What is GST?
Goods and Services Tax (GST) is a value-added tax levied on goods and services at every stage of the supply chain, from production to the point of sale. Where applicable, governments impose it on goods and services on every level of the distribution chain. GST is essentially the same thing as VAT (value-added tax) — both are consumption taxes collected incrementally at each stage of production and distribution.
How to Calculate GST
To calculate GST, follow these steps:
- Determine the net price — the price before GST is added (e.g., $100.00)
- Find the GST rate — expressed as a percentage (e.g., 10% in Australia). Divide it by 100 to get 0.10.
- Calculate the tax amount — multiply the net price by the GST rate: $100 × 0.10 = $10.00
- Determine the gross price — add the tax amount to the net price: $100 + $10 = $110.00
GST Formulas
- Tax Amount = Net Price × (GST Rate / 100)
- Gross Price = Net Price + Tax Amount
- Net Price = Gross Price / (1 + GST Rate / 100)
- GST Rate = (Tax Amount / Net Price) × 100
How to Use the GST Calculator
Our GST calculator is straightforward and flexible. Choose your calculation mode and fill in the values you know:
- Net Price → Gross Price: Enter the net price and GST rate to calculate the gross price and tax amount.
- Gross Price → Net Price: Enter the gross price and GST rate to find the net price and tax amount.
- Find GST Rate: Enter the gross price and tax amount to determine the GST rate.
Select your currency from the list of 38 world currencies, including USD, EUR, GBP, AUD, JPY, and many more. The calculator supports both imperial and metric contexts where applicable.
Australian GST Calculator
Australia applies a GST rate of 10% on most goods and services. The core rules in Australia follow the same principles as VAT systems worldwide. Key facts about Australian GST:
- Businesses with an annual turnover below $75,000 AUD do not need to register for GST.
- Certain essential goods (such as basic food, healthcare, and education) are exempt from GST.
- GST-registered businesses can claim credits for GST paid on business purchases (input tax credits).
- GST is administered by the Australian Taxation Office (ATO).
Our calculator defaults to AUD currency and is ideal for quickly calculating Australian GST on any transaction. Simply enter the net price, set the rate to 10%, and get the GST amount and gross price instantly.
GST Rates Around the World
GST/VAT rates vary significantly by country. Here are some common rates:
- Australia: 10%
- New Zealand: 15%
- Canada: 5% (federal GST) + provincial taxes
- India: 5%, 12%, 18%, or 28% depending on goods/services
- Singapore: 9%
- United Kingdom (VAT): 20%
- European Union (VAT): varies from 17% to 27%
Why Use Our GST Calculator?
Our online GST calculator helps you instantly find either the net or gross price of your product based on a percentage-based GST rate. Here's why it stands out:
- Three calculation modes: Calculate in any direction — net to gross, gross to net, or find the rate.
- 38 world currencies: From Australian Dollar (AUD) to Vietnamese Dong (VND), covering Oceania, Americas, Europe, Asia, and the Middle East.
- Shareable results: Save and share your calculation with a unique link.
- Calculation history: Review your previous calculations without re-entering data.
- Mobile-friendly: Works seamlessly on all devices.
FAQs
Is GST the same as VAT?
Yes, GST (Goods and Services Tax) and VAT (Value-Added Tax) are essentially the same concept — a consumption tax applied at each stage of the supply chain. Different countries use different names for the same type of tax.
How is GST different from Sales Tax?
While both are consumption taxes, GST/VAT is collected at multiple stages of production and distribution (with businesses reclaiming tax on purchases), whereas sales tax is typically collected only at the final point of sale to the consumer.
Can I use this as an Australian GST calculator?
Yes! Simply select AUD as your currency and enter 10% as the GST rate. Our calculator will instantly compute the GST amount and the gross (GST-inclusive) price for any transaction.
What is a GST-exclusive vs GST-inclusive price?
A GST-exclusive price (net price) does not include GST — it's the base price before tax. A GST-inclusive price (gross price) includes GST — it's the total amount the consumer pays.