Reverse VAT Tax Calculator , Add or Remove VAT Online

Use our reverse VAT tax calculator to remove 5%, 15%, or 20% VAT from any amount. Works for UK, Ireland, UAE, South Africa & more. Fast, free & accurate..

VAT Calculator

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In today’s global economy, understanding reverse VAT tax calculation is essential for businesses, freelancers, and consumers alike. Whether you’re invoicing across borders, filing tax returns, or simply trying to understand how much VAT you’ve paid, the ability to calculate VAT backwards is a powerful financial skill.

Using our reverse VAT calculator online is quick, intuitive, and mobile-friendly. Just follow these simple steps:

  1. Select Your Country Choose from UK, Ireland, UAE, South Africa, or manually enter your VAT rate.
  2. Add Amount Enter the gross amount (price including VAT) you want to reverse.
  3. Set VAT Ratio Pick the applicable VAT percentage — like 5%, 15%, 20%, or 23%.
  4. Add VAT / Remove VAT Choose whether you want to add VAT to a net price or remove VAT from a gross price.
  5. See Instant Result
Reverse VAT Tax Calculator

What Is Reverse VAT Tax Calculator?

Reverse VAT, also known as reverse charge VAT, is the process of calculating the net amount from a VAT-inclusive price. Instead of adding VAT to a base price, you subtract it from the total to find the original value.

This is especially useful when:

  • You only have the gross amount (price including VAT)
  • You need to remove VAT for accounting or reporting
  • You’re dealing with international transactions
  • You want to understand the actual tax burden

How to Use the Reverse VAT Calculator

Our reverse VAT calculator online is designed for simplicity and speed:
Enter the gross amount (price including VAT)
Select your country or manually input the VAT rate
Click “Calculate”
Instantly get:
Net amount (price before VAT)
VAT amount
Reverse VAT formula breakdown
You can also use our reverse VAT calculation formula Excel for bulk entries or download results for your records.

Reverse VAT Calculation Formula

To calculate VAT backwards, use this formula:
Net Amount = Gross Amount / (1 + VAT Rate) VAT Amount = Gross Amount – Net Amount
Example 1: UK 20% VAT
Gross = £120 Net = £120 / 1.2 = £100 VAT = £120 – £100 = £20
Example 2: UAE 5% VAT
Gross = AED 105 Net = AED 105 / 1.05 = AED 100 VAT = AED 5
Example 3: Ireland 23% VAT
Gross = €123 Net = €123 / 1.23 = €100 VAT = €23
This formula works for:
reverse 20 VAT calculator
reverse 15% VAT
reverse 5 VAT calculator
reverse VAT calculator south africa
reverse VAT calculator ireland
reverse VAT calculator uae

Country-Specific VAT Rates (2025)

CountryStandard VAT RateReverse VAT Applicable
United Kingdom20%✅ Yes (Reverse Charge)
Ireland23%✅ Yes
South Africa15%✅ Yes
UAE5%✅ Yes
Kenya16%✅ Yes
Philippines12%✅ Yes
Pakistan17%✅ Yes
France20%✅ Yes

Use Cases for Reverse VAT Calculators

Business Accounting
Calculate net prices for invoices
Prepare accurate VAT returns
Avoid overclaiming input VAT
Freelancers & Contractors
Understand your earnings before tax
Invoice clients across borders
Use reverse VAT calculator UK for CIS schemes
Shoppers & Consumers
See how much VAT you’re paying
Compare prices across countries
Use reverse VAT calculator ireland or south africa
Developers & Analysts
Integrate reverse VAT calculation formula Excel
Build custom apps using reverse tax calculator formula

FAQs Reverse VAT Tax Calculators

How do you calculate reverse VAT?

Divide the gross amount by (1 + VAT rate). For example, £100 / 1.2 = £83.33.

How to reverse 20% tax?

Use the formula: Net = Gross / 1.2. VAT = Gross – Net.

How do I remove 15% VAT from an amount?

Divide the gross amount by 1.15

Can I reverse charge VAT?

Yes, if you’re VAT-registered and buying from abroad. You report both input and output VAT.

How to calculate VAT backwards in Excel?

Use formula: =A1/(1+VAT%) where A1 is gross amount.

What is 20% out of 150?

£30. Net = £120.

What is the concept of reverse VAT?

It shifts VAT payment responsibility from seller to buyer, common in cross-border transactions.