GOLD
The amount of gold that requires Zakat is around 85 grams, or more and when this amount remains unchanged in one's possession for one full year.
The required Zakat in this case is one-fourth of a tenth (2.5%).
SILVER
Silver requires Zakat to be paid when it reaches 595 grams or more and when this amount remains unchanged in one's possession for a full year. The amount of Zakat required in this case is also one-fourth of a tenth (2.5%)
CASH
When it is worth the amount of gold or silver that requires Zakat and when this amount remains above the Nisab value for a full year. Zakat in this case is also one-fourth of a tenth, or 2.5%.
Items Used for Business Transactions and Commercial Purposes
This requires a fourth of a tenth (2.5%) Zakat to be paid on them, when they remain a full year without decreasing below the Nisab amount. The minimum amount of the value of business merchandise that requires Zakat to be paid is the same as gold and silver, and the merchant could use either standard to estimate how much Zakat he should pay. An example: £500 or any other five hundred money that you kept in the bank or any other places for 1 year, you must pay £12:50, Then every 1000 is 25.
LIVESTOKE
The calculation of Zakat on livestock is based on the total number of animals owned. Zakat would be paid accordingly, and in the form of animals.
5-9 camels – 1 sheep to be paid
40-120 sheep – 1 sheep to be paid
30 – 39 Cows – 1 cow one year of age to be paid.
BUSINESS TRADE
Zakat on stocks is a different matter; there are several opinions on how stocks get treated, the rate that applies, as well as the portion of the portfolio you're required to pay Zakat on. Some scholars find that you should pay 2.5% irrespective of your intention (e.g. to trade or invest).
CROPS
The amount of fruits and grains that require Zakat is five Wasqs, each of which is 60 sa’, and a Sa’ is almost 3 kg. Hence, the minimum Nisab that requires Zakat on fruits and grains is 300 Sa’ (or approximately 900 kg). If the crop is watered without much effort, such as by spring water or by rain, it requires one-tenth (10%) as Zakat payment. This means that half of Wasq (90kg) is due for every five Wasqs. If such produce is watered with effort, such as from wells or irrigation channels, it requires half of a tenth (5%) as Zakat payment. This means for every five Wasqs, there is a quarter of a Wasq (45kg) due for Zakat.
