Which government department is tasked with advising on financial regulations?

The Australian Treasury is the government department responsible for advising on financial regulations. It plays a crucial role in shaping the financial system by developing economic policy, managing government finances, and providing strategic advice related to fiscal measures. The Treasury's responsibilities include oversight of financial markets, development of legislation and regulations, and coordination of fiscal policy, all of which fundamentally influence the structure and stability of the nation's financial system. This makes it integral in formulating regulatory frameworks that govern financial institutions and ensure the integrity of financial markets.

The other options have significant roles in the financial system but focus on different aspects. The Australian Securities and Investments Commission is primarily responsible for administering company and financial services laws to protect consumers, investors, and creditors, rather than advising on regulations. The Reserve Bank of Australia manages monetary policy and financial stability but does not focus on developing regulations. The Council of Financial Regulators coordinates the efforts of the various regulatory bodies but does not advise on regulations itself; rather, it acts as a forum for collaboration among regulators.