Hello, welcome to the website. My name isXXXXX can assist you with this.
What is the issue exactly - that you don't want to recognise their length of service, or that you don't know what it is?
Do we need to include their previous service (with the Company we aquired) in the contract?
Yes, you do need to do this. The effect of TUPE is that their employment continues with you on the same terms and conditions as previously and their previous continuous employment is recognised.
So - how do we do this - do we put their start date back to when they started with the aquired Company or is their an additional paragraph we can insert - if so can you suggest the wording
You can put something like: "Your start date with us (your company) is xx.xx.xx, but your period of continuous employment is recognised as starting from aa.aa.aa (old company); this arises following our acquisition of the business of (old company)".
That way, you record both dates.