Haram Income

Haram income for a publicly traded company generally falls into a short, well-defined list: interest income and interest-based lending (riba), alcohol production or distribution, gambling and betting operations, pork and pork-adjacent products, tobacco, conventional (non-Islamic) banking and insurance, weapons and defense manufacturing (treated as haram by most standards though some scholars distinguish defensive contracts), and adult entertainment. For an individual, haram income can also include wages earned working directly in one of these industries, or profit from a side business built on a prohibited product. The common thread across all of these is that the income traces back to a transaction or activity Islamic law explicitly prohibits, not simply an activity some people consider distasteful.

Screening standards distinguish between a company whose core business is haram (a brewery, a casino operator, a conventional bank) and a company whose core business is permissible but which earns a small amount of incidental haram income anyway (a software company earning interest on its cash reserves, for example). The first category fails the business activity screen outright and no percentage threshold rescues it. The second category is tolerated up to a point, capped at 5% of total revenue under AAOIFI and most other major standards, because virtually every large public company holds interest-bearing cash and few investable companies could ever be pure enough to pass a zero-tolerance test. This is the practical compromise that makes equity investing possible at all under a Shariah screen.

If you own shares in a company that earns a small percentage of incidental haram income (again, this only applies to otherwise-compliant companies under the 5% ceiling, not to companies whose core business is prohibited), the standard guidance is to purify it: calculate the same percentage of your dividend income and donate that amount to charity, without claiming it as your own charitable giving for religious credit, since it was never rightfully yours to keep. If a company's core business is haram, purification does not apply, the standard guidance is to divest from the holding entirely rather than attempt to "clean" a fundamentally impermissible investment through donation.