GST / VAT Calculator
Add GST: Total = Amount × (1 + Rate/100)
What Is GST?
GST stands for Goods and Services Tax. It is a consumption tax charged on the sale of goods and services. GST is added to the price of a product or service at each stage of the supply chain, but the final consumer ultimately bears the full cost. Businesses collect GST on behalf of the government and remit it periodically through tax returns.
GST is known by different names in different countries — VAT (Value Added Tax) in Europe and many other regions, IVA in Mexico, Argentina, and Chile, SST in Malaysia, PPN in Indonesia, and Consumption Tax in Japan — but the underlying calculation method is the same in all cases.
Unlike a simple sales tax applied only at the point of final sale, GST uses an input tax credit system. Businesses pay GST on their purchases (input tax) and collect GST on their sales (output tax). They remit only the difference to the government, which prevents the tax from cascading through the supply chain.
How to Use This GST Calculator
This calculator has two modes. Select the one that matches your situation:
Add GST Mode
Use this mode when you have a price that does not include GST and you want to find the final price the customer will pay. Enter the original amount, select your country, and the calculator instantly shows the GST amount and the GST-inclusive total.
Example: A product costs $500 before GST. At a 10% GST rate, the GST amount is $50 and the customer pays $550 in total.
Remove GST Mode
Use this mode when you have a GST-inclusive price and need to find the original pre-GST price and the exact GST component. This is useful for business expense claims, invoice reconciliation, and accounting purposes.
Example: A receipt shows a total of $550 including 10% GST. The original price was $500 and the GST component is $50.
GST and VAT Formula
The formulas used by this calculator are straightforward:
Adding GST to a price:
GST Amount = Original Price × (GST Rate ÷ 100)
Total Price = Original Price + GST Amount
Or simply: Total Price = Original Price × (1 + GST Rate ÷ 100)
Removing GST from an inclusive price:
Original Price = Inclusive Price ÷ (1 + GST Rate ÷ 100)
GST Amount = Inclusive Price − Original Price
A common mistake is to calculate the GST component by simply multiplying the inclusive price by the GST rate. This gives the wrong answer. Always divide the inclusive price by (1 + rate) first to find the correct original price, then subtract to find the tax portion.
GST and VAT Rates by Country
Tax rates vary significantly around the world. Below is a complete reference of the standard GST or VAT rate for every country supported by this calculator.
Asia Pacific
| Country | Tax Name | Standard Rate | Notes |
|---|---|---|---|
| Australia | GST | 10% | Administered by the ATO. Most goods and services are taxable. Fresh food, medical services, and education are GST-free. |
| New Zealand | GST | 15% | One of the most comprehensive GST systems in the world with very few exemptions. Administered by Inland Revenue (IR). |
| Singapore | GST | 9% | Rate increased from 8% to 9% in January 2024. Administered by IRAS. |
| India | GST | 0%, 5%, 12%, 18%, 28% | India uses a multi-slab GST system. Essential goods attract 0–5%, standard goods 12–18%, and luxury or sin goods 28%. Administered by GSTN. |
| Malaysia | SST | 6% | Sales and Service Tax replaced GST in 2018. A 8% service tax applies to certain services from 2024. |
| Philippines | VAT | 12% | Administered by the Bureau of Internal Revenue (BIR). Various goods and services are VAT-exempt or zero-rated. |
| Thailand | VAT | 7% | The standard rate is 10% but has been reduced to 7% since 1999 and is regularly extended. |
| Indonesia | PPN | 11% | Rate increased from 10% to 11% in April 2022. A further increase to 12% is planned. |
| Pakistan | GST | 17% | Federal GST administered by FBR. Provinces also levy their own services tax. |
| Bangladesh | VAT | 15% | Administered by the National Board of Revenue (NBR). |
| Sri Lanka | VAT | 18% | Rate increased from 15% to 18% in 2024. |
| Japan | Consumption Tax | 10% | A reduced rate of 8% applies to food and non-alcoholic beverages. Administered by the NTA. |
