bir123HILDE DEPARTMENT OF FINANCE BUREAU OF INTERNAL REVENUE, Quezon City _ Aug 3.0 2022 REVENUE MEMORANDUM CIRCULAR No. 1237 2022 SUBJECT Clarifications on the Provisions of Revenue Regulations No. 6BIR123 LINK DAFTAR. Share link. close button. ?utm_medium=social&utm_source= share icon. social icon. Share on