Business Activity Screening

Shariah screening under AAOIFI, and comparable standards, runs two tests in sequence. Business activity screening comes first because it acts as a threshold gate: if a company fails it, the numerical financial-ratio screen is never even applied. Only companies whose core operations are themselves permissible move on to have their debt and impure-income ratios checked.

The standard exclusion categories used across AAOIFI-aligned screens are alcohol production or distribution, gambling and gaming operations, conventional interest-based banking, lending, and insurance, pork and pork-related products, tobacco manufacturing, weapons and defense manufacturing, and adult entertainment. A company is excluded if any of these represents a meaningful share of its core revenue, not merely an incidental transaction.

The screen looks at what a company is fundamentally in the business of doing, not every transaction it is ever party to. A grocery retailer that carries a small alcohol aisle alongside its groceries is judged on how central that revenue actually is to the overall business, and screening providers differ on exactly where they draw that line. A company literally in the business of brewing beer or running a casino, by contrast, fails outright with no threshold to weigh.

Unlike the impure-income financial-ratio screen, where a small percentage is tolerated and purified, business-activity failures are typically treated as a hard exclusion. There is no accepted practice of purifying your way past owning a majority stake in a conventional bank or a casino operator. If a stock fails this first tier, the standard guidance is divestment, not purification, since the core business itself, not a small side stream of income, is the problem.