UAE e-invoice mandatory fields in 2026: the 51 fields of a tax invoice, the 49 of a commercial one, and who in your company owns each

A UAE electronic tax invoice has 51 mandatory fields and a commercial e-invoice has 49, according to version 1.1 of the Ministry of Finance list, dated 28 October 2026. They fall into six groups: invoice details, seller, buyer, totals, tax breakdown and lines. Most come from master data your teams already keep.

What changed. Version 1.1 of the Ministry of Finance's "UAE Electronic Invoice Mandatory Fields", dated 28 October 2026, is now on the Ministry's e-invoicing page next to the Electronic Invoicing Guidelines, version 2.0 of 26 October 2026. It is the base list of fields every UAE e-invoice must carry. Businesses with revenue of AED 50 million or more had to appoint an accredited service provider by 30 October 2026 (Ministerial Resolution No. 66 of 2026; the Guidelines' table prints 31 October) and must implement by 1 January 2027; the UAE e-invoicing timeline has every group's dates.

The 51 fields at a glance

The Ministry's list counts the fields one by one. Grouped, they look like this:

Several fields are fixed or defaulted. The business process type and the specification identifier have predefined values; the Ministry's sample invoice shows them as urn:peppol:bis:billing and urn:peppol:pint:billing-1@ae-1. The seller electronic identifier is always 0235, the tax scheme defaults to VAT, and a UAE seller's country code is AE. The rest comes from your data.

The 51 are the base list, not the ceiling. Each special scenario adds fields of its own, such as the beneficiary for a free zone supply. And the Guidelines make the buyer's legal registration mandatory on an out-of-scope invoice (type code 480) and on a credit note for goods or services (type code 81).

You also cannot invent fields. The Guidelines say a business may not add optional fields of its own into PINT-AE, the UAE e-invoice format; industry-specific needs are discussed with your provider.

Tax invoice or commercial e-invoice: the three differences

A commercial invoice is any e-invoice that is not a tax invoice. The two lists share 46 fields. They differ in three places:

The AED fields matter if you invoice in another currency. A tax invoice in US dollars still needs every line's VAT and amount in dirhams, so your system needs, on every such invoice, the exchange rate approved by the Central Bank.

Your e-invoicing address: TIN, 0235 and the Tax Group trap

Your seller electronic address is your Tax Identification Number (TIN), and the seller electronic identifier is the fixed value 0235. Together they make your address on the Peppol network, the international e-invoicing network the UAE uses. The TIN is the first 10 digits of your 15-digit Corporate Tax TRN.

Worked example, from the Ministry's own sample invoice:

Three points the Ministry's list makes plain:

• No VAT registration does not mean no e-invoice. E-invoicing applies to any business in the UAE whether or not it is registered for VAT, unless it is excluded. The scope guide walks through the exclusions.
• No Corporate Tax registration means you must ask for a TIN. Corporate Tax registrants already have one. A business in scope that does not have to register for Corporate Tax must register with the Federal Tax Authority (FTA) to receive its TIN.
• Tax Groups do not share an address. Each member's TIN is the first 10 digits of its own Corporate Tax TRN, never the representative's.

One trap sits in field 15. A seller registered for VAT puts its 15-digit VAT TRN there; a seller not registered for VAT gives its 10-digit TIN instead, and the Guidelines say a Corporate Tax TRN must never go in the VAT field. If your Corporate Tax and VAT profiles show different TINs, the Guidelines (section 18.1.2) tell you to ask the FTA or your tax adviser.

Who in your company owns each field

In our view, this is where most of the work is. The provider validates the fields; it cannot know whether they are true. Almost every field comes from a record someone in your company already keeps:

Fix the master data once and every invoice inherits it. Leave it and every invoice inherits the error. After go-live, the Guidelines ask you to update your provider promptly when your circumstances change, such as registering for VAT or joining a Tax Group. Penalties for e-invoicing failures are set by Cabinet Decision No. 173 of 2026; see our penalty table.

