How to appoint an ASP
This is the step most guidance leaves as a single sentence, and it is the one that takes the longest.
The process starts with you, not with the provider. Onboarding is initiated by the taxpayer through the EmaraTax portal — you do not sign up on an ASP's website and work backwards.
Log in to EmaraTax and open the E-Invoicing section. The list of accredited service providers is shown there, which is also the only list worth trusting: accreditation can be granted and withdrawn, so a list published anywhere else may be out of date.
Select a provider and continue to their portal from EmaraTax. Your ASP then registers your Participant Identifier on the network.
You use a single ASP for all of your e-invoicing. This is not a service you split between providers, so the choice is worth making carefully rather than quickly.
Your Participant Identifier
Your address on the network is the code 0235 followed by your 10-digit Tax Identification Number — for example 0235:1234567890.
Your TIN is the first 10 digits of your 15-digit TRN. If you are registered for VAT or Corporate Tax you already have one. If you are not registered for any tax type but fall in scope for e-invoicing, you must register with the FTA through EmaraTax to obtain a TIN before a Participant Identifier can be created for you.
In a tax group, each member uses its own TIN. The representative member's TRN is not used.
There is also a predefined code for domestic buyers who are not yet on the network, so an invoice to a supplier or customer who has not onboarded can still be transmitted and reported.
What is the UAE e-invoicing mandate?
The UAE is rolling out continuous transaction controls for electronic invoicing. In-scope businesses must send invoices as structured XML through an Accredited Service Provider (ASP) connected to the national network — not as a standalone PDF or paper document. An ASP is the accredited gateway that validates and transmits your e-invoices. The voluntary / pilot phase opened on 1 July 2026; mandatory waves follow in 2027 by revenue and entity type.
For a deeper walkthrough of Peppol, PINT AE, and what to prepare, read our UAE e-invoicing 2027 timeline, including the AED penalties and how a small business should choose an ASP. Once you know you are in scope, see what an Accredited Service Provider (ASP) is and whether a PDF still counts as an e-invoice, or Peppol and PINT AE in plain English.
Phases at a glance
| Who | Go-live | ASP deadline |
|---|---|---|
| Annual revenue ≥ AED 50 million | 1 January 2027 | 30 October 2026 |
| Annual revenue below AED 50 million | 1 July 2027 | 31 March 2027 |
| Government entities | 1 October 2027 | 31 March 2027 |
Scope is B2B and B2G. B2C-only sellers are currently out of scope. Not implementing e-invoicing or not appointing an ASP: AED 5,000, then AED 5,000 a month, capped at AED 50,000 in any 12 months (Cabinet Decision No. 173 of 2026). Legal basis: Ministerial Decision No. 244 of 2025 (amended by No. 66 of 2026); Ministerial Decision No. 243 of 2025 (amended by No. 197 of 2026); Ministerial Decision No. 64 of 2025 (replaced by No. 168 of 2026 from 1 October 2026); Cabinet Decision No. 173 of 2026 (replaced No. 106 of 2025); MoF Electronic Invoicing Guidelines v2.0 (26 October 2026).