Let us know as soon as possible if our service has let you down, so we can fix the problem for you and take steps to ensure it doesn't happen again. Your feedback will help us improve our processes.
Phone: 0800 274 138 (Monday to Friday between 8am and 5pm)
Fax: 04 890 4561
Complaints Management Service
Inland Revenue Department
PO Box 2198
You can also make a complaint (external link) online about our service.
To help us fully investigate your complaint, please include the following:
The service complaints information sheet, Inland Revenue Charter (IR614) is available under "Forms and guides" or you can order one by calling our 0800 self-service line on 0800 257 773.
If you disagree with how we've assessed your, or your client's, tax or child support, you may need to follow the formal disputes procedure. You can discuss this with one of our customer service representatives.
At any time you may ask the Office of the Ombudsmen (you can find their website under "Related websites") to view decisions made by us. The Ombudsmen will usually expect you to have first tried to resolve the issue with us using our complaints processes.