Revenue Audit Order · RAOInternal administration / RMO ops

REVENUE ADMINISTRATIVE ORDER NO. 5-2026 issued on August 13, 2026

Bureau of Internal RevenueIndependent research copyOpen source document

Document type: RAO
Number: 5
Year: 2026
Text quality: ocr

Source PDF

Official document hosted by the Bureau of Internal Revenue

Document text

Reference copy · verify against the official source

REVENUE ADMINISTRATIVE ORDER NO. 5-2026 issued on August 13, 2026 amends RAO No. 6-2025 relative to stating of full names of the abbreviations used in the naming of the following BIR Revenue Regions (RRs): • RR No. 5 – Caloocan, Malabon, Navotas, Valenzuela and Bulacan (CAMANAVA and Bulacan) • RR No. 7B – East National Capital Region (East NCR) • RR No. 8B – South National Capital Region (South NCR) • RR No. 9A – Cavite, Batangas, Oriental Mindoro, Occidental Mindoro and Romblon (CaBaMiRo) • RR No. 9B – Laguna, Quezon and Marinduque (LaQueMar) 1

Research aid

Issuance analysis

Structured from the available issuance text · Internal administration / RMO ops

Revenue Administrative Order No. 5-2026, issued on August 13, 2026, amends RAO No. 6-2025 to spell out the full names behind the abbreviations used in naming five BIR Revenue Regions: RR No. 5 (CAMANAVA and Bulacan), RR No. 7B (East NCR), RR No. 8B (South NCR), RR No. 9A (CaBaMiRo), and RR No. 9B (LaQueMar).

Purpose

To amend RAO No. 6-2025 by stating the full names of the abbreviations used in the naming of BIR Revenue Regions Nos. 5, 7B, 8B, 9A and 9B.

In brief

An administrative order amending RAO No. 6-2025 to state the full names of the abbreviations in the names of five BIR Revenue Regions (RR No. 5, 7B, 8B, 9A and 9B), such as CAMANAVA, CaBaMiRo and LaQueMar.

Keywords

Revenue Regions (RRs)RAO No. 6-2025CAMANAVA and BulacanCaBaMiRoLaQueMarEast NCRSouth NCRfull names of abbreviations

Key points

RAO No. 5-2026 was issued on August 13, 2026 and amends RAO No. 6-2025 regarding the stating of full names of abbreviations used in naming BIR Revenue Regions.
RR No. 5 is named Caloocan, Malabon, Navotas, Valenzuela and Bulacan, abbreviated as CAMANAVA and Bulacan.
RR No. 7B is named East National Capital Region, abbreviated as East NCR.
RR No. 8B is named South National Capital Region, abbreviated as South NCR.
RR No. 9A is named Cavite, Batangas, Oriental Mindoro, Occidental Mindoro and Romblon, abbreviated as CaBaMiRo.
RR No. 9B is named Laguna, Quezon and Marinduque, abbreviated as LaQueMar.