If you do not have the new joiner's P45 details you must
fill in the P46 details immediately. Without filling in
either the P45 or the P46 details your RTI FPS e-filing
will be rejected.
Later on you must amend the P46 details to P45 details
when the new joiner is able to give you the P45.
Amending the details is not difficult
There are steps explaining how you can easily amend the
P46 details into P45 details in our FAQ - 2. FAQ is
situated at the right hand top corner of our web page.