TRN Deregistrationtaxexpert2022-12-22T06:53:14+00:00 TRN Deregistration VAT / TRN deregistration allows a registrant to cancel his VAT (value added tax) registration or TRN (Tax registration number) in federal tax authority.To know more Click here, please feel free to contact us at +971 600 57 5550 or email us at Taxsupport@skylines.ae for assistance. (Monday to Friday 9:00 am to 6:00 pm).