The official BIR website provides PDF versions of forms, but these are not always easy to compute with, especially for accountants who need automated sum formulas, conditional formatting, and error checking. The offers several advantages:
Corporations, Partnerships, and other Non-Individual taxpayers.
Many accountants keep the Excel version as their and the eBIRForms output as the official filing .
In newer versions (like v2018C), some automatic tax due computations were disabled to allow taxpayers to manually input rates based on the CREATE Act (e.g., 25% or 20% for small businesses).