How Shariah Screening Works—and Who Sets the Standards

After learning that a permissible-looking company may still need a closer review, the next question is usually: who actually decides whether a stock is halal? The short answer is that there is no single global office that stamps every company “halal” or “haram.”

Instead, halal screening involves a combination of Islamic scholars, standard-setting organizations, financial analysts, index providers, funds, and technology platforms. They all attempt to answer the same broad question: does this company meet a defined Shariah-compliance methodology? The important words there are defined methodology.

A screen is not a guess A Shariah screen is a structured process. It is not someone looking at a company’s website for five minutes and deciding whether its logo feels halal-ish.

The process usually begins by looking at the company’s main business activity. If a company’s core operations involve alcohol, gambling, conventional interest-based finance, pork, pornography, or other prohibited activities, it is generally excluded.

After that initial business review, the company is evaluated through financial measures. Depending on the methodology, the review may look at interest-bearing debt, cash or securities that earn interest, accounts receivable, and any incidental non-permissible income. Put simply, the first part asks what the business does. The second asks how the business is financially structured. Both questions are needed because a company can make a permissible product while still having financial practices that require review.

Who creates the standards? There are several types of organizations involved in this process. One of the most recognized standard-setting bodies in Islamic finance is the Accounting and Auditing Organization for Islamic Financial Institutions, commonly called AAOIFI. AAOIFI publishes Shariah, accounting, governance, ethics, and auditing standards for Islamic financial institutions, including a standard on financial papers such as shares and bonds. I personally feel comfortable with their methodology (not a recommendation, just sharing my opinion). AAOIFI does not personally screen every public company in the world. Think of it more like an organization that helps establish the framework that others may apply.

Then there are index providers and financial-data companies. You may recognize names such as S&P, Dow Jones, MSCI, FTSE, and Bloomberg. Some of these firms offer Shariah-compliant indexes or work with specialized Islamic-finance research partners and Shariah scholars to screen large groups of public companies. For example, S&P’s Shariah indexes are screened by Ratings Intelligence, which works with a Shariah Supervisory Board made up of Islamic scholars. S&P states that the underlying index constituents are reviewed for compliance monthly.

There are also halal-screening applications, funds, research firms, and advisors that use a particular methodology to classify individual stocks or build Shariah-compliant investment products. So when you see that a company is “halal” on an app or in a fund, a good next question is: Halal according to which methodology? That is not meant to make you distrust every screener. It is meant to help you understand what you are relying on.

Why results can differ This is where people can become confused. They search a company on one app and see that it is compliant. They search the same company on another service and see that it is not. Then they assume someone must be wrong, or that halal investing is too unclear to take seriously. The reality is usually more nuanced.

Most recognized methodologies agree on many major principles. They generally exclude businesses built around clearly prohibited activities and examine financial measures connected to conventional debt, interest-based cash or investments, receivables, and non-permissible income. The differences often come from how those principles are applied.

One methodology may use market capitalization as the reference point for a financial ratio, while another may use total assets. One may use a different averaging period. Another may include a particular type of income, subsidiary, or business line differently. Some may take a stricter view of certain sectors or revenue sources than others. The same company can therefore pass one methodology and fail another without either screener simply making up the result. Think of it like two people arriving at the same destination via different routes. They both agree on where they are trying to go. They may not agree on every turn along the way.

What an investor should do You do not need to become a Shariah scholar, accountant, and financial-data analyst before you begin learning about halal investing. You should avoid treating a green checkmark on an app as the end of your research. At a basic level, know what methodology your preferred screener uses. Know whether it is reviewed by qualified scholars or a Shariah board. Know how often the information is updated. And if you see different results for the same company, do not panic. First understand the methodology behind each result. To learn more, explore our screening kit that breaks all this down in greater and simpler detail.

Remember, perfection is only for Allah (SWT). The goal is not to find a shortcut that eliminates every difficult question. The goal is to build a process you can understand, apply consistently, and stand behind.

In the next article, we will look more closely at the next natural step after screening-purification.

Thank you for reading. Keep searching forward.