Calculator Inputs
Example Data Table
| Scenario | Net Amount | VAT Rate | VAT Amount | Gross Amount |
|---|---|---|---|---|
| Retail sale | USD 1,000.00 | 15% | USD 150.00 | USD 1,150.00 |
| VAT included invoice | USD 500.00 | 10% | USD 50.00 | USD 550.00 |
| Reduced-rate goods | USD 240.00 | 5% | USD 12.00 | USD 252.00 |
| Service with discount | USD 800.00 | 20% | USD 160.00 | USD 960.00 |
Formula Used
Line subtotal = Quantity × Unit Price
Discount amount = Line subtotal × Discount % ÷ 100, or fixed discount entered manually
Transaction before exemptions = Line subtotal − Discount + Shipping + Other taxable charges
Derived taxable base = Transaction before exemptions − Non-taxable amount
VAT amount when net is known = Net Amount × VAT Rate
Gross amount = Net Amount + VAT Amount
Net amount from gross = Gross Amount ÷ (1 + VAT Rate)
VAT extracted from gross = Gross Amount − Net Amount
Inferred VAT rate = (Gross Amount − Net Amount) ÷ Net Amount × 100
How to Use This Calculator
Choose the calculation mode first. Use Add VAT when you know the taxable net amount. Use Extract VAT when the entered price already includes VAT. Use Infer VAT Rate when you know both net and gross values.
Enter either line-item details or a manual net amount. The manual net value overrides the calculated taxable base. For VAT-inclusive workflows, you can also provide a manual gross amount.
Add discounts, shipping, other taxable charges, and any non-taxable portion. Then select a preset or custom rate, set rounding and decimal places, and click Calculate VAT.
The tool shows the result above the form, along with a breakdown table, effective tax share, per-unit figures, and a Plotly graph. Use the CSV and PDF buttons to export the result.
Frequently Asked Questions
1. What does this VAT calculator do?
It calculates VAT from net values, extracts VAT from gross totals, isolates VAT only, and can infer the VAT rate from known net and gross amounts.
2. When should I use manual net amount?
Use it when you already know the exact taxable base and do not want the tool to derive the amount from quantity, unit price, discounts, and charges.
3. What is the difference between net and gross?
Net is the price before VAT. Gross is the final amount after VAT has been added, or the VAT-inclusive total entered for extraction.
4. Can I calculate VAT from a VAT-inclusive price?
Yes. Select the extraction mode, enter the gross amount or VAT-inclusive transaction details, and the tool will split the amount into net and VAT portions.
5. How are discounts treated?
Discounts reduce the line subtotal before VAT is calculated. You can enter either a percentage discount or a fixed amount discount.
6. Why is there a non-taxable amount field?
It lets you remove exempt or non-taxable value from the transaction before VAT is applied, which is useful for mixed invoices.
7. What does effective tax share mean?
It shows what percentage of the gross amount is VAT. This helps you understand the tax burden inside the final total.
8. Can I export the result?
Yes. After calculation, use the CSV button for spreadsheet-friendly data or the PDF button to save a formatted result summary.