Under what condition is an offseason workout bonus treated as a signing bonus?

An offseason workout bonus is treated as a signing bonus when it is unconditionally guaranteed for skill, injury, and cap termination. This condition indicates that the bonus is not contingent upon the player's performance or participation in workouts. By ensuring that the bonus is guaranteed in all circumstances involving skill, injury, or a team’s cap situation, it provides a level of financial security for the player, akin to a signing bonus, which is typically treated as part of the player's overall compensation cap.

When conditioned on performance, or when it depends on specific criteria set by the player or team, the bonus does not receive the same treatment as a signing bonus. Therefore, the unconditional nature of the guarantee is a key factor that aligns the treatment of the offseason workout bonus with that of a signing bonus.