What is a Mafia Underboss?
Quick Answer
The underboss is the second most senior figure in a Mafia crime family, managing day-to-day operations and supervising the capos. He acts as boss when the boss is imprisoned or absent and is typically first in line to succeed. The underboss receives tribute from every capo and takes a percentage before passing the remainder to the boss — making him one of the highest earners in the organisation.
The underboss sits at the operational heart of a Mafia family. While the boss sets strategic direction and the consigliere provides counsel, the underboss is responsible for making the organisation actually work — ensuring the capos are performing, collecting tribute, resolving conflicts, and keeping the family’s criminal machinery running day to day.
What Does an Underboss Do?
The underboss’s primary function is operational management. He supervises all the family’s capos, receiving tribute from each and passing a percentage upward to the boss. He acts as the primary escalation point for disputes between crew members that cannot be resolved at the capo level. He manages the family during the boss’s absences — when the boss is imprisoned, in hospital, or simply unavailable.
In families where the boss maintains a deliberately low profile — as Carlo Gambino did throughout his reign — the underboss may handle much of the day-to-day visible leadership, acting as the face of the organisation in meetings with other families and in dealings with the broader criminal world.
How Underbosses Are Chosen
The boss appoints the underboss, and the choice is typically personal rather than structural. Bosses tend to choose underbosses they trust absolutely — often a close friend, a relative, or someone whose loyalty has been proven over decades. The underboss has access to information about the family’s entire operation that could be devastating if it fell into the wrong hands, which makes the trust requirement absolute.
The risk of an ambitious underboss is real. History records numerous instances where underbosses used their position and knowledge to move against their own boss — most dramatically when Salvatore Gravano turned government witness against John Gotti, providing the testimony that sent Gotti to prison for life.
Famous Underbosses
Aniello Dellacroce served as underboss of the Gambino family under both Carlo Gambino and Paul Castellano and was widely considered one of the most respected figures in New York organised crime. His death in December 1985 removed the restraining force between John Gotti’s faction and Castellano’s leadership — within two weeks Castellano was dead and Gotti had seized power.
Sammy “The Bull” Gravano became the most consequential underboss in Mafia history not through his service but through his betrayal — his decision to cooperate with prosecutors in 1991 effectively ended Gotti’s reign and symbolically marked the end of the Mafia’s golden era in New York.
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Frequently Asked Questions
What is a Mafia underboss?
The underboss is the second most senior figure in a crime family, managing day-to-day operations, supervising capos, and acting as boss when the boss is unavailable. He is typically first in line to succeed the boss.
What does an underboss earn?
The underboss receives tribute from every capo in the family, takes a percentage, and passes the rest to the boss. In a large, active family this can represent a very substantial income — among the highest in the organisation.
Who was the most famous underboss?
Salvatore Gravano of the Gambino family — whose decision to turn government witness against John Gotti in 1991 led directly to Gotti’s conviction and life sentence, making him the most consequential underboss in American Mafia history.
speak in place of an underboss or carry out additional tasks for the underboss.