Purifying Mixed-Company Income: The Practical Method

Short answer: Purification amount = the ratio of haram (interest etc.) income in the company's total income × the dividends/income you received. Example: if 3% of the company's income is interest-sourced, purify 300 taka out of a 10,000-taka dividend, given away without expecting reward. This is not zakat and cannot be deducted from your zakat. Details: Find the ratio in the annual report (interest income / total revenue) or from a shariah-screening service's purification ratio. Without data, estimate cautiously (err high). Scholars differ on purifying capital gains — the cautious view applies the same ratio to gains; the easier view purifies dividends only. This small effort is the price of taqwa; a fully interest-free alternative is better when available. Evidence: Quran 2:279; Sahih Muslim 1015; 'whoever avoids doubtful matters protects his religion and honour' — Sahih al-Bukhari 52, Sahih Muslim 1599; the purification methodology of contemporary scholars and shariah boards. For complex individual cases, consult a qualified scholar.