💼All books of accounts must be registered online with the BIR's Online Registration and Update System.
📚Instead of manual stamping, a quick response (QR) code is generated for validation.
💻Loose leaf and computerized books of accounts can also be registered online.
📝Step 1: Update your email address using the IR Form 905.
📲Step 2: Register online using the Online Registration and Update System (ORUS).