Revenue Memorandum Circular (RMC) No. 110-2025,  the 2026 BIR Interactive Tax Calendar is now available on the BIR website (https://www.bir.gov.ph/home), or thru this link: https://testtaxcalendar.my.canva.site/2026-bir-tax-calendar.

The calendar contains the monthly tax filing and payment deadlines, along with additional features that provide direct access to the following:

  1. List of BIR Forms
  2. Attachments and Reports
  3. BIR Directory
  4. Authorized Agent Banks (AABs)
  5. BIR Social Media
  6. Guide on How to Use the BIR Interactive Tax Calendar