My husband & I are jointly assessed for tax with Revenue. Up until recently my husband was on two payrolls and we split out the credits between 3 employers (including mine). Now he is employed by only one employer but we have not amended the credits. He has rec'd a P45 from the previous employer and my question is if he sends that to Revenue will they automatically move those credits to his current employer or can we leave things as they are and expect a return from Revenue on request of a P21? Thanks in advance