The Spanish version is the authoritative reference. View in Spanish

GUF Format

Per-country reference of the GAP analysis: the field-by-field mapping between Gosocket's GUF format and each tax authority's fiscal format. It is the same content as the implementation Excel workbooks, published as a navigable reference: document model, field specification per group, and value catalogs.

Peru and Paraguay already use the Unified GAP format (macro groups TRN_SALES / TRN_WITHHOLDING / TRN_TRANSPORT, with Spanish and English texts). Colombia and Argentina are published from their historical GAPs, each with its own structure, while they migrate to the unified format.

Countries

🇦🇷 ArgentinaHistorical GAPFields per web service (WSFEV1, WSMTXCA, WSFEXV1, WSCT, WSSEG, dispatch notes) plus the GUF applicability matrix per service and the ARCA/ARBA catalogs.🇨🇴 ColombiaHistorical GAPDIAN generic DTE with applicability per document type, Health-sector extension and UBL 2.1 catalogs.🇵🇪 PeruUnified GAPSales, withholdings and transport before SUNAT in the unified format, with ES/EN texts and reference catalogs.🇵🇾 ParaguayUnified GAPSales and transport before DNIT in the unified format, with ES/EN texts and reference catalogs.