By Akanksha Surana, Accounting Software Consultant at Perfonec Computers | Updated July 2026
Quick answer: On 1 June 2026, the UAE Ministry of Finance released Version 1.1 of its Electronic Invoicing Guidelines — the most significant regulatory update to the UAE e-invoicing framework since the original Ministerial Decisions were issued in September 2025. Version 1.1 introduces important clarifications on retention billing, advance payments, offshore data storage, intra-group transactions, and several other areas that directly affect how UAE businesses must configure their invoicing workflows before mandatory deadlines in 2027. This article covers every key change and what action your UAE business needs to take. For complete implementation support, contact Perfonec Computers — authorised implementation partner for Odoo, QuickBooks, TallyPrime, and Zoho Books in Dubai.
The UAE e-invoicing landscape has moved quickly in 2026. After the original framework was established under Ministerial Decisions No. 243 and No. 244 of 2025 in September 2025, the Ministry of Finance has continued to refine and clarify the rules as the mandatory deadlines approach. The release of Version 1.1 of the Electronic Invoicing Guidelines on 1 June 2026 represents the most comprehensive update to date — and several of the changes have direct, practical implications for UAE businesses currently preparing their accounting software and ERP systems for compliance.
If you have been following the original e-invoicing guidelines published in late 2025, read this article carefully — some of what you understood to be the rules has now been updated or clarified in ways that affect your implementation timeline and configuration requirements.
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Download our free UAE E-Invoicing Version 1.1 Quick Reference Guide — all 7 key changes, updated deadline table, action checklist by business type, and what does not change summary.
What Is Version 1.1 and Why Was It Released?
The original UAE e-invoicing framework was published in September 2025 and covered the high-level structure — the Peppol 5-corner model, the PINT AE XML format requirement, the ASP appointment mandate, and the phased implementation timeline. However, several specific transaction scenarios were not addressed in sufficient detail for ERP teams and accountants to configure their systems correctly.
Version 1.1 addresses this gap. It was released ahead of the pilot phase beginning in July 2026 — a deliberate decision by the Ministry to ensure businesses entering the pilot had clear guidance on the specific scenarios most commonly encountered in UAE commercial practice. The Version 1.1 update also incorporated feedback from businesses and ASPs who had begun their implementation planning based on the original framework and encountered areas requiring clarification.
Change 1 — Retention Billing: New Rules for Contracting and Construction Businesses
Retention billing is common practice in UAE construction and contracting — a percentage of each invoice (typically 5 to 10 percent) is withheld by the client until project completion or a defects liability period expires. Under the original e-invoicing framework, it was unclear how this retention should be reflected in the PINT AE XML invoice structure.
Version 1.1 now clarifies this explicitly. When a progress invoice is issued, the e-invoice must show the gross amount for the work completed, deduct the retention amount, and reflect the net payable figure — with UAE VAT applied to that net amount only. A completely separate electronic tax invoice must be issued when the retained amount is eventually released and becomes payable — at which point VAT on the retention amount is also due and must be declared.
Change 2 — Advance Payments: How to Invoice Deposits Under the New Rules
Advance payment invoicing is common across many UAE business sectors — hospitality, events, manufacturing, and professional services all frequently receive deposits before the full service or product is delivered. The original framework did not specifically address how these advance payments should flow through the e-invoicing system.
Version 1.1 clarifies the sequence. When an advance payment is received, the business must issue an electronic tax invoice for the advance amount immediately — applying UAE VAT at the correct rate on the advance. When the final delivery occurs and the balance invoice is issued, the final e-invoice must reference the earlier advance invoice and deduct the amount already invoiced and VAT already declared. This prevents double-counting of VAT and ensures the FTA can trace every payment event through the Peppol network.
For UAE businesses currently handling advance payments through deposit invoices or pro-forma invoices in their accounting software, this requires reviewing whether your current invoicing workflow captures the advance payment as a formal tax invoice rather than a non-VAT document. Perfonec reviews advance payment workflows as part of every e-invoicing implementation engagement.
