the tax accounts provide an alternative measure of income. Book income is based upon GAAP, rules promulgated by FASB and the SEC. However, taxable income is based on the tax code, promulgated by Congress. The two systems have different goals and are influenced differently. Besides differences in the measurement of income, the statement of deferred tax accounts and the reconciliation of book and taxable income in the tax footnotes potentially provide users of the financial statements with information about the firm’s profitability