GST/VAT Calculator
Add or remove GST/VAT from a price at any tax rate.
1000.00Net amount
180.00Tax amount
1180.00Gross amount
How to use GST/VAT Calculator
- 1Enter the price amount.
- 2Enter the tax rate (defaults to 18%, edit for your country's GST/VAT rate).
- 3Switch between 'Add tax' and 'Remove tax' depending on whether your price is net or gross.
Why use this tool
- Works for any tax rate worldwide, not locked to one country's percentage.
- Both directions supported: add tax to a net price, or extract tax from a gross price.
- Shows the tax amount separately from the final total.
Frequently asked questions
What's the difference between adding and removing tax?
Adding tax takes a price excluding tax and calculates the total including tax. Removing tax does the reverse — it takes a tax-inclusive price and works out the original amount and the tax portion within it.
Does this work for VAT outside of GST countries?
Yes — the math for GST and VAT is identical (both are percentage-based consumption taxes), so just enter your local VAT rate.