43. Are there limits on the amount that third parties can spend on election campaign activities?

https://www.aec.gov.au/news/disclosure-legislative-changes.htm

From 1 July 2026, significant third parties, associated entities and third parties are capped expenditure entities and also subject to expenditure caps:
Total expenditure of $11.25 million
Divisional limit of $100,000
Senate cap is a formula, multiplying the Senate base amount of $25,000 by the number of divisions in that state or territory.