Revenue Memorandum Circular No. 42-2025

Circularizing the Implementing Rules and Regulations of Title XIII of Republic Act No. 8424, Otherwise Known as the National Internal Revenue Code of 1997, as Amended by Republic Act No. 12066

For the information and guidance of all internal revenue officials, employees and others concerned, attached as Annex “A” hereof is the Implementing Rules and Regulations of Title XIII of the National Internal Revenue Code of 1997, as amended by Republic Act No. 12066.

Updates

Revenue Memorandum Circular No. 103 – 2026

Revenue Memorandum Circular No. 102-2026

Revenue Memorandum Circular No. 100-2026

Revenue Memorandum Circular No. 99-2026

Revenue Memorandum Circular No. 98 – 2026

9 Important Items on Ph Lease Contract Every Tenant Should Pay Attention

Revenue Memorandum Circular No. 97 – 2026

Seminar Schedules

Oct 22 - Oct 23, 2026

Live Webinar: How to analyze Financial Statements (Practical Guide for Managers and Entrepreneurs to make a better decisions)

Nov 11, 2026

Live Webinar: Financial Statements Preparation Reminders

Nov 12 - Nov 13, 2026

Live Webinar: Basic Income Taxation and ITR Preparation for Corporation in Philippines 2026

Nov 19 - Nov 20, 2026

Live Webinar: Winning BIR Tax Assessments Series: Process, Remedies & Writing Effective Protest

Nov 24 - Nov 25, 2026

Live Webinar on Ph Payroll Computations and Taxation

Dec 04, 2026

Back-to-Back Business Essentials Year-end Updates and Reminders 2026

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