If the BIR fails to act within 180 days, you can also appeal to the CTA within 30 days after the deadline for the BIR to act, or wait for the final decision.
A plea for a re-evaluation of the assessment based on the existing records and documents already submitted. No new evidence is presented. sample protest letter tax assessment philippines
Bureau of Internal Revenue [Revenue District Office Address] [City, Philippines] If the BIR fails to act within 180
The BIR disallowed legitimate business expenses for [Reason], despite submission of valid receipts. despite submission of valid receipts.