House prosecution panel spokesperson and Lanao del Sur 1st District Representative Zia Alonto Adiong has raised potential tax evasion concerns against Vice President Sara Duterte.
The allegations follow forensic findings revealing an ₱111.85-million gap between her declared income and bank deposits, alongside ₱1.41 billion in financial discrepancies tied to three corporate entities linked to Duterte and her husband, Atty. Manases “Mans” Carpio.
During a press conference, Adiong emphasized that the issue extends beyond standard questions of unverified wealth or non-disclosure.
“Hindi lang ho ito issue ng non-disclosure or unexplained wealth. This is also an issue of tax evasion,” Adiong said.
Financial documents analyzed by forensic analyst and prosecution witness Alexander Cabrera showed that Duterte accumulated ₱174.96 million in bank inflows from 2022 to 2025, while only reporting ₱63.11 million in income. This discrepancy contributed to a broader estimate of ₱817.87 million in undeclared assets involving Duterte and Carpio.
The prosecution has challenged the Vice President to clarify the origins of these funds and the disparity with her Bureau of Internal Revenue (BIR) filings.
Furthermore, the prosecution highlighted massive income underdeclarations across three firms: GenCorp Industries Inc., Metro City Chow Foods Corporation, and Cale88 Foods Corporation. GenCorp recorded ₱2.58 billion in bank inflows against ₱1.53 billion in reported revenues, resulting in a roughly ₱1.05-billion gap.
Metro City Chow posted ₱241.87 million in bank inflows against ₱142.22 million in reported revenue, while Cale88 registered a ₱260-million difference. Cabrera’s findings indicate average income underdeclarations of 87% for GenCorp, 69% for Metro City Chow, and 51% for Cale88.
Adiong pointed out that these figures vastly surpass the 30% threshold under Section 248(B) of the National Internal Revenue Code (NIRC), where an underdeclaration of sales or income exceeding 30% serves as prima facie evidence of a fraudulent tax return.
“Ang Tagalog po ng prima facie is sa unang tingin na pag sumobra ng 30% ang kita ng kumpanya na hindi mo idineklara sa iyong isinasubmit sa BIR na dapat nakita mo kasi doon magbabase ’yung babayaran mong tax sa gobyerno. Ang sinasabi po ng tax code natin ay sa unang tingin meron pong false or fraudulent return,” he explained.
“Hindi mo binabayaran ng tamang buwis ang gobyerno base sa tama mong kita,” Adiong added, stressing that unresolved tax liabilities deny the state crucial funds for public services.
The corporate links were established through Duterte’s Statement of Assets, Liabilities, and Net Worth (SALN), which declared an interest in GenCorp, while Carpio was listed as a Cale88 shareholder alongside corporate records for Metro City Chow.
These findings constitute part of the prosecution’s case on unexplained wealth—the sole remaining charge under Article II of Duterte’s impeachment complaint after three other articles were withdrawn.
Vice President Duterte has denied any wrongdoing, and her legal team has contested the prosecution’s evidence. The defense team is set to present its counter-evidence when the Senate impeachment trial resumes on November 9.