1️⃣ If your business has been closed, you must apply for cancellation of Sales Tax Registration with FBR through the IRIS portal.
2️⃣ Log in to IRIS, go to “e-Registration” → “De-Registration/Cancellation” and select Sales Tax .
3️⃣ Provide the reason for closure, attach supporting documents (e.g., business closure proof, last utility bills, etc.).
4️⃣ FBR may conduct verification before approving cancellation.