Tax Sampling Warning! Lessons from the AJMI Case: How Audit Extrapolations Can Be Partially Overturned by Judges? 

Tax Lawsuit Analysis: AJMI and the Validity of Extrapolation in VAT Base Disputes

Tax authorities frequently employ sampling techniques during field audits to test compliance regarding the provision of Taxable Services (JKP), yet the use of extrapolation methods to determine the total VAT Base (DPP) often triggers significant legal disputes in the Tax Court. In this case, the Respondent made a positive correction to the VAT Base for the December 2019 Tax Period against PT Asuransi Jiwa Manulife Indonesia (AJMI), with the disputed value reaching IDR 30,345,999,876.00 based on findings of JKP deliveries deemed uncollected at several marketing offices.

The Conflict: Technical Audit Discretion vs. VAT-Exempt Services

The core of the conflict centered on differences in transaction classification and the methodology for determining the correction value. The Respondent argued that based on Article 4 paragraph (1) letter c of the VAT Law, every delivery of JKP within the customs area must be taxed, and the use of extrapolation is justified by technical audit regulations if data is incomplete. Conversely, AJMI, as the Taxpayer, emphasized its position as an insurance company whose primary services are exempted from VAT under Article 4A paragraph (3) letter n of the VAT Law. AJMI contested the validity of the Respondent's extrapolation, considering it failed to reflect the material facts of all marketing offices and mixed non-object transactions into the calculation.

Judicial Resolution: Deterministic Evidence over Assumptive Calculations

The M.XIIA Board of Judges provided a balanced resolution in their legal considerations. While the Board acknowledged the legality of extrapolation techniques as part of the tax auditor's discretion, the application of extrapolated figures must be supported by deterministic evidence and cannot be merely assumptive. Following an evidentiary examination (re-matching) during the trial, it was discovered that some of the data used as the sampling basis by the Respondent consisted of transactions that were substantively not VAT objects or had been correctly reported by the Taxpayer.

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