When changes are agreed
Changes can be agreed verbally or in writing.
Agreed changes do not always have to be in writing, but it's a good idea to prevent any misunderstandings. It can also help to say when changes will take effect.
When changes must be in writing
If a change relates to anything that must legally be in the employee’s written statement of terms and conditions, the employer must notify the employee of the change in writing within a month of the change taking effect.
For example, the employer should do this if the change relates to:
- the job title
- the job description
- the job location
- working hours
- holiday entitlement
- changes to collective agreements with a trade union