| Who you are | Appoint a provider by | Go live |
|---|---|---|
| Revenue AED 50 million or more | 30 October 2026 | 1 January 2027 |
| Revenue under AED 50 million | 31 March 2027 | 1 July 2027 |
| Government entities | 31 March 2027 | 1 October 2027 |
The detail
This is the single most consequential question in the whole programme, and it takes about an hour to answer definitively.
Everything downstream depends on it. Which dates you work to. Whether the pilot is a genuine option for you. How long you have for data remediation. Whether a system migration is feasible or has to be compressed. Whether you appoint a provider in a quiet market or a busy one.
And yet it is the step most commonly skipped, because businesses encounter a date in an article and treat it as theirs. That date is almost always 30 October 2026, which belongs to revenue AED 50 million or more.
For a business under that threshold, acting on it means starting a project eighteen months early, wasted budget, and provider contracts running before they are needed. For a business over it, acting on the SME dates means missing a mandatory deadline. Both errors come from the same omission.
Working backwards from your go-live date
The appointment deadline is not the date that should drive your plan. Go-live is, and the sequence backwards from it looks like this:
- Go-live: 1 July 2027 for the SME band, 1 January 2027 for the larger one
- Minus 2 to 3 months: integration testing, including your awkward transaction types rather than the vendor’s demonstration set
- Minus 4 to 6 months: provider appointed and integration underway
- Minus 6 to 9 months: provider selection, with your integration requirements already documented
- Minus 9 to 15 months: data remediation. Customer master, tax registration numbers, item master, line-level tax categories
- Minus 12 to 18 months: system capability assessment, and migration if your software cannot get there
Read the bottom two rows against your own go-live date. For an SME band business going live 1 July 2027, the data work should be starting around mid-2026 and the system question should be answered before that. That is considerably earlier than the appointment deadline implies.
Why the appointment deadline misleads
The appointment deadline is a procurement milestone. It is not a readiness milestone, and treating it as one is the most common planning error in this programme.
A business that appoints a provider on 31 March 2027 and expects to go live on 1 July 2027 has given itself three months for integration, testing and data remediation combined. Integration alone can consume that. Data remediation cannot be done in it at all, because it depends on customers responding to requests for their tax registration numbers.
What the appointment deadline actually tells you is the latest point at which you can still be compliant if everything else is already done. It is a backstop, not a schedule.
So the useful question is not “when must I appoint?” but “when must my data be ready?”, and the answer to that is roughly a year before go-live for most businesses.
If you are near the boundary
Businesses close to AED 50 million of revenue have a genuine question, and the safe answer is straightforward: plan to the earlier dates.
The asymmetry favours it heavily. Being ready a year early costs some project spend brought forward and a provider contract starting sooner than strictly necessary. Being in the larger band and having planned to the SME dates means missing a mandatory deadline by fifteen months.
That is not a close call.
The same logic applies to a business growing towards the threshold. If you expect to cross AED 50 million before the measurement point that determines your band, plan on the basis that you will. And confirm how the band is measured for your circumstances rather than assuming the current year’s figure settles it. That is precisely the kind of detail worth getting from a primary source rather than an article.
What to do once you know your dates
Establishing the band is an hour’s work. What it unlocks is a set of decisions that can then be made deliberately rather than under pressure:
- Whether the pilot is worth taking. For the revenue under AED 50 million band with a 1 July 2027 go-live, the pilot from Open from 1 July 2026 is roughly a year of optional runway. For the larger band it is a much tighter proposition
- Whether a system migration is feasible. A migration takes a couple of quarters, so the answer depends entirely on how much time your band gives you
- How to sequence the data work against everything else, since it is the phase that depends on third parties
- When to approach providers. Everyone in your band shares one appointment deadline, so the market is quietest well before it
- What to budget, and in which financial year: provider subscription, integration, and the internal time that never appears on a quote
None of those decisions can be made sensibly without the band, and all of them get more expensive the later they are taken. That is the whole argument for spending the hour.
What people get wrong
- Taking a date from an article without checking which band it belongs to.
- Treating the appointment deadline as the readiness deadline. It is a backstop, not a schedule.
- Planning forwards from appointment rather than backwards from go-live.
- Assuming three months between appointment and go-live is enough for integration and data work combined.
- Ignoring the system question until after the provider is chosen.
- Planning to SME dates when near the AED 50m boundary. The asymmetry strongly favours the earlier dates.
- Assuming your current revenue settles the band without checking how it is measured.
What to do about it
- Establish your annual revenue and therefore your band.
- Write down go-live first, then work backwards.
- Set the data-ready date at roughly a year before go-live.
- Answer the system capability question before anything else, since a migration takes quarters.
- If near the boundary, plan to the earlier dates.
Related questions
Frequently Asked Questions
What is my e-invoicing deadline?
It depends on revenue. Revenue under AED 50 million: appoint by 31 March 2027, go live 1 July 2027. Revenue AED 50 million or more: appoint by 30 October 2026, go live 1 January 2027. Most UAE businesses are in the first group.
Is 30 October 2026 my deadline?
Only if your revenue is revenue AED 50 million or more. It is the most widely republished date and it belongs to the largest band, for most businesses it is wrong by roughly eighteen months.
When should we actually start?
Work backwards from go-live rather than forwards from appointment. Data remediation should start roughly a year before go-live, and the system capability question should be answered before that, because a migration takes a couple of quarters.
Is the appointment deadline the readiness deadline?
No, and confusing the two is the most common planning error here. The appointment deadline is the latest point at which you can still be compliant if everything else is already done, a backstop rather than a schedule.
Can we appoint a provider and go live three months later?
Integration alone can consume three months, and data remediation cannot be done in that window at all, because it depends on customers responding to requests for their tax registration numbers. It is not a realistic sequence.
We are close to AED 50 million. Which dates apply?
Plan to the earlier ones. Being ready a year early costs some brought-forward project spend; being in the larger band while planning to SME dates means missing a mandatory deadline by fifteen months. The asymmetry is not close.
We are growing towards AED 50 million. What then?
Plan on the basis that you will cross it, and confirm how the band is measured for your circumstances rather than assuming the current year’s figure settles it. That is a detail worth getting from a primary source.
What is the very first step?
Establishing your band, which takes about an hour. Everything downstream depends on it, your dates, whether the pilot is a real option, how long you have for data work, and whether a system migration is feasible.
Does the pilot change our deadline?
No. The pilot is voluntary and your mandatory dates are unchanged by participating. What it changes is where you discover your problems: in a test environment rather than in production against a live deadline.
Does our financial year end affect our dates?
The go-live dates are fixed calendar dates rather than being tied to your financial year, so a business with a June year end goes live on the same day as one with a December year end. What your year end does affect is which financial year the project cost falls into, and whether the cutover lands mid-period, which is worth knowing for budgeting rather than for compliance.
Send us your annual revenue and your accounting system. That establishes your band, your two dates, and whether the system can get there, the cheapest step in the programme.
Check my compliance status 058 101 9570
Last reviewed 27 July 2026. Rates, thresholds and deadlines change, the e-invoicing provider deadline has already moved once. Confirm current requirements with the Federal Tax Authority before acting, or ask us to check your position.