ZATCA E-Invoicing and SAP: What Your ERP Team Needs to Know in 2026

ZATCA E-Invoicing and SAP: What Your ERP Team Needs to Know in 2026

JAuthor: Jonathan Olmedo
4/19/2026

For businesses operating in Saudi Arabia, the Integration Phase of e-invoicing is no longer a future roadmap item. It is a live, enforced regulatory reality. Wave 23 recently brought businesses with revenues exceeding SAR 750,000 into the fold, requiring full Fatoora platform integration by March 31, 2026.

The next major milestone is Wave 24. With a lower revenue threshold of SAR 375,000, this wave enforces compliance by June 30, 2026. This deadline is bringing thousands of additional Saudi enterprises into a mandatory scope that carries significant stakes. Non-compliance is not a minor administrative hurdle; it can result in penalties of up to SAR 50,000 per violation.

If your organization runs on SAP, the most critical realization for 2026 is that ZATCA Phase 2 is not a simple tax configuration change. It is a complex ERP integration project. It requires a fundamental shift in how your SAP system communicates with external government portals, turning invoice issuance into a real-time data exchange. This transformation impacts everything from master data governance to middleware architecture.

What ZATCA Phase 2 Requires From Your SAP System

Phase 2 or Integration Phase is about your SAP system having the capability to make API calls directly to ZATCA’s Fatoora portal. This new model replaces Phase 1 in which generating and storing a QR code was enough.

Technical Requirements for SAP Teams

Compliance will require your SAP functional and technical leads to consider a few fundamental elements: