Australian Taxation Office in Darwin
The Australian Taxation office in Darwin is located in Mitchell St, Darwin. It's just before the bend on the left of Mitchell Street where Parliment House is situated at the end of Mitchell Street.
We don't have any local telephone numbers please contact do not contact Tropical Darwin
Australian Taxation Office Homepage - http://www.ato.gov.au/

The Commonwealth Government's main revenue collector, and the statutory authority responsible for the administration of Australia's taxation system.

The office counter business hours are 8:30 am - 4:00 pm. From memory Wednesday they close a bit earlier. From personal experience the staff are very caring and informative.

Use this building on the right as a landmark and the Taxation office is before it on the same side around 200m beforehand.