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ATSII - Spanish Immediate Information Supply System (SII) for Dolibarr

mp23914d20260325124653

SII module for Dolibarr enabling automatic submission of issued and received invoices to the Spanish Tax Agency (AEAT). NIF/CIF and EU VAT (VIES) verification tools. Aggregated Books query (Model 303). Automatic VAT calculation for intra-community operations, special regime management, exemptions, equivalence surcharge, early payment discounts and simplified invoices. PFX digital certificate.

1,650.00 €
Excl. tax

  • Author EasySoft Tech SL
  • Module version 1.1.0
  • Release date 03/25/2026
  • Access to download and updates 2 years
  • Compatibility Dolibarr V16+   -   PHP7.4 - 8.2
  • Last update 03/25/2026 02:13 PM

More info...

ATSII — Spanish Immediate Information Supply System (SII) for Dolibarr

ATSII is a professional Dolibarr module that implements the Immediate Information Supply System (SII - Suministro Inmediato de Información) required by the Spanish Tax Agency (AEAT). It enables automatic submission of invoicing records (issued and received invoices) through AEAT's SOAP web services, complying with Royal Decree 596/2016.

Designed for large companies, taxpayers enrolled in REDEME (Monthly VAT Refund Registry), and any business voluntarily opting into the SII system. Developed by EasySoft Tech S.L.

⚖️ Who is required to use SII?

  • 📋 Large companies (turnover exceeding €6,010,121.04)
  • 📋 VAT groups
  • 📋 REDEME registrants (Monthly VAT Refund Registry)
  • 📋 Voluntary adoption: any company may opt into SII

📋 Feature Matrix

Feature Detail Status
📤 Issued invoice submission Create, modify and delete in the SII Issued Invoices Registry ✅
📥 Received invoice submission Create, modify and delete in the SII Received Invoices Registry ✅
🇪🇺 Intra-community operations (issued) Automatic detection of exempt intra-community deliveries (art. 25 LIVA, cause E5) ✅
🇪🇺 Intra-community operations (received) Automatic calculation of Supported VAT and Deductible VAT from product's domestic rate. Regime key '10' auto-assigned. Compliant with AEAT FAQ section 4.5 ✅
🔑 19 regime keys (issued) General, export, second-hand goods, gold, travel agencies, cash basis, IPSI/IGIC, OSS, leasing... ✅
🔑 15 regime keys (received) General, REAGP, second-hand goods, gold, travel agencies, entity groups, cash basis, intra-community... ✅
🛡️ 6 exemption causes E1 (art. 20), E2 (art. 21 export), E3 (art. 22), E4 (art. 23-24), E5 (art. 25 intracom.), E6 (other) ✅
🔄 Exemption inheritance Exemption configured on third party auto-inherited by all invoices for that party ✅
🔐 PFX digital certificate PKCS#12 (.pfx/.p12) support with automatic PEM conversion ✅
📊 SII tracking fields Submission status, AEAT CSV code, submission date, SII invoice ID, last output ✅
📄 Corrective invoices (R1-R5) Automatic detection of credit notes and replacements. Types R1-R5, rectification by differences (I) or substitution (S), original invoice reference and ImporteRectificacion ✅
🧾 Simplified invoices (F2) Automatic detection for third parties marked as simplified invoice ✅
💰 Early payment discount Correct application to base, VAT, surcharge and deductible quota ✅
📊 Equivalence surcharge Full support for invoices with equivalence surcharge (localtax1) ✅
🔍 AEAT invoice query Direct query of issued and received invoice status at the AEAT SII portal ✅
📑 SII tab on invoices Dedicated tab with modern design: extrafields in banner, gradient buttons, interactive JSON viewer (jsoneditor) with two columns and styled headers ✅
🆔 Verify NIF/CIF (AEAT) NIF/CIF verification against AEAT VNifV2 service. Single and batch mode (up to 50). Color-coded status badges ✅
🇪🇺 Verify EU VAT (VIES) Intra-community VAT number verification against EU VIES system. No certificate required. Single and batch mode ✅
📊 Aggregated Books (Mod. 303) Query SII aggregated books directly from AEAT, useful as reference for Model 303. Only for mandatory SII taxpayers ✅
🏷️ Auto badge on third parties Automatic NIF/CIF (AEAT) and VAT-ID (VIES) verification when opening third party card. Color-coded badges. "Correct" button to update name from census ✅
🎨 Modern dashboard Home page with interactive cards, SVG icons, feature lists and entrance animations ✅
🔀 Test / production environment Configurable AEAT environment selector (test portal or production) ✅
📡 Secure SOAP communication TLS transmission with client certificate for AEAT authentication ✅
🌐 Multi-language support Spanish, Catalan, Galician and Basque ✅

