Obtaining a TRN number UAE is a mandatory step for businesses exceeding the VAT registration threshold or voluntarily registering for VAT. The application process involves submitting relevant documents to the FTA and meeting specific criteria. Once approved, businesses are assigned a unique TRN that must be included on all tax-related documents. https://avyanco.com/auditing/how-to-apply-for-a-trn-number-in-uae/