Article 2, as amended by Law No. 11 of 2022, establishes the core mandate for tax liability in Qatar. It imposes an annual tax on the total taxable income of a taxpayer derived from sources within the State during the preceding tax year. This article serves as the foundational charging provision for the income tax regime. While previously specifically addressing bank interest and commissions earned abroad related to Qatari activities, the 2022 amendment streamlines the language to focus on income arising from sources in the state, ensuring alignment with updated jurisdictional tax principles.