Pakistani tax system is designed that no one can avoid taxes, than where did you get your figures?
People of Pakistan pay taxes, when they buy house, land, deposit money or withdraw it, buy bread or water, drive or fly, even when you go to toilet you pay tax in Pakistan.
In past i have made open request... to guide me to a state which charge more tax than Pakistan.. but no one came forward, but never quit misleading the people as well.
i have no idea where you got this information from but i can say its all false.
Only 3% of pakistan population pays tax.
Almost every country on this mother earth pays more tax than pakistan.
VAT or what you call paying tax on bread is not same as paying tax on your earnings. Global system works on taxation.
Roads, Hospitals Schools everything runs on tax.
if everyone in Pakistan paid tax, the treasury would be the richest in the world....