Contested question 8 of 10
Why are screened stocks 'halal' when the company has debt, and why 30% or 33%?
Nearly every listed company carries some interest-bearing debt or earns some interest income, so a strict zero-tolerance rule would exclude the entire market. Scholars therefore set tolerance thresholds for incidental impermissible activity, most commonly one-third (33%) of assets or market capitalization for debt, and 5% of revenue for impermissible income, with purification of the tainted share. Different standards (AAOIFI, Dow Jones, MSCI, FTSE, S&P) draw the lines slightly differently, which is why screeners disagree.
Why are screened stocks 'halal' when the company has debt, and why 30% or 33%?
Nearly every listed company carries some interest-bearing debt or earns some interest income, so a strict zero-tolerance rule would exclude the entire market. Scholars therefore set tolerance thresholds for incidental impermissible activity, most commonly one-third (33%) of assets or market capitalization for debt, and 5% of revenue for impermissible income, with purification of the tainted share. Different standards (AAOIFI, Dow Jones, MSCI, FTSE, S&P) draw the lines slightly differently, which is why screeners disagree.
- Threshold screening with purification is permissible (AAOIFI Standard No. 21)
- No tolerance; avoid companies with interest-bearing debt (A minority of scholars)
- Threshold screening is a concession, not an ideal (Scholars who permit it while urging stricter personal practice)
- The facts of the specific contract decide which position applies; verify before you sign
Source: HalalWallet (halalwallet.us)
The criticism, at full strength
A company that borrows at interest is engaging in riba; calling its shares halal because the ratio is under a threshold is arbitrary.
What is true in it
- The thresholds are juristic judgments, not revealed numbers; the one-third figure draws on a hadith about bequests and the principle that a small share does not define the whole.
- Screeners using different denominators (total assets versus market cap) or lookback windows can reach opposite verdicts on the same stock.
The documented positions
1Threshold screening with purification is permissible
Held by
AAOIFI Standard No. 21; the Shariah boards behind the major Islamic indices; most fund scholars
Reasoning
A minority shareholder neither controls nor consents to the company's borrowing; the impermissible element is incidental and can be purified by donating the proportionate income.
2No tolerance; avoid companies with interest-bearing debt
Held by
A minority of scholars
Reasoning
Shareholding is partnership, and a partner is responsible for the partnership's dealings. Mixed companies should be avoided altogether.
3Threshold screening is a concession, not an ideal
Held by
Scholars who permit it while urging stricter personal practice; some boards prefer 'pure' portfolios where available
Reasoning
The ceilings were adopted so Muslims could participate in equity markets at all. Where an investor can avoid interest-exposed companies without undue hardship, some scholars encourage it, and sukuk or screened real-asset funds are offered as alternatives.
Where the difference shows up: one company, debt at 31% of market cap
A large technology company carries interest-bearing debt equal to 31% of its average market capitalization and earns 2% of revenue from interest on its cash pile. Under AAOIFI (Standard 21): fail, because debt exceeds 30%. Under the Dow Jones Islamic Market, S&P Shariah, and FTSE Shariah methodologies: pass, because the threshold is 33% (or 33.33%). So one app shows the stock as halal and another shows it as not, and both are applying a published standard correctly. The 2% interest income passes every screen (the common ceiling is 5%), but it must be purified. The reader's choices are: pick one standard and apply it consistently, or hold only stocks that pass all of them. What is not defensible is using whichever screen passes the stock you already own. The thresholds themselves derive from a hadith-based principle that 'a third is much' and from the fiqh principle that a small impermissible component does not make the whole impermissible; the exact number (30 vs 33) is a juristic judgment, not a revealed figure, which is why the standards differ.
| Point of difference | Conventional | Compliant structure |
|---|---|---|
| Debt / market cap threshold | AAOIFI: 30% | DJIM, S&P, FTSE, MSCI: 33-33.33% |
| Result for this company (31%) | Fail | Pass |
| Impermissible income ceiling | 5% (common) | 5% (common); purification required |
What to verify before you decide
- Check which standard your screener or fund follows and the denominator it uses.
- Check whether the fund publishes a purification ratio or does it for you.
- If your scholar follows the stricter view, prefer sukuk, real assets, and funds that exclude leveraged companies.
Bring the answers, and the contract, to your scholar. If a provider will not answer these in writing, that is itself an answer.
Go deeper on HalalWallet
Primary sources
- S&P Dow Jones Indices, Dow Jones Islamic Market Indices Methodology
- MSCI Islamic Index Series Methodology
- AAOIFI Shari'ah Standard No. 21: Financial Papers (Shares and Bonds)
- S&P Dow Jones Islamic Market Indices methodology
- MSCI Islamic Index Series methodology
- FTSE Shariah Global Equity Index Series ground rules
Standards bodies, fiqh councils, named scholars, index methodologies, and academic works only. No forums, no aggregators.
Questions people ask about this
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Editorial Team, HalalWallet
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Reviewed quarterly and updated for major content changes.
Sources and review process
This page is reviewed against HalalWallet editorial standards and source documentation.
Reviewed by: HalalWallet Editorial Team
Last reviewed: 2026-10-01
- S&P Dow Jones Indices, Dow Jones Islamic Market Indices Methodology
- MSCI Islamic Index Series Methodology
- AAOIFI Shari'ah Standard No. 21: Financial Papers (Shares and Bonds)
- S&P Dow Jones Islamic Market Indices methodology
- MSCI Islamic Index Series methodology
- FTSE Shariah Global Equity Index Series ground rules
- HalalWallet Trust Standard
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