Spain VAT Invoice Requirements: Mandatory Fields & Factura Types

Spain's VAT invoice requirements are defined by Real Decreto 1619/2012, the regulation that governs invoice content, format, and issuance obligations. The Agencia Estatal de Administración Tributaria (AEAT) enforces these rules, and non-compliance can trigger penalties during tax inspections or block IVA deductions for the recipient.

At minimum, a Spanish invoice must contain:

• Supplier's and customer's full legal name and tax identification number (NIF for individuals, CIF for entities)
• Sequential invoice number within one or more pre-defined series
• Issue date
• Description of the goods or services supplied
• Tax base (base imponible) for each applicable IVA rate
• IVA rate and amount charged, broken out separately for each rate applied
• Total invoice amount

Spain applies three IVA rates: the general rate of 21%, a reduced rate of 10% (covering food products, passenger transport, hospitality, and others), and a super-reduced rate of 4% (essential goods such as bread, milk, books, and medicines). When a single invoice includes items taxed at different rates, each rate must appear on its own line with a separate tax base and tax amount. Lumping different rates together on one line is a compliance failure.

Spanish tax law recognizes three invoice types, each with distinct rules:

• Factura completa (full invoice) is the default. It must include every mandatory field listed above and is required for most B2B transactions.
• Factura simplificada (simplified invoice) is permitted for B2C transactions up to EUR 400, or up to EUR 3,000 in specific sectors including retail, hospitality, and transport. It relaxes several field requirements, most notably by not requiring the customer's identity.
• Factura rectificativa (corrective invoice) is the legally mandated mechanism for correcting errors or modifying data on a previously issued invoice. Issuing a new "replacement" invoice without following the rectificativa procedure does not satisfy Spanish law.

These rules apply broadly across Spain's business landscape. As of 1 January 2025, there were 3.3 million economically active enterprises registered in Spain, with 54.4% operating without any salaried employees. That high concentration of sole traders and micro-businesses means simplified invoice eligibility is not a niche topic; it is directly relevant to over half of Spain's registered businesses.

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Factura Completa: Every Mandatory Field on a Full Spanish Invoice

A factura completa is the standard invoice format under Spanish tax law. Real Decreto 1619/2012 specifies every field that must appear on one. Missing even a single required element can invalidate the invoice for IVA deduction purposes, so treat the following as a non-negotiable checklist.

Issuer and Recipient Identification

Every full invoice must identify both parties with:

• Supplier's full legal name (razón social or nombre completo) and NIF/CIF
• Customer's full legal name and NIF/CIF
• Supplier's registered address (domicilio fiscal)
• Customer's registered address, required whenever the customer is a business or professional

The NIF (Número de Identificación Fiscal) serves as the tax identification number for individuals and most entities, while CIF historically identified companies. Both terms are still used interchangeably in practice, though NIF is now the official designation for all taxpayers.

Invoice Identification and Dates

• Sequential invoice number within the issuer's numbering series. Each number must be unique and follow an unbroken sequence (gaps raise flags during a tax inspection).
• Invoice issue date
• Date of supply or completion of services, if it differs from the invoice issue date. This is especially relevant when goods are delivered weeks before the invoice is raised.

Description and Financial Details

The body of the invoice must include:

• Description of the goods delivered or services rendered, specific enough that the transaction is identifiable
• Tax base (base imponible) for each applicable IVA rate
• IVA rate applied per line grouping: 21% (general), 10% (reduced), or 4% (super-reduced)
• IVA amount calculated for each rate
• Total invoice amount
• Any advance payments already received, if applicable

When a single invoice covers items taxed at different IVA rates, you cannot present a blended total. Each rate must have its own tax base, its own rate clearly stated, and its own calculated tax amount, displayed as separate line groupings. For example, an invoice that includes consulting services at 21% and certain food products at 10% needs two distinct tax breakdowns before the grand total.

IRPF Withholding on Professional Invoices

Invoices issued by autónomos (self-employed professionals) to businesses frequently involve IRPF (Impuesto sobre la Renta de las Personas Físicas) withholding. When this applies, the invoice must show the withholding rate and the withheld amount as a separate line, deducted before the final payable total. The standard withholding rate is 15%, though newly registered autónomos may apply a reduced 7% rate during their first three fiscal years. For a detailed breakdown, see our guide on IRPF withholding requirements on Spanish invoices.

Additional Fields for Special Transactions

Certain transactions trigger extra mandatory fields beyond the standard set:

• Intra-community supplies: The customer's EU VAT identification number must appear on the invoice, and the transaction should reference the applicable IVA exemption.
• Exempt supplies: The invoice must cite the specific legal provision granting the exemption (for example, the relevant article of Ley 37/1992).
• Reverse charge transactions (inversión del sujeto pasivo): A clear notation that the customer, not the supplier, is responsible for reporting the IVA.

Without these fields, the exemption or special treatment is invalid, and the supplier becomes liable for IVA that should have been handled differently.

Factura Simplificada: When Spain Allows Simplified Invoices

Spanish tax regulations allow businesses to issue a factura simplificada instead of a full invoice (factura completa) when transactions fall below certain monetary thresholds. The general ceiling is EUR 400, but for businesses operating in qualifying sectors, that threshold rises to EUR 3,000. The qualifying sectors are:

• Retail sales (ventas al por menor)
• Hospitality and restaurant services
• Passenger transport
• Parking services
• Film rentals
• Hairdressers and barbers
• Sports facilities

If your business falls within one of these categories, most of your day-to-day customer transactions will qualify for simplified invoicing.

