Transacting with an unregistered or deregistered entity can trigger FTA penalties and disallow your entire VAT recovery on that invoice. For a single large purchase, that could mean tens of thousands of dirhams lost. This guide has been refreshed for 2026 to reflect EmaraTax, the Federal Tax Authority’s current verification channels, and the VAT law amendments that took effect on 1 January 2026 under Federal Decree-Law No. 16 of 2025.
Key Takeaways
- Verify every supplier TRN on EmaraTax before payment. The 15-digit TRN check is free, public, and takes under a minute at eservices.tax.gov.ae or through the official UAE Tax mobile app.
- Know your result states. Active or valid means safe to transact. Deregistered, cancelled, or inactive means stop and ask questions. No results found or a name mismatch both need follow-up before you pay.
- Your own TRN lives on your VAT registration certificate (Tax Registration Certificate). Download it anytime from EmaraTax under My Accounts > Certificates.
- Never pay the VAT portion of an invoice with no valid TRN. Hold payment, ask for a corrected invoice, and report unregistered suppliers to the FTA if needed.
- Reverse charge and designated zone transactions follow different TRN rules. Self-invoicing was removed from 1 January 2026, so keep supplier invoices, contracts, and customs paperwork instead as your audit evidence.
- Document every check. Dated screenshots, a verification log, and a supplier onboarding checklist are now part of your defense against the FTA’s expanded anti-evasion powers under Federal Decree-Law No. 16 of 2025.
- Scale it with a workflow, not one-off searches. Verify at onboarding, keep a central TRN register, and re-check high-value suppliers on a regular schedule rather than searching from scratch each time.
What Is a TRN (Tax Registration Number) in the UAE?
A Tax Registration Number (TRN) is a unique 15-digit identifier issued by the Federal Tax Authority (FTA) to every business or individual that registers for VAT, corporate tax, or excise tax in the UAE. It is the primary reference number for all UAE tax matters, and it appears on the VAT registration certificate (also called the Tax Registration Certificate) the FTA issues on approval.
A common mistake among new business owners: confusing the TRN with a trade licence number or commercial registration number. These are entirely different identifiers. Your trade licence is issued by the Department of Economic Development or a free zone authority. Your TRN comes from the FTA.
The TRN format is consistent. It is always 15 digits, starts with “100”, and contains no letters or special characters.
Since the introduction of UAE corporate tax in June 2023, the TRN landscape has expanded. Businesses now receive TRNs for corporate tax registration as well. A single entity typically holds one TRN that covers both VAT registration and corporate tax, though the registration status may differ per tax type.
| Attribute | Detail |
| Issued by | Federal Tax Authority (FTA), via EmaraTax |
| Length | 15 digits |
| Starts with | 100 |
| Applies to | VAT, Corporate Tax, Excise Tax |
| Shown on | VAT registration certificate / Tax Registration Certificate, tax invoices |
| NOT the same as | Trade Licence Number, Commercial Registration |
Tip: if someone gives you a TRN that is shorter than 15 digits or contains letters, it is not a valid UAE TRN.
Why TRN Verification Matters for UAE Businesses
TRN verification isn’t optional housekeeping. It directly protects your money, your compliance record, and your business relationships. Four core reasons:
1. VAT compliance: Businesses can only claim input VAT on invoices from legitimately VAT-registered suppliers. If a supplier’s TRN is invalid or deregistered, the FTA will disallow your input VAT claim during an audit. For companies processing significant purchase volumes, the disallowed amounts add up fast.
2. Fraud prevention: Fake TRNs on invoices are a documented issue in the UAE market. Verifying every supplier TRN before processing payment is basic due diligence. It protects your business from fraudulent transactions and ensures you’re dealing with a real, registered entity.
3. Avoiding FTA penalties: The FTA imposes administrative penalties under Cabinet Decision No. 49 of 2021 (amending Cabinet Decision No. 40 of 2017) for non-compliance. Penalties for tax invoice errors can reach AED 5,000 per invoice for the first offence and AED 10,000 for repeats. Other VAT-related violations carry their own specific amounts under the published schedule, most ranging from a few hundred dirhams up to AED 50,000 per article breached, depending on the violation type and frequency.
