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VAT / GST Calculator

Processed in your browser

A VAT calculator (also used for GST) adds tax to a net price or removes it from a gross price. Pick a common rate or type a custom percentage. Net, tax, and gross update in the browser—this is arithmetic, not tax advice.

What this tool does

A VAT calculator (also used for GST) adds tax to a net price or removes it from a gross price. Pick a common rate or type a custom percentage. Net, tax, and gross update in the browser—this is arithmetic, not tax advice.

Features

  • Tax exclusive and inclusive modes
  • Common VAT/GST rates
  • Custom rate
  • Net, tax, and gross

How to calculate VAT or GST

  1. Choose Add tax (price is exclusive) or Remove tax (price already includes VAT/GST).
  2. Enter the amount and pick a rate, or type a custom percentage.
  3. Click Calculate to see net, tax, and gross.
  4. Copy the figures into an invoice or quote.

Why Toolstik

Add-tax and remove-tax are separate modes with the formulas on the page. Common rates are presets, not a locked country database that gets a rate wrong.

Example: add 20% VAT

Input
Net $100 · rate 20% · add tax
Result
Tax $20.00 · Gross $120.00

Common uses

  • Add 20% VAT to a net freelance fee before sending an invoice.
  • Strip GST from a tax-inclusive quote to see the net amount.
  • Check a sales-tax line when a client asks for a breakdown.

Limitations

  • Rates are not legal advice; confirm the rate that applies to your sale.
  • Does not handle multiple mixed rates on one invoice.

Privacy

Amounts never leave your browser.

Frequently asked questions

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