GST Tools Directory

All our GST and tax calculators in one place—for tax professionals, accountants, and business owners.

GST Tools Directory FAQ

Q1.What is this tools directory?

This page lists all our GST and tax calculators in one place: simple and professional calculators, inclusive and exclusive modes, reverse calculator, ITC calculator, interest and late fee tools. Use it to find the right tool for your task.

Q2.Which calculator should I use for a quick total?

For a single quick calculation (add or subtract GST), use the Simple GST Calculator on the home page. For audit trail and history, use the Professional GST Calculator.

Q3.I have a total price including tax and need the breakdown. Which tool?

Use the Inclusive GST Calculator or the Reverse GST Calculator. Both extract the base price and tax from a total; the inclusive page is focused on that one job.

Q4.Where do I calculate late fees or interest?

Use the GST Late Fee Calculator for GSTR-3B, GSTR-1, and GSTR-9 penalties and capping. Use the GST Interest Calculator for Section 50 interest on delayed tax payment.

Q5.Are these tools free and private?

Yes. All tools run in your browser. No sign-up or server storage of your figures; calculations and history stay on your device.

Disclaimer: This tool is provided for informational purposes only. While we strive for 100% mathematical accuracy based on standard IRD and ATO formulas, it does not constitute legal or professional financial advice. Always consult with a qualified tax accountant for official filings.