Is the end of year reporting deadline the same for all activities across each major accreditation board?

No.  The ACCME considers “End of Year Reporting” to be at the end of March – this year the deadline is March 31, 2022.  For MOC activities, there are a few important dates:  Learner completion data for the American Board of Pediatrics (ABP) should have been submitted to PARS by December 1, 2021, and learner completion data for all other certifying boards collaborating with the ACCME should be submitted to PARS by December 31, 2021.  ACPE does not have annual reporting requirements, and ANCC requires providers to complete annual reporting via NARS by April 1, 2022.