Business Central ships with a generic VAT engine, but it does not know the GCC. There is no out-of-the-box UAE FTA VAT 201 box mapping, no KSA ZATCA return layout, no Bahrain NBR or Oman/Qatar VAT logic, and no designated-zone or RCM handling tuned to Gulf rules. Finance teams end up patching this with spreadsheets and manual journals — which is exactly what tax authorities query during an audit.

This is a build-to-order extension, not an instant AppSource download. ECOSIRE designs, builds, installs and supports it as a per-tenant AL extension on your own Business Central environment (cloud SaaS or on-prem). We scope your country footprint and chart of accounts first, then deliver a tested extension with documentation and handover.

Technically it is delivered as table and page extensions over the standard VAT Posting Setup and VAT Entry, driven by per-country rule packs (rate, RCM, exempt, zero-rated, out-of-scope). Event subscribers on posting routines apply reverse-charge and import VAT correctly without forcing users to remember which combination applies. A return-preparation page maps VAT entries to each authority's return boxes (UAE VAT 201, KSA, Bahrain, Oman, Qatar), and an export routine generates the FAF/audit file format relevant to your jurisdiction. Dedicated permission sets restrict who can prepare versus submit, and the optional job queue entry refreshes return figures on a schedule. Figures are exposed via the BC REST/OData API so you can drive Power BI or Power Platform dashboards from the same numbers your accountants file.

You own the extension and the data. ECOSIRE provides the AL source, an upgrade path tied to Microsoft's release waves, and ongoing support so rule changes (new emirate zones, ZATCA phases, rate moves) are handled without re-platforming.