BIR Revenue Memorandum Circular No.66-2021 August 11, 2021 By Management BIR Revenue Memorandum Circular No.66-2021 Announces the availability of BIR Form Nos. 1702Q January 2018 (ENCS) in the Electronic Filing and Payment System (eFPS) and 1702Qv2008C in the Electronic Bureau of Internal Revenue Forms (eBIRForms)