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 Monday, April 1, 2019.  For MOC activities, there are a few important dates:  Learner completion data for CME that Counts for ABP MOC should have been submitted to PARS by December 1, 2018, and learner completion data for CME that Counts for ABA, ABIM, and ABPath MOC and Continuing Certification should be submitted to PARS by December 31, 2018.  ACPE does not have annual reporting requirements, and ANCC requires providers to complete annual reporting via NARS by April 1, 2019.