GST / VAT / Sales Tax Calculator
Easily add or remove GST (Goods and Services Tax) from any price. Perfect for generating invoices or calculating the true cost of business expenses.
Instant Invoice Mathematics
Business owners constantly need to add Tax to a net price for invoicing, or extract the Tax from a gross price to claim expenses. Doing this math manually (e.g., dividing by 1.18) is prone to errors. This calculator provides one-click 'Add GST' and 'Remove GST' functions, supporting standard tax brackets (5%, 12%, 18%, 28%) globally.
Why Use Our GST Calculator?
- Add or Extract: Calculate tax on top of a price, or reverse-calculate the base price.
- Global Support: Works for GST, VAT, and standard US Sales Tax.
- Instant Breakdown: Shows Base Price, Tax Amount, and Final Price clearly.
- Offline Secure: Calculate your corporate invoices privately.
How to Use the GST Calculator
Enter the Initial Price amount.
Select your Tax Slab percentage (e.g., 18%).
Choose whether to 'Add Tax' or 'Remove Tax'.
Copy the precise figures into your accounting software.
Frequently Asked Questions
You cannot simply subtract 18%. You must divide the Gross Price by 1.18 to find the original Base Price. Our tool automates this complex extraction.
Yes, while standard slabs are provided as presets, you can manually type in any tax percentage required by your local jurisdiction.
All file processing is performed locally in your web browser. We do not upload, store, or view your data.