4. Supplier due diligence under the 2026 anti-evasion rules: Federal Decree-Law No. 16 of 2025, effective 1 January 2026, added Article 54 bis to the VAT Law. It allows the FTA to deny input tax recovery where a supply is part of an evasion chain and the taxpayer knew, or should have known, about it. Documented TRN verification is now part of the evidence that shows you exercised reasonable care.
Staying updated with the latest FTA regulations is essential to avoid administrative fines and VAT-related penalties. Read our related guide on FTA updates and how to avoid tax penalties in the UAE.
Businesses using reliable accounting systems can automate supplier validation and reduce VAT-compliance risks. Explore our guide on FTA-approved accounting software solutions in Dubai to improve your VAT and bookkeeping workflows.
A real anonymised mini-case
Last quarter we ran a TRN sweep on a Jebel Ali trading client’s vendor list (about 80 suppliers) and found two TRNs that had been deregistered mid-year. The client had reclaimed AED 18,200 of input VAT on invoices issued after deregistration. Catching this in the next return saved the same amount in disallowed credit and avoided AED 5,000 in invoice-error penalties. This is why we build TRN verification into every client’s monthly compliance workflow, catching issues before they become penalties.
How to Verify TRN on EmaraTax (Step-by-Step)
EmaraTax is the FTA’s unified digital tax platform, launched in 2023 as the successor to the original e-Services portal. It hosts VAT and corporate tax registration, return filing, payments, certificates, and the public TRN verification tool. The shortcut: go to https://eservices.tax.gov.ae, find the TRN Verification tile, enter the 15-digit TRN, complete the CAPTCHA, and click validate. No EmaraTax account or login is required for a basic TRN check.
- Go to the EmaraTax public verification page: Open https://eservices.tax.gov.ae in your browser. The TRN Verification tile sits alongside the e-services login on the public services row, so you do not need an account to use it. The page is available in both English and Arabic; use the language toggle in the top-right corner.
- Enter the TRN in the search field: Type or paste the 15-digit TRN with no spaces, dashes, or prefixes. If you’re copying from a PDF invoice, be careful: PDFs sometimes embed hidden characters or extra spaces that break the search. If copy-paste doesn’t return results, type the digits manually.
- Complete the CAPTCHA or security code: EmaraTax requires you to complete a CAPTCHA or security code before the search will run. This is a standard anti-bot check, not an error.
- Click “Validate” or “Search”: The portal returns the registrant’s legal name, TRN, and registration status.
- Review and record the result”: Compare the legal name shown against the name on the invoice or trade licence and note the status (see the results table below). For any new or high-value supplier, keep a dated screenshot of the result for your records.
Verifying TRN through the mobile app
The FTA also offers TRN verification through its official “UAE Tax” mobile app, available on the Apple App Store and Google Play Store. Open the app, navigate to TRN Verification, and search using the same 15-digit number. No login is needed, and the result mirrors what you would see on EmaraTax. Mobile app verification is useful for on-the-spot checks, for example during a supplier site visit or when reviewing an invoice away from your desk.
How to verify a TRN by company name
Sometimes you have a supplier’s company name but not their TRN. EmaraTax’s verification tool supports this too. On the same verification page, switch the search type from “TRN” to “Name” using the dropdown or toggle, and enter the company name exactly as it appears on the trade licence, not a shortened or trading name.
The name must match the FTA registration closely. Partial matches may not return results. If your first search fails, try variations: “ABC Trading LLC” vs. “ABC Trading L.L.C.” vs. the full legal name.
