What is Bonus-Malus Arrangement?

A bonus-malus arrangement goes further than an SLA with a penalty clause: it also rewards positive performance and creates a two-sided incentive. The supplier earns more when they exceed the agreed standard, but pays back when they fall short. That changes the dynamic of the relationship.

A practical example for a cleaning contract: the standard is a quality score of 7.5 on a monthly inspection. If the supplier averages above 8.5, they receive a three percent bonus on the quarterly invoice. If they score below 6.5, a five percent discount applies. The supplier is now actively motivated to drive quality — not merely to clear the minimum threshold.

Three elements are essential for a bonus-malus arrangement. Measurable performance indicators: without objective measurement there is no basis for a bonus or malus. Clear threshold values: what is the baseline, what is the upper boundary for a bonus, and what triggers a malus? A clear calculation mechanism: how and when is the bonus or malus calculated and applied?

Bonus-malus arrangements are most effective for services where quality is measurable: cleaning, catering, security, and facilities management.

An SLA defines what is expected. A bonus-malus arrangement makes compliance financially attractive and non-compliance financially felt. That is a fundamentally different dynamic in the supplier relationship.

For SMBs, a bonus-malus arrangement is a powerful instrument for services that directly affect customer satisfaction day to day. A cleaning company that knows the quality score has a direct impact on the invoice manages its staff differently from one that only needs to clear minimum requirements.