GST VAT Calculator

To extract GST from a GST-inclusive price: Tax = Price × rate / (100 + rate). Excl. price = Price / (1 + rate/100). Example: price $110 including 10% GST: Tax = 110 × 10 / 110 = $10. Excl. = 110 / 1.1 = $100. This is the reverse calculation (remove GST).

Australia: 10%. Canada: 5% GST + provincial tax (0-10%). New Zealand: 15%. Singapore: 9% (2024). India: multiple rates (0%, 5%, 12%, 18%, 28%). UK VAT: standard 20%, reduced 5%, zero-rated 0%. EU VAT: varies by country (Germany 19%, France 20%, Luxembourg 17%).

GST (Goods and Services Tax) and VAT (Value Added Tax) are essentially the same concept: a consumption tax levied at each stage of production/sale, but the consumer ultimately pays. The naming varies by country. Australia, Canada, New Zealand use GST. UK, EU countries use VAT. India uses GST on a unified basis.

Common exemptions (vary by country): Basic food items (groceries, but not restaurant meals). Healthcare and medical services. Education. Financial services. Real property (residential). Religious services. In Australia, these are called GST-free supplies. In the UK, some items are zero-rated (taxable at 0%) vs exempt (outside the VAT system).

Businesses registered for GST/VAT charge tax on sales (output tax), can claim credit for tax paid on business purchases (input tax), and pay the net difference to the government. This is called input tax credits in Australia and input VAT in EU. Small businesses under the registration threshold (e.g., AUD $75,000 in Australia) may not need to register.