VAT & GST Calculator — Add or Remove Tax Instantly
Free online VAT and GST calculator for any country and any rate. Works for UK VAT (20%), UAE VAT (5%), Australian GST (10%), Indian GST, Canadian HST, US Sales Tax — and any custom rate worldwide.
VAT / Tax calculator
VAT rates around the world
| Country | Standard rate | Reduced | Name |
|---|---|---|---|
| United Kingdom | 20% | 5% / 0% | VAT |
| UAE | 5% | 0% | VAT |
| Saudi Arabia | 15% | — | VAT |
| Australia | 10% | 0% | GST |
| India | 18% | 5% / 12% | GST |
| Canada | 5% + provincial | 0% | GST/HST |
| New Zealand | 15% | 0% | GST |
| Singapore | 9% | — | GST |
| Germany | 19% | 7% | MwSt |
| France | 20% | 5.5% / 10% | TVA |
| Ireland | 23% | 13.5% / 9% | VAT |
| South Africa | 15% | 0% | VAT |
How VAT and GST work
VAT and GST are consumption taxes added to the sale price of goods and services. Despite different names, they work identically — a percentage is charged by the seller and paid to the government. Businesses that are VAT-registered charge VAT to customers and reclaim VAT on their own purchases, paying only the difference.
Adding VAT (tax-exclusive price)
Formula: Total = Price × (1 + rate). Example: £500 + 20% VAT = £500 × 1.20 = £600. The £100 VAT is visible separately.
Removing VAT (tax-inclusive price)
Formula: Ex-VAT = Total ÷ (1 + rate). Example: £600 ÷ 1.20 = £500 ex-VAT. A common mistake is subtracting 20% directly — that gives £480, not £500. Always divide.
VAT registration: In the UK, businesses must register for VAT when taxable turnover exceeds £90,000/year. In UAE, the threshold is AED 375,000 annual turnover.
Frequently asked questions
VAT (Value Added Tax) is a consumption tax. To add VAT: Price × (1 + rate). To remove VAT from an inclusive price: Total ÷ (1 + rate). Example: £120 ÷ 1.20 = £100 ex-VAT.
Standard UK VAT is 20%. Reduced rate 5% applies to home energy. Zero rate (0%) covers most food and children's clothing. Registration threshold: £90,000 annual turnover.
GST is the same concept as VAT but named differently: Australia 10%, Canada 5% federal, India 5-28%, New Zealand 15%, Singapore 9%. The calculation method is identical.
Divide the VAT-inclusive total by (1 + rate). Example: £120 at 20% VAT → £120 ÷ 1.20 = £100 ex-VAT. The VAT portion is £20. A common mistake is multiplying by 80% instead — this gives a wrong answer.
UAE charges 5% VAT (introduced January 2018). Saudi Arabia charges 15% (raised from 5% in 2020). Bahrain 10%. All calculated identically to VAT anywhere else.