When the terms of an equity-settled award are modified, an entity must recognise, at a minimum, the services received measured at the original grant-date fair value. If the modification increases the total fair value or is otherwise beneficial to the employee, recognise the incremental fair value over the remaining vesting period. If the modification decreases fair value (i.e., is detrimental), ignore it for accounting purposes and continue as if the original terms still apply (IFRS 2.26–27).
A modification is any change to the terms or conditions of a share-based payment arrangement. Common examples: