Tiered pricing and volume pricing both reward larger purchases, but the math under the hood is different — and the difference can change a customer's bill by 20–40% on a borderline order. Subscription merchants offering bundles, multi-pack discounts, or quantity-based plans should know which model they're using because the customer's experience depends on it.
Tiered pricing in plain terms
Each tier of quantity gets its own per-unit price, and the bill is calculated tier by tier. Example for a coffee subscription:
- Bags 1–2: $20 each
- Bags 3–5: $18 each
- Bags 6+: $15 each
A customer buying 4 bags pays (2 × $20) + (2 × $18) = $76, not 4 × $18. The discount applies only to the units in each tier.
Volume pricing in plain terms
Once a threshold is hit, the discounted rate applies to the entire order — including the units that came before the threshold. Same example:
- Less than 3 bags: $20 each
- 3–5 bags: $18 each (all of them)
- 6+ bags: $15 each (all of them)
A customer buying 4 bags pays 4 × $18 = $72. The discount applies to everything in the order.
The behavior implications
- Volume pricing creates threshold cliffs. The jump from 5 to 6 bags drops the per-unit price from $18 to $15 — and the customer can rationalize buying the extra bag because the average price across the entire order drops.
- Tiered pricing is gentler. Hitting the next tier doesn't change the cost of prior units, so the bill grows more smoothly.
- Volume pricing leaves more revenue on the table at threshold sizes. If most customers cluster at the threshold, you're effectively giving away the discount on all the prior units.
- Tiered pricing is harder to explain. "Your first 2 are $20 and your next 3 are $18" is more friction at checkout than "buy 3+ for $18 each."
Which to use for subscriptions
For most subscription merchants offering quantity-based discounts (bundles, multi-pack plans, family-size options), volume pricing wins on simplicity and customer perception. The threshold cliff is a feature, not a bug — it nudges customers to the larger plan, which improves AOV and reduces churn risk on smaller plans. Tiered pricing makes more sense in B2B or wholesale contexts where order sizes vary widely and the granular accounting matters.
For related pricing models, see tiered pricing and tiered subscription pricing.