VAT Calculator
Add VAT to a net amount, or split a gross amount into net + VAT. Use it for quotes, tax invoices, and supplier reconciliation.
How to Use
Choose "Net → Gross" or "Gross → Net" tab. Default rate is 10% (Korea); enter any rate manually.
Thousands separators apply automatically. Results update live.
Three cards (net, VAT, gross) show the breakdown. Use "Copy result" to grab it all in one click.
FAQ
What's Korea's VAT rate?
Standard 10% (general taxation), 0% (zero-rated, e.g., exports), and exempt (no VAT at all). The tool defaults to 10% but lets you enter any rate (Japan 10%, EU country rates, etc.).
How is "Gross → Net" split?
Gross = Net × (1 + rate), so Net = Gross / (1 + rate) and VAT = Gross − Net = Gross × rate / (1 + rate). For 10%: Net = Gross / 1.1.
I see fractional amounts.
Inputs that don't divide evenly produce decimals (e.g., splitting 1,000 at 10% gives 909.09 net). Display rounds to integers; consult your accountant for invoice-level rounding rules.
How about exempt sellers?
Exempt sellers don't charge VAT — set the rate to 0%. Zero-rated (exports) is also 0%, but reporting still applies. Check with a tax professional.
Is anything sent to a server?
No. All calculation runs in your browser; nothing leaves the page.
