What Is Lump Sum Tax?

One-time income refers to the taxpayer's only one-time income or income from completing one thing (service) within a certain period of time. The purpose of clarifying one-time income is to prevent taxpayers from reducing the amount of income they receive to zero, and narrowing the income base to avoid paying taxes. Therefore, the one-time income of a taxpayer or the income from the completion of a thing or service should be calculated as a one-time income for taxation. ^[1]