On 28 March 2018, the Australian Government introduced Treasury Laws Amendment (OECD Multilateral Instrument) Bill 2018 (the MLI Bill) into Parliament, together with a detailed explanatory memorandum. The MLI bill will need to be passed by the House of Representatives and the Senate, and receive Royal Assent to be enacted in Australia. Once the domestic ratification process has been completed, Australia would need to deposit its instrument of ratification

The MLI will enter into force for Australia on the first day of the month following the expiration of a period of three calendar months beginning on the date of deposit of such instrument.