In financial accounting, a cash flow statement or statement of cash flows is a financial statement that shows a company's incoming an outgoing money (sources and uses of cash) during a time period (often monthly or quarterly). The statement shows how changes in balance sheet and income accounts affected cash and cash equivalents, and breaks the analysis down according to operating, investing, and financing activities. As an analytical tool the statement of cash flows is useful in determining the short-term viability of a company, particularly its ability to pay bills. International Accounting Standard 7 (IAS 7), is the International Accounting Standard that deals with cash flow statements.