Tax Return Preparer Accountability Act of 201 9 This bill requires the Department of the Treasury to regulate tax return preparers who are not otherwise subject to regulation. The bill authorizes Treasury to impose a $1,000 penalty for each federal tax return or other document prepared by a tax return preparer during a period in which such preparer (1) is not in compliance with applicable Treasury regulations, or (2) is suspended or disbarred from acting as a tax return preparer under such regulations.