How to Find Your Own TRN on the VAT Registration Certificate
If you need to locate your own business’s TRN rather than a supplier’s, check these sources, from most to least authoritative:
| Source | Where to look |
| EmaraTax dashboard | Log in and check the taxable-person summary card. This is the canonical source; if any other document conflicts with it, EmaraTax wins. |
| VAT registration certificate / Tax Registration Certificate | Log in to EmaraTax, go to My Accounts (or Taxable Person) > Certificates, and download the PDF. The TRN sits at the top, alongside the legal name, effective date, and tax period. |
| Trade licence | Most DED and free zone licence renewals issued after 2018 print the TRN under “Tax Information” or “FTA Registration.” Look for a 15-digit string starting with 100. |
| Tax invoices you issue | Your TRN is a mandatory field on every tax invoice your business issues. |
Lost your VAT registration certificate? Log in to EmaraTax, go to My Accounts > Certificates, and download a fresh copy at any time.
How to Interpret TRN Verification Results
EmaraTax returns one of a few standard result states. Here’s how to read each one:
| Result | What it means | What to do |
| Active / Valid | Entity is VAT and/or corporate tax registered and in good standing | Safe to transact; retain a dated screenshot for your records |
| Deregistered / Cancelled / Inactive | The entity was registered but is no longer active for that tax type | Do not accept VAT invoices dated after the deregistration date; contact the supplier |
| No results found / Invalid | The TRN does not exist in the FTA system, or was entered incorrectly | Do not transact; request a valid TRN or report the case to the FTA |
| Name mismatch | The TRN is valid, but the name returned does not match the invoice | Pause payment; verify against the trade licence before proceeding |
Understanding a name mismatch result
A name mismatch is one of the most common causes of confusion, and it doesn’t necessarily mean the TRN is fake. The FTA records the registrant’s full legal entity name, exactly as shown on the trade licence, not the trading name or brand name a company uses publicly. “ABC Trading LLC” might trade publicly as “ABC Store.” Before treating a mismatch as a red flag, check the legal name printed on the supplier’s trade licence. If the legal names still don’t align after that check, pause payment and ask the supplier to reconcile the discrepancy before you process the invoice.
TRN for VAT vs. Corporate Tax vs. Excise Tax: What’s the Difference?
The UAE tax landscape has expanded significantly since corporate tax took effect in June 2023, with full filing cycles now underway. Previously, TRN was associated almost exclusively with VAT. Now, businesses may hold TRN registrations for multiple tax types.
- VAT: Mandatory for businesses exceeding AED 375,000 in taxable supplies. Voluntary registration threshold: AED 187,500. Rate: 5%.
- Corporate tax: Mandatory for UAE-incorporated companies, free zone entities, and other taxable persons. Rate: 9% on taxable income above AED 375,000, and 0% on income up to that threshold.
- Excise tax: Applicable to businesses dealing in excise goods, such as tobacco, carbonated drinks, energy drinks, and sweetened drinks. Rates range from 50% to 100% depending on the product.
| Tax type | Mandatory threshold | Rate | TRN required? |
| VAT | AED 375,000 taxable supplies | 5% | Yes |
| Corporate Tax | All taxable persons | 9% (above AED 375,000 income) | Yes |
| Excise Tax | Excise goods importers/producers | 50% to 100% by product | Yes |
As of 2026, the FTA issues one TRN per entity. However, the registration status may differ per tax type. A company might be VAT-registered but not yet corporate-tax-registered. When running TRN verification, check the specific tax registration type, not just whether the TRN exists.
TRN on Invoices: Where to Find It and What to Check
UAE tax law (Federal Decree-Law No. 8 of 2017 on VAT, as amended by Federal Decree-Law No. 16 of 2025) requires every tax invoice to include the supplier’s TRN. It typically appears in the invoice header or footer, near the company name and address.
Mandatory elements of a valid UAE tax invoice that relate to TRN:
- Supplier’s TRN
- Buyer’s TRN (if the buyer is VAT-registered)
- The words “Tax Invoice” clearly stated
- Invoice date and sequential invoice number
- Description of goods or services, quantity, and unit price
- VAT amount and total
If a TRN is missing from an invoice, request a corrected invoice. You cannot claim input VAT without a valid tax invoice showing the supplier’s TRN. If the TRN on the invoice doesn’t match the EmaraTax verification result, contact the supplier immediately and do not process the invoice.
