VAT Calculator
Add or extract VAT from an amount.
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📝 About VAT Calculator
The VAT Calculator splits an amount into its net value, VAT and gross total. It works in two directions: add VAT to a price that excludes tax, or extract the VAT already included in a total. The rate defaults to 10%, Korea’s standard VAT rate, but you can enter any rate for other countries.
It is helpful when writing quotes and invoices, checking a tax invoice, setting a VAT-inclusive retail price, or figuring out how much of a receipt total is actually tax.
Adding VAT is straightforward: VAT = net × rate, and gross = net + VAT. Extracting VAT from a total is where people often go wrong. Taking 10% of the total gives too much tax; instead, divide the total by (1 + rate). With a 10% rate, the net amount is total ÷ 1.1 and the VAT is total ÷ 11. For example, 110,000 includes 100,000 net and 10,000 VAT. Displayed amounts are rounded to whole units, so official documents may differ by one unit depending on the rounding rule used.
📘 How to use
- 1
Enter the amount and rate
Type the amount and keep the default 10% rate or enter another one.
- 2
Choose the mode
Select whether the amount excludes VAT (add) or includes VAT (extract).
- 3
Read the breakdown
Net, VAT and gross amounts are shown side by side instantly.
❓ FAQ
How do I find the VAT inside a total that already includes it?
Choose “Amount includes VAT.” At a 10% rate the VAT equals the total divided by 11, not 10% of the total.
Can I use rates other than 10%?
Yes. Enter any rate in the VAT rate field, for example 20% for many European countries.
Why might my result differ by 1 from an invoice?
The calculator rounds to the nearest whole unit, while some invoices truncate fractions. The difference is only a rounding rule.