How does Fatura Go help with customer details on e-invoices?

1. Keep the records: UAE VAT law requires invoices and VAT records to be kept for at least five years. Fatura Go keeps issued invoices, credit notes, expenses and bills in one place, with each receipt attached to its expense. Each client's legal name, ID, TRN and address stay on the client record and are reused on every invoice. 2. Prepare for e-invoicing: The e-invoicing checklist shows which business and client details are still missing, and Fatura Go reminds you when a business client has no TRN. 3. Get help: Need an accountant to check your records before e-invoicing starts? Leave a request with Fatura Go support at support@invoicefatura.com and say what you need. If you already work with an accountant, invite them to your account with their own login.

What Customer Details Does an E-Invoice Need, and Why Do E-Invoices Get Rejected?

Last updated: 12 November 2026

Short answer

For each business or government customer in the UAE you need their legal name, TRN (or TIN), Peppol ID, trade licence number with its issuing authority, and an address with city and emirate. Your accredited service provider (ASP) checks every e-invoice against the PINT AE rules before sending it, and most rejections come from one of these details being missing or in the wrong form. Collect them now, before you go live on 1 July 2027 (revenue under AED 50 million).

General guidance from the Ministry of Finance decisions, guidelines and the PINT AE specification, not tax or legal advice. For your situation, check with the FTA or a qualified tax advisor.

The details to collect from each business customer

Ministerial Decision No. 243 of 2025 leaves the data fields to the Ministry (Art. 7), and the Ministry uses the Peppol PINT AE specification (Guidelines §10). These are the buyer fields its UAE rules check:

Detail	What to collect	Why
Legal name	As on the trade licence, not a brand or shop name.	Buyer name is on every e-invoice.
TRN, or TIN if not VAT-registered	TRN: 15 digits, starts with 1, ends with 03. TIN: the first 10 digits of the TRN; a business with no TRN gets one from the FTA.	A UAE buyer needs one or the other (IBR-135-AE). The TRN format is checked (IBR-132-AE).
Peppol ID	0235 followed by the 10-digit TIN. It is where the e-invoice is delivered.	Collecting it is the supplier's job (Guidelines §5.2).
Trade licence number and issuing authority	Or Emirates ID, passport or Cabinet decision, with its type. For a trade licence, the authority that issued it.	Required when the buyer has a real UAE Peppol ID (IBR-149-AE, IBR-180-AE, IBR-101-AE).
Address	Street or building line, city and emirate.	All three are required (IBR-144-AE).
Beneficiary (free zone customers)	The person that actually uses what you supply, if not the customer itself.	Guidelines §10.4, scenario 1.
Whether they are on e-invoicing yet	Their go-live date, or that they have no Peppol ID yet.	Decides the delivery address and whether you also send a PDF (§10.2.2).

The TRN is still what your customer needs to reclaim input VAT, exactly as on a PDF tax invoice today. What is new is the Peppol ID, the trade licence number and a structured address. Free zone customers are in scope like mainland ones (VAT on free zone customers). How the Peppol ID works: PINT AE vs Peppol.

Customers not on e-invoicing yet, abroad, or consumers

A UAE business that is not live yet. You still send the e-invoice, to the placeholder 0235:9900000098, and give them an ordinary tax invoice, such as a PDF, as well (Guidelines §10.2.2). Your obligation does not wait for theirs (§6.1). See can I still use PDF invoices after July 2027.
A business abroad. Their foreign tax number where they have one, a VAT number only if one applies, and 0235:9900000099 for an export to a buyer not on Peppol (§18.2.3, §10.4). Details in customers abroad, exempt supplies and marketplace sellers.
An individual consumer. Nothing new. Sales to consumers are outside e-invoicing until the Minister decides otherwise (Ministerial Decision No. 244 of 2025, Art. 5(2)).

Why e-invoices get rejected

Your ASP validates each e-invoice before sending it, and your customer's ASP validates it again on arrival. If it fails, you get an electronic message saying so (Guidelines §5.1 and §13.3). The MoF does not publish a list of rejection reasons. The ones below are the PINT AE rules that depend on customer data, so they are the ones that fail when that data was never collected:

TRN in the wrong form. Any VAT number on the invoice must be a 15-digit TRN starting with 1 and ending with 03 (IBR-132-AE). A typo, a missing digit or a corporate tax number in the VAT field fails.
No TIN or TRN for a UAE customer. A domestic e-invoice to a UAE Peppol participant needs the buyer's TIN or TRN (IBR-135-AE). A reverse-charge sale, such as mobile phones or scrap metal between registrants, needs the buyer's TRN (IBR-103-AE).
No trade licence number. The buyer's legal registration identifier and its type are required when the buyer has a real UAE Peppol ID, and for a trade licence the issuing authority too (IBR-149-AE, IBR-180-AE, IBR-101-AE). An ordinary tax invoice does not need it.
Incomplete address. Address line, city and emirate must all be there (IBR-144-AE). A one-line address such as "Dubai" does not pass.
Wrong Peppol ID, or the wrong placeholder. An e-invoice addressed to a Peppol ID that does not exist cannot be delivered. The two placeholders are not interchangeable: 0235:9900000098 is for a buyer not on UAE e-invoicing, 0235:9900000099 only for an export to a buyer not on Peppol (Guidelines §18.3.3).
Errors that are not about the customer. Totals that do not add up, a code outside its list, an exempt line with no exemption reason (IBR-167-AE), a credit note with no reference to the original invoice (IBR-055-AE). More in PINT AE mandatory fields.

