GST & Tax Calculator (Add or Remove GST/VAT)
Add or remove GST, VAT or sales tax at any rate, split CGST and SGST, and total several items like an invoice.
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GST & Tax Calculator works out tax in both directions: add tax to a price before tax, or find the tax inside a price that already includes it. Choose a preset rate such as India GST 5%, 18% or 40%, Pakistan sales tax 18%, UAE 5%, UK 20%, Australia 10% or Canada GST 5%, or type any rate.
For India, the tax can be split into CGST and SGST. The “Several items” tab totals an invoice with a different rate on each line. For full invoices, try the Invoice Generator.
More about GST & Tax Calculator (Add or Remove GST/VAT)How to use, good to know & FAQ
How to use GST Calculator
- Choose “Add tax” or “Remove tax”.
- Enter the amount and pick a rate (or type your own).
- Read the amount before tax, the tax and the total. The formula is shown below.
- For several items, switch tabs and enter quantity, price and rate on each line.
Good to know
- Adding tax: tax = amount × rate ÷ 100. Removing tax: amount before tax = total ÷ (1 + rate ÷ 100).
- Results are rounded to 2 decimal places.
- Preset rates are standard national rates and change from time to time. Reduced, zero and exempt rates apply to some goods and services. This is not tax advice.
Frequently asked questions
How do I remove 18% GST from a price?
Divide by 1.18. For example, 1,180 ÷ 1.18 = 1,000 before tax, so the GST is 180.
What are CGST and SGST?
In India, GST on sales within one state is split equally between the central (CGST) and state (SGST) government. Sales between states pay IGST at the full rate.
Does it work for VAT?
Yes. GST, VAT and sales tax use the same maths. Pick or type the rate.
When to use GST Calculator
Use it to price products, check invoices and receipts, or work out how much tax is included in a price.