What is the ruling on an employee taking an incentive bonus (difficulty in obtaining employment), and what is the ruling on the amounts already received?

If the incentive is designated for those who are unemployed and you are employed, it is not permissible for you to take it unless with the approval of the responsible authority after informing them of your true situation. Otherwise, you must return what you have taken, even through indirect means, if a direct return would cause you harm.