Before processing any supplier invoice, verify:
- TRN is present
- TRN is 15 digits and starts with 100
- TRN matches the EmaraTax verification result
- Supplier legal name matches the FTA record
- Invoice is dated within the supplier’s active registration period
What to Do If a Supplier Charged VAT Without a Valid TRN
This situation comes up more often than businesses expect, especially with smaller or newer suppliers. Take these steps immediately:
- Hold the VAT portion of payment:Do not pay the VAT element until the supplier provides a valid TRN and reissues a compliant tax invoice.
- Verify the supplier’s registration separately. Check EmaraTax using the supplier’s name. They may have simply omitted or mistyped the TRN on the invoice while still being validly registered.
- Request a corrected invoice. Ask for a reissued tax invoice with the full 15-digit TRN clearly stated.
- Report unregistered suppliers. If the supplier turns out not to be VAT-registered at all, they should not have charged VAT in the first place. Report the case through the FTA’s complaint channel (covered below).
- Do not claim input tax on the disputed invoice. Claiming input VAT on an invoice without a valid supplier TRN puts your business at risk of disallowance and penalties if the FTA reviews the return.
TRN Verification in Free Zones and Designated Zones
Free zone companies are ordinary VAT and corporate tax registrants. Their TRNs are verified on EmaraTax exactly the same way as a mainland company’s TRN, and the same result states (active, deregistered, no results found) apply.
Designated zones are a narrower category: specific FTA-listed free zones (such as Jebel Ali Free Zone, Dubai Airport Free Zone, and a defined list of others) that are treated as outside the UAE for VAT purposes on the supply of goods, subject to conditions set out in the Executive Regulations. Two practical points matter for verification:
- The TRN check itself doesn’t change. A designated zone entity still holds a normal 15-digit TRN, verified through EmaraTax in the usual way.
- The VAT treatment on the invoice can differ. Supplies of goods within or between designated zones, and certain movements involving them, can be treated as out of scope of VAT, while services are generally taxed as normal. When goods move out of a designated zone into UAE mainland, the mainland recipient typically treats the movement as an import and accounts for VAT under the reverse charge mechanism rather than paying VAT to the supplier.
Because free zone and designated zone VAT treatment depends on the specific goods, parties, and movement involved, confirm the correct treatment with a qualified advisor before assuming a transaction is out of scope, even where the supplier’s TRN checks out as active.
Reverse Charge Cases Where TRN Requirements Differ
The reverse charge mechanism (RCM), under Article 48 of the VAT Law, shifts the responsibility for accounting for VAT from the supplier to the UAE-registered buyer. Instead of the seller charging VAT and remitting it, the buyer self-accounts for VAT as both output tax and input tax on their own VAT return. RCM commonly applies to:
- Imports of goods and services from suppliers outside the UAE
- Purchases of goods from businesses based in designated zones, once those goods move into the mainland
- Specified domestic B2B supplies, including mobile phones, computers, tablets and parts (since 30 October 2023), and gold, silver, platinum, palladium and a defined list of precious stones (since 26 February 2025, under Cabinet Decision No. 127 of 2024)
- Supplies of hydrocarbons and crude or refined oil for resale between registered businesses
TRN requirements differ from a standard supply in a few important ways:
- The buyer must be VAT-registered. Domestic RCM only applies where the recipient holds a valid TRN and is buying for resale or manufacturing purposes. If the buyer cannot provide a valid TRN, the supplier should charge standard VAT instead of applying reverse charge treatment.
- Self-invoicing was removed from 1 January 2026. Under Federal Decree-Law No. 16 of 2025, businesses are no longer required to issue a formal self-invoice for reverse-charge imports. Instead, they must retain adequate supporting documentation, such as the supplier’s original commercial invoice, contracts or service agreements, and customs declarations linked to their TRN, as evidence for the FTA.
- Import VAT often pre-populates from customs data. For imported goods, import VAT is generally linked to the importer’s TRN at customs and can appear pre-filled on the EmaraTax VAT return. Imported services have no equivalent checkpoint, so the recipient must manually self-account for the VAT on the return.
