
Updated per-taxpayer breakdown (using ~160 million federal tax filers)Fraud alone (GAO): $1,456–$3,256 (unchanged).
Inefficiency (duplication + high-risk areas): $250–$625 (unchanged).
Taxes not paid by cash/underground businesses (IRS net business/self-employment portion): ≈ $2,313.
Combined total (fraud + inefficiency + cash/underground tax gap): Roughly $4,019–$6,194 per taxpayer per year (low end uses fraud low + inefficiency low + tax-gap add; high end uses fraud high + inefficiency high + tax-gap add).Key
This is the real problem
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