Insights

Data Analysis

This collection brings together IRS data and carefully limited trend analysis. The figures provide useful context for tax procedure, but they do not predict the outcome of any individual matter.

Editorial illustration of multiple clocks, representing IRS audit timelines and tax procedure.

IRS Audit Statistics: 2026 Reference Guide

Current IRS audit statistics on examination volume, recommended additional tax, correspondence audits, field audits, and individual audit coverage.

Editorial illustration of multiple clocks, representing IRS enforcement activity over time.

IRS Enforcement Trends: What FY 2021 to 2025 Data Show

A five-year IRS Data Book reference on audit closures, high-income examinations, CP2000 notices, and nonfiler enforcement.

Editorial illustration of multiple clocks, representing IRS appeals and Tax Court timelines.

IRS Appeals and Tax Court Trends: FY 2021 to 2025

A five-year IRS Data Book reference on Appeals workload, Collection Due Process inventory, and the Tax Court docket.

Editorial illustration of multiple clocks, representing IRS penalty activity over time.

IRS Penalty Trends: What FY 2021 to 2025 Data Show

A five-year IRS Data Book reference on estimated-tax, failure-to-pay, accuracy-related penalties, and abatements.

Editorial illustration of multiple clocks, representing IRS collection activity over time.

IRS Collection Trends: FY 2020 to 2025 Data

A six-fiscal-year IRS Data Book reference on liens, levies, delinquent-return investigations, payment plans, and offers in compromise.