If State Can't Take Tax Other Than Zakat, What Will Be Taken From Non-Muslims
There is no compulsion on an Islamic Government as far as non-muslims are concerned. Their decision is to be based after debate and consultation in the parliament. It may be equal to Zakat on Muslims or it may be more or less than that. However, every Islamic Government is bound to observe both merit and justice in all circumstances. There exists a solid basis on grounds of reason and logic that a state must collect some wealth to run its affairs. This amount has been quantified by Allah for an Islamic Government as far as Muslims are concerned. As for non-muslims, this needs to be decided by the collective decision of the society through their representatives. Following is a useful discussion in this regard: Please refer to the video below from 1:03 to 10:26 https://youtu.be/_imOd5tyvGs?t=63