Evidence & Gross-Up Mechanics: Analyzing the PT SBS VAT Dispute

The tax dispute between PT SBS (Plaintiff) and the Directorate General of Taxation (Defendant) provides a crucial lesson on the strength of evidence in tax audits. The primary issue stems from the correction of the VAT Taxable Base (DPP) for the October 2019 period, issued through a gross-up mechanism on undisclosed purchases. Tax authorities utilized receivable flow testing and third-party confirmations to prove hidden business turnover.

The Core Conflict: Unrecorded Invoices vs. Speculative Claims

The core conflict began when the Defendant discovered Tax Invoice data from counterparts that were not recorded in the Plaintiff's books. Assuming that every purchase results in a sale, the Defendant performed a gross-up using a 8.9% gross profit margin (GPM) based on the Plaintiff's Corporate Income Tax Return. Conversely, the Plaintiff argued that the correction was speculative and alleged the possibility of corporate identity misuse by other parties.

Judicial Resolution: The Shifting Burden of Proof

The Board of Judges emphasized that although this lawsuit was filed against the rejection of an application under Article 36 (1) (b) of the KUP Law, the court remains authorized to examine substantive law. The Board viewed the positive confirmation from counterparts as robust evidence. The Plaintiff's claim regarding identity misuse was deemed groundless as the Plaintiff failed to present physical inventory evidence or adequate reconciliation.

Conclusion: The Power of External Cross-Checks

This decision reinforces the legal standing that audit techniques through expense flow testing and gross-ups are valid as long as they are supported by external confirmation. The implication for taxpayers is the vital importance of maintaining the integrity of purchase and sales administration systems. Merely denying without strong counter-evidence—such as valid goods flow evidence—will not suffice to annul tax authority corrections based on third-party cross-check data.

Taxpayers must proactively reconcile internal data with the data available in the DGT system (pre-populated data) to avoid similar disputes in the future.