Change 3 — Offshore and Cloud Data Storage Now Permitted
When the original framework was published, many UAE businesses using cloud-based accounting platforms — particularly Zoho Books and QuickBooks Online, whose servers are not UAE-based — were uncertain whether they would need to migrate data to UAE-hosted servers for e-invoicing compliance purposes. This created genuine concern among businesses that had recently adopted cloud accounting platforms.
Version 1.1 resolves this concern clearly. Offshore and cloud hosting of e-invoice data is permitted, subject to one condition — the data must be fully retrievable by the FTA on request. This means the UAE business must be able to produce any e-invoice record held offshore in a timely manner when the FTA requires it for audit or verification purposes. For UAE businesses using Zoho Books, QuickBooks Online, or Odoo Online — all of which host data in international cloud data centres — this clarification confirms that these platforms remain compliant vehicles for e-invoice data storage provided your ASP integration is correctly configured.
Change 4 — Intra-Group Transactions: 24-Month Grace Period Confirmed
UAE corporate groups that contain multiple legal entities within a single VAT group — where intercompany transactions are treated as internal supplies — were uncertain whether these intra-group invoices would need to flow through the full Peppol e-invoicing infrastructure from the same mandatory deadlines applying to external B2B transactions.
Version 1.1 clarifies that intra-group transactions within a UAE VAT group benefit from a 24-month transition period starting from 1 January 2027 — meaning the mandatory e-invoicing requirement for these specific transactions does not apply until 1 January 2029. This gives corporate groups with complex intercompany structures additional time to configure their systems for internal transaction flows without compromising their compliance on external B2B invoicing.
It is important to note that this grace period applies specifically to transactions within a UAE VAT group — it does not apply to transactions between related companies that are not part of the same VAT group. If your group has related entities that operate under separate VAT registrations, their intercompany transactions are subject to the standard mandatory deadlines.
Change 5 — Scope Confirmed for Non-VAT-Registered Businesses
This is one of the most significant scope clarifications in Version 1.1. Many smaller UAE businesses below the AED 375,000 VAT registration threshold assumed they would be exempt from UAE e-invoicing requirements entirely — on the basis that e-invoicing appeared primarily concerned with VAT compliance.
Version 1.1 makes clear that the UAE e-invoicing mandate is not exclusively a VAT initiative — it is a broader digital commerce and tax administration modernisation. The mandate covers all business transactions in the UAE regardless of VAT registration status. Non-VAT-registered businesses that conduct B2B transactions must issue commercial invoices electronically through an ASP in the PINT AE format. The difference is that these commercial invoices do not carry VAT — but they must still travel through the Peppol network via an accredited ASP when the mandatory deadline applies.
Change 6 — Free Zone Businesses: Explicitly Confirmed as In-Scope
Free zone businesses in the UAE have historically operated under different regulatory frameworks for certain tax purposes — particularly where designated free zones are treated differently for VAT. This created understandable confusion about whether free zone companies were required to comply with the e-invoicing mandate.
Version 1.1 removes any ambiguity. Free zone businesses conducting B2B or B2G transactions are within the scope of the UAE e-invoicing system. The e-invoicing mandate applies regardless of where in the UAE the business is licensed — mainland, free zone, or financial free zone. DMCC, JAFZA, IFZA, RAKEZ, ADGM, DIFC, and all other UAE free zones are in scope.
Version 1.1 also adds a specific requirement for certain free zone transaction scenarios — when a free zone business issues an invoice to a beneficiary (as distinct from the direct customer), the electronic invoice must include beneficiary details in addition to the standard customer information fields. Contact Perfonec for a free zone e-invoicing compliance assessment specific to your licence type and transaction profile.
