AI Software Development Product
Wahabooks — Invoicing and Accounting That Stays ZATCA-Compliant by Construction
A bilingual, AI-orchestrated finance suite built by Oasis Systems to run its own back office — now available to run yours. Sales, Purchases, and Accounting in one ledger, with ZATCA QR and XML generated automatically on every invoice.
ZATCA Phase 2 e-invoicing has been in full enforcement since July 2026 — spreadsheets and generic bookkeeping tools weren't built for a bilingual, QR-stamped, hash-chained invoicing regime. Bolting compliance on after the fact means brittle add-ons, manual QR generation, and VAT formulas nobody re-checks once the person who wrote them leaves.
AI drafts, deterministic code posts
Type or upload an invoice request in Arabic or English and the AI prefills a draft — but every riyal that reaches the ledger is computed, numbered, and QR-stamped by tested code, never reasoned by a language model.
ZATCA-compliant by construction
TLV QR and UBL 2.1 XML generated automatically on every invoice, VAT computed in integer halalas with no floating-point drift, and gap-free sequential numbering enforced at the database level.
Self-hosted or fully managed
One codebase runs both ways — on your own infrastructure with a perpetual, offline-verified licence, or as a fully managed, per-tenant SaaS instance we operate for you.
Talk to us about your next project
Whether you need a security assessment, a managed infrastructure partner, or a custom AI tool, our team can help you scope the right approach.