| South Korea | VAT | 10% | Administered by the NTS. Basic foodstuffs and medical services are exempt. |
| China | VAT | 13% | Multiple rates: 13% standard, 9% for agriculture and utilities, 6% for services. Administered by the STA. |
Europe
| Country | Tax Name | Standard Rate | Notes |
|---|---|---|---|
| United Kingdom | VAT | 20% | Administered by HMRC. Reduced rate of 5% applies to domestic energy and children's car seats. Zero rate for food and children's clothing. |
| Germany | MwSt / USt | 19% | Reduced rate of 7% for food, books, and cultural goods. Administered by the Bundeszentralamt für Steuern. |
| France | TVA | 20% | Reduced rates of 10%, 5.5%, and 2.1% apply to food, medicines, and press publications. |
| Italy | IVA | 22% | Reduced rates of 10% and 5% for food, pharmaceuticals, and some services. |
| Spain | IVA | 21% | Reduced rates of 10% and 4% for food, medicines, and books. |
| Netherlands | BTW | 21% | Reduced rate of 9% for food, medicines, and books. |
| Sweden | Moms | 25% | Reduced rates of 12% and 6% for food, transport, and cultural events. |
| Norway | MVA | 25% | Reduced rate of 15% for food and 12% for passenger transport and accommodation. |
| Denmark | Moms | 25% | One of the highest VAT rates in the world. Very few reduced rates apply. |
| Finland | ALV | 25.5% | Rate increased from 24% to 25.5% in September 2024. Reduced rates of 14% and 10% apply. |
| Poland | PTU / VAT | 23% | Reduced rates of 8% and 5% for food, medicines, and books. |
| Portugal | IVA | 23% | Reduced rates of 13% and 6% for food and medicines. |
| Belgium | BTW / TVA | 21% | Reduced rates of 12%, 6%, and 0% for food, medicines, and newspapers. |
| Austria | MwSt / USt | 20% | Reduced rate of 10% for food, books, and passenger transport. |
| Switzerland | MWST / TVA | 8.1% | One of the lowest VAT rates in Europe. Reduced rate of 2.6% for food and 3.8% for accommodation. |
| Ireland | VAT | 23% | Reduced rates of 13.5% and 9% for tourism, hospitality, and certain goods. |
| Russia | NDS | 20% | Reduced rate of 10% for food, medicines, and children's goods. |
| Turkey | KDV | 20% | Rate increased from 18% to 20% in 2023. Reduced rates of 10% and 1% for some goods. |
Americas
| Country | Tax Name | Standard Rate | Notes |
|---|---|---|---|
| Canada | GST | 5% | Federal GST of 5%. Most provinces also charge a provincial sales tax (PST) or Harmonized Sales Tax (HST) of up to 15% combined. |
| Mexico | IVA | 16% | A reduced rate of 0% applies to basic food and medicines. Border regions may use a reduced rate. |
| Brazil | ICMS | ~17% | Brazil has a complex multi-tier tax system. ICMS is a state-level tax and rates vary by state and product category. |
| Argentina | IVA | 21% | Reduced rates of 10.5% apply to certain goods and services including food and medicines. |
| Chile | IVA | 19% | One of the more straightforward VAT systems in Latin America with few exemptions. |
| Colombia | IVA | 19% | Reduced rates of 5% apply to certain goods. Basic food and medicines are exempt. |
Middle East & Africa
| Country | Tax Name | Standard Rate | Notes |
|---|---|---|---|
| United Arab Emirates | VAT | 5% | VAT introduced in January 2018. Administered by the Federal Tax Authority (FTA). Healthcare, education, and certain food items are zero-rated. |
| Saudi Arabia | VAT | 15% | Rate tripled from 5% to 15% in July 2020. Administered by ZATCA. |
| South Africa | VAT | 15% | Rate increased from 14% to 15% in 2018. Administered by SARS. Basic foodstuffs are zero-rated. |
| Egypt | VAT | 14% | VAT replaced the general sales tax in 2016. Administered by the Egyptian Tax Authority. |
| Kenya | VAT | 16% | Administered by the Kenya Revenue Authority (KRA). Basic foodstuffs and medical supplies are zero-rated. |
| Nigeria | VAT | 7.5% | Rate increased from 5% to 7.5% in 2020. Administered by the Federal Inland Revenue Service (FIRS). |
India GST Slab Rates Explained
India has one of the most complex GST systems in the world, using five different tax slabs depending on the category of goods or services. The GST Council reviews and revises slab allocations periodically.
