Manila: The Bureau of Internal Revenue (BIR) on Tuesday presented a revamped, system-driven tax audit framework to the Senate as lawmakers examined allegations that letters of authority (LOAs) had been misused or 'weaponized' in past enforcement actions. Appearing before the Senate Blue Ribbon Committee during its inquiry on Proposed Senate Resolution 180, BIR Commissioner Charlito Mendoza said the agency has shifted to a digital, criteria-based audit regime under Revenue Memorandum Order (RMO) 1-2026, significantly limiting human discretion in the selection and issuance of LOAs.
According to Philippines News Agency, Mendoza explained that under the new rules, taxpayers to be audited will be chosen by the system. Audit targets are now identified electronically based on embedded risk indicators, after which examiners and supervisors are assigned anonymously. Only after approval by top management are cases de-anonymized and forwarded for the issuance of LOAs.
Mendoza highlighted that only two officials are now authorized to sign LOAs, referring to regional directors or the Large Taxpayers Service, with fraud cases coursed through national investigation units. About 45,000 previously issued LOAs remained active when the BIR suspended audit and field operations last year, but these are now subject to consolidation into a single electronic LOA per taxpayer per taxable year, unless a taxpayer formally requests otherwise.
Committee chair Senate President Pro Tempore Panfilo Lacson noted that system-driven and anonymized selection appears to reduce opportunities for manipulation, likening the process to a coded system where neither auditors nor supervisors know in advance who they will examine. Pressed on possible loopholes, Mendoza said the reforms were shaped by extensive stakeholder consultations, including recommendations from the private sector through the BIR Partnership with the Multisectoral Group, but emphasized that consistent implementation remains the challenge.
In its briefing, the BIR outlined additional safeguards, including clearer definitions of audit authority, the Single-Instance Audit Framework limiting audits to one LOA per taxpayer per year, standardized audit checklists, stricter documentation requirements, and the prohibition of examinations beyond authorized tax years or tax types. The bureau also dissolved special audit task forces, including the VAT Audit Section and the Large Taxpayers VAT Audit Unit, with audit functions returned to regular BIR offices.
To strengthen accountability, the BIR said it institutionalized the Revalida or 'Audit-the-Auditor' system, which reviews the quality, timeliness, and propriety of audit work. Senator Erwin Tulfo questioned whether the reforms are matched by concrete accountability, citing data showing that only a small fraction of LOA-related complaints in the past reached prosecutors.
Mendoza confirmed that the new rules expressly provide for administrative, civil, and criminal liability for erring personnel and that internal cases are already underway. He noted that 30 employees are currently undergoing investigation, with 25 already facing formal charges. Ongoing personnel reshuffling in revenue district offices aims to protect complainants and prevent retaliation.
Mendoza stated that audit reforms are part of the BIR's DARES agenda, which includes Digital and Data Transformation, Audit Reform and Accountability, Revenue Collection and Base Protection, Employee Empowerment and Welfare Promotion, and Service Excellence and Stakeholder Engagement. He concluded that with these reforms, the BIR audit system is being strengthened, with clear standards and enforced accountability.
