The Treasury Inspector General for Tax Administration issued a report on identity theft and tax refund fraud. While detection of identity theft has improved through expanded identity theft filters and account locks, identity theft still results in billions of dollars in potentially fraudulent tax refunds each year. The IRS is taking additional actions to address identity theft such as clustering returns, developing leads from the Identity Theft Clearinghouse, and expanding cooperation with law enforcement. However, more remains to be done to prevent the issuance of billions of dollars in fraudulent refunds resulting from identity theft.