Sales Tax Calculator
Add sales tax, VAT or GST to a price, or take it out of a total, using the rate where you shop.
About the Sales Tax Calculator
Sales tax in the US, and VAT or GST in most other countries, is a percentage added to the price of goods and services. In the US, prices are usually shown before tax and the tax is added at the till; in the UK, EU, India, Australia and many other places, shop prices already include it.
To find the price before tax from a tax-inclusive total, divide by 1 plus the rate. Taking the rate off the total (for example 20% of £120) gives the wrong answer.
The formula
Tax = Price × Rate, Total = Price × (1 + Rate)
- Price
- amount before tax
- Rate
- tax rate as a decimal (8.25% = 0.0825)
- Total
- amount including tax
Reverse: Price = Total ÷ (1 + Rate). Tax inside a total = Total × Rate ÷ (1 + Rate).
Standard rates in common countries
| Country | Tax | Standard rate | Notes |
|---|---|---|---|
| United States | Sales tax | 0% – 7.25% state | Set by each state; cities and counties add more. Alaska, Delaware, Montana, New Hampshire and Oregon have no state sales tax. |
| India | GST | 18% | Since 22 Sep 2025: 5% for essentials, 18% standard, 40% for luxury and sin goods; some items 0%. |
| United Kingdom | VAT | 20% | Reduced 5%; zero rate on most food and children's clothes. |
| Canada | GST / HST | 5% – 15% | 5% GST; HST 13% in Ontario, 14% in Nova Scotia, 15% in NB, NL and PEI; Quebec and others add provincial tax. |
| Australia | GST | 10% | Basic food, most health and education are GST-free. |
| Germany | VAT | 19% | Reduced 7%. |
| France | VAT | 20% | Reduced 10%, 5.5% and 2.1%. |
| UAE | VAT | 5% | |
| Singapore | GST | 9% | Since 1 Jan 2024. |
| Japan | Consumption tax | 10% | 8% on food and drink to take away. |
Last reviewed November 2026. Taxes change; confirm with your tax authority before filing or invoicing.
How to read your result
- Choose “Price before tax” to add tax, or “Total with tax” to take it out.
- Tax is the amount that goes to the government.
- For US purchases, add your state, county and city rates together.
Worked example
A $250 purchase where the combined rate is 8.875%
- Tax = 250 × 0.08875 = $22.19
- Total = 250 + 22.19 = $272.19
- Reverse: 272.19 ÷ 1.08875 = $250.00
Questions people ask
How do I remove VAT from a price?
Divide the price by 1 + the VAT rate. For 20% VAT: £120 ÷ 1.2 = £100 before VAT, so the VAT is £20.
Why is the tax different from my receipt by a cent?
Shops round tax per item or per receipt, and some round up. Small rounding differences are normal.
What is the sales tax in my US city?
Add the state rate to your county and city rates. Many state revenue departments publish a lookup by address.