GST calculator
Free GST/VAT calculator for any country. Add or remove tax instantly. No Excel formulas, no signup. Works offline.
A GST calculator helps businesses and individuals quickly determine tax amounts for goods and services. This tool is essential for business owners, accountants, freelancers, and anyone who needs to calculate GST, VAT, or sales tax for invoicing, pricing, or expense tracking. The calculator handles both exclusive calculations (adding tax to a base amount) and inclusive calculations (removing tax from a total amount), making it versatile for various business scenarios. By using this tool, you can ensure accurate tax calculations without manual formulas, reduce errors in financial documents, and save time on repetitive calculations.
What is GST calculator?
GST (Goods and Services Tax) is a value-added tax levied on most goods and services sold for domestic consumption. This calculator works for GST, VAT, or any sales tax system worldwide, regardless of country-specific regulations. The tool performs two types of calculations: exclusive (adding tax to a base price) and inclusive (extracting tax from a total amount). Exclusive calculation is used when you have a base price and need to add tax, while inclusive calculation is used when you have a total amount and need to determine the tax component and base amount separately.
Common use cases
- Invoicing: Add GST to base prices when creating customer invoices to show tax breakdown clearly
- Receipt analysis: Calculate GST amount from total receipt value to separate tax from expenses
- Product pricing: Determine final selling price including tax to ensure accurate profit margins
- Expense tracking: Extract tax component from total expenses for accurate accounting records
- Financial planning: Calculate tax impact on budgets and cash flow projections
- Tax filing: Verify GST calculations before submitting tax returns or financial statements
Limitations and common mistakes
- The calculator uses a single flat tax rate. Real-world scenarios may involve multiple tax rates, exemptions, or special categories
- Additional charges like cess, surcharges, or local taxes are not included in the calculation
- The tool does not account for input tax credits or GST refunds that businesses may be eligible for
- For reverse charge mechanisms or special GST scenarios, manual adjustments may be required
- The calculator assumes standard tax calculation methods and may not cover all country-specific GST variations
How to use this gst calculator
- Select calculation type: Exclusive (add GST) or Inclusive (remove GST)
- Enter the amount in the input field
- Adjust the GST rate using the slider (0-30%) to match your applicable tax rate
- Click "Calculate GST" to see the breakdown showing base amount, tax amount, and total
- Use the results for invoicing, pricing, or expense documentation
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Frequently Asked Questions
What is GST?
GST (Goods and Services Tax) is a value-added tax levied on most goods and services. This calculator works for GST, VAT, or any sales tax worldwide. No country-specific setup needed.
What is the difference between exclusive and inclusive GST calculation?
Exclusive calculation adds GST to a base amount (e.g., $100 + 18% GST = $118). Inclusive calculation removes GST from a total (e.g., $118 with 18% GST = $100 base + $18 tax).
What GST or VAT rates should I use?
Common rates vary by country: India 5-28%, UK 20%, Australia 10%, Canada 5-13%, EU 19-27%. Essential items often have 0-10% rates, while luxury items may have 20-30% rates. Adjust the slider to match your applicable rate.
Can I use this for multiple tax rates?
The calculator handles one tax rate at a time. For items with different rates, calculate each category separately and sum the results.
Is this calculator accurate for tax filing?
The calculator provides accurate mathematical calculations. However, always verify with your accountant or tax advisor, as tax regulations may have specific rules, exemptions, or special cases.
Does the calculator work offline?
Yes, once loaded, the calculator works entirely in your browser without requiring an internet connection. All calculations happen locally on your device.