How to Handle Newly Registered Businesses Not Appearing Yet
There is typically a delay of 24 to 48 hours between FTA approval of a VAT or corporate tax registration and the TRN appearing in the public EmaraTax verification tool. If you have just onboarded a newly registered supplier and their TRN search returns no results, this delay is the most likely explanation, not necessarily an invalid registration.
- Ask the supplier for a copy of their VAT registration certificate or approval email as interim evidence of registration.
- Wait 24 to 48 hours and re-check EmaraTax.
- If the TRN still doesn’t appear after 48 hours, contact the FTA directly to confirm the registration status before processing a large payment.
- Once the TRN appears, run the verification again and save the result for your records.
How to Document TRN Verification for Audit Défense
Since Federal Decree-Law No. 16 of 2025 gave the FTA power to deny input tax recovery on transactions linked to tax evasion where the taxpayer “should have known,” documented TRN checks have shifted from good practice to a genuine audit defense. Build these habits into your accounts payable process:
- Keep verification screenshots. For every new supplier, and periodically for existing high-value suppliers, save a dated screenshot of the EmaraTax verification result. Store it in the accounts payable folder alongside the invoice.
- Maintain an audit trail or verification log. A simple spreadsheet or an ERP custom field works: record the date checked, the TRN, the result, and who checked it. This log is what you hand an auditor when asked to demonstrate due diligence.
- Use a supplier onboarding checklist. Before releasing the first payment to any new supplier, require: a valid 15-digit TRN, a copy of their VAT registration certificate, and a saved verification screenshot showing an active status.
- Re-verify periodically, not just once. A supplier can be deregistered at any point after your first check. Build a periodic re-check into your monthly or quarterly compliance routine, especially for recurring suppliers.
Bulk or Recurring Supplier TRN Verification Workflows
Checking TRNs one at a time through the EmaraTax portal works for occasional checks, but it doesn’t scale once a business has dozens or hundreds of active suppliers. A practical bulk or recurring verification workflow looks like this:
- Verify once at onboarding. Every new supplier gets a TRN check and a saved screenshot before their first invoice is paid.
- Maintain a central supplier TRN register. A single spreadsheet or ERP vendor master list with each supplier’s name, TRN, last verification date, and result, rather than re-searching from scratch each time.
- Batch re-checks on a schedule. Rather than checking every supplier every month, prioritise high-value or high-risk suppliers for a quarterly re-check, and run a full sweep of the vendor list annually or whenever your accounting team notices a discrepancy.
- Use accounting software with built-in TRN validation. A number of UAE accounting and ERP platforms now include TRN validation as part of vendor master data setup or invoice import, which flags an invalid or mismatched TRN automatically rather than relying on manual checks.
- Flag mismatches automatically where possible. If an incoming invoice shows a TRN different from the one on file for that supplier, treat it as a trigger for manual review before payment, not routine processing.
Our own Jebel Ali vendor sweep, covering roughly 80 suppliers in a single pass, is a working example of this kind of periodic bulk check catching a deregistration before it turned into a disallowed input VAT claim.
How to Report Fake or Suspicious TRNs to the FTA
If you believe a supplier is using a fake, invalid, or fraudulently reused TRN, or repeatedly failing to provide a valid one, this should be reported rather than quietly written off. The FTA provides more than one reporting channel:
- Online complaint form. Submit a complaint through the FTA’s official channel on tax.gov.ae or via EmaraTax.
- Email. Contact the FTA at taxpayerservices@tax.gov.ae.
- Phone. Call the FTA helpline on 600 599 994.
When reporting, keep copies of the disputed invoice, your EmaraTax verification screenshots, and any correspondence with the supplier as evidence. Do not process payment or claim input tax on the disputed invoice while the matter is unresolved.
