SII

Spain's near-real-time VAT reporting system run by the AEAT. Invopop normalises invoices to GOBL with the es-sii-v1 addon and submits the issued and received registers to the AEAT shortly after each invoice is recorded.

Implementation docs

Issued and received registers

Invopop builds the data for both the issued and received invoice registers that SII reports to the AEAT.

AEAT SII submission

Invoice data is converted into the XML payloads submitted to the AEAT SII web service for near-real-time reporting.

Document and regime coding

Each invoice is assigned the SII codes it expects, including document types F1 to F6 and special regime codes.

Customer identity mapping

Customer identification is mapped to the SII identity type codes so non-standard tax IDs are reported correctly.

Corrective handling

Rectified invoices and credit or debit notes are mapped to the correct SII correction types.

GOBL es-sii-v1 engine

Reporting is powered by Invopop's open-source es-sii-v1 addon, kept aligned with current AEAT specifications.

Facturae

Spain's structured-XML invoice format for the public sector and private B2B. Invopop generates Facturae 3.2.2 with the es-facturae-v3 addon, applies the XAdES signature, and routes invoices to FACe, its regional equivalents, and FACeB2B.

Implementation docs

Facturae 3.2.x XML

Generated from GOBL via the es-facturae-v3 addon and the gobl.facturae library.

XAdES signature

Applied by Invopop using its own certificate or the supplier's signing flow.

Portal routing

Routes to FACe, regional portals such as e-FACT in Catalonia, and FACeB2B for private B2B.

Crea y Crece ready

The same output covers the upcoming B2B reform once the regulation is in force.

VERI*FACTU

Spain's billing-software requirement enforced by the AEAT. Invopop submits each invoice record to the AEAT in real time or keeps a hash-chained log, provides the certified-software compliance statement, and prints the mandatory QR code.

Implementation docs

VeriFactu XML

Compliant XML is attached to the silo entry and submitted automatically to the AEAT as invoices are generated.

Mandatory QR code

The QR per AEAT specifications is embedded on every PDF, or can be fetched to generate your own.

Hash chain

Each record is linked to the previous one, and Invopop manages the chain for legal storage.

Supplier onboarding

A registration link handles certificate upload, identity verification, and agreement signing.

White-label issuance

Issue on behalf of clients or directly as your own organisation, in VeriFactu or Non-VeriFactu mode.

TicketBAI

The invoice-signing regime for Spain's Basque Country, certified across Álava, Bizkaia, and Gipuzkoa. Invopop signs and chains each invoice, submits it to the correct provincial authority in real time, and prints the mandatory QR and TBAI identifier.

Implementation docs

Per-province endpoints

Submits to Bizkaia, Gipuzkoa, or Araba based on the supplier's territory.

Real-time submission

Chained XML is sent to the foral tax authority as invoices are issued.

Mandatory QR + TBAI

The generated PDF carries the QR code and TBAI identifier, also available via API.

No supplier certificate

Invopop signs with its own sello de empresa, so suppliers upload nothing.

PDF

The universal visual invoice that works for any recipient. Invopop renders a branded, multilingual PDF from the same GOBL source, with every field the destination country requires, locale-correct formatting, and built-in email or webhook delivery.

Implementation docs

Every field, every format

PDFs include every field the destination country requires, automatically.

Localized in 10+ languages

Issue invoices in English, Spanish, German, Italian, Portuguese, Arabic, Greek, Polish, and more, with locale-correct date and number formatting.

Built-in email delivery

Invoices are emailed directly to clients from Invopop's domain or your own.

Invoices, credit notes and more

Produce standard invoices, proforma invoices, credit notes, corrective documents, and receipts.

Customisable templates

Templates support logo configuration, standard page layouts, and per-locale formatting.

Built on GOBL

Rendered from GOBL, the open-source invoicing standard, for full transparency and no vendor lock-in.