DOF Opinion No. 002.2018 – BIR Ruling No. 421-2013Request for Review of Bureau of Internal Revenue Ruling No.421-2013 Version Download 327 File Size 634.54 KB File Count 1 Create Date November 13, 2019 Last Updated November 13, 2019 Download Description Please Share This Share this content Opens in a new window Opens in a new window Opens in a new window