What is the BIR branch code?
Could you please elaborate on what the BIR branch code refers to? Is it a unique identifier for a specific branch of the Bureau of Internal Revenue (BIR) in the Philippines? If so, how does it differ from other identification codes or numbers used by the BIR? Also, what is the purpose of having a branch code, and how does it help in tax administration and compliance? Lastly, is there a specific format or structure that BIR branch codes follow?