What is a Tax Registration Number (TRN)?
The Tax Registration Number (TRN) is a special number for individuals who are registered for value-added tax (VAT) in the UAE by the Federal Tax Authority. It is a 15-digit identification number from which the federal tax authority will be able to differentiate businesses. The organization to which the number issued is called “Registrant”. Therefore, every organization should always mention this number in tax invoices, VAT returns, tax credits, etc.
The issued number gets automatically sent to you after the VAT registration application is approved. Thus, the companies or traders having a TRN certificate are allowed to charge VAT to their customers. TRN utilizes the government to track all the transactions made by individuals or businesses.
Please read the originial post here: https://www.rizmona.com/blog/everything-you-need-to-know-about-trn/