Legal Insights
Plain-language guides and case briefs on Philippine law — researched from the firm's law library of 184,000+ statutes, Supreme Court decisions, and agency issuances, and written so non-lawyers can understand and act on them.
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BIR Letter of Authority Audit Defense in the Philippines: Know Your Rights
Received a BIR Letter of Authority? Learn how a BIR audit works, what records you must keep, and how to respond when revenue officers examine your books.
When a Tax Audit Lacks Authority: The LOA Requirement in Philippine Tax Investigations
Philippine Supreme Court ruling on why BIR revenue officers need a valid Letter of Authority to conduct tax audits, and what happens when reassignments bypass this requirement.
Mastering Tax Assessments: The Timeliness and Validity of Protests in the Philippines
Learn how the Supreme Court protects taxpayers' due process rights when BIR reassigns revenue officers mid-audit without a new Letter of Authority.