zhuǎn​huì​fèi

signing bonus

转会费 (轉會費) zhuǎn​huì​fèi
signing bonus noun
An additional sum paid to an athlete or employee upon signing a new contract or joining a team.
transfer fee noun
The amount of money paid by one professional sports team to another to purchase a player's contract.

Frequency

Written text
1.87 per million

Sources

Definitions
CC-CEDICT
Frequency data
BCC Corpus (BLCU)