I don't think my brain is working this morning. I'm having trouble coming up with the name for a group of radio buttons on an employee update form. The radio buttons are for if an employee is terminated, has left, or retired (let me know if I'm missing other reasons, too). In a word or two, what would you label this section?
Try termination reason or reason for termination.
Termination can encompass all the ways in which an employee and employer end their relationship.
termination - The action of terminating something or the fact of being terminated.
‘the termination of a contract’
This means your termination option can be far too broad in its meaning. This article gives many other causes for employment termination. Termination for cause is a term which is used to describe one of the causes given.
Termination for Cause: In other instances of employment termination, the employment is terminated for a reason which is given to the employee and stated in the termination letter.
I would stay away from a name that combines termination and cause because it may confuse persons familiar with the term.
For other questions like this you can try posting your question on English Language & Usage as a word-request or phrase-request.
According to a comment by the OP on another answer this form has three options,
'New employee', 'Current employee' and the one the question is about about. Based on this I would recommend using the term 'Former employee'
This fits in with the other employment status options and unlike the other terms suggested then AFAIK there is no 'hidden' meaning to the word former
'Termination'suggests to me that the person was fired.
'Departed' always make me think of the phrase 'Dearly departed' which is a euphemism for death
In talking with HR staff in the office from time to time, the term I've heard used most often is No Longer Employed (NLE). This could serve as a radio button group name and could potentially be more intuitive for your user group depending on their own conventions. The fact that the radio buttons indicate some explanation of how/why they're NLE would be implicit.
No Longer Employed