What a bank owns, including loans, reserves, investment securities, and physical assets. Bank assets are typically listed on the left-hand side of a bank's balance sheet. Bank liabilities, what a bank owes, are listed on the right-hand side of a bank's balance sheet. Net worth is the difference between assets and liabilities. The largest asset category of most bank is loans, which generates interest revenue. A critical asset category used to maintain the safety of deposits is reserves (vault cash and Federal Reserve deposits).