In the landscape of tax audits in Indonesia, especially following the enactment of Minister of Finance Regulation Number 15 of 2025, Taxpayer compliance testing methodologies have become increasingly structured and data-driven. One of the main areas of focus for Tax Auditors is withholding tax compliance, with Article 21 Income Tax (PPh 21) being the most significant component.
This article will dissect in depth the Equalization technique procedure between salary/wage expenses charged in the Annual Corporate Income Tax Return and the Tax Base (DPP) reported in the Unified Monthly Tax Returns (Article 21 section) cumulatively for one tax year. This discussion is based on audit standards regulated in SE-65/PJ/2013, DGT audit modules, and the latest regulatory dynamics.
Equalization is an audit method performed by comparing two or more logically related figures to ensure their accuracy. In the context of PPh 21, equalization serves as a "reconciliation bridge" between two reporting regimes:
Tax Auditors use this technique to detect whether there are payments of salaries, bonuses, honorariums, or other service rewards that have been charged as company expenses but have not been tax-withheld or reported in the Monthly Returns.
The equalization procedure begins by dissecting the Taxpayer's Financial Statements. Based on the Tax Audit Module, the Auditor will request the General Ledger and Income Statement to identify accounts that potentially serve as Article 21 Income Tax objects.
Commonly audited accounts include:
Referring to the technical guidelines of SE-65/PJ/2013 and audit best practices, here is the Article 21 equalization workflow:
The first step is to sum all employee-related costs listed in the Commercial Income Statement. The Auditor will check Form 1771-II of the Corporate Income Tax Return under the "Salaries, Wages, Bonuses, etc." line.
Adjustments are needed for differences in accounting and tax treatment. Key items include:
Accounting uses the accrual basis, while PPh 21 is often settled upon payment. Differences in Accrued Salary at the beginning and end of the year must be accounted for to reach the correct taxable base.
If a positive difference exists (Expenses > Reported Base), the Auditor will assume under-reported Article 21 objects. Common causes include:
In the era of Coretax System, data consistency is the best defense. Taxpayers are advised to perform Monthly Self-Equalization and maintain precise documentation for timing differences and non-taxable benefits.
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