RMC No. 11-2026 — Missing triplicate copy of unused/unissued BIR Form No. AF51 — Accountable Form No. 51.

Bringing In Revenues for Nation-Building BUREAVOENUERNALREVENUE REPUBLIC OF THE PHILIPPINES DEPARTMENT OF FINANCE Quezon City December 26. 2025 PILIPINAS BAGONG

REVENUE MEMORANDUM CIRCULAR No. 9.1 1 - 2 02 6

SUBJECT: Missing Triplicate Copy 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 (ACF),with the hereunder stated serial Notice is hereby given of the missing triplicate copy of unused/unissued BIR

number:

ACF201400141300

A. Cabasal and Ms. Fatima C. Benedito, Administrative Officer IV and Revenue The abovementioned form was reported as missing by Ms. Lovely Bee Ann

Collection Officer, respectively, both assigned at Revenue District Office No. 7, Revenue Region No. 2, Cordillera Administrative Region. Consequently, the entire ACF set bearing the said serial number is hereby cancelled. All official transactions involving the use thereof is therefore considered as INV ALID.

promptly notify this Office in the event that the aforesaid form is found and to take Internal Revenue officials, employees and others concerned are requested to

the necessary measures to prevent the improper or fraudulent disposition or use of the same.

CHARLITO MARTIN R. MENDOZA

Commissioner of Internal Revenue

0-4 @ ruread Ffinternay Remendg

OMSION

FEB 09 2025

BY ADMIN UNIT" TIME: j 43pm

BIR National Office Bldg., Senator Miriam Defensor-Santiago Avenue, Diliman, Quezon City Trunkline: 8981-7000 ; 8929-7676 Website: www.bir.gov.ph