The occupied West Bank relies on foreign aid and tax collected by Israel on its behalf.
But Israel has withheld tax money before and there are fears that, in the current climate of failing talks, it could do it again.
A recent World Bank report put the cost of the Israeli occupation at $3.4bn each year.
Palestinians say they could be economically sustainable if they had open borders and full access to their land and water resources.
Al Jazeera's Stefanie Dekker reports from Hebron.
Source: Al Jazeera