Taxpayer Wins: The 2.51% Margin is 'Arm's Length', Tax Office Barred from Adjustment

The Tax Court has reaffirmed a fundamental principle in transfer pricing (TP) disputes: as long as a Taxpayer's profit margin is proven to be within the arm's length range (interquartile range), the tax authority has no legal basis to make an adjustment. This principle was at the core of PT WST victory, where a Rp. 4,671,277,888.00 sales correction was entirely annulled by the Panel of Judges. This case centered on disputes over methodology and comparability analysis between PT WST and the Directorate General of Taxes (DJP)

PT WST, operating as a toll manufacturer (garment services), had prepared its TP Doc ex-ante in accordance with PMK-213. Using the TNMM, the company identified its actual profit margin (FCMU) at 2.51%, which was proven to be within the comparables' arm's length range (Q1: 0.27% - Q3: 3.14%). Armed with this fact, PT WST argued that per the OECD TPG (paragraph 3.60), no adjustment should be made.

However, the DJP rejected this entire analysis. The DJP argued that PT WST's relationship with its affiliate (SK Pte Ltd) was highly integrated, making the TNMM inappropriate. The DJP then replaced the testing method with the Residual Profit Split Method (PSM) on an ex-post basis. In its application, the DJP used comparables from entirely different industries (distributors of medicine, books, and coal) using 2016 data (to test the 2017 tax year) and applied a profit allocation key that PT WST deemed unfair.

The Panel of Judges granted PT WST's appeal in its entirety. The Judges' legal reasoning was straightforward: (1) The Panel validated the fact that PT WST's 2.51% margin was indeed within the 0.27%-3.14% arm's length range. (2) The Panel explicitly adopted the OECD TPG principle (paragraphs 3.60 and 3.62) that if a margin is already within the range, no adjustment is necessary. (3) The DJP's legal basis for the adjustment was deemed unfulfilled. (4) The Panel also criticized the DJP, stating that TNMM was relevant for toll manufacturing, and the DJP's comparables (medicine/book industry) and data (2016) failed the comparability principle.

This decision sets an important precedent that strengthens the taxpayer's position. Formal compliance in preparing ex-ante TP Doc and the ability to prove the actual profit margin falls within the arm's length quartile range have been shown to be the most robust defense to defeat a transfer pricing adjustment, even when the tax authority attempts to change the testing method.

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