Use this online form to tell us about New Zealand individuals or businesses that are committing a tax crime.
Gather your information
You should provide as much detail as possible. This will help us find the right individual or business you’re telling us about.
Fill in the online form
You can choose not to identify yourself or to use a false name. If you do give us your details, we can contact you if any information is missing.
What happens next
We'll review your information and decide the next best step.
Because of tax secrecy laws we cannot tell you what we do with your information, but we appreciate you giving it to us.
We'll do everything we can to hide your identity, but you'll need to be careful to leave out information that may accidentally identify you in your report.
You can call us on our dedicated anonymous phone line 0800 225 610 or a general phone line.
Alternatively, send us a letter with your information. Remember to provide as much detail as you can.
PO Box 39010
Wellington Mail Centre
Lower Hutt 5045