BIR 2121: Application Form
Fill BIR 2121: Application Form online and download the official form as a PDF, ready to print. Every input is mapped to its printed box, so IDs, dates and amounts land digit by digit in the right cells, and a value the form cannot hold is refused with the reason instead of being printed wrong.
What you will need: Return Period / Date of Transaction, For the, Alphanumeric Tax Code (ATC), Taxpayer Identification Number (TIN), RDO Code, Taxpayer’s Name, Trade Name, Registered Address, ZIP Code, Taxpayer Classification, Line of Business, Contact Number (Landline/Cellphone No.).
The form is the agency's own June 2026 edition, from bir-cdn.bir.gov.ph (checked 2026-10-14): the PDF you download is that form with your values printed in its boxes.
The free clean PDF is that pack’s shortest form. A later form in the same pack needs the Starter plan (₱499) or above. Preview, check, and verify stay free. Not affiliated with BIR, SSS, PhilHealth, Pag-IBIG or any government agency.