Common TRN Verification Errors and How to Fix Them
The EmaraTax portal is straightforward, but real-world issues come up regularly. Here are the most common problems and their fixes:
| Problem | Likely cause | Fix |
| “No results found” for a TRN you believe is valid | Typo, pending registration, or wrong tax type | Double-check the number digit by digit; contact the supplier for confirmation |
| TRN shows “Deregistered” or “Inactive” | Entity voluntarily or compulsorily deregistered | Do not accept tax invoices dated after deregistration; request updated documentation |
| Name mismatch between the invoice and the FTA result | FTA records the legal entity name, not the trading name | Verify using the trade licence; the legal name and brand name often differ |
| CAPTCHA or security code not loading | Browser cache issue or ad-blocker interference | Clear the browser cache, disable extensions, or try a different browser |
| Portal timeout or technical errors | EmaraTax downtime or slow loading | Try again later; the portal generally performs best on Chrome |
| Copy-paste errors | Hidden characters from PDFs or Excel files corrupt the TRN | Type the 15 digits manually instead of pasting |
| Newly registered business not appearing | 24 to 48 hour delay between FTA approval and public system update | Wait and re-check; if still missing after 48 hours, contact the FTA |
The copy-paste issue is more common than you’d expect. PDF invoices frequently embed invisible formatting characters that break the EmaraTax search. Always try manual entry if paste doesn’t work.
Frequently Asked Questions
How can I verify my TRN number in the UAE?
Go to EmaraTax at https://eservices.tax.gov.ae. No login is required. Enter the 15-digit TRN in the search field, complete the CAPTCHA, and click Search or Validate. The portal returns the registrant’s name and registration status. You can also search by company name using the name toggle on the same page, or use the official UAE Tax mobile app.
Where can I see my VAT TRN?
Your VAT TRN appears on your VAT registration certificate (Tax Registration Certificate), downloadable from EmaraTax under My Accounts > Certificates. It starts with 100 and runs 15 digits, unlike your trade licence number, which is generally shorter. The corporate tax registration number is a separate matter and should not be confused with your VAT TRN.
What is a TRN number in the UAE?
A TRN is a 15-digit Tax Registration Number issued by the FTA to businesses registered for VAT, corporate tax, or excise tax. It always starts with “100” and contains only digits. It is required on all UAE tax invoices and is not the same as a trade licence number.
Can I verify a TRN by company name instead of the number?
Yes. EmaraTax allows searching by the registered entity’s legal name. Use the exact legal name from the company’s trade licence; partial or trading names may not return results. If the first search fails, try variations such as “LLC” vs. “L.L.C.” vs. the full legal name.
What does it mean if a TRN shows “deregistered” or “inactive”?
It means the entity was previously registered but has since cancelled its tax registration, either voluntarily or through FTA action. Invoices dated after the deregistration date should not carry that TRN, and you cannot claim input VAT on such invoices. Contact the supplier for updated documentation.
What should I do if a supplier charges VAT without quoting a TRN?
Hold the VAT portion of payment, verify the supplier’s registration separately by name, and request a corrected invoice showing a valid 15-digit TRN. If the supplier turns out to be unregistered, report it to the FTA and do not claim input tax on that invoice.
How long does it take for a new TRN to appear in the FTA system?
There is typically a delay of 24 to 48 hours between FTA approval of a tax registration and the TRN appearing in the public EmaraTax verification tool. If it still doesn’t appear after 48 hours, contact the FTA at 600 599 994 or email taxpayerservices@tax.gov.ae.
Does TRN verification work differently for free zone or designated zone suppliers?
The TRN check itself is identical: every free zone and designated zone entity holds a normal 15-digit TRN verified through EmaraTax the same way. What can differ is the VAT treatment on the invoice, since certain goods movements involving designated zones may be out of scope of VAT or subject to reverse charge when the goods move into the mainland.
How do I report a fake or suspicious TRN?
Report it through the FTA’s online complaint channel on tax.gov.ae, by email at taxpayerservices@tax.gov.ae, or by phone on 600 599 994. Keep copies of the invoice, your verification screenshots, and supplier correspondence as evidence, and avoid processing payment on the disputed invoice in the meantime.
Reach out to us at info@bcl.ae







