Universal basic income (UBI) is a social welfare proposal in which all citizens of a given population regularly receive a minimum income in the form of an unconditional transfer payment, i.e., without a means test or need to work. In contrast, a guaranteed minimum income is paid only to those who do not already receive an income that is enough to live on. A UBI would be received independently of any other income. If the level is sufficient to meet a person's basic needs (i.e., at or above the poverty line), it is sometimes called a full basic income; if it is less than that amount, it may be called a partial basic income. As of 2024, no country has implemented a full UBI system, but two countries—Mongolia and Iran—have had a partial UBI in the past. There have been numerous pilot projects, and the idea is discussed in many countries. Some have labelled UBI as utopian due to its historical origin.
There are several welfare arrangements that can be considered similar to basic income, although they are not unconditional. Many countries have a system of child benefit, which is essentially a basic income for guardians...