What this check actually tells you
Under UAE e-invoicing, invoices travel as structured data between businesses through accredited service providers, rather than as PDFs sent by email. Each participating business has an address on that network, built from the code 0235 and its 10-digit TIN — the first ten digits of its 15-digit TRN.
This check looks up that address in the public network directory and reports whether the business is registered to receive UAE electronic invoices.
Two limits are worth stating plainly.
Being listed is voluntary. Service providers register their customers in the directory, and not all of them do, so "not listed" is weaker evidence than "listed".
And a positive result describes the recipient, not you. It tells you they can receive a UAE e-invoice — not that you can send one.
What to do with the answer
If the business is connected, nothing changes for you today. You carry on invoicing as you do now. It becomes relevant when your own phase of the mandate begins.
If it is not listed, that is the normal position for most UAE businesses right now, and it is not something you need to raise with them.
For your own business, the step that matters is appointing an accredited service provider before your deadline. That is what puts you on the network, and it is done through the EmaraTax portal rather than on a provider's website.
Fatura Go does not transmit invoices to the tax authority today. This tool reads the public directory so you can see where a business stands.
Step 1 — the format
A UAE TRN is exactly 15 digits and begins with 100. No letters, no spaces, no dashes. Businesses often write it with spaces to make it readable, but the number itself is 15 unbroken digits, and that is how it should be stored.
If the number fails this check, stop here. There is no point looking it up — it cannot be a valid TRN, and the supplier has either mistyped it or invented it.
Step 2 — the FTA lookup
The Federal Tax Authority runs a free public lookup. There is no login, no UAE Pass account and no fee — it asks for the 15-digit number and a security code, and returns the legal name registered against it.
Use the button above to open it with your number copied, ready to paste.
The portal shows the legal name only. It does not show trade licence details or contact information.
What the result means
The portal returns a legal name. Compare it with the supplier name on the invoice, character for character, including the company form — "LLC" against "L.L.C." is exactly the kind of difference people skim past.
A matching name means the number is registered and the supplier is entitled to charge VAT.
A different name is not automatically fraud. A business may trade under one name and be registered under another. But it is unverified until the supplier explains the difference, and you should treat it that way.
"TRN does not exist in the system" means the number is not registered, or the registration has ended. Deregistered numbers are removed from the lookup, so a supplier who was registered last year may not be today.
Finding a TRN when you do not have the number
There is no public directory that turns a company name into a TRN. The Federal Tax Authority lookup works in one direction only: you give it the number, it returns the registered name. Searching for a business by name will not produce its TRN.
So when you need a supplier's TRN and do not have it, the routes are practical rather than technical.
Any tax invoice they have issued you carries it — it is a mandatory field, so an older invoice is the fastest place to look. Their trade licence documents carry it. Many UAE businesses publish it in a website footer, on quotations, or on purchase orders. And asking them directly is neither unusual nor awkward: a registered business expects to be asked, and one that hesitates has told you something.
If a supplier charges VAT but will not produce a TRN, treat that as unresolved rather than settled. You cannot reclaim input VAT against an invoice without a valid supplier TRN.
Checking whether a TRN is still active
A number can be genuine and no longer current. Registrations end — a business deregisters when it falls below the threshold, restructures, or closes.
Deregistered numbers are removed from the FTA lookup, so a number that returns "does not exist in the system" may be one that was valid last year. The lookup tells you the position today, not the position when the invoice was issued.
This matters for long-standing suppliers more than new ones. A TRN you verified two years ago and have not checked since is worth re-checking before a large payment or at year end, particularly if anything about the relationship has changed.
What to do when a TRN fails
Do not pay the VAT portion. Ask the supplier to reissue the invoice with a correct TRN, or to reissue it at the net amount if they are not registered.
The cost of getting this wrong falls on you, not on them. Input VAT claimed against an invalid TRN is disallowed at audit, and it is not refunded later — it simply becomes a cost.
Keep the evidence
Save what the lookup returned, dated, alongside the invoice. At an audit, "we checked" carries no weight without the record of what the check showed.
This matters more under e-invoicing than it does today: the buyer carries responsibility for confirming a supplier's TRN before claiming input tax on the transaction.