New Findings

Corporate Returns:

Smaller corporation audit rates jump as large corporation rates fall
Audit rates for largest corporations
Audits of "passthrough entities" (partnerships and S-corporations)
Audits of corporations
Largest corporations generate most revenue per hour of auditor time
Corporate share of federal income tax collections

Individual Returns:

Audits of individual income tax returns
IRS results in document matching and in finding math errors on returns
Growing importance of correspondence audits

Collection Enforcement:

Levies, liens and seizure activity resuming
IRS delinquent return investigations