Pay mix is the split of on-target earnings between guaranteed base salary and at-risk variable pay, written as two numbers such as 60/40. The first number is the base share. A 60/40 mix on $120,000 of on-target earnings means $72,000 of salary and $48,000 of commission payable at full quota.
Two offers can arrive in the same week quoting $100,000 on-target, one at 80/20 and one at 50/50, and they are different jobs wearing the same headline. Pay mix is the ratio that separates them: the first number is the share of on-target earnings paid as salary whatever happens, the second is the share that has to be sold for. Risk, motivation and how badly a slow quarter lands all sit inside those two numbers, and none of it is visible in the on-target figure by itself.
The split is a statement about how much of the outcome the company believes the rep controls. Roles where one person can genuinely swing the number carry aggressive mixes. Roles where revenue mostly arrives through renewal, service or a team carry conservative ones. Across business to business sales the common range runs from about 50/50 for new-business hunters to 80/20 or 90/10 for account management and customer success, with 60/40 the most frequently quoted midpoint. Those are typical ranges rather than standards, and they move with industry, market and how confident a company is in its own quota setting.
Mix only means something read alongside quota difficulty. A 50/50 package against a target two thirds of the team clear is a well-paid job with real variance. The same 50/50 against a target a quarter of the team clear is a low-salary job with a lottery ticket attached, and the ratio on its own will not tell you which of those you are holding. Ask the attainment rate in the same breath as the split, because one number is meaningless without the other.
Two packages, both quoting $100,000 of on-target earnings against the same quota. One is 80/20, the other 50/50. Commission is a flat rate with no accelerator, so variable pay tracks attainment one for one.
One headline, two and a half times the volatility. Whether the aggressive mix is attractive depends less on appetite for risk than on how many people on that team cleared quota last year.
Comp redesigns often keep on-target earnings flat and move the mix, and the deck calls this cost neutral. For the rep it is a transfer of risk priced at zero. Shifting a $120,000 package from 70/30 to 50/50 takes $24,000 out of guaranteed salary and makes it conditional on a target that person did not set. If the change is worth making, fund it: a move toward variable usually needs higher on-target earnings, a guarantee over the transition, or both, to survive its first slow quarter without losing the people it was meant to motivate.
The long form lives in the guides: Plan templates.
Commish pays pay mix the way your plan describes it, shows the arithmetic on every line, and traces each payment back to the deal that earned it.