| GST Slab | Category of Goods and Services |
|---|---|
| 0% (Nil Rate) | Essential food items (milk, eggs, fresh vegetables, bread), medical services, educational services, printed books, bangles, handloom goods. |
| 5% | Household necessities such as sugar, tea, coffee, edible oils, spices. Economy class air travel. Small restaurants without AC. |
| 12% | Processed food, butter, ghee, computers, mobile phones, business class air travel, non-AC hotels. |
| 18% | Most goods and services fall in this slab — electronics, capital goods, industrial goods, AC restaurants, telecom services, financial services, IT services. |
| 28% | Luxury and sin goods — automobiles, motorcycles, aircraft, yachts, tobacco products, aerated drinks, gambling, and horse racing. |
In addition to the basic GST slab, India also levies a Compensation Cess on top of the 28% rate for certain luxury and harmful goods such as tobacco, pan masala, and large automobiles. The combined effective rate on some products can exceed 40%.
GST vs VAT – What Is the Difference?
GST and VAT are fundamentally the same type of tax — a multi-stage consumption tax collected at each point of the supply chain. The difference is mainly in the name and in some administrative details that vary by country.
| Feature | GST | VAT |
|---|---|---|
| Full name | Goods and Services Tax | Value Added Tax |
| Countries using this name | Australia, New Zealand, India, Canada, Singapore, Pakistan | UK, Europe, Middle East, Africa, most of Asia |
| How it works | Tax collected at each stage, credits available for input tax paid | Tax collected at each stage, credits available for input tax paid |
| Who pays ultimately | The final consumer | The final consumer |
| Calculation method | Identical | Identical |
In short, if you know how to calculate GST you already know how to calculate VAT. This calculator works for both — simply select your country and the correct tax name and rate will be applied automatically.
GST Calculator for Australia
Australia's GST rate is 10% and has been in place since July 2000. It is administered by the Australian Taxation Office (ATO). Most goods and services in Australia are subject to GST, with the following notable exceptions that are GST-free:
- Basic food — fresh fruit, vegetables, meat, fish, bread, milk
- Medical, health, and disability services
- Educational courses and childcare
- Exports of goods and services
- Some financial supplies and residential rent
To calculate Australian GST, multiply the original price by 0.10 to get the GST amount, then add it to get the total. To remove GST from an inclusive price, divide by 1.10 and subtract from the total.
Quick example: A plumber quotes $800 + GST. GST = $80. Total invoice = $880.
GST Calculator for New Zealand
New Zealand's GST rate is 15% and is administered by Inland Revenue (IR). New Zealand has one of the broadest GST bases in the world — almost all goods and services are taxable with very few exemptions. Businesses with turnover over NZD 60,000 per year must register for GST.
To remove GST from a New Zealand price, divide the inclusive amount by 1.15. The GST portion is 3/23 of the GST-inclusive price — a handy mental shortcut for quick estimates.
GST Calculator for Canada
Canada's federal GST rate is 5%, administered by the Canada Revenue Agency (CRA). However, most Canadians pay more than 5% in total sales tax because provinces also charge their own taxes:
- HST (Harmonized Sales Tax) — combines federal GST and provincial tax into a single rate. Ontario: 13%, New Brunswick, Nova Scotia, Newfoundland: 15%, Prince Edward Island: 15%.
