One immediate effect will be to prevent Mr Lieberman, noted more for his confrontational approach than his diplomatic tact, from going to work after the foreign ministry headquarters in Jerusalem - just a few hundreds from the Knesset, Israel's parliament - also shut its doors.
Yigal Palmor, the foreign ministry spokesman - departing from his customary role of defending his country's official positions on the global stage - accused the government of refusing to negotiate seriously.
"The treasury have shown us nothing but indifference and disdain and have left us with no strike but to go on indefinite strike," he said. "We have to at least get their attention. They seem only to give us the cold-shoulder and give the impression that they can't be bothered. As long as there is no negotiations, there will be no diplomatic service."