🚀 Automatic Submission to SII

  1. 📋 Select invoices: From dedicated issued or received invoice lists, filtered by submission status.
  2. 🔧 Choose operation: Create (first submission), modify (correction) or delete (cancellation).
  3. 🔏 Sign and submit: The module automatically builds the SOAP XML, signs it with the digital certificate and submits to AEAT.
  4. 📥 AEAT response: Status (Correct, Partially Correct, Incorrect), CSV response code and full details are stored.
  5. 📊 Invoice tracking: The SII tab on each invoice shows all submission info.

🇪🇺 Intra-Community Operations — Complete Management

📤 Issued invoices to EU customers (intra-community deliveries)

  • ✅ Automatic detection of intra-community customers by country and VAT ID
  • ✅ Automatic E5 exemption (art. 25 LIVA) when VAT is 0
  • ✅ Correct Subject > Exempt XML structure (avoids AEAT error 1219)

📥 Received invoices from EU suppliers (intra-community acquisitions)

Compliant with AEAT FAQ section 4.5:

  • ✅ Regime key '10' automatically assigned for intra-community acquisitions
  • ✅ IDType '02' (VAT-ID) with the Intra-Community Operator Number
  • ✅ Automatic Supported VAT calculation from product's domestic VAT rate
  • ✅ Automatic Deductible VAT = Supported VAT
  • ✅ Operation type S1 (not S2/Reverse Charge) as per regulations
  • ✅ Warning for products without configured VAT rate
  • ✅ Transparent: Dolibarr invoice is not modified

🆔 Verification Tools

  • 🔍 Verify NIF/CIF (AEAT): NIF/CIF verification against AEAT VNifV2 service. Single and batch mode (up to 50). Color-coded status badges (identified, similar, cancelled, not found). Uses the module's digital certificate.
  • 🇪🇺 Verify EU VAT (VIES): Intra-community VAT number verification against the European Commission VIES system. No certificate required. Single and batch mode. 28 countries supported.
  • 📊 Aggregated Books (Model 303): Query SII aggregated books directly from AEAT, useful as reference for Model 303 (Output VAT and Input VAT).

🔐 Digital Certificate

  • ✅ PKCS#12 certificates (.pfx, .p12) from FNMT, AEAT or recognized CAs
  • ✅ Automatic PEM extraction of private key and public certificate
  • ✅ TLS communication with client certificate authentication
  • ✅ Certificate info display: subject, issuer, validity dates, expiration alerts

📋 System Requirements

  • 🖥️ Dolibarr: Version 16.0 or higher
  • 🐘 PHP: Version 7.4 or higher
  • 🔧 Required PHP extensions: php-soap, php-openssl, php-curl, php-xml
  • 🔐 Digital certificate: Valid AEAT certificate in PFX/P12 format

💰 Pricing & license

The module is distributed under GPL v3 license. Includes updates and technical support during the license period. Developed by EasySoft Tech S.L.

✉️ Support

✉️ info@easysoft.es | 🌐 www.easysoft.es




If you think this module is a fork of another one (published after the first one) or violates some terms or conditions of use (for users or vendors), you can make a report at dolistore@dolibarr.org