New Zealand's dedicated GST resource

Contact Us

Found a bug in one of our calculators? Have a suggestion for a new GST tool? Want to discuss advertising or sponsorship on GST.co.nz?

The best way to reach us is through LinkedIn.

GST.co.nz is part of the Calculate.co.nz group. For questions about other calculators (PAYE, mortgage, KiwiSaver, etc.), please visit Calculate.co.nz/contact.


If you've found a bug, or would like to contact us, or learn more about GST.co.nz.

GST.co.nz is part of the Calculate.co.nz group, New Zealand's largest collection of free financial calculators and tools. For PAYE, mortgage, KiwiSaver, and 200+ other calculators, visit Calculate.co.nz.

All calculators and tools are provided for educational and indicative purposes only and do not constitute financial advice. GST calculations should be verified against the Goods and Services Tax Act 1985 and current IRD guidance.

GST.co.nz is proudly part of the Realtor.co.nz group, New Zealand's leading property transaction literacy platform.

All content on this website, including calculators, tools, source code, and design, is protected under the Copyright Act 1994 (New Zealand). No part of this site may be reproduced, copied, distributed, stored, or used in any form without prior written permission from the owner.

© 2019 to 2026 GST.co.nz. All rights reserved.