Change 7 — Pilot Phase Officially Starts July 2026
The pilot phase runs from July 2026 through December 2026 for Phase 1 businesses (AED 50 million+ revenue). During this period, transactions processed through the e-invoicing system do not carry financial penalties for technical failures — it is a live testing environment with real invoices but without enforcement consequences for businesses making good-faith implementation efforts.
For smaller businesses below AED 50 million, the pilot phase represents the ideal window to get their implementation fully tested before the mandatory deadline of 1 July 2027. Participating in the pilot voluntarily means your team identifies and resolves integration errors, data mapping gaps, and PINT AE validation failures in a low-risk environment rather than discovering them on or after your mandatory compliance date.
Perfonec recommends that all UAE businesses planning to use Odoo, QuickBooks, TallyPrime, or Zoho Books for e-invoicing begin their ASP selection and software configuration now — with the aim of entering the pilot phase in Q3 or Q4 2026 regardless of their mandatory deadline.
Updated Mandatory Deadlines — Full Timeline After Version 1.1
Version 1.1 does not change the core mandatory go-live dates — but confirms them alongside the May 2026 deadline extension for Phase 1 ASP appointments:
| Business Category | ASP Appointment Deadline | Mandatory Go-Live |
|---|---|---|
| Revenue AED 50 million or above | 30 October 2026 (extended from 31 July 2026) | 1 January 2027 |
| All other VAT-registered SMEs | 31 March 2027 | 1 July 2027 |
| Government entities | 31 March 2027 | 1 October 2027 |
| Intra-group transactions (UAE VAT groups) | Grace period applies | 1 January 2029 |
| Pilot phase (all businesses — voluntary) | Available from 1 July 2026 | No penalty — testing period |
What Version 1.1 Does NOT Change
To avoid any confusion, here is what remains unchanged from the original framework:
- The PINT AE XML format remains the mandatory invoice format — PDF invoices alone are not valid for B2B transactions
- The Peppol 5-corner model remains the architecture — invoices must flow through ASPs, not directly to the FTA
- Businesses must appoint a single ASP for both sending and receiving invoices
- B2C transactions remain exempt from the mandatory e-invoicing requirement
- The penalty schedule under Cabinet Decision No. 106 of 2025 remains in effect — AED 5,000 per month for failure to implement, AED 100 per non-compliant invoice capped at AED 5,000 per month
- Data retention requirements of 5 to 7 years remain unchanged — 7 years where Corporate Tax applies
- The requirement to report system failures to the FTA within 2 business days remains unchanged
What UAE Businesses Must Do Now — Action Checklist
Based on the Version 1.1 updates, here is the immediate action checklist for UAE businesses across all size categories:
- Construction and contracting businesses — Review your retention billing workflows immediately. Your e-invoice templates must be reconfigured to show net payable amounts with separate invoices for retained amounts when released.
- Businesses receiving advance payments or deposits — Confirm your accounting software is configured to issue a formal electronic tax invoice at the time of advance receipt, not at the time of final delivery.
- Cloud accounting platform users — Confirm with your Perfonec consultant that your Zoho Books, QuickBooks Online, or Odoo Online instance is correctly configured for ASP integration. Offshore data storage is now confirmed as compliant.
- Corporate groups with UAE VAT groups — Identify which intercompany transactions qualify for the 24-month grace period and which related-entity transactions are subject to standard mandatory deadlines.
- Free zone businesses — Confirm your e-invoicing scope and check whether your transaction profile includes beneficiary-based scenarios requiring additional data fields in your PINT AE invoices.
- Non-VAT-registered businesses conducting B2B — You are in scope. Begin ASP evaluation and accounting software configuration for commercial invoice e-invoicing ahead of the July 2027 deadline.
- All UAE businesses — Select and appoint your ASP now. The pilot phase from July 2026 is the testing window — enter it with your integration ready rather than waiting for your mandatory deadline.
