Contact
Have a question, spotted an error, or want to suggest an improvement? We'd love to hear from you.
What to contact us about
Calculator errors
If a calculator is producing results that differ from what you expect based on official IRD figures, please include the input values and the expected output so we can investigate.
Data corrections
If you believe tax rates, thresholds, or other data on the site are out of date or incorrect, please let us know which page and what the correct information should be.
General enquiries
Feature requests, questions about how a calculator works, or anything else — feel free to reach out.
Note: We are not able to provide financial advice. For personal tax or financial questions, please contact IRD directly or consult a qualified financial adviser or accountant.
You may also find answers on the methodology page, which explains how calculators are built and what data sources are used.