Note : This calculator estimates VAT from the rate you enter. It does not verify whether a product is taxable, exempt, zero-rated, reverse-charged, or subject to a special local VAT/GST rule.

Use this VAT Calculator to add VAT, remove VAT, or calculate the VAT amount from a net or gross price. Enter the VAT rate and any known value, such as net price, gross price, or tax amount, and the calculator helps estimate the related VAT values instantly.

Reviewed by: AjaxCalculators Editorial Team
Last updated: April 26, 2026
Method source: Standard VAT relationships using net price, VAT rate, VAT amount, and gross price
Editorial standards: AjaxCalculators Editorial Policy

What This VAT Calculator Calculates

This calculator estimates:

• Net price before VAT
• VAT amount
• Gross price including VAT
• VAT-inclusive price
• VAT-exclusive price

The live tool lets you enter or edit the gross price, net price, or VAT amount. It then syncs the other values using the VAT rate you enter. The calculator also includes quick VAT rate buttons such as 5%, 12%, 15%, and 20%.

What VAT Means

VAT stands for Value Added Tax. It is a consumption tax added to many goods and services. The buyer usually pays VAT as part of the final price, while registered businesses may collect and report VAT according to the rules in their country or region.

VAT is often shown as a percentage rate. For example, if the VAT rate is 20%, a product with a net price of 100 would have VAT of 20 and a gross price of 120.

How the VAT Calculator Works

1) Add VAT to a Net Price

If you know the price before VAT, the calculator can add VAT to find the gross price.

VAT amount = net price × VAT rate

Gross price = net price + VAT amount

Or directly:

Gross price = net price × (1 + VAT rate)

For example, if the net price is 100 and the VAT rate is 20%:

VAT amount = 100 × 0.20 = 20
Gross price = 100 + 20 = 120

2) Remove VAT From a Gross Price

If you know the price including VAT, the calculator can remove VAT to find the net price.

Net price = gross price ÷ (1 + VAT rate)

VAT amount = gross price − net price

For example, if the gross price is 120 and the VAT rate is 20%:

Net price = 120 ÷ 1.20 = 100
VAT amount = 120 − 100 = 20

3) Find VAT Amount

The VAT amount is the difference between the gross price and the net price.

VAT amount = gross price − net price

If you start from a net price, VAT amount can also be calculated as:

VAT amount = net price × VAT rate

4) Reverse VAT Rate Check

If you know both the net price and VAT amount, the VAT rate can be checked using:

VAT rate = VAT amount ÷ net price × 100

This is useful when checking whether a tax amount matches the expected VAT percentage.

Net Price vs Gross Price

Net price means the price before VAT is added.

Gross price means the final price after VAT is included.

For example, if a product has a net price of 200 and VAT is 10%, the VAT amount is 20 and the gross price is 220.

Add VAT vs Remove VAT

Adding VAT and removing VAT are not the same operation.

To add VAT, multiply the net price by the VAT rate and add the result.

To remove VAT, divide the gross price by 1 plus the VAT rate.

For example, with a 20% VAT rate:

• Adding 20% VAT to 100 gives 120.
• Removing 20% VAT from 120 gives 100.

A common mistake is to remove VAT by subtracting 20% from the gross price. That is not correct. If a price already includes 20% VAT, the VAT portion is 20 out of 120, not 20 out of 100.

Currency Selector Note

The currency selector changes the displayed currency symbol only. It does not perform currency exchange conversion.

For example, changing the symbol from USD to EUR does not convert dollars into euros. Use values in the currency you want to calculate.

Assumptions and Important Notes

• This calculator uses the VAT rate entered by the user.
• It assumes the item or service is taxable at the selected VAT rate.
• It does not verify whether a product is standard-rated, reduced-rated, zero-rated, exempt, or outside the scope of VAT.
• It does not calculate VAT returns, input VAT, output VAT, reverse charge, import VAT, or cross-border VAT treatment.
• It does not determine whether a business must register for VAT.
• It does not perform currency conversion.
• VAT/GST rates and rules vary by country, region, product type, customer location, and business status.

Worked Example: Add VAT

Suppose the net price is 250 and the VAT rate is 20%.

Step 1: Convert VAT rate to decimal
20% = 0.20

Step 2: Calculate VAT amount
VAT amount = 250 × 0.20 = 50

Step 3: Calculate gross price
Gross price = 250 + 50 = 300

So, a net price of 250 with 20% VAT gives a VAT amount of 50 and a gross price of 300.

Worked Example: Remove VAT

Suppose the gross price is 300 and the VAT rate is 20%.

Step 1: Convert VAT rate to decimal
20% = 0.20

Step 2: Add 1 to the VAT rate
1 + 0.20 = 1.20

Step 3: Calculate net price
Net price = 300 ÷ 1.20 = 250

Step 4: Calculate VAT amount
VAT amount = 300 − 250 = 50

So, a VAT-inclusive price of 300 at 20% VAT contains a net price of 250 and VAT of 50.

How to Use This VAT Calculator

1. Select the currency symbol you want to display.
2. Enter the VAT rate, or choose one of the quick rate buttons.
3. Enter the gross price if you want to remove VAT.
4. Enter the net price if you want to add VAT.
5. Enter the tax amount if you want the calculator to sync the related values.
6. Review the net price, VAT amount, and gross price.
7. Use the refresh button if you want to clear the calculation and start again.

How to Interpret the Result

Net price is the price before VAT.

VAT amount is the tax added to the net price.

Gross price is the final price including VAT.

If the gross price is higher than expected, check whether you used the correct VAT rate and whether the product or service is actually taxable at that rate.

VAT Rate Examples

VAT rates differ by country and by product or service category. Some countries use a standard VAT rate for most goods and services, while reduced or zero rates may apply to specific items.

For example, some goods may be standard-rated, some may be reduced-rated, and some may be zero-rated or exempt depending on local tax law. Always confirm the correct rate with the official tax authority for your location.

Practical Uses of a VAT Calculator

• add VAT to a net price
• remove VAT from a gross price
• calculate VAT amount for an invoice
• check whether a VAT-inclusive price is correct
• compare prices before and after VAT
• estimate tax on a product or service
• prepare quick business, shopping, or bookkeeping estimates

Common Mistakes to Avoid

• Do not subtract the VAT percentage directly from the gross price when removing VAT.
• Do not assume every product uses the same VAT rate.
• Do not use a VAT rate from one country for another country without checking the rules.
• Do not confuse VAT-exempt with zero-rated; they can have different tax treatment for businesses.
• Do not treat the currency selector as an exchange-rate converter.
• Do not use this calculator as a VAT return or tax-compliance tool.
• Do not rely on preset rates if your jurisdiction or product category uses a different VAT rate.

Formula Summary

References

1. AjaxCalculators live VAT Calculator
2. European Commission: VAT rates in the EU
3. Your Europe: VAT rules and rates
4. GOV.UK: VAT rates
5. OECD: Consumption taxes and VAT overview

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Tax note: This calculator is for educational, shopping, invoicing, and planning use only. It estimates VAT from the values entered and does not provide tax, legal, accounting, bookkeeping, or compliance advice. Actual VAT treatment can depend on country, region, product category, customer location, business registration status, exemption rules, reverse-charge rules, import/export rules, invoice requirements, and current tax law. For official VAT decisions, check your local tax authority or speak with a qualified tax professional.