Bir Tax Calendar December 2025. The bureau of internal revenue (bir) website (www.bir.gov.ph) is a transaction hub where the taxpaying public can conveniently access anytime, anywhere updated information on the philippine tax laws and their implementing regulations and revenue issuances, including. Bir form 2316, also known as the certificate of compensation payment/tax withheld, is an official document issued by employers to their employees.
The philippine tax calendar for 2025 outlines key tax deadlines for business and individual taxpayers to comply with their tax obligations. Fiscal year beginning february 1, 2025;