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5 article(s) tagged with this topic.
Published · 31 August 2026 · 12 min read
How the ECDSA signature, the previous-invoice hash, the UUID counter, and C14N canonicalization actually fit together on a ZATCA Phase 2 invoice — and what to audit in any vendor solution.
Read article →Published · 31 August 2026 · 7 min read
Everything Saudi businesses need to know about ZATCA Phase 2 (Fatoorah) e-invoicing: who must comply, when, what XML and ECDSA mean for your invoices, the wave schedule, and how to pick an integration partner.
Read article →Published · 31 August 2026 · 12 min read
A full breakdown of the ZATCA Phase 2 wave schedule by revenue threshold, sector-specific rules, exemption categories, cost ranges for SaaS vs self-build, and a 6-month integration timeline.
Read article →Published · 31 August 2026 · 10 min read
A field-by-field walkthrough of the UBL 2.1 XML schema used by ZATCA Phase 2: namespaces, mandatory fields, invoice vs debit note vs credit note, line items, tax totals, and common validation errors.
Read article →Published · 25 July 2026 · 1 min read
Phase 1 is local generation with a 5-tag QR. Phase 2 adds Fatoora integration, XML, cryptographic stamps, and tighter deadlines for SMEs.
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