Semua pendapatan Negara dikumpulkan di Bait al-Mal, dan dari situlah pelbagai fungsi Negara dibiayai. Perkara-perkara yang menjadi tujuan peruntukan dana tersebut semuanya diputuskan berdasarkan pandangan Khalifah dan ijtihadnya.

All of the revenues of the State are collected in the Bait al-Mal, from where the various functions of the State are funded.The matters for which the funds are allocated are all decided by the view of the Khaleefah and his ijtehad.

Perbelanjaan Bait al-Mal berpusat pada enam kategori berikut:

The expenditure of the Bait al-Mal is centred around the following six categories :

Bait al-Mal mempunyai akaun khas tempat wang zakat dikumpulkan. Lapan golongan yang berhak menerima dana zakat dibiayai daripada akaun ini.

The Bait al-Mal has a special account in which the money of zakat is collected. The eight categories of people entitled to partake of the zakat funds are supplied from this account.