Zekat is giving money to the poor.
according to Islam there is some neccessary donate and optional donate.necessary donates are:Khums (is 1/5 of the extra income of each year and may have different law in Shia and sunni)Zekat (only for Muslims who produce some special products)Zekat of Fitr in Eid e Fitr (near 5$ per capita in each ramadan month)optional donate is unlimited and the extra of life needs is recommended in Islam to be donated and has high reward in Islam.
Zakah is an annual tax, at the end of the year a Muslim gives a percentage of what she or he has left to a collecter, who then gives it to a needy causeZakah is when u have to give 2.5% of your income for the year to Allah this is called Zakah. If poor people havent got extra money then they don't have to pay, but people (rich) who have money left must may Zakah.