Stop Business with Terrorists Act of 2009

Stop Business with Terrorists Act of 2009 - Subjects the parent company of a foreign entity that violates certain executive orders prohibiting certain business transactions with Iran (or other such prohibitions imposed on Iran under the authority of the International Emergency Economic Powers Act) to penalties to the same extent as if the parent company had engaged in such violations.

Makes such prohibitions and penalties inapplicable to a parent company of an entity on which the President imposed a penalty if the parent company divests or terminates its business with such entity not later than 90 days after enactment of this Act.