TRN verification: checking a UAE Tax Registration Number

There is one authoritative TRN check in the UAE and the Federal Tax Authority runs it. It is not a separate page with its own address: as at 12 August 2026 it opens as a dialogue from the FTA homepage at tax.gov.ae, listed as TRN verification among the other links in the quick-links strip. We are stating that plainly because it is the reason so many third-party "TRN checkers" exist — there is no clean URL to link people to, so intermediaries fill the gap, and several of them do not check anything at all.

The FTA's dialogue asks for two things: the Tax Registration Number and the characters shown in a security image. It then returns the legal name registered against that number, in English and Arabic. That is the whole of the result, and it is enough: you are matching a number on an invoice to the name of the entity that issued it.

The tool below does not verify anything, and it is built so that it cannot appear to. It tidies what you have typed — strips the spaces, dashes and full stops people paste out of PDFs — and counts the characters, so you can copy a clean string into the FTA's box. Both of those are facts about a string. Neither is a judgement about a taxpayer.

Federal Decree-Law No. 28 of 2022 defines a Tax Registration Number, in Article 1, as "a unique number issued by the Authority to each Person who is registered for Tax purposes". That is the entire published definition. It fixes no length, no prefix, no structure and no check digit. The same article defines a Registrant as "the Taxable Person who has been issued a Tax Registration Number", which is the only status a number confers.

This matters because a large part of the search demand around TRNs is for a format — how many digits, what a sample looks like, whether a given string is the right shape. We will not answer those questions, and the reason is not caution for its own sake. If we published a digit count inferred from the numbers we happen to have seen, every tool built on it would return "valid" for any string of that length, including one a fraudulent supplier invented. A false negative wastes a phone call. A false positive tells you to accept an invoice and recover input tax you are not entitled to.

So the honest position is the narrow one: the number's shape proves nothing, the Authority's register is the only evidence, and a checker that does not query that register is decoration.

The service returns a legal name. Read it as an answer to one question — is this number registered, and to whom — and not to any of the others you may be carrying.

It does not confirm that the entity on the invoice is the entity that supplied you, if those differ. It does not confirm the registration was in force on the date of an older invoice; it reports the position at the moment you ask. It does not tell you which tax the person is registered for, and it is not a statement about their compliance, their filing history or their standing with the Authority.

What it does prove is the thing most commonly faked: that a number printed next to the words "Tax Invoice" belongs to a real registrant, and that the registrant is who the invoice says it is. If the name comes back different from the supplier's name, stop and resolve that before paying — a mismatch is far more often a group-company or trade-name issue than a fraud, but it is always worth a written answer from the supplier.

Verification is worth the two minutes in a narrow set of situations, and is wasted effort outside them.

Check when you are about to recover input tax on a substantial invoice from a supplier you have not dealt with before. Check when an invoice appears to charge VAT but does not carry the words "Tax Invoice", or omits the supplier's TRN — Article 59(1) of the Executive Regulation requires the words, the supplier's name, address and TRN, the customer's TRN where the customer is registered, a sequential number, the dates, a description, the unit price and quantity, the rate, any discount, the gross and the tax in AED. A document missing those particulars is not a tax invoice, whatever it is headed.

Check when a supplier who previously invoiced without VAT suddenly starts charging it, or the reverse. And check when the TRN on the invoice differs from the one on the contract or the last statement.

A simplified tax invoice is a narrower document and needs only five particulars — the words "Tax Invoice", the supplier's name, address and TRN, the date, a description, and the total consideration with the tax charged. It is permitted where the customer is not registered, or where the customer is registered and the consideration does not exceed AED 10,000. The supplier's TRN is required on both kinds, so its absence is always a flag.

Nothing here is an accusation. The great majority of failed checks are transcription errors, group entities, or a number copied from an old letterhead.