The transaction type code: eight flags in one field

Field 5 is a sequence of eight flags, 1 if a case applies and 0 if it does not, in this order:

So a plain local sale is 00000000. A monthly maintenance contract for a customer in a free zone sets positions 1 and 5: 10001000. A deemed supply, such as a gift above the VAT threshold, sets position 2: 01000000. When more than one case applies, the Guidelines say one invoice must carry the extra requirements of each, such as the beneficiary's details for a free zone supply.

Buyers who are not on the network yet

Not every customer will have an e-invoicing address on your go-live day. The Guidelines give predefined addresses:

Section 18.3.3 adds a warning: these values are chosen from the whole scenario, the transaction type and the buyer's status together, never on their own. Section 18.2.3 adds another: an invoice is not marked as an export only because the buyer is outside the UAE. For foreign customers, agree the rule with your provider in writing and test one invoice of each kind before go-live.

Five checks to run this month

1. Confirm your provider and each entity's TIN. If your revenue is AED 50 million or more and you have no accredited provider yet, the appointment date has passed: start today with our 60-day plan. Then take the first 10 digits of each entity's own Corporate Tax TRN; for any entity not registered for Corporate Tax, start its FTA registration for a TIN now.
2. Fill the seller fields once. Legal name, licence number and type, street, city and emirate for every entity and branch that invoices.
3. Clean the customer master. Merge duplicates, then complete each business customer's TRN or legal registration and address. Ask your biggest customers for their e-invoicing address.
4. Give every item a unit and a description. An item with no clear name, description or unit code leaves a mandatory field empty on every invoice that uses it.
5. Test the hard cases. One invoice in a foreign currency, one free zone supply, one export and one credit note, through your provider's test setup. Not sure which provider does what? Read what an ASP does and what your software does.

How Tarleaks helps

Tarleaks Accounting has an e-invoicing readiness check for each branch and legal entity. It flags what is missing as mandatory, warning or guidance, in English and Arabic: legal name, street, city, emirate, trade licence and its type and authority, TRN and TIN, which it can take from the TRN. Contacts & Partners holds each customer's e-invoicing details once. The UAE module sets the eight transaction flags and the predefined buyer addresses.

What to do next

• Download the Ministry's mandatory fields list and give each group in the owner table to a named person this week.
• Check your dates and penalties in the UAE e-invoicing timeline.
• Book a demo to see the readiness check list what a branch is missing, with sample data.

Questions people ask

How many mandatory fields does a UAE e-invoice have?

51 for an electronic tax invoice and 49 for a commercial e-invoice, according to version 1.1 of the Ministry of Finance list, dated 28 October 2026. Some scenarios, such as free zone supplies or exports, add fields of their own.

What is the UAE Peppol ID format?

0235 followed by your 10-digit Tax Identification Number (TIN). The TIN is the first 10 digits of your own Corporate Tax TRN; in the Ministry's sample invoice, TRN 123456789012003 sits beside the address 0235:1234567890. In a Tax Group, use your own Corporate Tax TRN, not the representative's.

What is the difference between a tax invoice and a commercial e-invoice?

Three groups of fields. A tax invoice carries the seller's TRN, the TRN of a UAE buyer registered for tax, and each line's VAT and amount in AED. A commercial e-invoice drops the two AED line fields, asks for the buyer's legal registration (trade licence, Emirates ID, passport or Cabinet Decision) instead of its TRN, and accepts the seller's TIN when it has no TRN.

Do I need a TRN to issue a UAE e-invoice?

No. E-invoicing applies whether or not you are registered for VAT, unless you are excluded. You need a TIN: Corporate Tax registrants already have one, and a business that does not have to register for Corporate Tax must register with the Federal Tax Authority to receive it.

What is the invoice transaction type code?

Eight flags of 1 or 0, one for each special case: free zone, deemed supply, margin scheme, summary invoice, continuous supply, disclosed agent billing, e-commerce and exports. A plain sale is 00000000; a monthly service contract for a free zone customer is 10001000.

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General information, not legal or tax advice. Checked against the official sources listed on this page on 11 November 2026. The Ministry updates these documents: check the current version on its e-invoicing page before you build to it. Confirm your position with the Ministry of Finance, the Federal Tax Authority or your adviser.