A TRN number check of a firm is mainly used to confirm the validity of VAT registration. If you intend to find out whether a business entity has a Tax Registration Number in the UAE, all that you need to do is search for the services of a tax representative in the UAE. A tax agent can help you in finding whether a business entity that you are about to deal with has a TRN number or not. With help from a tax agent, you’ll be in a good position to know whether to commence business with your potential firm or not.