Tiered plans (5% up to quota, 10% at quota, 15% above) create sharp motivation at exactly the quota line.

SaaS often uses accelerators: 100% of quota = 1× commission, 120% = 1.5×, 150% = 2×. Modeling these correctly matters for planning.

Base + commission mixes give predictability. Pure commission (100% variable) is high-risk high-reward — only take it if you own the pipeline.