1. What is PPh21 Monthly Tax Calculator?

Definition: This calculator estimates monthly income tax (PPh21) obligations based on gross income and the effective tax rate (TER) in Indonesia.

Purpose: Helps employees and employers estimate monthly tax deductions for salary payments.

2. How Does the Calculator Work?

The calculator uses the formula:

Where:

• \( \text{PPh21} \) — Monthly income tax amount (IDR)
• \( \text{Gross Income} \) — Total monthly income before tax (IDR)
• \( \text{TER} \) — Effective Tax Rate (decimal, e.g. 0.05 for 5%)

Explanation: The gross income is multiplied by the effective tax rate to calculate the monthly tax obligation.

3. Importance of PPh21 Calculation

Details: Accurate PPh21 calculation ensures compliance with Indonesian tax regulations and proper salary deductions.

4. Using the Calculator

Tips: Enter your gross monthly income in IDR and the effective tax rate (default 0.05 or 5%). All values must be > 0.

5. Frequently Asked Questions (FAQ)

Q1: What is TER (Effective Tax Rate)?
A: TER is the average tax rate applied to your income, considering progressive tax brackets and tax deductions.

Q2: How do I find my TER?
A: TER can be calculated by dividing your annual tax by annual taxable income, or obtained from your employer/accountant.

Q3: Does this include all tax deductions?
A: This simplified calculator uses TER which should already account for standard deductions. For precise calculations, consult a tax professional.

Q4: Is this calculator suitable for annual tax calculation?
A: This calculates monthly amounts. For annual calculations, consider using annual income and accounting for progressive tax brackets.

Q5: What's the current PPh21 tax bracket in Indonesia?
A: As of 2023, Indonesia uses progressive rates from 5% to 30% based on income levels. Check with the tax authority for current rates.