UAE e-invoicing deadlines run from 30 October 2026 to 1 October 2027.

Five dates, counted down at Gulf Standard Time.

Each figure counts the days from today to a date in the Ministry of Finance decisions.

The largest businesses go live first, on 1 January 2027.

Ministerial Decision No. 244 of 2025 on the Implementation of the Electronic Invoicing System sets the phases, and Ministerial Decision No. 66 of 2026 amends one of its dates. The Ministry of Finance names its e-invoicing portal as the only official source of information on the programme at this time.

Revenue in your latest accounting period decides your phase.

The decision defines revenue as the gross income of your most recent accounting period, taken from financial statements prepared under UAE law or, where there are none, from other documentation the Federal Tax Authority accepts. The amended text puts a business in the first phase when its revenue 'is equal to or exceeds AED 50,000,000'. The Ministry's announcement of the change says 'exceeding'. The decision is the binding text, and your tax adviser confirms which side of the line you sit on.

Size and VAT status do not take a business out of scope. Ministerial Decision No. 243 of 2025 applies to any person conducting business in the UAE, in respect of every business transaction, and the Ministry's guidelines add that this holds regardless of VAT registration status.

Five kinds of transaction sit outside the system for now:

• Business-to-consumer transactions, and any person dealing exclusively with consumers, until the Minister decides otherwise.
• Transactions by government entities in a sovereign capacity that do not compete with the private sector.
• International passenger flights sold on an electronic ticket, and the airline's ancillary services issued on an electronic miscellaneous document.
• International air cargo on an air waybill, for 24 months only.
• Financial services that are exempt from VAT or zero-rated under Article 42 of the VAT Executive Regulation.

One timing concession comes from the Ministry's guidelines rather than a decision: transactions between members of the same VAT group get a grace period of 24 months from 1 January 2027. Those transactions stay in scope, and everything else a group member does follows its normal phase.

One date has moved since the phases were set.

On 10 May 2026 the Ministry of Finance announced that the largest businesses would have until 30 October 2026, instead of 31 July 2026, to appoint an Accredited Service Provider, and that their 1 January 2027 implementation date would stay. Ministerial Decision No. 66 of 2026 makes the change by replacing a single paragraph, Article 5(1)(a) of Decision No. 244. Every other date in the table is original.

The Ministry's programme briefing of 30 June 2026 calls the change 'a targeted and final adjustment' and says 'no further extensions will be granted'. Plan to the dates as published.

Two things in other sources mislead. The Ministry's own guidelines, version 1.1 dated 1 June 2026, still print 31 July 2026 in their phase table although they are dated after the amendment, and the decision prevails. Some widely read pages also present 30 October 2026 as the day e-invoicing goes live. That is the last day for the first group to appoint a provider, and their implementation date is 1 January 2027.

Readiness runs in four steps, each depending on the last.

The Ministry's guidelines set out the steps in this order:

• Understand the requirements and run a gap analysis, to learn whether your accounting or ERP system can produce every data point an e-invoice needs.
• Select an Accredited Service Provider from the Ministry's register, finish the contract, then start onboarding yourself through the Federal Tax Authority's EmaraTax. One provider covers both sending and receiving.
• Test the whole exchange: invoice data to your provider, the invoice to your buyer, confirmations back, supplier invoices in, and tax data reported to the Authority.
• Go live with an agreed way of resolving errors, then keep your provider informed of changes to your registration.

Work back from your implementation date. The provider is appointed first, and the data work has to be finished before testing can prove anything. The readiness checklist sets out the work step by step, how to choose an ASP covers the appointment, and ERPNext users can start with ERPNext and UAE e-invoicing.

Once you are live, four more clocks run.

Each of these time limits comes from the decisions and applies from the day you go live:

A missed deadline costs AED 5,000 for every month of delay.

Cabinet Decision No. 106 of 2025 sets the administrative penalties, and three of them attach to the dates on this page:

• Failing to implement the system, including failing to appoint an Accredited Service Provider in time: AED 5,000 for each month, or part of a month, of delay.
• Failing to issue and transmit an e-invoice or an e-credit note in time: AED 100 per document, up to AED 5,000 per calendar month.
• Failing to notify the Authority of a system failure, or your ASP of a change to your registered data, in time: AED 1,000 for each day, or part of a day, of delay.

Voluntary issuers are outside the decision, and the guidelines say penalties apply only from the date your mandatory phase begins.

Every date traces to a Ministry of Finance source.

• Ministerial Decision No. 243 of 2025 on the Electronic Invoicing System: scope, exclusions and obligations.
• Ministerial Decision No. 244 of 2025 on the Implementation of the Electronic Invoicing System: the pilot and the phases.
• Ministerial Decision No. 66 of 2026: the new appointment date for the first phase.
• Ministerial Decision No. 64 of 2025, amended by No. 56 of 2026: who may become an Accredited Service Provider.
• Cabinet Decision No. 106 of 2025: penalties.
• The UAE Electronic Invoicing Guidelines, version 1.1, and the register of Accredited Service Providers.

We read every one of them on the Ministry of Finance website on 23 September 2026. On that day the Ministry's e-invoicing page listed no decision newer than No. 66 of 2026.

SolaryxDev prepares your system and connects it to your provider.

Our readiness work is planned against the dates above, and all of it happens inside the system you already run: a gap report on a month of your invoices, cleaned master data, the PINT AE mapping, a tested connection to your provider, and a way to correct rejections before they go unpaid.

UAE e-invoicing readiness describes the full engagement. If you advise clients through the mandate, the accounting firms page is written for you. To start, book a call.