What did Medicard Philippines, Inc. v. CIR hold regarding LOA?

• A. LOA is optional at all times.
• B. A valid LOA becomes mandatory when formal examination of books and issuance of an assessment begins.
• C. LOA is never required.
• D. LOA is only required if there is a civil case.

Answer: (B)

The main idea here is that the LOA (Letter of Authority) is the instrument that authorizes the tax authority to formally examine a taxpayer’s books and records. TheMedicard Philippines, Inc. v. CIR ruling clarifies when that authorization is required. It holds that a valid LOA becomes mandatory when the process reaches the formal examination stage and the potential for issuing an assessment begins. In practical terms, the BIR must have a proper LOA in place before it can conduct the formal audit and before any assessment can be issued. This protects due process by making clear the scope, period, and authority of the examination that the taxpayer is facing. It isn’t something optional at all times, nor is it only relevant in civil cases or never required; it specifically governs the moment the audit becomes formal and could lead to an assessment.