VAT Calculator

VAT Calculator
Tax

VAT Calculator

Please enter a valid amount and VAT rate (both zero or greater).
Gross Amount (incl. VAT)
—
Net Amount (excl. VAT)
—
VAT Amount
—
Gross Amount (incl. VAT)
—
VAT Rate
—
Disclaimer: This calculator performs straightforward VAT arithmetic using the rate you enter. VAT rates, exemptions, and rules vary by country and product/service category and change over time. Confirm the correct rate for your jurisdiction with official tax guidance before using these figures for invoicing or filing.

VAT Calculator: How to Add or Remove VAT From Any Price

Quick summary: A VAT calculator adds value-added tax to a net price by multiplying by (1 + VAT rate), or removes VAT from a gross price by dividing by (1 + VAT rate) — never by subtracting the percentage directly. This guide breaks down both formulas, walks through worked examples, and explains the single most common VAT mistake that overstates tax on every invoice it touches.

What Is a VAT Calculator?

A VAT calculator is a tool that computes the value-added tax component of a price, working in either direction: finding the gross price (including VAT) from a net price, or deducing the net price and VAT amount from a gross, VAT-inclusive price. Value Added Tax (VAT) itself is a consumption tax applied to the sale of goods and services at each stage of production or distribution, though it’s ultimately paid by the end consumer.

It’s genuinely useful for businesses pricing goods and managing invoices, shoppers checking how much tax is baked into a purchase, and accountants reconciling financial statements and reclaiming input tax.

The Core VAT Formulas

There are three formulas every VAT calculator relies on:

1. Finding the VAT amount from a net price:

VAT Amount = Net Price × (VAT Rate / 100)

2. Adding VAT to get the gross price:

Gross Price = Net Price × (1 + VAT Rate / 100)

3. Removing VAT to get the net price from a gross, tax-inclusive price:

Net Price = Gross Price / (1 + VAT Rate / 100)

That third formula is the one people get wrong most often — and getting it wrong has real financial consequences, covered below.

Worked Example 1: Adding VAT to a Net Price

A business sells an item for a net price of £100, and the applicable VAT rate is 15%.

VAT Amount = £100 × 15% = £100 × 0.15 = £15
Gross Price = Net Price + VAT Amount = £100 + £15 = £115

Result: The VAT-inclusive price is £115. This is mathematically identical to simply multiplying £100 by 1.15.

Worked Example 2: Removing VAT From a Gross Price

A gross (VAT-inclusive) price is £120, and the VAT rate is 20%.

Net Price = Gross Price ÷ (1 + VAT Rate)
Net Price = £120 ÷ 1.20
Net Price = £100
VAT Amount = Gross Price − Net Price = £120 − £100 = £20

Result: The net price is £100, and the VAT included in the £120 total is £20.

Worked Example 3: Extracting VAT Directly From a Gross Price

Sometimes you just need the tax component, not the full net price. There’s a direct formula for that:

VAT Amount = Gross Price × VAT Rate / (100 + VAT Rate)

For a gross price of £240 at 20% VAT:

VAT = £240 × 20 / 120 = £240 ÷ 6 = £40

Result: £40 of the £240 total is VAT, leaving a net price of £200.

The Single Most Common VAT Mistake

The most frequent error people make is removing VAT by subtracting the percentage directly from the gross price, instead of dividing. Here’s the difference in practice, using a gross price of £120 at 20% VAT:

  • Incorrect method: £120 × 0.20 = £24 subtracted → £96 “net” — this is wrong.
  • Correct method: £120 ÷ 1.20 = £100 net — the correct answer.

These give different results because the VAT rate applies to the net price, not the gross price. The consequences aren’t just theoretical: on a £50,000 invoice at 20% VAT, this subtraction error overstates the tax component by £2,000 and understates the recoverable net amount by the same figure — for a VAT-registered business, that means the input tax reclaim itself is wrong, not just a bookkeeping rounding issue.

Why VAT Rates Vary So Much

VAT isn’t applied uniformly everywhere, or even uniformly within a single country. In many countries there are different VAT levels for different categories of products and services — the standard rate might be 20%, while books might be taxed at 5% and travel or accommodation services at 10%. Certain categories are commonly excluded from VAT altogether, such as educational services, basic foods, and in some cases industries considered essential to the broader economy, like tourism in countries where it makes up a significant share of GDP.

Rates also vary significantly by country. As of 2026, Hungary has the world’s highest standard VAT rate at 27%, while the EU average sits at 21.9%.

Frequently Asked Questions

How do I calculate VAT on a net price?

Multiply the net price by the VAT rate as a decimal (rate ÷ 100), then add that amount to the net price to get the gross, VAT-inclusive total.

How do I remove VAT from a price that already includes it?

Divide the gross price by (1 + VAT rate as a decimal) — never subtract the VAT percentage directly from the gross price, since that produces an incorrect, inflated result.

Why can’t I just subtract the VAT percentage from the gross price?

Because VAT is calculated as a percentage of the net price, not the gross price — subtracting a flat percentage from the gross overstates the true VAT amount and understates the net price.

What’s the quickest way to find just the VAT amount in a gross price?

Use VAT Amount = Gross Price × VAT Rate ÷ (100 + VAT Rate). At 20% VAT, this simplifies to Gross Price ÷ 6.

Do all products get taxed at the same VAT rate?

No. Many countries apply reduced VAT rates to specific categories like books, food, or travel services, and some categories, such as basic educational services, may be exempt from VAT entirely.

Which country has the highest VAT rate?

As of 2026, Hungary has the world’s highest standard VAT rate at 27%, compared to an EU average of 21.9%.

Related Calculators

Conclusion

A VAT calculator solves a problem that looks simple but catches even experienced accountants: adding VAT is straightforward multiplication, but removing it requires division, not subtraction. Once you understand the three core formulas — VAT Amount = Net × Rate, Gross = Net × (1 + Rate), and Net = Gross ÷ (1 + Rate) — you can confidently price products, read VAT-inclusive invoices, and avoid the single most common VAT error that quietly overstates tax and understates recoverable amounts on every transaction it touches.