How do I calculate Zakaat on stock? DWQA Questions › Category: zakaat › How do I calculate Zakaat on stock? 0 Vote Up Vote Down admin Staff asked 8 months ago I have a stock of goods which I bought on credit facilities without interest. How do I calculate the Zakaat on the stock? 1 Answers 0 Vote Up Vote Down admin Staff answered 8 months ago Evaluate the stock at market selling price (invoice price) as at 1st Ramadhaan. Then deduct the creditors amount from that. Zakaat due is 2.5% on net.