The pilot and the voluntary phase: joining through EmaraTax, what it requires, and why no penalties apply before your date

The short version. The pilot is by written invitation from the Ministry and your written consent. The voluntary phase has been open to any business since 1 July 2026, with no revenue threshold. In both cases you meet every technical requirement, but penalties apply only from your mandatory date — the best offer in the whole system: you rehearse without risk.

What was actually launched

On 26 June 2026, at an event in Sharjah, Under-secretary of Finance Younis Al Khoori and FTA Director-General Abdulaziz Al Mulla announced the start of the pilot on the five-corner model. Before that, on 12 May, at an event with Dubai Chambers attended by more than 500 private-sector representatives, the four-corner model (invoice exchange between providers) was announced as live. Between the two: exchange working, then reporting to the FTA working.

Pilot versus voluntary: the difference

	Pilot programme	Voluntary phase
Who?	Businesses the Ministry selects and notifies in writing (chapter 8.1)	Any person, regardless of revenue (chapter 8.2)
When?	From 1 July 2026	From 1 July 2026
Consent	Included only if you agree in writing	On your own initiative via EmaraTax
Obligations	All technical requirements set by the Ministry and the FTA	The same technical requirements
Penalties	Apply only from your mandatory date (1 January or 1 July 2027)

The onboarding steps, per chapter 9 and Appendix 1

Understand the requirements. Decisions 243 and 244 as amended, Decision 168 of 2026 (which replaced Decision 64 on 1 October 2026), the penalties decision 106, and Guidelines 1.1. Identify what must change in your accounting or ERP system.
Choose an accredited provider and sign. Then — the point many miss — you initiate the onboarding on the EmaraTax platform on the FTA website, not the provider. You select your provider from the list inside the platform.
Obtain a Peppol participant identifier for your business through your provider. That identifier is your "address" on the network; it is how your suppliers reach you.
Test exchange and reporting end to end. Agree with the provider how invoice data leaves your system, confirm your system is ready, then send test invoices and receive some.
Go live. Agree roles with the provider: who watches transmission, who handles errors and rejected invoices, and how you are told.
Ongoing: manage changes. Any change in your details (name, licence, TRN, provider) goes through the re-verification or offboarding process in EmaraTax. Failing to report a change costs AED 1,000 per day.

Why join voluntarily before your date

You test without penalties. The guidelines are explicit: administrative penalties "shall only be applicable from the date that Person is required to mandatorily implement". Mistakes in October are free; in January they cost AED 100 per invoice, up to 5,000 a month.
You find your data gaps early. Missing customer TRNs, inconsistent units of measure, wrong tax categories — the system rejects all of them, and now is the best time to find out.
Your large suppliers will send to you from January. If you are in the second tier, your big suppliers' invoices will arrive electronically six months before your own date. Voluntary registration means you receive them in your system, not in an email.
You negotiate from strength. A registered, tested business can switch providers before its mandatory date if the performance disappoints. Whoever signs in the last week has no such option.

Careful. "Voluntary" does not mean "partial". Whoever joins voluntarily meets all technical requirements — you cannot e-invoice some customers and PDF others once registered. Plan for full operation from day one, even if over a short test window.