Victory in Income Tax Article 26 Lawsuit: Taxpayer Strategies to Overturn the DGT's Adjustments on the Tax Base and Treaty Benefit Issues

The application of provisions within Double Taxation Avoidance Agreements (P3B) represents a dominant litigation issue, as demonstrated in the Income Tax Article 26 dispute won by PT PSK.

The Tax Court issued Decision Number PUT-007392.13/2023/PP/M.XIB Year 2025, which fully granted the appeal and canceled the Income Tax Article 23 Underpayment Assessment Letter (SKPKB) totaling IDR 192,483,992.00. This case reaffirms that verifying the transaction substance and fulfilling Treaty Benefit requirements by the withholding Taxpayer serve as the ultimate determinants in withholding tax disputes involving non-resident income.

The conflict originated from an adjustment established by the Director General of Taxes (DGT) based on the assumption that PT PSK was unable to prove that the non-resident taxpayer (WPLN) receiving the income was genuinely entitled to Tax Treaty benefits.

The DGT maintained its adjustment by applying the domestic Income Tax Article 26 rate of 20% on the gross income pursuant to Article 26 paragraph (1) of the Income Tax Law, replacing the lower Tax Treaty rate, because it deemed that the Applicant failed to produce a formally valid DGT Form or Certificate of Domicile (CoD). Conversely, the Applicant responded with robust documentation-supported arguments. They emphasized that the tax withholding was properly performed using valid Tax Treaty rates and that all necessary formal criteria had been met. The Applicant's defense focused on two core points: the substantial validity of the Tax Treaty must not be overridden by minor administrative errors, and the income classification strictly aligned with both domestic and international tax frameworks.

The Board of Judges of the Tax Court decided that the DGT's adjustment could not be sustained.

In its legal deliberations, the Court highlighted the DGT's failure to convincingly counter the evidence submitted by the Applicant, which included withholding tax slips, bank payment records, and contract agreements. The Board held that the Applicant had sufficiently demonstrated that they executed their Income Tax Article 26 withholding obligations correctly. This ruling underscores the paramount importance of concrete proof, whereby the Respondent's burden of proof to sustain its adjustments was left unsatisfied. Accordingly, the Court fully granted PT PSK's appeal.

The implications of this judgment provide essential legal certainty for withholding agents navigating Income Tax Article 26 disputes related to Tax Treaties.

It indicates that the Tax Court tends to prioritize verifying the true economic substance of a transaction over rigid formal flaws in administrative documents, provided that the Applicant can present an integrated trail of evidence supporting the overall Treaty Benefit claim. The direct consequence of this ruling is the complete invalidation of the issued SKPKB, thereby reinstating the original tax computations calculated by PT PSK. Taxpayers should utilize this decision as a vital benchmark to strengthen transfer pricing and Treaty Benefit documentation, ensuring that both formal and material aspects of cross-border transactions are flawlessly recorded.

PT PSK's total victory in this Income Tax Article 26 dispute demonstrates that an effective tax litigation strategy must seamlessly merge formal compliance...

...such as the completeness of the DGT Form, with a powerful defense of the transaction's true economic substance. This decision establishes an essential precedent reaffirming that tax assessments must be anchored by solid empirical evidence and rigorous legal arguments, rather than automated assumptions of formal failure.

A Comprehensive Analysis and the Tax Court Decision on This Dispute Are Available Here