We have a valued member of staff with 18 years of service whose job, due to corporate reorganisation, has diminished somewhat over the past few months. We could consider it a redundancy situation but would rather make the job part-time and the staff member has expressed willingness to move to part-time hours.
Our redundancy policy is basically two weeks pay for each year of service and the staff member has requested that, if she agrees to part-time but is then made redundant in the future, any redundancy payment would be made based on full-time salary for the first 18 years and the part-time salary thereafer. We are happy to agree with this request.
Is it sufficient just to include some wording to this effect in a letter detailing the variation to contract?

Zoe