Here are links to online resources which provide common and public information, useful for personal finance. If there are any more important resources that are deserving to be here then please let the mods at r/ausfinance know.
Must know
Moneysmart: free tools, tips and guidance to take control of your money and build a better life.
Australian Financial Complaints Authority: free & independent dispute resolution for financial complaints
Australian Stock Exchange Investor Education Centre
The ASX ETF investor course is an excellent series of videos that can help you learn more about ETF’s and how they work.
Tax
Redundancy and Leaving your job
Centrelink/Human Services
myGov – including the ATO lost super tool
Centrelink COVID-19 resources and payments
Payment and Services Finder online tool
Economy
Australian Bureau of Statistics
yourmortgage.com.au rent vs. buy calculator