Your fund needs to be registered with the Australian Taxation Office (ATO) within 60 days of being established and you will need to elect for your fund to be regulated, so that it will be eligible for the superannuation tax concessions. You do this by applying for an Australian Business Number (ABN) at the Australian Business Register. When completing the ABN application you should also ask for a tax file number (TFN) for your fund.
You will also need to register your fund for GST if it is likely to have an annual turnover of more than $75,000 pa. Annual GST turnover does not include contributions, income from financial assets (such as interest, dividends and rent from Australian residential property) and income generated outside Australia, but does include income from the lease of equipment or commercial property. This registration is required under the GST Act and must be completed within 21 days after becoming required to register for GST.
You may also need to be registered for PAYG withholding tax, such as in the case where your fund is going to make payments (lump sum or pensions) to members aged less than 60 years old.
While these steps may sound onerous, a good SMSF administration service will undertake these responsibilities for you. Alternatively, your accountant or financial planner may be able to assist.