Salary Tax for Permanent and Non Permanent Employees
Gusti Ayu Tita P
14 Agustus 2026
Salary tax for permanent and non permanent employees can be subject to different withholding mechanisms in Indonesia. Although both types of workers may receive income from employment, the way their income is paid and their employment status can affect how Article 21 Income Tax or PPh 21 is calculated.
Understanding this difference is useful for employees and employers because the correct classification helps determine the appropriate tax treatment. It also helps employees understand why their tax deductions may differ from those of other workers.
PERMANENT EMPLOYEES
A permanent employee generally receives income regularly from an employer under an ongoing employment relationship. The income can consist of salary, allowances, bonuses, incentives, and other employment-related payments that are subject to the applicable tax rules.
For permanent employees, PPh 21 withholding during tax periods other than the final tax period generally uses the Average Effective Rate or TER. The applicable rate depends on gross monthly income and the employee's relevant TER category based on their PTKP status.
NON PERMANENT EMPLOYEES
A non permanent employee generally receives income based on certain work arrangements, such as the number of working days, units produced, completed work, or other agreed payment methods. Their income may therefore be less regular than that of permanent employees.
The PPh 21 calculation for non permanent employees follows specific provisions based on the type and amount of income received. Therefore, their tax should not automatically be calculated using the same monthly TER approach applied to permanent employees. The payment period and amount of income are important when determining the appropriate withholding method.
KEY DIFFERENCES IN TAX CALCULATION
The main difference is the withholding mechanism used for each type of employee. Permanent employees generally use the monthly TER mechanism during tax periods other than the final period, while non permanent employees are subject to calculation provisions that consider their particular payment arrangements.
For example, a permanent employee with TK/0 status and gross monthly income of IDR 8,000,000 falls into a TER Category A bracket with an effective rate of 1.50 percent. The example withholding would be IDR 8,000,000 × 1.50 percent = IDR 120,000. This example cannot automatically be applied to a non permanent employee because the applicable calculation depends on the nature and amount of the payment.
FACTORS THAT AFFECT THE TAX
Several factors can affect the amount of PPh 21 withheld from both permanent and non permanent employees. These include gross income, employment status, payment period, type of income, and applicable tax provisions.
Accurate employee information is important for employers when determining the correct withholding method. Employees should also review their payslips and tax withholding documents to make sure their income and tax information has been recorded correctly.
CONCLUSION
Salary tax for permanent and non permanent employees can differ because each category has different employment and payment characteristics. Permanent employees generally use TER for monthly PPh 21 withholding during tax periods other than the final period, while non permanent employees follow calculation provisions appropriate to their payment arrangements.
The correct tax treatment depends on employee status, gross income, payment period, and applicable regulations. Understanding these differences helps employees interpret their tax deductions and helps employers apply the appropriate payroll tax calculation.
About the Author
Gusti Ayu Tita P
Author — STEKOM University
An active author focused on academic issues, educational technology, and human resource development in the campus environment.