Under the UAE's e-invoicing mandate, a supplier issuing a business-to-business (B2B) or business-to-government (B2G) invoice is responsible for generating it in a structured XML format, sending it through an Accredited Service Provider (ASP) and ensuring the same data reaches the Federal Tax Authority (FTA).
A PDF, a scanned copy or an emailed invoice will no longer count as valid once the mandate applies to a given business. The rollout is phased by revenue, so the exact deadline depends on the supplier's size.
What are a supplier's key responsibilities under UAE e-invoicing?
Here are some of the key responsibilities of a supplier:
Before issuing e-invoices
Before issuing e-invoices, a supplier must obtain a valid Tax Identification Number (TIN), which serves as its participant identifier on the Peppol network. The supplier must also appoint an ASP, as e-invoices can only be exchanged through an accredited provider.
While issuing e-invoices
All in-scope invoices must be issued through the appointed ASP rather than directly from the supplier's accounting or Enterprise Resource Planning (ERP) system. Suppliers are also required to comply with the prescribed invoice issuance timelines.
VAT-registered businesses must follow the standard VAT time-of-supply rules, while non-VAT-registered suppliers within the mandate must issue invoices within 14 days of the transaction date. Every invoice must include all mandatory information specified by the FTA, including buyer and seller identifiers, tax details and a unique invoice ID.
If the buyer is not onboarded
If the buyer has not yet been onboarded to an ASP, the supplier must route the invoice through the FTA-designated fallback endpoint instead of bypassing the e-invoicing process.
After issuing e-invoices
Suppliers are responsible for retaining e-invoices and their supporting records in a manner that preserves their integrity and ensures they remain accessible to the FTA in accordance with the Tax Procedures Law.
In case of a system failure
If a technical issue prevents the supplier from issuing or transmitting e-invoices as required, the supplier must notify the FTA of the failure within two business days.
What are the penalties for supplier non-compliance?
The taxpayer stays legally responsible for compliance even when the ASP is doing the technical work. Delegating the transmission does not transfer the liability. If a supplier fails to notify its ASP of changes to registered data within the required timeline, the penalty is AED 1,000 for each day the delay continues.
The bigger risk for most suppliers is operational rather than financial. A buyer using a compliant system cannot accept an invoice that fails PINT AE validation. The invoice will be rejected, and payment cannot proceed until the supplier issues a corrected version.
For a business running a high volume of invoices, a backlog of rejections can stretch into weeks of reissuing and chasing payment. The FTA also uses e-invoicing data to cross-reference VAT returns and corporate tax filings, so gaps between what is issued and what is reported are easier to catch than they were on paper.
Are there any exceptions to the UAE e-invoicing rules for suppliers?
A few situations carry different rules for e-invoicing.
- Transactions between members of the same VAT group fall within the mandate, but a transitional relief applies for 24 months from 2027, after which standard rules kick in.
- Certain financial services transactions and specific airline services have limited exceptions.
- Advance payments and retention billing (common in contracting and real estate) come with their own field-level rules, including linking an advance invoice to the final one issued later.
- Business transactions are excluded from the UAE e-invoicing requirements when they are carried out by a government entity in its sovereign capacity and are not performed in competition with the private sector.
None of these exceptions removes a supplier's core obligation to comply with the mandate. They affect how specific transactions are invoiced, not whether the mandate applies.
Conclusion
Getting supplier responsibilities right under UAE e-invoicing is as much about timing and infrastructure as it is about paperwork. A business needs its ASP appointed, its data fields mapped correctly and its team trained before its deadline arrives, not after. TallyPrime has achieved Full Member status with OpenPeppol and is going through Ministry of Finance accreditation as an ASP, which gives businesses already using it a path to generate and transmit compliant invoices without switching systems.
