Which stocks pass AAOIFI compliance screening and are eligible for a tax-efficient Stocks & Shares ISA? This guide answers the question every UK Muslim investor asks every January.
Any stock listed on a recognised stock exchange (LSE, NYSE, NASDAQ, etc.) can be held inside a UK Stocks & Shares ISA. The ISA wrapper itself is tax-neutral — capital gains and dividends inside an ISA are free from UK tax. There is no additional screen for "ISA eligibility" beyond exchange listing.
The halal screen is entirely separate. Under AAOIFI standards, a stock must pass three criteria simultaneously:
Total interest-bearing debt must not exceed 30% of market capitalisation (AAOIFI Standard No. 21).
Revenue from prohibited activities (alcohol, tobacco, conventional finance, etc.) must be less than 5%.
Cash and interest-bearing investments must not exceed 30% of market capitalisation.
Illustrative examples based on Q1 2026 filings. Ratios change every quarter. Verify live on Zeenox before investing.
| Ticker | Company | Debt Ratio | Haram Rev. | Verdict |
|---|---|---|---|---|
| MSFT | Microsoft Corporation | 28.4% | 2.1% | Compliant |
| NOVO.B | Novo Nordisk | 19.7% | 0.0% | Compliant |
| WISE | Wise PLC | 8.2% | 0.0% | Compliant |
| NVDA | NVIDIA Corporation | 22.1% | 0.3% | Compliant |
| AAPL | Apple Inc. | 28.4% | 2.1% | Compliant |
| TSM | Taiwan Semiconductor | 14.3% | 0.0% | Compliant |
| AMGN | Amgen | 29.8% | 0.0% | Compliant |
| MA | Mastercard | 31.6% | 0.0% | Review |
These stocks frequently appear in "ethical" or ESG funds but fail AAOIFI screening.
AWS and Prime generate significant interest income from financial services integrations.
Core business model is interest-adjacent; fails on haram revenue under strict AAOIFI interpretation.
Bank — interest income constitutes the majority of revenue. Clearly non-compliant.
Your annual ISA allowance is £20,000. It does not roll over. Every year that passes with your allowance uninvested in a Cash ISA is a year of tax-free growth that cannot be recovered. The most common reason UK Muslim investors miss the deadline is the time it takes to verify compliance — a problem Zeenox solves in under 5 seconds per stock.
Screen your ISA stocks now →This page is for educational purposes only and does not constitute financial or religious advice. Compliance ratios change quarterly as companies file updated financials. Always verify current data before investing. Consult a qualified financial adviser and, where appropriate, a scholar for religious rulings specific to your circumstances.