Kibbutz Tamuz is located in the city of Beit Shemesh, Israel, which is approximately 30 minutes west of Jerusalem. The kibbutz was founded in the summer of 1987 by nine people who had previously been active in the kibbutz movement on other kibbutzim but had been disillusioned with the traditional kibbutz. The kibbutz belongs to the United Kibbutz Movement and is one of three urban kibbutzim in the country.

Kibbutz Tamuz is an urban kibbutz, and like the traditional kibbutz, Tamuz is a collective. Its 33 members function as a single economic unit, expressing the socialist ideals of equality and cooperation, ideas and praxis. However, unlike the traditional kibbutz, we are located in an urban environment, keeping us in tune with what is happening in society around us.

Equality and collectivism, like in the traditional kibbutz, are expressed through financial, social, and culture cooperation. All salaries and incomes are given to the kibbutz, and the members receive a budget according to the size of their family. The kibbutz covers all housing, health, transportation, and joint cultural expenses, and the personal budget covers the rest (unlike on most traditional kibbutzim, food and utilities are paid for by the member's personal budget). Any jobs or activities that need to be done around the kibbutz are done by members volunteering at weekly general assembly meetings, which also deal with decisions that have to be made by the group.