Beginning January 1, 2018, the IRS will begin implementing Section 7345 of the Internal Revenue Code to certify tax debt to the State Department.  This will allow the State Department to revoke or withhold the issuance of passports to delinquent U.S. taxpayers.

To warrant IRS certification to the State Department, the IRS debt has to

When a US citizen relinquishes citizenship or a long-term US resident (green card holder) leaves the US, new rules in effect since June, 2008 can apply to treat the expatriate as if he or she sold all of his or her assets (worldwide) as of the date of expatriation, triggering an immediate income tax on