GST / VAT Calculator (Worldwide)

A GST calculator works out how much goods and services tax or value added tax to add to a price, or how much is already inside a price that includes it. Our free calculator covers more than 40 countries, including every Canadian province and territory, Australia, New Zealand, India, Singapore, the UAE, Saudi Arabia, South Africa, the UK, Switzerland, Norway, Japan, Malaysia, Pakistan and all 27 EU member states. Pick a country and rate, add or remove the tax, see the breakdown for combined taxes such as GST plus PST or CGST plus SGST, and use bulk mode for a whole column of invoice lines. Every rate was checked in October 2026 against the country's own tax authority.

How to use the GST calculator

1. 1 Choose add or removePick Add tax if you have a price before tax and want the total. Pick Remove tax if your price already includes tax and you want to know the net amount and the tax inside it.
2. 2 Select the countryChoose the country where the tax is due. Countries are grouped by region, with all 27 EU member states listed together.
3. 3 Pick the rate or provinceChoose the standard rate or a reduced rate. For Canada, pick the province or territory; for India, pick the slab and whether the sale is within one state or between states. Use Custom rate for anything not listed.
4. 4 Enter the amountType a single amount, or switch on bulk mode and paste one amount per line from a spreadsheet. Currency symbols and thousands separators are ignored.
5. 5 Copy or download the resultCheck the net, tax and gross figures and the breakdown by tax part, then copy the results or download a CSV of every line with totals.

How to add or remove GST and VAT

Adding tax is the easy direction. Multiply the net price by one plus the rate. At 10% GST in Australia, a net price of 200 becomes 200 × 1.10 = 220, so the GST is 20. At 15% in New Zealand or South Africa, multiply by 1.15. At 9% in Singapore, multiply by 1.09.

Removing tax is where most mistakes happen. You cannot simply take the rate off the gross price, because the tax was calculated on the smaller net price, not on the total. To find the net price, divide the gross price by one plus the rate. A price of 115 including 15% VAT is 115 ÷ 1.15 = 100 net, so the VAT is 15. Taking 15% off 115 would give 97.75, which removes too much.

A handy shortcut is the tax fraction. For a 10% tax the tax inside a gross price is one eleventh of it, which is why Australian invoices often show GST as 1/11 of the total. For 15% it is 3/23, for 20% it is one sixth and for 5% it is one twenty-first. The calculator does this for you at any rate, including unusual ones such as Quebec's combined 14.975%.

Canada: GST, HST, PST and QST by province

Canada has a federal goods and services tax of 5%. Five provinces combine it with their provincial sales tax into a single harmonised sales tax (HST): Ontario at 13%, Nova Scotia at 14% since 1 April 2025, and New Brunswick, Newfoundland and Labrador and Prince Edward Island at 15%. Alberta and the three territories charge only the 5% GST.

British Columbia, Saskatchewan, Manitoba and Quebec charge their own provincial tax separately alongside the GST. British Columbia's PST is 7%, Saskatchewan's PST is 6%, Manitoba's retail sales tax is 7% and Quebec's QST is 9.975%. All four are calculated on the price before GST, not on top of it, so the rates simply add together. The calculator shows each part separately so you can put the right figures on an invoice.

Which rate applies depends on where the supply is made, which is usually where the customer receives the goods or services, not where your business is based. Provincial sales taxes also have their own lists of exempt items and their own registration rules, so check the provincial guidance if you sell into a province that runs a separate PST.

India's GST slabs after the 2025 reform

India simplified its GST rates with effect from 22 September 2025, following the 56th meeting of the GST Council. The old 12% and 28% slabs were removed, leaving two main rates: a merit rate of 5% and a standard rate of 18%. A special rate of 40% applies to a short list of sin and luxury goods such as pan masala, aerated drinks, larger cars and motorcycles above 350cc. Many everyday foods are nil-rated, and a few goods such as gold keep special rates.

