Pakistan's Current Taxation system is defined by Income Tax Ordinance 2001, promulgated on 13 September 2001, which became effective from 1 July 2002.
Taxation in Pakistan Wikipedia
Income Tax Act of 1929: prevalent in the British Raj and was adopted by the Government of India as its Income Tax Law.
The Income Tax Ordinance was the first law on Income Tax which was promulgated in Pakistan from 1 July 1979 by Government of Pakistan.
To update the tax laws and bring country's law in accordance with international standards, Income Tax Ordinance 2001 was promulgated on 13 September 2001, which became effective from 1 July 2002.
IT rules 2002 were promulgated by FBR on 1 July 2002 in exercise of powers granted under section 237 of the Ordinance.
Taxation in Pakistan is a complex system of more than 70 unique taxes administered by at least 37 agencies of the Government of Pakistan.
According to the International Development Committee, Pakistan had a lower-than-average tax take. Only 0.57% of Pakistanis, or 768,000 people out of a population of 190 million pay income tax.
Federal taxes are administered by the Federal Board of Revenue.
According to a 2002 study, 99% of 256 respondents reported facing corruption with regard to taxation. Furthermore, 32% of respondents reported paying bribes to have their tax assessment lowered, and nearly 14% reported receiving fictitious tax assessments until a bribe was paid.