The top one percent of high-income individuals, which number around 670,000, have estimated income tax liabilities of Rs 1.7 trillion but contribute a mere Rs 500 billion to the national exchequer, Rashid Mehmood Langrial, chairman of the Federal Board of Revenue (FBR) revealed on Saturday. The taxation system is skewed towards helping the top five percent of high-income earners underreport their income and evade taxes.  

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