- PST (Provincial Sales Tax) — charged separately in British Columbia (7%), Saskatchewan (6%), and Manitoba (7%).
- QST (Quebec Sales Tax) — Quebec charges 9.975% in addition to federal GST.
- Alberta, Northwest Territories, Yukon, Nunavut — no provincial sales tax. Only 5% federal GST applies.
Use this calculator for the federal GST portion and add the applicable provincial rate separately if needed.
VAT Calculator for the United Kingdom
The UK VAT standard rate is 20%, administered by HM Revenue & Customs (HMRC). The UK VAT system has three rates:
- Standard rate: 20% — most goods and services
- Reduced rate: 5% — domestic energy, children's car seats, sanitary products
- Zero rate: 0% — most food, children's clothing, books, newspapers, public transport
Businesses must register for VAT when their taxable turnover exceeds £90,000 in a 12-month period (2024 threshold). VAT-registered businesses charge VAT on their sales and can reclaim VAT paid on business purchases.
VAT Calculator for UAE
The United Arab Emirates introduced VAT on 1 January 2018 at a rate of 5%. It is one of the lowest VAT rates in the world. The tax is administered by the Federal Tax Authority (FTA). The following categories are zero-rated or exempt:
- Exports of goods and services outside the GCC
- International transport
- Investment-grade precious metals
- Newly constructed residential properties (first supply)
- Certain educational and healthcare services
Businesses with taxable supplies exceeding AED 375,000 per year must register for VAT. Voluntary registration is available for businesses with supplies above AED 187,500.
Who Needs a GST Calculator?
A GST calculator is useful for a wide range of people and situations:
- Business owners and shopkeepers — to calculate the correct selling price including GST and to prepare accurate invoices
- Freelancers and contractors — to add GST to service invoices and calculate the correct amount to remit
- Accountants and bookkeepers — to quickly extract the GST component from receipts and reconcile accounts
- Consumers and shoppers — to verify whether the GST charged on a receipt is correct
- Importers and exporters — to calculate customs and tax liabilities on cross-border transactions
- Real estate agents — to calculate GST on commercial property transactions
- E-commerce sellers — to correctly apply GST or VAT to sales in multiple countries
- Students and educators — to learn and teach tax calculation concepts
Common GST Calculation Mistakes to Avoid
Mistake 1 – Multiplying the Inclusive Price by the GST Rate
This is the most common error. If a price of $110 includes 10% GST, the GST component is not $110 × 10% = $11. It is actually $110 ÷ 1.10 = $100, so the GST is $110 − $100 = $10. Multiplying the inclusive price by the rate always gives an inflated result.
Mistake 2 – Using the Wrong Rate
Many countries have reduced rates for specific categories of goods and services. Using the standard rate when a reduced rate applies — or vice versa — will give an incorrect result. Always verify the applicable rate for the specific product or service category.
Mistake 3 – Confusing One-Way and Two-Way Calculations
Adding GST and removing GST are not reversible using the same multiplication. If you add 10% to $100 you get $110. But if you then multiply $110 by 10% you get $11, not $10. Always use the division method to remove GST from an inclusive price.
Mistake 4 – Rounding Errors on Multiple Line Items
When an invoice has multiple line items, GST should ideally be calculated on the total rather than rounding each line item individually. Rounding each line separately can cause the total GST to differ from the expected amount by a few cents.
GST Registration Thresholds by Country
Businesses are generally only required to register for GST or VAT once their annual turnover exceeds a threshold set by the government. Below are the registration thresholds for major countries:
| Country | Registration Threshold |
|---|---|
| Australia | AUD 75,000 per year (AUD 150,000 for non-profit organisations) |
| New Zealand | NZD 60,000 per year |
| United Kingdom | GBP 90,000 per year (2024) |
| Canada | CAD 30,000 over any four consecutive quarters |
| Singapore | SGD 1,000,000 per year |
| India | INR 20 lakh per year (INR 10 lakh for special category states) |
| UAE | AED 375,000 per year (mandatory); AED 187,500 (voluntary) |
| South Africa | ZAR 1,000,000 per year |
| Germany | EUR 22,000 per year (small business rule) |
| France | EUR 91,900 for goods; EUR 36,800 for services |
Frequently Asked Questions
How do I calculate GST from an inclusive price?
