Question Summary:
How much profit is permissible in Islam?

Question Detail:

What is permissible profit in Islam?
In other words what is % of profit (gross + net)?

Answer :

In the Name of Allah, the Most Gracious, the Most Merciful.
As-salāmu ‘alaykum wa-rahmatullāhi wa-barakātuh.
There are no restrictions in Shari’ah on the amount of profit one may make in a business. The seller may make any amount of profits he wishes to as long as the buyer agrees to the price.
However, in determining a markup, one should consider the wellbeing of the customers as well and not be driven by greed only.
 
And Allah Ta’āla Knows Best
Arshad Ali
Student Darul Iftaa
Trinidad
Checked and Approved by,
Mufti Ebrahim Desai.
http://www.daruliftaa.net/
 
وَالْأَصْلُ في هذه الْعُقُودِ عُمُومَاتُ الْبَيْعِ من غَيْرِ فَصْلٍ بَيْنِ بَيْعٍ وَبَيْعٍ وقال اللَّهُ عز شَأْنُهُ { وَابْتَغُوا من فَضْلِ اللَّهِ } وقال عز وجل { ليس عَلَيْكُمْ جُنَاحٌ أَنْ تَبْتَغُوا فَضْلًا من رَبِّكُمْ } وَالْمُرَابَحَةُ ابْتِغَاءٌ لِلْفَضْلِ من الْبَيْعِ نَصًّا بدائع الصنائع(5/ 220)