UAE E-Invoicing Deadlines: Which Date Applies to Your Business

Every UAE e-invoicing date in one table

Ministerial Decision 244 of 2025 sets the phases (Decision 244). The Ministry of Finance moved the first ASP appointment date in May 2026 and kept every go-live date (Ministry of Finance, May 2026). Dates for the later phases are confirmed by KPMG and Deloitte.

If your revenue is AED 50 million or more, your ASP deadline is days away as of late October 2026. Read the phase one section below first.

Work out your phase in three questions

1. Is your annual revenue AED 50 million or more? If yes, you are in phase one. Ask your tax adviser which revenue figure and period to use for a group with several entities, because getting this wrong moves you by six months.
2. Are you a government entity? If yes, your dates are 31 March 2027 and 1 October 2027. Transactions in a sovereign capacity are excluded.
3. Are all your sales excluded? B2C sales are excluded until further notice. Other exclusions include certain international airline services and exempt or zero-rated financial services, and transactions between members of the same VAT tax group are excluded for 24 months from 1 January 2027.

Sources: EY, Deloitte, Ministry of Finance, October 2026. If you answered no to all three, you are in phase two, with a 1 July 2027 go-live. Remember that receiving counts too: both issuers and recipients appoint an ASP.

Why businesses miss e-invoicing deadlines

The deadline rarely slips because of the ASP contract itself. It slips because:

• The ERP or accounting system cannot produce the data, and nobody priced the fix until the ASP asked for a test file.
• Customer and supplier master data (TRNs, addresses, legal names) is incomplete, and cleaning it takes weeks of finance time.
• Ownership sits between finance and IT, so neither starts.
• Teams wait for the "final" rules. The rules have already changed twice in 2026, and the go-live dates held both times.

Phase one (AED 50 million or more): what to do now

1. Appoint an ASP by 30 October 2026. Choose from the Ministry of Finance ASP list, which named 70 accredited providers on 25 October 2026. If you miss the date, appoint one as soon as possible; the fine runs per month or part of a month.
2. Get sandbox access in November and send test files from your real system, not the ASP's demo.
3. Fix master data in November and December. TRNs on every B2B customer and supplier, structured addresses, tax codes mapped to UAE categories.
4. Freeze changes to invoicing in mid-December and run a parallel test of a full week of invoices and credit notes.
5. Go live on 1 January 2027 with someone named to clear rejections every day for the first month.

Phase two (under AED 50 million): a month-by-month plan to July 2027

Your large customers will be live from January 2027, so expect them to start asking for your Peppol details in the first half of 2027, even before you must send.

Government entities and their suppliers

Government entities have until 31 March 2027 to appoint an ASP and 1 October 2027 to go live. On our reading of the dates, suppliers to government follow their own revenue phase for sending, so many will already be issuing e-invoices before their government customers are required to receive them. Ask your government customers which channel they will accept in the gap, and keep proof of delivery.

UAE e-invoicing readiness checklist

• Phase confirmed in writing by your tax adviser
• ASP appointed (a signed contract, not a quote)
• Sandbox credentials and API documentation received
• Every system that issues invoices listed, including POS, billing tools and spreadsheets
• Company TRN and Peppol identifier recorded in your ERP
• TRNs and structured addresses on all B2B customers and suppliers
• Each tax code mapped to a UAE category (standard, zero-rated, exempt, out of scope, reverse charge)
• Credit note process replaces editing posted invoices
• Inbound process for supplier e-invoices agreed with accounts payable
• Rejection handling: who fixes, within how many hours
• Record retention set for the Tax Procedures Law period
• Test matrix passed in the sandbox, including failures

What happens if you are late: the fines

Cabinet Decision 106 of 2025 sets the administrative fines (Cabinet Decision text, EY summary). They apply to everyone subject to e-invoicing except voluntary participants.

The system failure duty was removed by Ministerial Decision 197 of 2026 (Ministry of Finance); ask your adviser how that affects the related fines.

Worked example (illustration only): a phase one company appoints its ASP on 15 December 2026 instead of 30 October. That is one full month and part of a second, so up to AED 10,000. If it then sends 300 invoices a month outside the system in January, the invoice fine is capped at AED 5,000 for that month.

The 2026 deadline extension and other rule changes

May 2026: the phase one ASP date moved from 31 July to 30 October 2026, and providers were allowed to partner with international technology firms (Ministry of Finance). October 2026: Decision 197 of 2026, effective 1 October, excluded tax group transactions for 24 months, removed the requirement to store e-invoice data inside the UAE, and repealed the system failure notification (Ministry of Finance).

None of these moved a go-live date. Check the Ministry of Finance e-invoicing page monthly, and plan to the dates in the table above unless an official notice says otherwise.

How to measure readiness week by week

• Master data completeness: percentage of active B2B customers and suppliers with a valid TRN and structured address. Target 100% before testing ends.
• Sandbox pass rate: test invoices accepted on the first attempt. Track by document type.
• Days to deadline versus open tasks: if the open list is not shrinking each week, escalate.
• After go-live: open rejections and unsent documents at the end of each day.

Common deadline mistakes

• Reading the ASP extension as a go-live extension. It is not.
• Planning only for sales invoices and forgetting supplier bills and credit notes.
• Leaving one invoicing tool (a POS, a rental billing system, a spreadsheet) out of scope.
• Booking all testing for the last two weeks, when ASP support queues are longest.

Where Devvista fits if you use Odoo

If your invoices come out of Odoo, Devvista is an official Odoo partner that gets UAE businesses e-invoicing ready on Odoo before their phase date, from data clean-up and tax mapping to the ASP connector and go-live support. We work remotely and alongside your ASP and tax adviser, who keep their own responsibilities.

How the technical side works is on our Odoo UAE e-invoicing integration page. Not on Odoo yet? See Odoo implementation for UAE businesses, or go back to the UAE hub. If you are not an Odoo user, your ERP vendor or ASP is the better first call. For what Odoo itself costs, see our Odoo pricing guide.