Back to Legal Insights
Tax Law

Responding to a BIR Letter of Authority: The Initial Review

Published July 1, 2025
Updated September 25, 2026
By Nopuente Law Firm

Receiving a BIR Letter of Authority (LOA) triggers a strict legal process with deadlines that cannot be missed. This guide explains what an LOA is, what your rights are, and exactly what to do from the moment you receive it.

Direct answer

On receiving a BIR LOA or eLA, record receipt, verify authority and scope, and organize document production. An objection does not itself suspend the audit or later response deadlines.

Preserve the authority and service record

Keep the complete LOA/eLA, covering communication, acknowledgment and any prior audit authority. Identify the taxpayer, taxable period, tax types, named officers and issuing authority. Verify the applicable delegation and issuance rules rather than assuming that every RDO may sign or that every authority lapses under a universal 30-day rule.

Check replacements and assignments

RMC No. 14-2026 explains that the Single-Instance Audit Framework is prospective. A valid older authority is not invalid simply because the new framework exists. A replacement eLA can preserve continuity within the relevant conditions, including the same taxpayer, period and scope. Review the chain of authority when personnel change.

Distinguish an actual authorization defect from a change the rules permit. Preserve the objection in writing while protecting the company’s procedural position.

Control the production process

Initial audit controls
WorkstreamPractical record
AuthorityOriginal and replacement eLAs, assignments and receipt dates.
ScopeCovered entities, periods and taxes matched against requests.
EvidenceIndexed copies, reconciliations and a designated custodian.
CommunicationsOne response register with requests, answers and delivery proof.
ManagementIssue owner, escalation date and material-exposure assessment.

Provide accurate, responsive information through an agreed process. Keep originals and copies distinguishable. Avoid inconsistent explanations from different departments and do not destroy or reconstruct historical records.

Do not confuse audit response with protest

An LOA authorizes examination; it is not the final assessment. A NOD, PAN, FLD/FAN and decision each require a fresh review. For reinvestigation of an FLD/FAN, failing to submit relevant supporting documents within the applicable 60-day period is not merely an automatic conversion into reconsideration. See the formal protest guide before choosing that remedy.

Settlement and further proceedings

Compromise requires statutory eligibility and approval; it is not a routine entitlement. Section 204 excludes criminal violations already filed in court and those involving fraud from its criminal-compromise authority. Other conditions and the particular case still matter. A later collection measure or criminal referral should be assessed separately from the original audit response.

Related assistance

For the next step, see audit defense, authority defects. Engagement depends on conflict checking and an agreed scope.

Sources and further reading

Important

This article provides general information, not advice on a particular matter. The applicable law, documents, procedural events and facts must be checked. Reading it does not create an attorney-client relationship.

Topics covered:

BIR letter of authorityLOA response PhilippinesBIR audit defensetax assessment PhilippinesPAN FAN protestNIRC
Legal DisclaimerThis article is published by Nopuente Law Firm for general informational and educational purposes only. It does not constitute legal advice and does not create an attorney-client relationship. The information may not reflect the most current legal developments and may not apply to your specific circumstances. Laws, regulations, and BIR issuances in the Philippines are subject to change without notice. Do not act or refrain from acting based on this article without first consulting a qualified Philippine lawyer who can advise you on the specific facts of your situation. For legal assistance, contact us at inquiries@nopuentelawfirm.com.