CAS Registration
BlackZero generates your complete BIR CAS registration packet from your business profile — Annex A-1, A-2, A-3, sample invoice, and system guide — formatted and ready for RDO submission.
How it works
BlackZero handles the documentation. You handle the RDO submission and the conversation with BIR.
Enter your TIN, registered name, RDO code, business address, industry, and authorized signatory. BlackZero pre-fills what it already knows from your account.
The Annex A-1 system description, A-2 co-signatory declaration, A-3 Sworn Statement, sample invoice, and guide are generated automatically and formatted to BIR's prescribed layout.
Your BOA-accredited accountant reviews and co-signs the Annex A-2. You (the taxpayer or authorized representative) sign the Sworn Statement. BlackZero provides a co-signatory guide.
The packet is submitted to your Revenue District Office. BlackZero tracks AC issuance status in your dashboard. Once issued, you enter your AC number to activate the EIS pipeline.
What's generated
The CAS registration packet is precisely defined by RMO 9-2021. BlackZero produces every required document in the correct format.
BIR evaluation takes time. Starting now reduces deadline risk.