The basic sales commission formula is:
Commission payout = eligible sales value × commission rate
Example 1 — Simple revenue commission
Eligible sales value: €100,000
Commission rate: 5%
Commission payout: €5,000
Example 2 — Quarterly commission with a marginal accelerator
This illustrative plan measures eligible sales over one calendar quarter. It pays 5% on the first €100,000 and 8% only on the amount above €100,000. The example excludes splits, adjustments and other incentives.
At €125,000 of eligible quarterly sales:
(€100,000 × 5%) + (€25,000 × 8%) = €5,000 + €2,000 = €7,000 commission.
At exactly €100,000, commission is €5,000. Crossing the threshold does not reprice earlier sales: the higher rate is marginal, not retroactive.
See the worked comparison of marginal and retroactive tiers for the alternative method and boundary tests.
The sales commission rate is only one part of the calculation. Real-world commission calculation may also include eligibility, timing, crediting, split deals, clawbacks, caps, accelerators, discount rules, margin rules, approvals, and payout timing.
For a deeper walkthrough, read how to calculate sales commissions. If you are modeling OTE and payout curves, you can also use the OTE calculator.