The Pakistan Tax Bar Association (PTBA) has called on the Federal Board of Revenue (FBR) to immediately restore the “Change in Particulars” facility, also known as Form 181, on the IRIS portal for sales tax registered persons. In a letter sent to Member Inland Revenue (Operations) Zubair Bilal, the PTBA highlighted the problems caused by the unavailability of Form 181. PTBA Urges FBR to Restore Form 181 Facility on IRIS PortalForm 181 is an important feature of the IRIS system because it allows registered taxpayers to make changes to their business details whenever necessary. The PTBA urged the FBR to restore the Form 181 facility as soon as possible. It emphasized that restoring Form 181 would support smooth business operations, reduce compliance-related difficulties, and help taxpayers maintain accurate records.