Every dollar the IRS spends on auditing brings in $2.17 in tax, and every dollar the IRS spends auditing the wealthy generates $6.29 in tax. A dollar spent auditing the top 10% brings in $10:
https://www.timesfreepress.com/news/2024/dec/01/opinion-the-irs-shows-what-government-efficiency/
Audits are durable sources of tax. People who've been burned by an audit are far more honest in the decade after that audit.
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