RMC No. 17-2026 — Lost Five (5) Pads of Unused/Unissued BIR Form No. AF51 - Accountable Form No. 51

REPUBLIC OF THE PHILIPPINES

Bringing In Revenues for Nation-Building BUREAU OFINTERNALREVENUE DEPARTMENT OF FINANCE National Office Building Quezon City January 13, 2026 PILIPINAS BAGONG

REVENUE MEMORANDUM CIRCULAR No. 017-2026

SUBJECT: Lost Five 5 Pads of Unused/Unissued BIR Form No. AF51 Accountable Form No.51

TO All Internal Revenue Officials,Employees and Others Concerned

Form No.AF51-Accountable Form No.51,bearing the following serial numbers: Notice is hereby given of the loss of five (5 pads of unused/unissued BIR

ACF201400273751-ACF201400274000

No.ll,Western Visayas Region,and have consequently been cancelled.All official OIC-Chief,Administrative Section,Revenue District Office No.75,Revenue Region The abovementioned forms were reported as lost by Ms. Emee B. Zarate

transactions involving the use of said forms are therefore considered as INVALID

Internal Revenue officials,employees and others concerned are requested to promptly notify this Office in the event that the aforesaid forms are found and to take the necessary measures to prevent the improper or fraudulent disposition or use of the same.

JREAUOFINTERNALREVENUE DS MANAGEMENT DIVISION

MAR 09 2026

CHARLITO MARTIN R.MENDOZA

BY ADMIN UNIT IME 8:0P Commissioner of Internal Revenue

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BIR National Office Bldg.Senator Miriam Defensor-Santiago Avenue DilimanQuezon City Trunkline8981-70008929-7676 Website: www.bir.gov.ph