BIR has issued RMC 17-2021 dated January 26, 2021 extending the filing of 1604C and 1604F, including the QAP for the 4th Quarter 2020 from January 31, 2021 to February 28, 2021.
Also, resubmission of alphalist from old version to new version is no longer required.
Attached is the pronouncement for complete reference.
Bustamante Lozada and Associates 