e-FILING Calendar When: June 23, 2018 all-day 2018-06-23T00:00:00+08:00 2018-06-24T00:00:00+08:00 e-FILING LAST DAY OF e-FILING BIR Forms No. 2550M and 2551M for May 2018 (eFPS filers under Group C) Posted in .