Legal Definition of Quota:  (a) The proportional part of a whole that is owned to a person, or to a group of people or to a particular district or state. (b) The limited number of people that are permitted to emigrate to this country from various foreign countries. Each country has its own number, or quota, allotted to it | Learn about the legal definition of quota and its implications for businesses. Quotas determine the proportional part of a whole that you own or can access, whether it’s ownership in a company or the number of immigrants allowed into a country. Gain insights into how quotas can impact your business and make informed decisions to ensure compliance and maximize success