Provided that they have information, the rental fee is deemed to have been collected in case of depositing money in their names, enforcement office, public institution, notary, bank or mail. The assignment (It is not checked whether the assignment is equivalent. In the case of prudent assignments, the condition of collection of the invoice shall not be required.) of the receivable arising from self-employment gain to another person or exchange with the debt to the customer is subject to collection. In self-employment earnings, the collection should not be considered solely as the cash collection of the proceeds. Assignment (transfer) of the debt in the form of savings in the form of transfer (reciprocal) is not examined. The transfer of prerequisite is not sought in the transfer of prudent.