Written by Hamza Shahnawaz in Taxation Tax authority urges individuals, companies and AOPs to complete IRIS e-enrolment before filing annual income tax returns ISLAMABAD: The Federal Board of Revenue (FBR) on Monday issued fresh guidelines on taxpayer registration as the filing of Income Tax Returns for Tax Year 2026 officially commenced across Pakistan. The FBR urged individuals, companies, associations of persons (AOPs) and foreign nationals to complete their registration through its online system before submitting their annual income tax returns. E-enrolment mandatory for taxpayer registration According to the FBR, an individual, company, association of persons (AOP) or foreign national becomes a registered taxpayer after successfully completing e-enrolment on the IRIS portal. The tax authority said the e-enrolment process provides taxpayers with a National Tax Number (NTN) or Registration Number, along with login credentials required to access the online tax filing system. For individual taxpayers, the 13-digit Computerised National Identity Card (CNIC) serves as the National Tax Number (NTN) or Registration Number. For companies and associations of persons, the seven-digit NTN issued after successful e-enrolment functions as their official Registration Number. IRIS portal…