Vat Calculator

The VAT Calculator works in two directions: Add VAT (compute gross from a net amount) and Remove VAT (extract net from a gross amount). It accepts an Amount and a VAT rate, with preset buttons for 1%, 5%, 10%, 13%, 17%, and 20% plus a Custom rate entry. It returns Net Amount, VAT Amount, and Gross Amount, each rounded to two decimals and tappable to copy.

1. Pick a mode: 'Add VAT' or 'Remove VAT'. 2. Enter the Amount (net for Add mode, gross for Remove mode). 3. Choose a preset VAT rate (1/5/10/13/17/20%) or click Custom and type any rate from 0 to 100 in 0.1 steps. 4. Read the live result and tap any of the three output rows to copy it. Click Reset to clear inputs back to the 13% default.

Add VAT mode: VAT Amount = Amount × Rate / 100; Gross = Amount + VAT Amount; Net = Amount. Remove VAT mode: Net Amount = Amount / (1 + Rate / 100); VAT Amount = Amount − Net Amount; Gross = Amount. All three outputs are rounded to two decimals using Math.round(value × 100) / 100. The summary line shows the full equation, e.g. '100.00 + 13% VAT = 113.00' or '113.00 − 13% VAT = 100.00'.