Invoice Requirements in Spain: Legal Rules for 2026

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.

Penalties

AEAT can impose surcharges, penalties, and interest for incorrect IVA, late SII filings, and non-compliant invoices. Serious or repeated failures increase exposure; criminal consequences attach to fraudulent invoicing in egregious cases. 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; when XML and PDF diverge, fix the template root cause instead of issuing one-off emails. For Canary or Ceuta operations, maintain separate numbering series so peninsula auditors never inherit IGIC assumptions by mistake.

Train customer service teams never to edit PDF invoices after SII submission—corrections belong in formal notas with audit-friendly trails. When VeriFactu-style controls apply, test clock synchronisation across laptops and POS devices so timestamp disputes do not cascade. For businesses blending goods and services, segregate invoice templates so SII mappings stay clean even when customers demand one consolidated PDF.

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.