Changing company tax ID

Hello,

Let me give you a little back ground to my question.  We have many companies on the same instance of JDE 9.2.  We ended up creating two companies out of one but they maintained the same Federal Tax ID but different State Tax ID's based on the State of operation.  Now one of the companies wants to have their own Federal Tax ID and they are talking about doing it at the beginning of the year.  That will be great for payroll to have a clean cut off.  2017 payroll taxes under the old and 2018 payroll taxes under the