To find the GST amount included in a GST-inclusive price, divide the total price by (1 + GST rate) to get the original price, then subtract the original price from the total. For example, for a 10% GST rate: Original Price = Total ÷ 1.10. GST Amount = Total − Original Price. Use the Remove GST mode in this calculator to do this automatically.
How do I add GST to a price?
Multiply the original price by the GST rate (as a decimal) to get the GST amount, then add it to the original price. For a 10% rate: GST Amount = Price × 0.10. Total = Price + GST Amount. Or simply multiply the price by 1.10 to get the GST-inclusive total in one step.
Is GST the same as VAT?
Yes, GST and VAT are the same type of tax. Both are multi-stage consumption taxes where each business in the supply chain charges tax on its sales and claims a credit for tax paid on its purchases. The final consumer bears the full tax. The name differs by country — GST is used in Australia, New Zealand, India, Canada, and Singapore, while VAT is used in Europe, the UK, and most of the Middle East and Africa.
What is the GST rate in Australia?
The GST rate in Australia is 10%. It has been 10% since GST was introduced on 1 July 2000. To calculate GST on a price, multiply by 0.10. To find the total price including GST, multiply the original price by 1.10. To remove GST from an inclusive price, divide by 1.10.
What is the VAT rate in the UK?
The standard VAT rate in the United Kingdom is 20%. A reduced rate of 5% applies to domestic energy and some other goods. Most food, children's clothing, and books are zero-rated (0% VAT). To add 20% VAT to a price, multiply by 1.20. To remove VAT from an inclusive price, divide by 1.20.
What is the GST rate in India?
India has five GST slabs: 0%, 5%, 12%, 18%, and 28%. The applicable rate depends on the category of goods or services. Most services and manufactured goods fall in the 18% slab. Essential goods are taxed at 0–5% and luxury goods at 28%. Use the India slab selector in this calculator to choose the correct rate.
What is the GST rate in Canada?
The federal GST rate in Canada is 5%. Most provinces also charge additional provincial sales tax. The combined Harmonized Sales Tax (HST) in Ontario is 13%, and in Nova Scotia, New Brunswick, Prince Edward Island, and Newfoundland it is 15%. Alberta has no provincial sales tax, so only 5% federal GST applies.
What is the VAT rate in UAE?
The VAT rate in the United Arab Emirates is 5%. VAT was introduced in the UAE on 1 January 2018. It is one of the lowest VAT rates in the world. Healthcare, education, and most food items are zero-rated or exempt.
Can I use this calculator for business invoices?
Yes. This calculator is suitable for calculating GST or VAT on business invoices, expense claims, purchase orders, and retail pricing. Select your country, enter the amount, and the calculator shows the tax amount and total. Always verify that the correct rate applies to your specific goods or services category, as reduced rates may apply.
Does GST apply to exports?
In most countries, exports of goods and services are zero-rated for GST or VAT purposes. This means the seller charges 0% GST on the export sale but can still claim back GST paid on inputs used to produce the exported goods or services. This prevents GST from being embedded in the price of exports and making them less competitive internationally.
Disclaimer
This GST and VAT calculator is provided for general information and convenience purposes only. Tax rates, thresholds, and rules change frequently and vary by jurisdiction, product category, and transaction type. The rates shown in this tool are the standard rates at the time of publication and may not reflect the most recent legislative changes. Always verify the applicable rate with your country's tax authority or a qualified tax professional before making business, accounting, or legal decisions based on these calculations.