Deregistration of Person in FBR or Iris, if to deregister a person shall submit an application to Commissioner Inland Revenue having appropriate jurisdiction. Within ninety days from the date of such application or the date all the dues outstanding against such person are deposited by the person, whichever is later shall cause the person to be de-registered through the computerized system.

Following persons can be deregistered:
1. Who ceases to carry on the business, or
2. Whose supplies become exempt from Sales Tax, or whose turnover becomes less than the threshold level can apply for cancellation of the registration.