

Break points should reflect natural purchase quantities and packaging units. A ladder with a break at 12 makes sense if the product comes twelve to a carton; a break at 10 means the warehouse splits cartons, which costs labour and creates part-cases.

Aligning breaks to case quantities, layer quantities and pallet quantities means every discount tier corresponds to a genuine handling saving. That makes the ladder both cheaper to serve and easier to justify.

The other consideration is where customers currently buy. A break just above a common order quantity captures customers stepping up; a break just below one gives a discount to customers who were already there.

The margin at each rung

Every tier needs its own margin check, because the discount and the cost savings do not move together smoothly.

A fifty-unit order at 20% off might contribute more in total than five ten-unit orders at 10% off, despite the lower unit margin, because the fulfilment cost is a fifth. Or it might contribute less. The arithmetic decides and it is per-tier rather than general.

The tier to watch is the top one, where the discount is deepest and the volume commitment may not be much larger than the tier below. A ladder where the 50-plus tier is barely more volume than the 25-plus tier is giving away the extra discount for very little.

Cannibalising the retail price

A bulk ladder available to everyone means retail customers buying at trade prices, and it undercuts any wholesale relationship you have.

Separating the channels is the usual answer: a trade account with an application, or a separate site, or a minimum order value that consumers will not reach. Each has an administrative cost and each protects the retail price.

The alternative, an open ladder, is simpler and suits businesses with no wholesale channel to protect. What causes problems is having both a wholesale channel and an open ladder, at which point your wholesale customers can see they are buying at a price the public can also get.

Resale, and controlling it

Bulk buyers frequently resell, and a ladder that makes resale profitable will generate resellers whether or not you wanted them.

On marketplaces this shows as your own product listed by third parties at prices you do not control, competing with your own listings and eroding the price you set.

The controls are contractual and practical: a minimum advertised price policy where enforceable, restricted quantities without a trade account, or simply setting the deepest tier at a discount that leaves no resale margin. The last is the most reliable, because it removes the incentive rather than trying to police the behaviour.

Where to go next

The Bulk Discount Ladder question rarely arrives on its own. These are the ones that usually come with it:

Spend and Save Calculator — Each tier has to earn its place.
Volume Discount Calculator — Whole-order repricing at each threshold.
Wholesale Price Calculator — Wholesale price that still leaves you a margin.
Etsy Fee Calculator — Every Etsy fee on one sale, itemised.

Not financial advice. Marketplace fees change, and they vary by country, plan and seller status. Every rate here is an editable default, not a quoted price, check the platform's current fee schedule before you price a product against it. This is not tax or business advice.

Frequently asked questions

How do I set quantity breaks?

Work out contribution per unit at each break including the fulfilment saving. Set the discount so contribution per unit holds or rises, not falls.

Why does fulfilment cost matter?

Because it is charged per order rather than per unit. Ten units in one order cost one pick-and-pack rather than ten, and that saving funds part of the discount.