Investment banking is all about helping the investor and the corporation to help with their financial needs. It is of utmost importance for the banker to draw financial conclusions to facilitate the transaction with ease. Here are some of the most important financial concepts to be known by every interview candidate for an investment banking profile. Terms related to the financial statements like working capital, depreciation, enterprise value, financial ratios like liquidity ratio, solvency ratio, valuation ratio and profitability ratios, methods of valuations like DCF, FCFF etc, cost of capital, capital budgeting, recent M&A transactions and most recent funded startups, accounting post M&A transaction etc.