PT MMS faced significant corrections to its December 2020 VAT Output Tax, based on equalization of third-party data and customer advance balances. This dispute examines the limits of tax authorities' power to determine VAT-liable supplies based solely on administrative data without material evidence of goods or money flow. The core conflict lies in differing interpretations of PPh 23 Withholding Tax data and Input VAT Invoices from PTI which the Respondent claimed were unreported supplies by the Petitioner.
The Respondent maintained the correction by arguing that data from the tax information system (SIDJP) indicated transactions reported by the counterparty, thus automatically considered supplies for the Petitioner. Conversely, the Petitioner emphasized they never conducted such transactions, had no contracts, performed no services, and received no funds, arguing that unilateral tax assessments violate the principle of legal certainty.
The implication of this decision confirms that while third-party data is an initial indication, tax authorities must still prove the material existence of a transaction to determine tax liability. For Taxpayers, managing advance balances (deposits) and reconciling data with counterparties is crucial to avoid administrative correction risks that carry significant financial impacts.