Invoice Requirements in Spain: Legal Rules for 2026

TL;DR: Spanish invoices must include NIF/CIF, sequential numbering within correlated series, and IVA at 21%, 10%, or 4%. SII real-time reporting is mandatory for many businesses, and VeriFactu anti-tampering requirements are rolling out -- Canary Islands use IGIC instead of IVA.

Spain combines EU VAT rules with Agencia Tributaria (AEAT) administration and accelerating digital controls such as VeriFactu-style invoice traceability and SII (Immediate Supply of Information) reporting for many VAT payers. Your factura is the anchor for buyer deductions, IVA returns, and audit defence. Canary Islands, Ceuta, and Melilla introduce IGIC and IPSI wrinkles. This guide is 2026-oriented general information—not legal advice for agricultural, second-hand, or complex real estate cases. Canary IGIC and Ceuta/Melilla IPSI flows need templates distinct from peninsula IVA—do not reuse footers across territories.

Required fields

Full invoices generally show issuer name, NIF/CIF, address; customer identification; invoice number within a correlated series; dates of issue and, where applicable, supply; description of goods or services; taxable base; IVA rate and IVA amount; withholdings (retenciones) when applicable; total payable; and discounts stated transparently. Simplified invoices exist for small amounts—verify current thresholds in AEAT guidance. Credit notes must reference the original document and adjust IVA correctly. Intra-EU reverse charge requires legal wording on B2B documents.

Tax rules (VAT/GST/sales tax rates)

The general IVA rate is 21%. Reduced 10% and super-reduced 4% rates apply to enumerated supplies such as certain food, transport, hospitality, and medical items per law. Exempt activities must not carry recoverable IVA improperly. Exports and qualifying intra-EU supplies may be zero-rated with evidence requirements. Mixed supplies need clear line separation so SII XML mappings stay faithful to reality. Canary IGIC and peninsula IVA should never share numbering series without strong controls—territorial errors are expensive to unwind.

Language requirements

Spanish is the practical default for domestic trade and tax correspondence. English appears in multinational B2B; bilingual Spanish/English invoices are common. Legal references for reverse charge are typically kept in Spanish.

Digital invoicing rules

Many businesses must file SII ledgers electronically within tight windows—your invoice master data should match what you report. VeriFactu initiatives push toward software certification and anti-tamper invoice trails even when you still email PDFs. Retain source files and submission logs. B2G buyers may require FACe or other e-invoice channels. SII XML must reconcile to PDF customers see—when AP disputes arise, ledgers win over email attachments. Timestamp integrity matters when VeriFactu style controls compare issuance clocks across devices.

Invoice numbering rules

Spanish invoices must carry a numero de factura within a serie correlativa (correlated series). The numbering must be sequential and continuous within each series -- gaps are not permitted without explanation. You may maintain multiple series with prefixes (such as FA-2026-0001 for standard invoices, RC-2026-0001 for rectification invoices), but each series must be internally continuous. Facturas rectificativas (corrective invoices, equivalent to credit notes) should use a separate series and must reference the original invoice. The Reglamento de Facturacion (Royal Decree 1619/2012) specifies that numbering must allow determination of the chronological order of issuance. For businesses operating in both peninsula Spain and the Canary Islands (where IGIC applies instead of IVA), maintain completely separate numbering series -- mixing territorial tax regimes within one series invites costly errors. SII-reported invoices are identified by their series and number in the AEAT ledger, so corrections require formal rectification invoices rather than informal amendments.

Common exemptions and special cases

The regimen simplificado (simplified regime) is available to certain small businesses and allows VAT to be calculated on a modular basis rather than on actual invoices. Recargo de equivalencia is a surcharge regime for retail traders who buy from wholesalers -- the wholesaler charges an additional surcharge (currently 5.2% for standard-rate goods, 1.4% for reduced, 0.5% for super-reduced), and the retailer does not file IVA returns or issue IVA invoices to consumers. Simplified invoices (facturas simplificadas) can be issued for amounts up to EUR 400 (or EUR 3,000 for specific activities like retail, hospitality, and transport) -- these require fewer buyer details than full invoices. Reverse charge (inversion del sujeto pasivo) applies to many cross-border B2B services, certain domestic construction activities, and specific product categories -- the invoice must state the legal basis and not show IVA. Intra-Community supplies are exempt (zero-rated) when goods leave Spain to a VAT-registered buyer in another EU state, verified through VIES. Canary Islands (IGIC) uses rates of 0%, 3%, 7% (general), and 15% (special) rather than peninsular IVA -- never apply IVA rates to Canary Islands supplies. Ceuta and Melilla apply IPSI (a local production and import tax) rather than IVA or IGIC. The regimen especial del criterio de caja (special cash-basis regime) allows certain SMEs to account for IVA on a cash basis, with specific invoice annotation requirements.

