Indonesia Income Tax Guide 2026: PPh21 Explained
Last reviewed: July 2026
Quick Answer
Indonesia taxes personal income through PPh21, a progressive system with rates rising from 5% to 35% as income increases. A non-taxable allowance called PTKP is deducted first, so lower earners often pay little or nothing. Employers use the monthly TER withholding method, and employees and self-employed people are treated differently.
Rates as of 2026. Verify with official sources before filing.
Indonesia taxes personal income through a progressive system called PPh21, with rates rising from 5% to 35% as income increases. Before any tax applies, a non-taxable allowance known as PTKP is subtracted, so lower earners often pay little or nothing. This guide explains the 2026 brackets, how PTKP works, the monthly TER withholding method, and how employees and self-employed people are treated differently.
How Does Indonesia Income Tax Work?
PPh21 is the tax on income from employment, services, and pensions received by individuals. It is calculated on your annual taxable income, which is your gross income minus allowable deductions and your PTKP allowance. Only the slice of income that falls within each bracket is taxed at that bracket's rate, so the top rate applies only to the highest portion of income.
The tax year follows the calendar year, from January 1 to December 31. For employees, the employer withholds PPh21 every month and remits it to the tax office. Everyone then files an annual return, called the SPT Tahunan, in the first quarter of the following year to reconcile what was withheld against what is actually owed.
What Are the Indonesia Income Tax Brackets for 2026?
The following progressive rates apply to annual taxable income for resident individuals under the Harmonised Tax Law framework.
| Annual Taxable Income (IDR) | Rate |
|---|---|
| 0 to 60,000,000 | 5% |
| 60,000,001 to 250,000,000 | 15% |
| 250,000,001 to 500,000,000 | 25% |
| 500,000,001 to 5,000,000,000 | 30% |
| Above 5,000,000,000 | 35% |
Taxable income here means income after the PTKP allowance has been deducted. A person earning IDR 120 million a year, single with no dependents, would subtract the IDR 54 million PTKP to reach IDR 66 million of taxable income, then pay 5% on the first IDR 60 million and 15% on the remaining IDR 6 million.
What Is PTKP and How Much Can You Exempt?
PTKP is the non-taxable income threshold, the amount you can earn before any PPh21 applies. It depends on your marital status and number of dependents. The base figures are:
- Individual taxpayer: IDR 54,000,000 per year
- Married taxpayer: additional IDR 4,500,000
- Each dependent (up to a maximum of three): additional IDR 4,500,000
So a married person with two dependents has a PTKP of IDR 54,000,000 plus IDR 4,500,000 plus two lots of IDR 4,500,000, which totals IDR 67,500,000. Only income above that figure is subject to tax. Employees also deduct a standard occupational cost allowance of 5% of gross income, capped at IDR 6,000,000 per year, before PTKP.
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What Is the TER Monthly Withholding Method?
Since January 2024, employers calculate monthly PPh21 using a simplified system called TER, the average effective rate. Rather than running the full annual progressive calculation each month, the employer looks up a single percentage from a TER table based on the employee's gross monthly income and PTKP category.
This TER rate is applied to gross monthly income for the months of January through November. In December, the employer performs the full annual progressive calculation and adjusts the final month's withholding so that the total for the year matches the correct annual tax. The TER method does not change how much tax you owe overall. It only smooths and simplifies the monthly withholding.
How Is Tax Different for Employees and the Self-Employed?
For employees, PPh21 is withheld and paid by the employer every month. At year end you receive a form called the 1721-A1, which summarises your income and the tax already withheld. You use this to complete your annual SPT, and in most cases no further payment is due because withholding has covered the liability.
Self-employed individuals, freelancers, and business owners handle their own tax. Many use the deemed-profit norms known as NPPN, which apply a fixed percentage to turnover to estimate profit, while others keep full books. They pay tax in monthly instalments called PPh25 across the year and reconcile everything in the annual return. Small businesses with turnover below the threshold may instead use the final 0.5% PPh Final regime on gross turnover, which is simpler but works differently from the progressive brackets.
How Do You File Your Annual Return?
Individuals file the SPT Tahunan through the DJP Online portal at djponline.pajak.go.id. You will need a tax identification number, now integrated with the national identity number, and an activation code called an EFIN. Employees generally complete the 1770 S or 1770 SS form using the figures from their 1721-A1, while those with business income use form 1770.
The deadline for individuals is March 31 of the year following the tax year. Filing late attracts an administrative penalty, so it is worth preparing early, especially if you need to gather records for reliefs or business income.
Frequently Asked Questions
What are the Indonesia income tax brackets for 2026?
Indonesia uses progressive rates on annual taxable income: 5% up to IDR 60 million, 15% on IDR 60 million to 250 million, 25% on IDR 250 million to 500 million, 30% on IDR 500 million to 5 billion, and 35% on income above IDR 5 billion.
What is PTKP in Indonesia tax?
PTKP is the non-taxable income threshold. A single person with no dependents has a PTKP of IDR 54 million per year. Marriage adds IDR 4.5 million and each dependent adds IDR 4.5 million, up to three dependents. Only income above your PTKP is taxed.
What is the TER method for PPh21?
TER stands for the average effective rate. Since 2024, employers withhold monthly PPh21 using a simplified TER table based on gross monthly income and PTKP status for January to November, then reconcile with the full progressive calculation in December.
How is PPh21 different for self-employed people?
Employees have PPh21 withheld and remitted by their employer each month. Self-employed individuals and freelancers calculate their own tax, often using the NPPN deemed-profit norms or full bookkeeping, pay in instalments through PPh25, and report everything in the annual SPT.
When is the Indonesia tax filing deadline?
Individuals must file the annual SPT Tahunan by March 31 of the following year through the DJP Online portal. Employees receive a 1721-A1 form from their employer summarising income and PPh21 withheld, which is used to complete the return.