How the calculation works
Enter the required parameters and submit the form. The calculator validates the values, performs the calculation on the server and returns a detailed result.
The calculation is processed for the current HTTP request and does not require registration.
How VAT is calculated
Add VAT: VAT = net amount × rate / 100. Extract VAT from a tax-inclusive total: VAT = gross amount × rate / (100 + rate).
Example
With a net amount of 1,000 and a 20% VAT rate, VAT is 200 and the gross total is 1,200.
Questions and answers
Can I change the VAT rate?
Yes. The rate is an editable input, so the calculator is not tied to one fixed percentage.
What is the difference between adding and extracting VAT?
Adding VAT applies tax to a net base; extracting VAT finds the tax component already included in a gross amount.
When it is useful
Calculate vAT calculator with task-specific inputs and a detailed server-side result. The tool is designed for a practical calculation without registration or a required client-side app.