The document summarizes income tax collection in Pakistan. It discusses that income tax is collected by the Federal Board of Revenue and is imposed on taxable income under five heads: salary, property income, business income, capital gains, and other income. It outlines the types of income taxed under each head such as wages, rents, profits, capital asset sales proceeds. The document also mentions that the purpose of taxation is to finance government expenditures like defense, welfare, and development projects. It provides an overview of Pakistan's income tax law and the bodies responsible for taxation.