How the tax is split depends on where the sale happens. For a sale within one state, the rate is divided equally between central GST (CGST) and state GST (SGST), or union territory GST (UTGST) in a union territory, so 18% becomes 9% plus 9%. For a sale between states, the full rate is charged as integrated GST (IGST). The calculator offers both versions of each slab, and the breakdown shows exactly what to print on a tax invoice.

VAT rates across Europe

Every EU member state must have a standard VAT rate of at least 15%, and most also have one or two reduced rates for items such as food, books, medicines and accommodation. Standard rates range from 17% in Luxembourg to 27% in Hungary. Finland's standard rate is 25.5%, and Estonia and Romania both raised their standard rates in 2025, so an old rate table can easily be out of date.

The calculator includes the standard, reduced, super-reduced and parking rates for all 27 member states, taken from the European Commission's Your Europe table. It also covers three non-EU European countries: the UK at 20%, 5% and 0%, Switzerland at 8.1%, 3.8% for accommodation and 2.6% for most food and books, and Norway at 25%, 15% for food and 12% for transport, cinema tickets and hotel rooms.

• Standard rate: applies to most goods and services unless the law lists them for a lower rate.
• Reduced rates: apply only to the categories each country names, which vary a great deal between countries.
• Super-reduced rate: below 5%, used by a few countries, for example 2.1% in France and 4% in Spain and Italy.
• Parking rate: a transitional rate of at least 12% kept by a few countries for specific items.

Middle East, Asia-Pacific and Africa

The UAE charges VAT at 5% and Saudi Arabia at 15%, a rate it raised from 5% in July 2020. South Africa's VAT remains 15% after planned increases to 15.5% and 16% were withdrawn. Australia's GST has been 10% since it began in 2000, New Zealand's is 15% and Singapore's rose to 9% at the start of 2024.

Japan's consumption tax is 10%, made up of a 7.8% national part and a 2.2% local part. A reduced rate of 8% applies to food and non-alcoholic drinks bought to take away and to subscribed newspapers, but not to eating in a restaurant. Pakistan's federal sales tax on goods is 18%, while services are taxed by each province under its own law and at its own rates.

Malaysia is the odd one out. It replaced GST with the sales and service tax (SST) in 2018. Sales tax is charged once, at 5% or 10%, when taxable goods are made in or imported into Malaysia. Service tax is charged by registered businesses on listed services, generally at 8%, with 6% for food and drink, parking, logistics, telecoms and some newer categories. Because SST is not a multi-stage tax with input credits, you normally apply one or the other, never both, to the same sale.

Rounding, invoices and checking your rate

Tax authorities generally allow rounding to the nearest smallest currency unit, either on each line or on the invoice total, but the rules differ between countries. In bulk mode the calculator rounds the tax on each line and adds up the rounded figures, which matches how most accounting software prints invoices. If you total first and then calculate the tax, the result can differ by a cent or two. Currencies without minor units, such as the Japanese yen, are rounded to whole units.

The rate is the part to double-check. The country, the type of product and sometimes the customer all affect which rate applies, and many items are zero-rated or exempt. Rates also change: Nova Scotia, Finland, Estonia, Romania and India have all changed rates since 2024. The rates in this tool were checked in October 2026, and each country note links back to its own tax authority in our source list. If you sell across borders, check whether you need to register in the customer's country and whether reverse charge rules mean the customer accounts for the tax instead of you.

Examples you can copy

Add 10% GST (Australia)     200 x 1.10      = 220.00   (GST 20.00)
Remove 15% VAT (S. Africa)  115 / 1.15      = 100.00   (VAT 15.00)
Remove 18% GST (India)      1,180 / 1.18    = 1,000.00 (CGST 90 + SGST 90)
Add Quebec GST + QST        100 x 1.14975   = 114.98   (GST 5.00 + QST 9.98)

5%   ->  1/21 of the gross price
10%  ->  1/11
15%  ->  3/23
20%  ->  1/6
25%  ->  1/5

Common mistakes to avoid

Frequently asked questions