A Chief Financial Officer (CFO) plays a crucial role in a company's financial management and strategic planning. Here are some of the primary responsibilities of a CFO:

1. Financial Management: This includes oversight of the company's overall financial operations, including budgeting, forecasting, and cash flow management.
2. Financial Reporting: The CFO ensures that all financial reports are accurate and comply with regulations. This involves not only profit and loss statements, but also balance sheets, and cash flow statements.
3. Strategic Planning: CFOs play a significant role in the company's strategic planning process, which may include merger and acquisition (M&A) decisions, investments, and capital structure.
4. Risk Management: The CFO assesses financial risks and develops strategies to mitigate them. This could include credit risk, operational risk, market risk, and liquidity risk.
5. Investor Relations: The CFO communicates with shareholders, financial analysts, and other stakeholders. This often includes explaining the company's financial results and growth strategies.
6. Compliance and Control: CFOs ensure that the company is compliant with all financial and audit requirements. They also design and supervise internal controls over financial reporting.
7. Treasury Duties: The CFO oversees the company's cash flow, investments, and capital market activities, such as issuing bonds or shares.
8. Performance Tracking: CFOs monitor the company's performance by developing and tracking key financial metrics.
9. Leadership: As part of the executive team, the CFO provides leadership and direction for the company's overall strategy.
10. Liaison with External Auditors: The CFO coordinates with external auditors and provides them with all necessary financial records and information for auditing.

The exact responsibilities can vary depending on the size and industry of the company, as well as the specific business model and strategy.