First, know where your TIN is currently registered or which BIR Branch or Revenue District Office (RDO).
If you don’t know which BIR District Office you got your TIN Card. You can call the BIR Contact center at 981-8888 or email contact_us@cctr.bir.gov.ph or call Taxpayer Information & Education Division 981-7000 local 7250 / 7251 / 7252 give them your full name and your birthdate. Just ask them that you want to know where your TIN is currently registered or which BIR District Office your TIN is registered.