How Perfonec Helps UAE Businesses Comply With Version 1.1
Perfonec Computers provides complete UAE e-invoicing implementation for businesses using Odoo ERP, QuickBooks, TallyPrime, and Zoho Books. Our Version 1.1 compliance service covers all the changes documented in this article — retention billing reconfiguration, advance payment workflow review, ASP selection and integration, PINT AE data field audit, free zone transaction mapping, and pilot phase testing support.
Every Perfonec e-invoicing engagement begins with a PINT AE audit of your current accounting software configuration — reviewing every invoice template, customer master record, and product catalogue against the full mandatory field requirements including the Version 1.1 additions. This audit identifies exactly what needs to change before your ASP integration can go live.
Get Your UAE E-Invoicing Implementation Started
Perfonec Computers handles complete UAE e-invoicing implementation for Odoo, QuickBooks, TallyPrime, and Zoho Books — including Version 1.1 compliance updates, ASP integration, PINT AE audit, retention billing configuration, and pilot phase testing.
Authorised partner for all four platforms. Dubai-based team. Free e-invoicing readiness assessment available.
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About the author
Akanksha Surana
Akanksha Surana is an Accounting Software Consultant and certified QuickBooks Pro Advisor at Perfonec Computers, Dubai, with 9 years of experience implementing QuickBooks, Zoho Books, TallyPrime, and Odoo ERP for UAE businesses. She specialises in UAE VAT compliance, FTA e-invoicing integration, UAE Corporate Tax configuration, and ERP implementation for SMEs across Dubai and the wider UAE.
Frequently Asked Questions — UAE E-Invoicing Guidelines Version 1.1
When was UAE E-Invoicing Guidelines Version 1.1 released?
Version 1.1 of the UAE Electronic Invoicing Guidelines was released by the Ministry of Finance on 1 June 2026 — ahead of the pilot phase beginning in July 2026.
What are the main changes in Version 1.1?
The seven key changes are: new retention billing rules for construction businesses, advance payment invoicing guidance, offshore and cloud data storage now permitted, 24-month grace period for intra-group UAE VAT group transactions confirmed, scope confirmed for non-VAT-registered B2B businesses, free zone businesses explicitly confirmed as in scope, and the July 2026 pilot phase formally confirmed.
Are free zone businesses exempt from UAE e-invoicing?
No. Version 1.1 explicitly confirms that free zone businesses — including DMCC, JAFZA, IFZA, RAKEZ, ADGM, and DIFC companies — are within scope of the UAE e-invoicing mandate. There is no free zone exemption.
Can UAE businesses store e-invoice data on offshore or cloud servers?
Yes — Version 1.1 explicitly permits offshore and cloud data storage, provided the data is retrievable by the FTA on request. UAE businesses using cloud accounting platforms like Zoho Books, QuickBooks Online, or Odoo Online do not need to migrate data to UAE-based servers.
How does retention billing work under the new e-invoicing rules?
Each progress invoice must show the net amount payable after deducting retention, with VAT applied to the net figure only. A separate electronic tax invoice must be issued when the retained amount is released and payable. Contact Perfonec to configure your accounting software for Version 1.1 retention billing compliance.
Does Perfonec help with Version 1.1 e-invoicing compliance?
Yes. Perfonec provides complete UAE e-invoicing implementation including Version 1.1 compliance updates for Odoo, QuickBooks, TallyPrime, and Zoho Books — covering retention billing reconfiguration, advance payment workflows, ASP integration, PINT AE audit, free zone mapping, and pilot phase testing. Book a free e-invoicing assessment.
Published by Perfonec Computers — Authorised Partner for Odoo ERP, QuickBooks, TallyPrime, Zoho Books, and Sage 50 in the UAE. Based in Manama Street, Dubai, UAE. Based on the UAE Ministry of Finance Electronic Invoicing Guidelines Version 1.1 (1 June 2026), Ministerial Decisions No. 243 and 244 of 2025, and Cabinet Decision No. 106 of 2025. Verify current requirements at mof.gov.ae and tax.gov.ae. This article is for general guidance and does not constitute legal or tax advice.
