Auditing companies and checking interest-based calculations

Question:

My brother is a chattered accountant. He makes audit for different companies. He has to check some interest calculations. Is it is allowed in Islam?

Answer:

Bismillahi Taʿālā

Assalāmu ʿalaykum waraḥmatullāhī wabrakātuh,

The prohibition attached to a scribe for interest-based transactions in Islām revolves around assisting in that transaction being carried out. In an audit, however, an accountant reviews the transactions which have already been conducted and completed. Hence the income from such an audit is permissible.

And Allāh Taʿālā knows best,

Wassalamu ʿalaykum,

Mufti Faisal al-Mahmudi