Aatrix requires you to enter all Tax ID Numbers in its Company Information screen for all reports that it runs, not just for the report you are running at the moment. This is normal and Aatrix is behaving as intended.
Additionally, if the Aatrix tax form is generated but not saved; or, if the tax form is updated by Aatrix, you will be required to re-enter your tax iD numbers for your various state tax items, in the Aatrix form wizard. This is as intended.