A volume discount is a price reduction a seller grants for buying in larger quantities, applied to a single order or to committed volume across a contract period. The buyer commits to more units, and the unit price falls.

Two structures dominate. A tiered discount applies each rate only to the units inside its band. An all-units discount reprices the entire volume at the new rate, creating a cliff where a customer just above a break pays less in total than one just below it. That cliff also teaches buyers to time orders around thresholds rather than around demand.

In B2B, the volume discount is rarely the only concession on the deal. It stacks with rebates, payment terms, and freight allowances, each approved separately. The contract shows one number. The price waterfall shows the real one.

Thresholds are where the margin goes. Most get set from negotiation history rather than cost to serve, so the breaks reward the customers who pushed hardest. The symptom is price variance between similar accounts nobody can explain.

A volume discount earns its place when the volume genuinely lowers cost to serve. Absent that test, it is precedent wearing a policy label. If your breaks were set at the negotiating table rather than in the model, Acustrategy can rebuild them around what volume actually costs you. Reach out to see what your current thresholds are giving away.