LME Spot vs. Contract Price: Why Did the Tax Court Cancel PT TMS's VAT Base Correction?

Tax Dispute: Determining the VAT Base Using Contractual Price vs. LME Market Price

Legal certainty in determining the Tax Base (DPP) becomes crucial when the Respondent uses international market price instruments such as the LME to correct contractually agreed transaction values. This dispute focuses on the correction of Export VAT and Domestic Delivery VAT Base of PT TMS amounting to more than IDR 1.8 billion, where the Respondent insisted on using the highest LME price between the order date and the invoice date, while the Petitioner remained faithful to the price agreed upon when the Purchase Order (PO) was issued.

Core Conflict: Interpretation of Sales Price under the VAT Law

The conflict centered on the interpretation of Article 1 number 17 of the VAT Law, which defines Sales Price as the value in money requested or should be requested by the seller. The Respondent argued that the price "should be" the higher LME market price to maximize tax potential. Conversely, PT TMS emphasized that in the copper industry, the price is determined based on the agreement at the time of fixation (ordering), and subsequent market price fluctuations are business risks that should not alter the DPP that has been clearly agreed upon and for which payment has been received.

Judicial Consideration: Validity of Contractual Value and Res Judicata

In its consideration, the Board of Judges gave significant weight to transaction document evidence in the form of POs and Invoices showing consistency in value. Furthermore, the Board referred to the principle of res judicata regarding the Corporate Income Tax dispute decision for the same tax year, where corrections to gross income with similar subject matter had been canceled by the Tax Court and upheld by the Supreme Court. The Judges emphasized that without evidence of a special relationship or price manipulation, the value in the contract is a legitimate representation of the VAT Base.

Conclusion: Respecting Commercial Contract Reality

This resolution confirms that tax authorities cannot unilaterally replace real transaction values with market prices without a strong legal basis or evidence of unfairness. The implication of this decision strengthens the taxpayer's position in maintaining contractual prices (arm’s length price) as long as they are supported by adequate documentation. In conclusion, revenue recognition based on PSAK 23 and the reality of commercial contracts must be respected as a valid basis for determining the VAT Base.

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