How UAE E-Invoicing Works: The Five-Corner Model
Updated 2026-10-13 · by Brandew · اقرأ بالعربية
UAE e-invoicing is not a PDF sent by email. It is structured invoice data exchanged between accredited service providers over the Peppol network, with tax data reported to the Federal Tax Authority (FTA) as part of the same flow.
The five corners
- Corner 1, the supplier: your ERP, accounting software or business system creates the invoice and sends the data to your ASP.
- Corner 2, the supplier's ASP: validates the data, converts it to the UAE XML format if needed, sends it to the buyer's ASP and reports the tax data to the FTA.
- Corner 3, the buyer's ASP: validates the invoice, confirms receipt to Corner 2, delivers it to the buyer and reports the tax data to the FTA.
- Corner 4, the buyer: receives the e-invoice into its own system.
- Corner 5, the FTA: receives the tax data and confirms successful reporting to both ASPs, which pass the confirmation on to the supplier and the buyer.
Every business connects to the network only through its ASP, and each business appoints one ASP for both sending and receiving.
The invoice format: PINT AE in XML
E-invoices are issued, transmitted and received in XML, following the Peppol PINT AE specification for the UAE. The Ministry of Finance publishes the mandatory fields. E-invoices do not carry a QR code. If a buyer has not implemented e-invoicing yet, a regular tax invoice (for example a PDF) is still required in addition to the electronic one.
Addressing: participant identifiers
Each business on the network has a participant identifier made of the scheme code 0235 followed by its 10-digit Tax Identification Number (TIN), which is the first 10 digits of its 15-digit Tax Registration Number. The supplier is responsible for collecting the buyer's identifier. Special identifiers exist for buyers without one, for deemed supplies and for exports.
Credit notes, self-billing and failures
- Credit notes follow the same electronic flow as invoices.
- Under self-billing, the buyer issues and reports the e-invoice, so the buyer must already be on the system.
- If an ASP has a service disruption, it must notify the business and the FTA, and send and report all pending e-invoices once service resumes.
Record keeping
The business remains responsible for keeping its e-invoices even if the ASP stores them. For taxable persons the retention period is generally five years after the end of the relevant tax period, with longer periods in specific cases such as audits and real estate records.
What this means for your systems
Your systems sit at Corner 1, and Corner 4 when you receive invoices. They need complete invoice and customer data, the ability to send invoice data to your ASP through an API or file exchange, and a way to track statuses such as accepted, rejected and reported. Custom websites, booking platforms and in-house tools that issue invoices usually need the most work. Brandew builds and adapts these integrations; see our UAE e-invoicing integration service.
Related: UAE e-invoicing timeline by phase.
This article is a general technical overview based on the UAE Ministry of Finance Electronic Invoicing Guidelines (version 1.1, June 2026). It is not tax or legal advice. Brandew is a software development company, not an accredited service provider. Confirm your obligations with the Ministry of Finance, the Federal Tax Authority or your tax adviser.
Official sources
- UAE Ministry of Finance: Electronic Invoicing Guidelines v1.1 (June 2026)
- Ministerial Decisions No. 243 and No. 244 of 2025 on the Electronic Invoicing System and its phased implementation
Frequently asked questions
Can I keep sending PDF invoices?
For in-scope transactions the e-invoice in XML is required. A regular tax invoice such as a PDF is still needed in addition when the buyer has not implemented e-invoicing.
Do I connect directly to the FTA?
No. Businesses connect through their accredited service provider, which exchanges invoices with other ASPs and reports tax data to the FTA.
What is my Peppol participant identifier?
0235 followed by your 10-digit TIN, which is the first 10 digits of your Tax Registration Number.