Retained search fees are a percentage of the hired executive's first-year total compensation, typically paid in three stages: engagement at mandate kick-off, shortlist on presentation, and placement on acceptance. Contingency fees are success-only, paid on placement, and generally lower — reflecting that the firm invests less upfront in mapping, assessment, and candidate cultivation. The structural difference is not just commercial. Retained search buys exclusivity, partner-level engagement, and structured process; contingency buys speed and lower nominal cost, at the cost of depth. For CXO mandates, contingency is rarely the right model — the fee is lower because the investment is lower, and the lower investment is visible in the shortlist. A firm offering hybrid or discounted retained terms without explaining what is being compressed is a flag.