Tax authorities often establish initial inventory corrections automatically by simply comparing the previous year's ending balance without performing a substantive test of the actual flow of goods. In the case of PT CI, the Board of Judges emphasized that material truth based on valid bookkeeping and independent audits must override formalities in tax return (SPT) reporting. The main conflict arose when the Respondent insisted on the previous year's fiscal figures (inkracht) which only recorded finished goods, while the Petitioner proved the existence of raw materials that were physically still available but misclassified as purchases in the previous year.
The resolution of this dispute provides protection for taxpayers using integrated accounting systems such as SAP, where every movement of goods is precisely documented. The Board of Judges rejected the Respondent's double deduction argument because it was mathematically proven that the total cost in the COGS did not experience inflation. This ruling serves as an important precedent that administrative reporting inconsistencies in the SPT do not automatically eliminate the validity of fiscal costs as long as the Taxpayer can prove the physical flow of goods and the suitability of their acquisition value in accordance with generally accepted accounting principles in Indonesia.