In the calculation mechanism of Article 21 Income Tax (PPh 21), the first and most crucial step is determining Gross Income. For Permanent Employees, gross income represents the total income received or obtained from the employer before any deductions (such as office costs or pension contributions) are applied.
Accuracy in determining these components is vital, especially with the implementation of the Average Effective Rate (TER) scheme. Under the TER scheme (January–November), gross income is multiplied directly by the effective rate without prior deductions. Errors in defining what constitutes gross income will directly impact the monthly tax over-withholding or under-withholding.
Based on the latest regulations, gross income for Permanent Employees consists of several key elements:
This is the most basic component. Regular income refers to income received periodically, such as basic salary, wages, overtime pay, and all types of allowances (family allowance, structural allowance, meal allowance, transport allowance).
Example: Mr. A receives a basic salary of Rp10,000,000 and a meal allowance of Rp1,000,000 every month. Thus, Rp11,000,000 is the base of regular income within the gross income.
Irregular income is income received once or non-periodically. This component includes the Religious Holiday Allowance (THR), annual bonuses, production bonuses (jasa produksi), tantiem, gratuities, and other similar remuneration.
Example: In April, Mr. A receives THR equivalent to one month's salary (Rp10,000,000). Consequently, in April, Mr. A's Gross Income surges to Salary + Allowances + THR.
Often overlooked, social security and insurance premiums paid by the company for the employee constitute gross income (adding to the employee's taxable income). This includes:
Since the enactment of the Law on Harmonization of Tax Regulations (UU HPP), remuneration in the form of goods (natura) and facilities (kenikmatan) that are not exempted by government regulation are now PPh 21 objects and must be added to gross income.
Example: A company provides a company car facility to a manager who does not hold equity in the firm. If the value of this facility (depreciation, fuel, service) exceeds certain limits or is not exempted, that value must be calculated as part of the manager's gross income.
If the company provides a tax allowance (gross-up method), the value of that allowance is included as gross income. Uniquely, if the company bears the employee's PPh 21 (net method) without an explicit tax allowance, this "tax borne by employer" facility is now considered an amenity (kenikmatan) which is also a PPh 21 object and adds to gross income.
Let's look at the gross income of Mr. B (Permanent Employee) in January:
Mr. B's Gross Income for January PPh 21 Calculation:
Rp15,000,000 + Rp2,000,000 + Rp81,000 + Rp600,000 = Rp17,681,000
This figure of Rp17,681,000 is what will then be multiplied by the TER to determine the monthly tax.
Determining gross income is not merely summing up the take-home pay. Withholding agents must meticulously include "invisible" components like employer-paid insurance premiums and taxable benefits in kind, while being careful not to include non-taxable components like employer-paid pension/JHT contributions.