GST Calculator
Calculate GST-exclusive or GST-inclusive amounts instantly and accurately—perfect for invoices, quotes, and tax reporting.
How to Use GST Calculator
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Choose the GST type: either GST Exclusive or GST Inclusive.
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Enter the amount (net or gross, based on your selection).
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Input the GST rate as a percentage (e.g., 6, 10, 18).
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Click “Calculate” to view net amount, GST value, and gross total.
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Use “Sample” for test values or click “Reset” to clear inputs.
GST Calculator Key Features
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Calculates net amount, GST amount, and gross total
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Supports both inclusive and exclusive GST modes
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Works with any GST rate or custom tax percentage
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Accurate results for invoices, receipts, and compliance
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Ideal for businesses, freelancers, and accountants
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Instantly runs in your browser with no registration required
Why GST Calculator Is Best for Tax-Inclusive Pricing
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Handles both pricing models with complete flexibility
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Accurate breakdown of tax and net values for documentation
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Saves time for invoicing, quotes, or customer price transparency
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Trusted by small businesses and financial professionals
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Works for global GST/VAT models (AU, NZ, SG, IN, etc.)
Use Cases of GST Calculator
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Calculate the GST-inclusive price when charging customers
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Back-calculate GST from total (inclusive) amount
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Separate GST amount for tax filing or invoices
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Estimate gross pricing during checkout setup
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Validate GST calculations on supplier receipts or bills
Related Tools
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Sales Tax Calculator – Use when applying multiple regional or federal taxes beyond GST.
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PayPal Fee Calculator – Combine GST with platform fees to calculate total deductions.
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Loan Calculator – Estimate loan-related tax components or GST on financed goods.
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Percentage Calculator – Manually check or break down GST into sub-components.
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Margin Calculator – Understand how GST affects final margins in retail or wholesale pricing.
FAQs
What is GST?
GST (Goods and Services Tax) is a consumption tax charged on goods and services, commonly used in countries like Australia, India, and Canada.
What’s the difference between inclusive and exclusive GST?
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Exclusive GST: You add tax on top of the base price.
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Inclusive GST: The tax is already included in the price.
Can I change the GST rate?
Yes. You can enter any custom rate depending on your country or tax scheme.
Will this tool show all amounts?
Yes. It clearly displays the Net Amount, GST Amount, and Gross Total.
Does it work for reverse GST calculation?
Yes. You can enter a gross amount and select GST Inclusive to reverse-calculate net and tax amounts.
Is this suitable for small businesses?
Absolutely. It’s designed for invoicing, sales, and tax prep for small to medium businesses.
Is this calculator country-specific?
No. You can use it globally by entering your region's applicable GST/VAT rate.
Can I use this on mobile?
Yes. The tool is fully responsive and performs perfectly on phones and tablets.
Does it support decimal values?
Yes. You can use decimals for prices, percentages, and taxes.
Is this tool free?
Yes. 100% free, browser-based, and requires no sign-up or installation.
🔒 Security & Privacy Notes
All calculations are performed locally in your browser.
We do not collect or transmit your pricing or tax data.
No inputs are stored, and everything resets on refresh—ensuring full user privacy and control.
For more information, view our full Privacy Policy
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