An intergovernmental agreement (IGA) is any agreement made between the Commonwealth and state and territory governments (the states). While IGAs are not legally binding, they express the commitment of governments to work together on certain objectives or goals. For most agreements, the IGA is in effect as soon as it is signed by the Commonwealth and one state or territory.

There are many different agreements that fall under the category of an IGA.

When an agreement involves funding from the Commonwealth to the states for a project, this is covered under the IGA on Federal Financial Relations. This IGA significantly reformed the Commonwealth’s financial relations with the states. It recognised that the states have primary responsibility for many areas of service delivery but that coordinated action is necessary to respond to Australia’s economic and social challenges. Under the IGA on Federal Financial Relations, payments to the states are outlined through schedules to one of five overarching Federation Funding Agreements (divided according to sector), or through one of four National Agreements.

For current and past funding agreements, see the Federal Financial Relations website.

Intergovernmental agreements

On 7 December 2012, COAG reaffirmed its ongoing commitment to a National Disability Insurance Scheme (NDIS) by signing an Intergovernmental Agreement for the NDIS Launch
This agreement sets out emergency response arrangements, including cost-sharing arrangements, for responding to biosecurity incidents that primarily impact the environment and/or social amenity and where the response is for the public good.
This agreement was developed to improve the national biosecurity system by identifying the roles and responsibilities of governments and outlines the priority areas for collaboration to minimise the impact of pests and disease on Australia’s economy, environment and the community.
An agreement to establish a national system of rail safety regulation and investigation to include uniform regulation and a single national rail safety regulator, complemented by a national rail safety investigator.
An agreement between the Commonwealth and the States and Territories on the establishment of a national maritime safety jurisdiction and regulator for all commercial vessels in Australian waters.

Council of Australian Governments archive

On 29 May 2020, National Cabinet agreed to the cessation of the Council of Australian Governments (COAG). The National Library of Australia's Trove service provides an archive of the COAG website.