The following sections discuss in more detail (1) our report on the financial statements and internal control over financial reporting, which includes a matter of emphasis related to the tax gap and tax expenditures, other matters related to the required supplementary information (RSI)1 and other information included with the financial statements, and two significant financial management challenges confronting IRS related to safeguarding hard copy taxpayer receipts and information and its exposure to significant improper refunds from identity theft; (2) our report on compliance with laws, regulations, contracts, and grant agreements; and (3) IRS's comments on our evaluation.