The Zakat, Tax and Customs Authority (ZATCA) oversees the way Saudi Arabia’s tax policy and Islamic laws touch and form an organized decision-making system. Knowing about withholding tax, zakat, and the nisab limits is necessary for business within the Kingdom or collaborating with Saudi clients to keep both their finances and religious obligations in check. The structure is clearly defined, can be enforced, and uses more digital tools, so there is little chance for errors or delays.