How to contact us by mail

Relevant forms are available for most tax related matters. Please use these where available as they will ensure all the required information is provided to action your request.

Use the search to find if relevant forms are available.

If your query is not covered by a form you can write to us at:

GPO Box 9990, in the capital city of your state/territory

If you intend to mail a handwritten letter please ensure you clearly identify yourself, provide relevant contact details and your signature.

To avoid delays in processing, the handwritten letter should also include at least one of the following pieces of preferred information:

• taxpayer TFN
• taxpayer date of birth (for an individual)
• taxpayer address (one only of residential, business, postal or email) or telephone number
• taxpayer bank account details
• details from an ATO generated letter or notice issued within the last five years including:
• notice of assessment sequence number
• e-tax reference number
• activity statement document identification number (DIN)
• correspondence reference number
• date and name or title of an ATO generated letter or notice that may or may not have a unique identification number but can be confirmed on our systems.