How do I add VAT to a price?

Multiply the net (ex-VAT) amount by the VAT rate, then add that tax to the net amount. Use Add VAT mode to do this automatically.

How do I remove VAT from a total?

Divide the gross (inc-VAT) total by (1 + rate). For 20% VAT, divide by 1.20 to get the net amount.

Is VAT the same as sales tax?

Both are consumption taxes, but VAT is typically used in the UK/EU and other regions, while US sales tax is often destination-based. Use this calculator for VAT/GST-style rates and the Sales Tax Calculator for US-style workflows.

Can I calculate VAT for multiple items?

Yes. Enter a per-item amount and set Quantity to multiply before applying VAT.

VAT Calculator — Free Online

About this calculator

A VAT calculator adds or removes value-added tax at a stated rate for tax-exclusive or tax-inclusive prices.

Who should use it: Shoppers and sellers working with VAT-style invoices.

When to use it: Use it when converting between net and gross prices at a known VAT rate.

VAT (value added tax)

VAT = Net × Rate; Gross = Net + VAT; Net = Gross ÷ (1 + Rate)

To add VAT, multiply the net amount by the rate and add the tax. To remove VAT from a gross total, divide by (1 + rate).

Step-by-step

Choose mode
Add VAT to a net price, remove VAT from a gross total, or calculate VAT only.
Enter amount
Use the net (ex-VAT) price or the gross (inc-VAT) total depending on mode.
Set VAT rate
Enter your local standard or reduced VAT rate as a percentage.
Adjust quantity
Multiply identical line items before applying VAT.

Worked example: £100 net at 20% VAT

Add-VAT mode on a £100 net price with a 20% VAT rate.

VAT = £100 × 0.20 = £20
Gross = £100 + £20 = £120

VAT is £20; gross total is £120.

How to interpret the result

Tax-inclusive price ÷ (1 + rate) recovers the net amount; multiplying a gross price by the rate double-counts tax.

Key definitions

Net amount: Price excluding VAT.
Gross amount: Price including VAT.
VAT rate: Percentage tax applied to the taxable net amount.

Common use cases

Invoicing and quotes
Receipts with VAT-inclusive totals
Cross-border price comparisons

Tips

Use remove-VAT mode when you only know the shelf or checkout total.
Confirm whether your goods use a standard or reduced VAT rate.

Common mistakes

Applying VAT twice

Fix: Start from net amounts when adding VAT.

Confusing VAT with US sales tax

Fix: Use the Sales Tax Calculator for US destination-based workflows.

Limitations

Reduced rates and exemptions vary by country and goods.
Not a substitute for accounting software compliance.