Know exactly how much to purify. See every reason why.
PureInvest works out exactly how much of each holding to purify against AAOIFI Standard No. 21, and lets you see the rationale behind every ruling for free, never behind a paywall. It answers how to practically determine the percentage to purify, so you never give away 5% unnecessarily. Built for investors in the US and Canada.
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Purification estimate
Estimate your purification obligations instantly
Showing a sample. Type any ticker to try your own.
The math, shown
One holding, walked through the purification equation line by line: the same calculation behind every estimate above.
Purification due = Market value × Impure revenue %
Impure revenue is the share of a company's revenue AAOIFI classifies as non-permissible (commonly interest income or other prohibited business lines), as disclosed in its annual financial statements. Positions held for only part of the fiscal year are prorated by days held over days in the year.
What you get
PureInvest is a young product. Here is what works today, and what we are building next.
Available today
Purification Calculator
Enter a ticker or a position size and get the exact purification amount for that holding, broken down line by line.
AAOIFI Compliance Screening
Every stock we cover is screened against AAOIFI's business-activity and financial-ratio thresholds, with a plain Compliant, Needs Review, or Non-Compliant verdict.
On the roadmap
Portfolio view
Connect a brokerage account and see compliance status across every holding at once, instead of checking one ticker at a time.
Status alerts
Get notified if a stock you hold loses its compliance status after a new quarterly filing.
Report summaries
A plain-language explanation of why a stock passed or failed screening, so you don't have to read the filing yourself.
See it before you sign up
This is what the screening and purification calculator actually produce today, using real AAOIFI thresholds and a sample holding.
Product preview: sample data
Microsoft Corp.
MSFT
Screening result
- Impermissible income
- 2.16%
- Debt / market cap
- 1.6%
- AAOIFI thresholds
- 5% / 30%
Purification summary
- Position value
- $5,000.00
- Impure income ratio
- 2.16%
- Purification due
- $108.00
Donating the purification amount may qualify as a charitable tax deduction. Confirm with your tax advisor.
See the stocks we screenBuilt on the AAOIFI methodology.
PureInvest screens every holding against the standards set by the Accounting and Auditing Organization for Islamic Financial Institutions (AAOIFI), the reference body for Islamic finance compliance.
Screening runs in two tiers, based on Shariah Standard No. 21 on investment in shares.
Why we're building PureInvest
We didn't build PureInvest for a market opportunity. We built it because we needed it ourselves.
Read the full story behind PureInvestAbdelrhman Hamouda
Co-founder
Abdelrhman started PureInvest after trying to manage his own halal portfolio and finding that identifying exact revenue sources from quarterly filings, then tracking them across a ten-year horizon, was too easy to get wrong by hand. He built the calculator so no one has to choose between paying high fund fees or doing that work alone. Purification donations may qualify as a charitable tax deduction, so the money that comes out can go back into the community rather than disappearing.
Anas Aqeel
Co-founder
Anas has heard the skepticism that purification is just a workaround for haram earnings, like trying to remove salt already dissolved in water. He is building PureInvest to make the case with data instead of guesswork: automated, auditable screening that restores confidence in the process. Because purification donations may qualify as a charitable tax deduction, the practice of faith can also become a transfer of wealth back into the community.
Become a founding member
The first 100 members lock in 50% off Pro for life: $39.99 a year instead of $79.99. Put down a fully refundable $49.99 deposit to hold your spot, credited toward your subscription at launch and never charged on top.
Spots remaining
One founding cohort of 100. When it fills, the founding rate is gone and Pro returns to $79.99 a year.
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Invest with a clear conscience.
Join the waitlist. No payment, no credit card required. The reasoning behind every verdict stays free.
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