IDR 9.5 Billion Sales VAT Correction Annulled: Tax Authority’s COGS Gross-Up Method Fails Without Concrete Proof of Actual Submission

The Limits of VAT Corrections: Challenging the Validity of Gross-Up Based Secondary Adjustments (The PT FI Case)

The determination of the Value Added Tax (VAT) Base (Dasar Pengenaan Pajak/DPP) is a critical issue in tax audits, particularly when the correction is a secondary adjustment stemming from a Corporate Income Tax (CIT) dispute. The case of PT FI, documented in Tax Court Decision No. PUT-003532.16/2024/PP/M.XVA Year 2025, explicitly highlights the invalidity of determining the Output VAT Base solely on the calculation of a Cost of Goods Sold (COGS) Gross-Up without substantiated evidence of unreported taxable goods submission. The Directorate General of Taxes (DGT) made an Output VAT Base correction of IDR 9,517,776,334.00, assuming unreported sales, which was based on the difference between the taxpayer’s reported COGS and Customs data.

Core Conflict: Tax Object Philosophy and Indirect Methods

The core conflict resides in the philosophical difference of tax object determination. The DGT relied on the provisions of Article 29 of the General Provisions and Tax Procedures Law (UU KUP) to use the indirect method (COGS Gross-Up), assuming the COGS/Import data discrepancy strongly indicated unreported sales that should be subject to VAT. Conversely, the Appellant argued that the VAT Base must refer to Article 4 paragraph (1) of the VAT Law, which explicitly requires an actual submission of Taxable Goods/Services. They rejected the secondary adjustment as being based merely on mathematical assumptions, lacking factual tax invoices or genuine submission documents.

Judicial Consideration: Consistency Across Disputes

The legal opinion of the Panel of Judges substantially affirmed the taxpayer's objection. The Panel viewed this secondary VAT adjustment as being intrinsically linked to the underlying CIT dispute, where the COGS Gross-Up method used as the basis for the Sales Revenue correction was also not upheld. This consistency is paramount; if the basis for the CIT correction (unreported sales) falls, the corresponding VAT secondary adjustment (Output VAT Base) is automatically deemed unsustainable. This decision confirms that tax authorities cannot impose VAT based solely on mathematical reconciliation or assumptions, but must prove the substance of a taxable event involving the submission of Taxable Goods/Services.

Implications for Taxpayer Compliance

The implication for taxpayers frequently facing VAT secondary adjustments based on transfer pricing or data reconciliation is significant. This ruling sets a strong precedent that taxpayers must maintain coherent documentation and narrative across import data, COGS, and Output VAT reporting.