Purification
تطهير
Pronunciation: tat-HEER
The practice of donating the haram portion of investment returns (such as interest income) to charity.
Definition
The process of cleansing investment returns by donating the impermissible (haram) portion to charity. Even Shariah-screened stocks may generate small amounts of interest income or revenue from non-compliant activities. Investors calculate the percentage of impure income and donate that proportion of their returns to charity (without intending it as sadaqah or seeking spiritual reward for that portion).
Halal investment platforms and robo-advisors like Wahed Invest often automate purification calculations. AAOIFI and other bodies provide guidelines for calculating the purification ratio.
Related Terms
Halal Screening
The process of evaluating stocks and investments for compliance with Islamic principles.
Halalحلال
Permissible under Islamic law — in finance, products and transactions that comply with Shariah principles.
Zakatزكاة
One of the Five Pillars of Islam — an obligatory annual 2.5% charitable contribution on qualifying wealth.
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Purification (تطهير) — The practice of donating the haram portion of investment returns (such as interest income) to charity. The process of cleansing investment returns by donating the impermissible (haram) portion to charity. Even Shariah-screened stocks may generate small amounts of interest income or revenue from non-compliant activities.
- The practice of donating the haram portion of investment returns (such as interest income) to charity.
- Category: Investment
- Related: Halal Screening, Halal, Zakat
- Compare related Shariah-compliant products on HalalWallet
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This page is reviewed against HalalWallet editorial standards and source documentation.
Reviewed by: HalalWallet Editorial Team
Last reviewed: 2026-07-01
Editorial Team, HalalWallet
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Reviewed quarterly and updated for major content changes.