ZATCA E-Invoicing for SMEs: 2026 Requirements and 2027 Deadlines
Understand ZATCA e-invoicing requirements for Saudi SMEs, including Phase 1, Phase 2 integration, Wave 25 criteria, the February 2027 deadline and compliance preparation.
Table of Contents
Electronic invoicing is a requirement for VAT-registered businesses in Saudi Arabia. The Zakat, Tax and Customs Authority (ZATCA) introduced e-invoicing in two phases: Phase 1, which focused on generating and storing electronic invoices, and Phase 2, which adds integration with ZATCA’s FATOORA platform.
For small and medium-sized enterprises (SMEs), the key is to understand which requirements apply to their business and whether ZATCA has notified them of an integration deadline. There is no single Phase 2 deadline that applies to every SME.
Understanding ZATCA E-Invoicing and Why It Matters
ZATCA e-invoicing replaces manually prepared invoices and notes with invoices generated electronically through compliant solutions. The framework covers invoices, credit notes and debit notes, with requirements that depend on the transaction and document type.
Phase 1: Generation
Phase 1 came into effect on 4 December 2021. Businesses in scope must generate and store electronic invoices and notes using a compliant solution. Handwritten invoices and invoices prepared using text-editing software are not compliant electronic invoices.
Phase 2: Integration with FATOORA
Phase 2 began on 1 January 2023 and is being introduced in waves. Businesses notified by ZATCA must integrate their e-invoicing solution with the FATOORA platform by the deadline specified for their wave.
The technical requirements include structured invoice data and specific processes for clearance or reporting. Standard tax invoices generally require clearance before they are shared with the buyer, while simplified tax invoices are reported to ZATCA within 24 hours.
ZATCA E-Invoicing: Phase 1 vs Phase 2
| Feature | Phase 1: Generation | Phase 2: Integration |
|---|---|---|
| Effective date | 4 December 2021 | Began 1 January 2023 |
| Main objective | Generate and store electronic invoices | Integrate the e-invoicing solution with ZATCA’s FATOORA platform |
| Invoice generation | Generate invoices and notes using a compliant solution | Generate structured invoices that meet applicable technical requirements |
| System integration | No direct FATOORA integration required under Phase 1 | Integration required for businesses notified by ZATCA |
| Invoice format | Electronic invoices generated through a compliant solution | Structured invoice data in the required format |
| Clearance and reporting | Focuses on electronic invoice generation and storage | Standard tax invoices generally require clearance; simplified tax invoices are reported within 24 hours |
| Implementation deadline | Applicable from 4 December 2021 | Assigned individually through ZATCA’s implementation waves |
| SME requirement | Generate and store compliant electronic invoices | Integrate by the deadline specified in the applicable ZATCA notification |
Key takeaway: Phase 1 focuses on generating and storing electronic invoices, while Phase 2 adds integration with FATOORA. SMEs should confirm their specific Phase 2 wave and deadline through official ZATCA communications.
Key Deadlines for SMEs: ZATCA Compliance Timeline
Phase 2 deadlines are assigned by wave. Businesses should confirm whether they have received a ZATCA notification rather than relying on a general revenue range or an old timeline published for 2025.
Wave 25: 1 February 2027
In its Wave 25 announcement, ZATCA specified that the wave covers taxpayers whose VAT-taxable revenues exceeded SAR 187,500 in any one of the calendar years 2022, 2023, 2024 or 2025. The integration deadline for this wave is 1 February 2027.
This criterion should not be interpreted as a universal deadline for all SMEs. If your business falls within the announced criteria, check the official announcement and any communication received from ZATCA to confirm the applicable requirements.
How SMEs should check their deadline
- Review notifications and communications from ZATCA.
- Check the applicable wave announcement and its revenue criteria.
- Confirm whether your business is already subject to Phase 2 integration.
- Work backwards from the confirmed deadline to allow time for solution selection, integration, testing and onboarding.
Do not rely on outdated articles that list 2025 deadlines as if they are still upcoming.
Technical Requirements SMEs Should Know
A compliant implementation needs to account for the invoice format, required data, security controls and the appropriate submission process.
- Structured data: ZATCA’s technical framework is based on structured XML invoice data. A PDF by itself is not a substitute for the required structured invoice data.