After a rejection

Until it goes through, the e-invoice has not been sent. Fix the data and send it again within your deadline: the VAT timeline if you are VAT-registered (a tax invoice within 14 days of the supply), otherwise 14 business days from the date of the transaction (Ministerial Decision No. 243 of 2025, Art. 6(4) and 6(5), as amended by Ministerial Decision No. 197 of 2026). Agree with your ASP before go-live how errors are reported and fixed (Guidelines §13.4).

An e-invoice that was delivered but turns out wrong is a different case: it cannot be edited. See made a mistake on an e-invoice? Credit notes and corrections.

Each e-invoice not sent through the system can be fined (Cabinet Decision No. 173 of 2026). The decisions do not set a separate penalty for appointing an ASP late. For businesses under AED 50 million, per-invoice penalties apply from 1 July 2027: AED 100 for each e-invoice or e-credit note not sent through the system, up to AED 5,000 a month (Cabinet Decision No. 173 of 2026).

What to collect from customers now

List your business and government customers. Consumers are outside e-invoicing, so mark them as individuals and leave them out.
Ask each one for their TRN certificate and trade licence. Both documents give you the legal name, TRN, licence number, issuing authority and registered address in one go. A customer with no TRN can give you its TIN.
Check every TRN. The free TRN checker checks the number and shows whether it is listed on Peppol.
Complete each address. Street or building, city and emirate in separate fields, not one line.
Ask your largest customers when they go live. Businesses with AED 50 million or more go live on 1 January 2027. Until a customer is live you also send them an ordinary tax invoice, such as a PDF.

The rest of the plan, dated month by month, is in the checklist to 1 July 2027. Not sure you are in scope? See do I need e-invoicing for my small business.

How Fatura Go helps with customer details on e-invoices

1. Keep the records
UAE VAT law requires invoices and VAT records to be kept for at least five years. Fatura Go keeps issued invoices, credit notes, expenses and bills in one place, with each receipt attached to its expense. Each client's legal name, ID, TRN and address stay on the client record and are reused on every invoice.
2. Prepare for e-invoicing
The e-invoicing checklist shows which business and client details are still missing, and Fatura Go reminds you when a business client has no TRN.
3. Get help
Need an accountant to check your records before e-invoicing starts? Leave a request with Fatura Go support and say what you need. If you already work with an accountant, invite them to your account with their own login.

Fatura Go is invoicing software for UAE VAT. It is not an accredited service provider. We'll get you ready and connect you through an accredited partner. What you can use today:

Client TRN and Peppol check. Check a client's TRN and whether they are listed on Peppol with the free TRN checker.
The ASP register. The full list of accredited providers, compared with the Ministry of Finance register every week.
Credit notes. Corrections, discounts and refunds are issued as credit notes against the original invoice, the way e-invoicing expects them.
Client details for e-invoicing. On business and government clients you record the legal name, the ID type (trade licence, Emirates ID, passport or Cabinet decision) with its number and issuing authority, and the address with city and emirate. The TRN field checks that the number has 15 digits, and Fatura Go reminds you when a business client has no TRN.

Join the e-invoicing waitlist

We'll email you when you can send and receive e-invoices from Fatura Go through our accredited partner. No newsletter.

Start freeIssue VAT invoices today; your details carry over to e-invoicing.

Frequently asked questions

What do I need from my customer?

For each business or government customer in the UAE: their legal name, TRN (or 10-digit TIN if they are not VAT-registered), their Peppol ID, which is 0235 followed by the TIN, their trade licence number and issuing authority, and their address with street, city and emirate. Ask, too, whether they are on e-invoicing yet. For individual consumers you need nothing new: they are outside e-invoicing.

Which customer details does an e-invoice require?

Under the PINT AE rules, an e-invoice to a UAE business carries the buyer's electronic address (Peppol ID), their TIN or TRN, their legal registration identifier with its type (trade licence, Emirates ID, passport or Cabinet decision) and, for a trade licence, the issuing authority, plus a postal address with address line, city and emirate. A free zone customer also needs the beneficiary when someone else uses what you supply.

What usually causes an e-invoice to be rejected?

Missing or wrong customer data. Your accredited service provider checks every e-invoice against the PINT AE rules before sending it, and a single failed rule stops it. The rules most tied to customer data: a TRN that is not 15 digits starting with 1 and ending with 03, no TIN or TRN for a UAE buyer, no trade licence number, an address without city or emirate, and a placeholder address used in the wrong scenario.

What if my customer is not on e-invoicing yet?

You still send the e-invoice, addressed to the placeholder 0235:9900000098, and give the customer an ordinary tax invoice, such as a PDF, as well. Your obligation does not depend on whether your customer has gone live (MoF Guidelines v2.0, §6.1 and §10.2.2).

How do I find a customer's Peppol ID?

Ask them. The MoF guidelines make it the supplier's job to contact the buyer and collect their Peppol participant identifier; your provider then looks it up on the network. A UAE business's Peppol ID is 0235 followed by its 10-digit TIN, the first 10 digits of its TRN. A free TRN checker can show whether a TRN is listed on Peppol.

Deadlines, fines and the full checklist: UAE e-invoicing hub.