Communism:

a theory or system of social organization in which all property is owned by the community and each person contributes and receives according to their ability and needs.

Basic Income:

A basic income (also called basic income guarantee, citizen's income, unconditional basic income, universal basic income (UBI), basic living stipend (BLS) or universal demogrant) is typically a form of social security or welfare regime, in which all citizens (or permanent residents) of a country receive a regular, liveable and unconditional sum of money, from the government. The recipient is not required to work or look for work, and the payment is given independent of any other income.

These are not the same thing. Calling them the same thing is just a convenient way to dismiss it.