ASC 740-270, Interim Reporting, prescribes the use of an estimated annual effective tax rate (ETR) for calculating a tax provision for interim periods. This guidance focuses primarily on how to compute interim period tax provisions, though it does not provide guidance on the presentation of deferred tax assets and liabilities and other tax-related balance sheet tax accounts in interim periods. This chapter walks through some of the key considerations and complexities in accounting for income taxes during interim periods.