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Fill out the details of your complaint below. If you are reporting potential tax evasion or fraud anonymously, use this form instead.

Report tax evasion or fraud anonymously - IR873

Complaints on someone else's behalf

If you're making a complaint on behalf of someone else, and you are a nominated person or agent for the person, we will contact you first. Otherwise, we may need to contact the person making the complaint if you are not authorised to discuss their tax affairs. For more information on making your complaint and our complaints process, have a look at the Complaints Guide - IR1169.

Complaints guide - IR1169

Make sure your complaint has properly submitted

Please make sure you have a stable internet connection before submitting your complaint.

Once you submit your complaint:

  • wait for confirmation that it has submitted – this will show up on your screen
  • we will contact you with your complaint case number within one business day of your complaint being received.

If you have an IRD number then please enter it in the format 123-456-789. This helps us find your information quickly and helps with our validation process
Only file types allowed: doc, docx, pdf, rtf, txt, csv, xls, xlsx, jpeg, jpg, png, tiff. can be attached up to maximum of 10MB.
Only file types allowed: doc, docx, pdf, rtf, txt, csv, xls, xlsx, jpeg, jpg, png, tiff. can be attached up to maximum of 10MB.
Only file types allowed: doc, docx, pdf, rtf, txt, csv, xls, xlsx, jpeg, jpg, png, tiff. can be attached up to maximum of 10MB.
Only file types allowed: doc, docx, pdf, rtf, txt, csv, xls, xlsx, jpeg, jpg, png, tiff. can be attached up to maximum of 10MB.
Only file types allowed: doc, docx, pdf, rtf, txt, csv, xls, xlsx, jpeg, jpg, png, tiff. can be attached up to maximum of 10MB.
Only file types allowed: doc, docx, pdf, rtf, txt, csv, xls, xlsx, jpeg, jpg, png, tiff. can be attached up to maximum of 10MB.
Only file types allowed: doc, docx, pdf, rtf, txt, csv, xls, xlsx, jpeg, jpg, png, tiff. can be attached up to maximum of 10MB.
Only file types allowed: doc, docx, pdf, rtf, txt, csv, xls, xlsx, jpeg, jpg, png, tiff. can be attached up to maximum of 10MB.
Only file types allowed: doc, docx, pdf, rtf, txt, csv, xls, xlsx, jpeg, jpg, png, tiff. can be attached up to maximum of 10MB.
Only file types allowed: doc, docx, pdf, rtf, txt, csv, xls, xlsx, jpeg, jpg, png, tiff. can be attached up to maximum of 10MB.

Only file types allowed: doc, docx, pdf, rtf, txt, csv, xls, xlsx, jpeg, jpg, png, tiff. can be attached up to maximum of 10MB.


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Last updated: 01 Sep 2026
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