GST Guides Directory

Browse the guide currently available on this site, then open a calculator when you need a quick result.

How to Calculate GST in Excel

Copy GST formulas for Excel and other spreadsheets.

Use cell references to add GST, remove GST from an inclusive total, extract the tax amount and fill formulas down a worksheet.

Need a GST calculation?

Use a calculator for a quick total when you do not need a spreadsheet formula.

View GST Calculators

GST Guides FAQ

Q1.What GST guide is available?

The current directory contains one detailed guide: How to Calculate GST in Excel. It covers copy-ready cell formulas, worked spreadsheet examples and common formula errors.

Q2.Does the Excel GST guide also work for Google Sheets?

Yes. The same cell formulas work in Excel, Google Sheets, Apple Numbers and LibreOffice Calc.

Q3.Where can I calculate GST without a spreadsheet?

Use the GST Calculator on the home page for a quick add-or-remove result, or open the Tools directory for a task-specific calculator.

Disclaimer: This tool provides arithmetic for one GST rate at a time, not tax, legal or filing advice. Check the original transaction's rate, rounding, exemptions, invoice requirements and filing rules before using a result for an invoice or return.