Question 1

How do I add tax to an amount?

Accepted Answer

Tax amount = price x (tax rate / 100). Total = price + tax amount. For example, $100 + 11% tax = $100 + $11 = $111.

Question 2

How do I remove tax from a total?

Accepted Answer

Original price = total / (1 + tax rate / 100). For example, $111 with 11% tax: $111 / 1.11 = $100.

Question 3

What is PPN 11%?

Accepted Answer

PPN (Pajak Pertambahan Nilai) is Indonesia Value Added Tax at 11%, effective since April 2022.

Question 4

Can I use custom tax rates?

Accepted Answer

Yes. Enter any tax rate percentage. Common presets include 5%, 10%, 11% (PPN), 15%, 20%, and 25%.

Question 5

Is my data stored anywhere?

Accepted Answer

No. All calculations happen in your browser. No data is sent to any server.

VAT/Tax Calculator

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