Why Cost of Living Assumptions Without Real Evidence Were Overturned by the Tax Court? 

Individual Tax Dispute: Indirect Audit Methods and the Assumption of Consistent Year-on-Year Living Expenses

This dispute centers on the Respondent's application of indirect audit methods, which adjusted the Domestic Other Net Income based on the assumption of consistent year-on-year living expenses. The conflict arose when the Respondent stipulated that the Petitioner’s 2017 living expenses must at least equal the 2016 figure of IDR 18,944,310,906.00 to maintain increased assets, despite the Petitioner's cash flow data indicating a significantly lower amount.

The Core Conflict: Minimum Benchmark Methodologies vs Actual Current-Year Cash Flows

The core conflict lies in the differing calculation methodologies. The Respondent insisted on using previous year data as a minimum benchmark, whereas the Petitioner argued that living expenses must be based on actual current-year cash flows. The Respondent claimed the Petitioner underreported income due to the discrepancy between the reported SPT funds and the audit's estimated living costs. Conversely, the Petitioner proved that the Respondent's 2016 baseline was flawed as it included the cost of assets sold rather than pure consumption.

Judicial Considerations: Rejection of Presumptions and Competent Evidence Under Article 76

The Board of Judges, in their legal consideration, emphasized that tax authorities cannot determine tax liability based solely on assumptions or "presumptions" without competent evidence. Pursuant to Article 76 of the Tax Court Law, the Judges ruled that the Petitioner successfully presented real expenditure evidence—such as education, health, and credit card statements—reflecting the actual 2017 conditions. In contrast, the Respondent’s cost of living analysis lacked a strong evidentiary basis to establish an additional economic capability as a taxable object.

Implications and Analysis: Precedent for Individual Taxpayers and the Prevalence of Material Truth

This decision carries significant implications for Individual Taxpayers, highlighting that documenting personal expenditures and cash flows is crucial when facing audits using indirect methods. The final ruling, which fully granted SE’s appeal, reaffirms that material truth (actual cash flow) prevails over statistical estimates or administrative assumptions.

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