Whether you’re a sole trader, a small business, or managing rental income, this calculator gives you fast clarity so you can make confident decisions.

How It Helps You

• See your potential GST liability before you file
• Check if you’re on track before IRD reviews your returns
• Estimate refunds or amounts owing in just minutes
• Test different scenarios (e.g., revenue changes, expenses)

This isn’t a replacement for official filing, but it’s a practical first step that gives you a snapshot of where you stand — without guessing.

Ready to Take the Next Step?

If your results leave you unsure, or you want someone to double-check your numbers before you submit your return, we’re here to help.

Contact Global Tax Accountants for clear GST advice, personalised support, and help with filing — so you stay compliant and stress-free.

Get in touch today and let’s talk about your GST position.