GST & VAT Calculator

Add or remove GST/VAT from any amount, or compare both side by side.

Currency
Base Amount (excl. GST)
₹
₹0₹100K
GST Rate
%

Fill in the details and click Calculate.

Frequently Asked Questions

Both GST (Goods and Services Tax) and VAT (Value Added Tax) are consumption taxes collected at each stage of the supply chain. The key difference is terminology and implementation: India, Australia, New Zealand, Canada, and Singapore use "GST", while the UK, EU, and many other countries use "VAT". Functionally, both add a percentage tax to the price of goods and services. In India, GST replaced the old VAT system and unified it into one national tax.
Tax Amount = Base Price × (Tax Rate / 100)
Total Price = Base Price + Tax Amount

Example: Base price £500, VAT 20% → Tax = £100 → Total = £600.
Base Price = Inclusive Price / (1 + Rate / 100)
Tax Amount = Inclusive Price − Base Price

Example: VAT-inclusive price £600 at 20% → Base = £600 / 1.20 = £500 → VAT = £100.
Standard VAT rates vary by country: UK 20%, France 20%, Germany 19%, Italy 22%, Spain 21%, Netherlands 21%, Sweden 25%, Denmark 25%, Norway 25%, Ireland 23%, Poland 23%, Portugal 23%, Belgium 21%, Austria 20%, Switzerland 7.7%. Most EU countries also have reduced rates for food, medicine, and essential goods.
India has four main GST slabs: 5% (essential goods: tea, sugar, medicines), 12% (processed food, computers, mobile phones), 18% (most services, electronics, restaurants), 28% (luxury items, automobiles, tobacco). Some items like fresh vegetables, milk, and books are at 0% (exempt). For intra-state transactions, GST is split equally into CGST + SGST.
Tax-exclusive pricing shows the base price without tax — you add tax on top. Tax-inclusive pricing means the tax is already embedded in the shown price. For example, a product listed at $100 ex-VAT (20%) costs $120 inclusive. A product listed at $120 incl-VAT contains $20 of VAT and $100 base. Use the "Remove GST/VAT" mode in this calculator to extract the base price and tax amount from any tax-inclusive price.
Cascading tax occurs when tax is applied at each stage of the supply chain on the full price including previously paid taxes — causing tax on tax. India's pre-GST system (Central Excise + State VAT) had this problem. GST eliminated cascading by allowing businesses to claim an Input Tax Credit (ITC) — they pay tax only on the value they add, not on taxes paid at earlier stages.
Use the formula: Base Price = Tax-Inclusive Amount ÷ (1 + Tax Rate / 100). For example, a GST-inclusive invoice of ₹11,800 at 18% GST: Base = ₹11,800 ÷ 1.18 = ₹10,000, GST = ₹1,800. Use the "Remove GST/VAT" tab in this calculator and enter the inclusive amount to get the exact breakdown instantly. This is essential for expense claims, accounting entries, and verifying supplier invoices.
For invoicing, use the "Add GST/VAT" mode: enter the base price of each line item and apply the applicable tax rate. The calculator shows the exact tax amount and total payable. For GST invoices in India, you also need to split the tax into CGST + SGST (for intra-state) or show it as IGST (for inter-state). Enable the "Show CGST + SGST breakdown" option to get the split figures directly.
While both are value-added taxes in principle, they differ in structure. India's GST is a unified national tax with three components (CGST, SGST, IGST) applied uniformly across all states, eliminating inter-state tax barriers. VAT in European countries is similarly structured but rates vary by country and goods categories. The key practical distinction is that India's GST has a multi-slab rate structure (5%, 12%, 18%, 28%) while many European VAT systems have a single standard rate plus reduced rates for specific categories.

About This GST & VAT Calculator

This combined GST & VAT Calculator lets you add tax to a base price, remove tax from an inclusive price, compare all rates at once, and compare GST vs VAT side by side. It supports India GST slabs, UK/EU VAT rates, and custom rates for any country.

Common Use Cases

  • Invoice pricing — add correct tax before billing
  • Expense reports — extract net amount from receipts
  • International business — compare tax burden by country
  • E-commerce — display tax-inclusive prices
  • Accounting — reconcile GST/VAT payable

Standards & References

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