ZATCA — Zakat Tax and Customs Authority — is Saudi Arabia's primary tax authority responsible for administering Zakat (Islamic wealth tax payable by Saudi nationals and GCC citizens), corporate income tax (payable by foreign-owned entities at 20%), Value Added Tax (15%) and customs duties. All businesses in Saudi Arabia must register with ZATCA, file periodic returns and comply with e-invoicing (Fatoorah) requirements. Failure to comply with ZATCA obligations attracts significant financial penalties. Post-incorporation ZATCA registration is a mandatory step for all new companies in Saudi Arabia. Inclusive Solutions supports ZATCA registration, VAT compliance and annual tax filing.