Termination: what makes it lawful and what makes it expensive
Two separate questions decide the cost of a dismissal. The first is whether a statutory cause existed, because a cause defeats severance. The second is whether the dismissal was unfair, because an unfair dismissal can attract compensation even where severance was paid correctly. An employer can therefore pay everything owed and still lose, if the reason for the dismissal was arbitrary or the process was not followed.
The mechanics are unforgiving. The reason must be given in the dismissal document at the time; adding a better reason during the hearing does not work. Where the employer relies on a breach of work rules, there must be lawful published rules, a written warning that identifies the conduct, and a dismissal within the warning's effective period. Where the employer relies on absence, the three days must be consecutive working days without reasonable cause. Redundancy for economic reasons is lawful but is not a statutory cause, so severance remains payable, and relocation or restructuring can carry extra obligations of notice and special payment.
Settlement is usually rational for both sides, but only after the numbers are calculated properly. We prepare a schedule of severance, notice, leave, bonus entitlement and social security consequences, then negotiate against that figure. A release signed without that schedule tends to be attacked later on the ground that the employee did not know what was being waived.