It would appear that you have all your bases covered; however, what do you plan to do if the employee doesn’t agree to this change? Is this change required to keep their job? Is there a business reason for making this change?
It could be considered constructive dismissal if the employee has no option but to accept the change; however, the bump is a good mitigation strategy, but it is something to be cautious of.
Ultimately, if the employee signs off and is amenable to the change, you are fairly protected – as you have described it.
HR Insider staff