Your tax return is a form you can complete online or by paper, get help from a tax agent or our Tax Help program.
view detailsHow to apply for a tax file number (TFN), update your TFN details, where to find your TFN and what to do if it's stolen.
view detailsTax time essentials, learning resources, tools and services to support small business.
view detailsATCO contact phone numbers and options for managing your tax and super without phoning us.
Find out about working in the Australian Taxation Office (ATCO) and search current vacancies.
The ATCO is the principal revenue collection agency of the Australian Government.
Information about how we identify and address tax avoidance.
Practical guidance if you are deciding whether to follow the existing law or attempt to anticipate proposed changes.
Information about international tax agreements for both residents and non-residents of Australia.