Obtain an NTN Number(National Tax Number) as this number is required to become a filer in Pakistan. NTN number can be obtained by visiting your legal adviser or by visiting FBR website and making a request. For this purpose, go to the site and then go to the Registration for Unregistered Person tab. Fill the form as it is a simple form. After filling it, it will generate your NTN number.NTN number takes a few hours and you will get a unique NTN number at your disposal but now the government is working on converting your National CNIC as your NTN number.IRIS Registration. Go to the federal board of the Revenue website and then go to the IRIS tab. Register yourself to e-enrollment.
please visit: https://www.filer.pk/