Record retention requirements

Spanish tax law requires retention of invoices and related records for the statute of limitations period, which is generally four years from the date the tax return for the relevant period was filed. However, for invoices relating to real property, the period extends to cover the adjustment period for capital goods deductions (up to ten years for real estate). For commercial law purposes, the Codigo de Comercio requires retention of business documentation for six years from the last entry. In practice, the longer period governs. SII data is retained by AEAT in its systems, but you must also maintain your own records -- SII submission does not substitute for your own archive obligations. Electronic records must be stored in a manner that ensures authenticity, integrity, and legibility for the full retention period. When VeriFactu requirements apply, your software must maintain immutable records with chain hash integrity that auditors can verify. Destroying records before the applicable retention period can result in penalties and adverse presumptions during audits.

E-invoicing status

Spain operates two major digital invoicing initiatives. SII (Suministro Inmediato de Informacion) has been mandatory since July 2017 for large companies, VAT groups, and businesses under the monthly return regime (REDEME) -- these taxpayers must report invoice details to AEAT electronically within four calendar days of issuance. SII effectively creates a near-real-time ledger of all invoices at AEAT. VeriFactu is a newer initiative requiring certified invoicing software to generate invoices with anti-tampering features: each invoice record includes a hash chain linking it to the previous record, a QR code for verification, and an optional automatic submission to AEAT. VeriFactu applies to invoicing software used by businesses not already in the SII system. For B2G invoicing, the FACe platform (and regional equivalents like e.FACT in Catalonia) require structured electronic invoices in Facturae format for public administration contracts. Spain is also preparing for the EU ViDA requirements, which will bring additional structured e-invoicing obligations for intra-Community transactions. Businesses should ensure their software is VeriFactu-certified when required and that SII reporting is integrated with their invoicing workflow rather than treated as a separate manual process.

Penalties

AEAT can impose surcharges, penalties, and interest for incorrect IVA, late SII filings, and non-compliant invoices. Late filing surcharges (recargos por declaracion extemporanea) are 1% of the tax due per month of delay for the first twelve months, plus 15% after twelve months, plus interest from month thirteen onward. Late SII reporting penalties can reach up to 0.5% of the invoice amount reported late, with a minimum of EUR 300 and a maximum of EUR 6,000 per quarter. Incorrect invoices that affect the tax base carry penalties of 50% to 150% of the understated tax amount, depending on severity and intent. Failure to issue invoices carries a penalty of 1% of the amounts not invoiced for the quarter, with a minimum of EUR 300. For VeriFactu non-compliance (using non-certified software or tampering with records), penalties of EUR 50,000 per fiscal year may apply for software producers, and general tax fraud penalties apply to users. Criminal consequences attach to fraudulent invoicing in egregious cases (tax fraud exceeding EUR 120,000 per tax and period). Retenciones mis-posted on recurring SaaS invoices multiply quickly -- run quarterly template reviews when withholding rates change.

Assign an owner who reconciles SII submissions to customer-facing PDFs monthly. For Canary or Ceuta operations, maintain separate numbering series so peninsula auditors never inherit IGIC assumptions by mistake. Train teams never to edit PDF invoices after SII submission -- corrections belong in formal facturas rectificativas.

FAQ

What is the difference between SII and VeriFactu? SII is a mandatory near-real-time reporting system for large companies: you submit invoice data to AEAT within four days of issuance. VeriFactu is a separate requirement for invoicing software used by businesses not in SII: it mandates that the software generates invoices with anti-tampering features (hash chains, QR codes) and optionally transmits data to AEAT. A business in SII does not need VeriFactu-certified software (and vice versa), though some may eventually overlap as Spain's digital framework evolves.

Do the Canary Islands follow the same rules as mainland Spain? No. The Canary Islands apply IGIC (Impuesto General Indirecto Canario) instead of IVA, with different rates (general rate of 7% versus IVA's 21%). Invoices for Canary Islands supplies must show IGIC, not IVA. Ceuta and Melilla apply IPSI instead. You should maintain separate invoice templates and numbering series for each territory and never apply peninsular IVA rules to Canary, Ceuta, or Melilla transactions.

When do I need to use a factura simplificada versus a full factura? A factura simplificada can be issued when the total amount (including IVA) does not exceed EUR 400 in general, or EUR 3,000 for certain activities listed in the Reglamento de Facturacion (retail, hospitality, transport, parking, etc.). The simplified invoice requires fewer buyer details but still needs your NIF, date, description, IVA rate, and total. Above these thresholds, a full invoice with complete buyer identification is mandatory.

How quickly must I report invoices to SII? If you are in the SII regime, you must report issued invoices to AEAT within four calendar days of the invoice date (excluding Saturdays, Sundays, and national holidays). For received invoices, the deadline is four calendar days from the accounting record date, but before the 16th day of the month following the tax period in which the input tax is deducted. These tight deadlines mean your invoicing and SII reporting must be closely integrated.

Template link

Start from our Spanish invoice template for IVA-ready layouts. Use the invoice tax compliance guide and tax rate lookup tool. Official sources include the Agencia Tributaria and IVA information. Join InvoiceQuickly early access to standardise Spanish invoicing alongside your EU stack.