GST Calculator (Bulk)
Add or remove GST for one amount or a whole list.
How to use GST Calculator (Bulk)
Calculate GST-inclusive and GST-exclusive amounts. Enter 'amount' or 'amount,rate' per line to override the default rate. Rates change over time: confirm the current rate for your product on the official GST portal.
- Enter one amount per line (optionally amount,rate).
- Choose add or remove GST and the default rate.
- Calculate and download the CSV.
FAQ
Is my data sent to a server?
No. Every calculation runs in your browser. Nothing you type or import is uploaded.
Can I calculate in bulk?
Yes. Paste one amount per line, or import a CSV/TXT file, and get a results table you can download as CSV.
Which GST rate should I use?
Use the rate that applies to your goods or service at the time of the invoice. This calculator does not decide the rate for you.