In addition, they will have to fully investigate if a debtor claims that there is no money owed.

BBC: Debt collectors face tougher controls

But, now that the inquiry has been issued, the challenge will be for over-burdened IRS staff in the service units to read and respond to our clarification that there is no tax owed and adjust their records accordingly.

FORBES: Stop the Machine! IRS Document Mismatches, Form 8949

In 2005, 10, 680 of those with high expanded incomes had no U.S. tax liability, and 5, 420 owed no tax worldwide.

FORBES: Magazine Article