- Invoice display: Required invoice information shown to the buyer must be in Arabic. English may also be included.
- Clearance and reporting: Standard tax invoices and related notes generally follow the clearance process. Simplified tax invoices and related notes are subject to reporting within 24 hours.
- Integration: Businesses in Phase 2 must use a solution that meets ZATCA’s technical requirements and integrates with FATOORA as applicable.
- Testing: Validate invoice data and test the end-to-end workflow before switching to production.
The exact requirements depend on the document type and the business’s circumstances. Refer to ZATCA’s current technical documents and guidelines when planning implementation.
Challenges SMEs Face with ZATCA E-Invoicing
Connecting existing business systems
SMEs may create invoices through accounting software, ERP platforms, POS systems or custom applications. The chosen solution needs to fit the existing process and handle the required invoice data correctly.
Maintaining accurate invoice data
Missing fields, invalid values and inconsistent customer or tax information can cause validation issues. Reviewing data quality early can reduce avoidable rework.
Understanding clearance and reporting
The workflow differs by invoice type. Teams need to know which documents require clearance and which must be reported, as well as how to respond to errors or status changes.
Preparing before the deadline
Integration can involve configuration, mapping, testing and internal coordination. Starting early gives the business time to resolve issues before its mandated deadline.
How Complyance Can Support ZATCA E-Invoicing
Complyance provides e-invoicing integration capabilities intended to help businesses connect their existing systems with country-specific e-invoicing requirements. When evaluating a solution, SMEs should confirm that it supports the document types and workflows they need, and that it can meet the applicable ZATCA requirements.
Before selecting a provider, assess:
- Compatibility with your accounting system, ERP, POS or custom application.
- Support for the relevant Saudi invoice and credit/debit note types.
- Validation and error-handling capabilities.
- Visibility into document status and processing outcomes.
- Support for sandbox testing, onboarding and production readiness.
- The implementation and support arrangements available for your business.
Confirm the current product scope and implementation approach with Complyance before making a purchasing or deployment decision.
Steps to Prepare for ZATCA Compliance
- Confirm your scope and deadline. Check your VAT status, ZATCA communications and the applicable Phase 2 wave.
- Review your invoicing process. Identify where invoices are created, which systems hold the required data and who owns the process.
- Choose a suitable solution. Evaluate technical fit, required invoice types, integration options and support.
- Map and validate data. Check tax identifiers, buyer and seller details, line items, totals and other required fields.
- Test the workflow. Use the appropriate test environment to validate documents and integration behavior before production.
- Prepare your team. Document how to handle rejections, exceptions, status checks and changes to the invoicing process.
- Monitor ongoing compliance. Keep the solution updated and review ZATCA announcements for new requirements or deadlines.
Conclusion
ZATCA e-invoicing compliance is not defined by a single deadline for every SME. Phase 1 requirements are already in effect, while Phase 2 integration is being introduced through waves. Businesses should verify their own notification and applicable deadline, understand the difference between invoice clearance and reporting, and allow enough time for integration and testing.
Use ZATCA’s official resources as the source of truth, and confirm that your e-invoicing solution supports the requirements that apply to your business.
Official Resources
Frequently Asked Questions
E-invoicing applies to VAT-registered persons and other parties within ZATCA’s scope. Whether and when a business must complete Phase 2 integration depends on the applicable requirements and wave notification.
No. Phase 2 is being rolled out in waves, and the integration deadline depends on the relevant ZATCA announcement and notification. SMEs should not assume that a deadline published for another wave applies to them.
ZATCA announced an integration deadline of 1 February 2027 for Wave 25. The wave covers taxpayers whose VAT-taxable revenues exceeded SAR 187,500 in any one of 2022, 2023, 2024 or 2025. Businesses should verify the criteria against ZATCA’s official announcement.
Standard tax invoices generally need to be cleared by ZATCA before being shared with the buyer. Simplified tax invoices are generally reported to ZATCA within 24 hours.
A PDF alone does not replace the structured invoice data required by the framework. Businesses should follow ZATCA’s technical specifications for the applicable document type and process.
Required invoice information displayed to the buyer must be in Arabic. English can be included in addition.
Confirm the applicable deadline, review existing systems and invoice data, select a compatible solution, complete data mapping and testing, and prepare a process for handling errors and document statuses.
About the Author
Ajith Kumar
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