What You Can Omit on a Simplified Invoice

The primary advantage of a factura simplificada is that you do not need to include the customer's full name, NIF/CIF, or address. This makes them practical for high-volume, low-value transactions where collecting buyer details for every sale would be impractical.

However, a simplified invoice still requires:

• Supplier's full identification (name, NIF/CIF, address)
• Sequential invoice number
• Issue date
• Description of the goods or services supplied
• Total amount including IVA
• IVA rate or rates applied

If a customer specifically requests their identification details be added (typically because they need the invoice for VAT deduction), you are obligated to issue a factura completa instead.

Completa vs. Simplificada: Field-by-Field Comparison

Field	Factura Completa	Factura Simplificada
Supplier name, NIF/CIF, and address	Required	Required
Customer name and NIF/CIF	Required	Not required
Customer address	Required	Not required
Sequential invoice number	Required	Required
Issue date	Required	Required
Description of goods/services	Required	Required
Taxable base per IVA rate	Required	Not required (total with IVA suffices)
IVA rate(s) applied	Required	Required
Total amount including IVA	Required	Required

The Critical Limitation: No Input VAT Deduction

A factura simplificada cannot be used by the recipient to deduct input VAT (IVA soportado). If your customer is a business that needs to reclaim VAT on the purchase, they must request a factura completa regardless of the transaction amount. In practice, this makes simplified invoices suitable only for B2C transactions where the buyer has no need to recover IVA.

Transactions That Always Require a Full Invoice

Certain operations are excluded from simplified invoicing entirely, no matter the amount:

• Intra-community supplies (goods or services sold to VAT-registered buyers in other EU member states)
• Supplies subject to reverse charge (where the customer, not the supplier, is the tax debtor)
• Exports outside the EU

These always require a factura completa with full buyer and seller details.

Simplified Invoices and the Equivalence Surcharge

Businesses operating under the recargo de equivalencia regime should be aware that their suppliers must include the equivalence surcharge as a separate line item on invoices. This adds fields beyond the standard IVA breakdown. For more detail on how the equivalence surcharge appears on Spanish invoices, the interaction between the surcharge rates and standard IVA categories is worth reviewing before setting up your invoice templates.

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Factura Rectificativa: How Corrective Invoices Work in Spain

When an invoice contains an error or the underlying transaction changes after invoicing, Spanish law does not allow you to simply delete and reissue. Instead, Real Decreto 1619/2012 requires a formal corrective invoice: the factura rectificativa. Spain has no separate credit note regime. Since 2013, credit notes fall under the rectificativa framework, making this single mechanism the only lawful way to amend an issued invoice.

When You Must Issue a Rectificativa

A corrective invoice is required in two broad scenarios:

• The original invoice contains errors in any mandatory element. This includes an incorrect amount, a wrong VAT rate, a missing or inaccurate tax identification number, or any other field that Real Decreto 1619/2012 requires on a full or simplified invoice.
• The transaction terms change after invoicing. Price adjustments, returned goods, retroactive discounts, and renegotiated terms all trigger the obligation. If the taxable base or the VAT amount changes for any reason after the original invoice was issued, a rectificativa must follow.

Mandatory Content on a Corrective Invoice

Beyond the standard fields required on any Spanish invoice, a factura rectificativa must include:

• Explicit identification as a factura rectificativa (the document itself must state this)
• The original invoice number and date being corrected
• The reason for the correction
• The corrected data, presented using one of the two permitted methods below

Two Correction Methods: Substitution vs. Difference

The issuer chooses which method to apply. Both are legally valid under Spanish regulations.

Substitution method (sustitución). The rectificativa restates the corrected values in full. It effectively replaces the data on the original invoice. This approach works best when the correction is straightforward and the reader needs to see the final, accurate position in one place. A typical use case: correcting a unit price from EUR 40 to EUR 45 per item across a multi-line invoice.

Difference method (por diferencias). The rectificativa shows only the adjustment amount, the delta between the original and corrected values. This method suits partial corrections where restating the entire invoice would be unnecessary. A typical use case: a customer returns 50 of 500 units, and the rectificativa records only the value of the 50 returned items.

Separate Numbering Series

Rectificativa invoices must use their own sequential numbering series, distinct from ordinary invoices. Mixing corrective and ordinary invoices in a single series is non-compliant. Most businesses adopt a prefix convention such as "R-" or "REC-" (for example, REC-2026/001, REC-2026/002) to keep the series visually and logically separate. This is a regulatory requirement, not a best practice suggestion.

The 4-Year Limitation Period

A factura rectificativa must be issued within 4 years of the original invoice's tax accrual date. Once that window closes, correction via rectificativa is no longer available under Real Decreto 1619/2012. For errors discovered late, this deadline is the hard boundary, so organizations with long audit cycles should build internal review processes that surface invoice discrepancies well before the 4-year mark.

Invoice Numbering and Series Requirements

Spanish tax regulations require every invoice to carry a number that is sequential within its assigned series, with no gaps. This means each new invoice in a given series must follow the previous one in an unbroken chain. Most businesses reset their numbering at the start of each calendar year, though the rules permit multi-year sequences as long as the series remains continuous.

Where numbering gets more complex is the requirement for separate invoice series in specific situations. Spanish law mandates distinct series for:

• Facturas rectificativas (corrective invoices), which must always use their own dedicated series
• Recipient-issued invoices (autofacturas), where the buyer issues the invoice on behalf of the supplier
• Third-party-issued invoices, where an external party invoices on the supplier's behalf
• Different business establishments or activities within the same legal entity, which may each maintain their own series

If your business issues corrective invoices and standard invoices under the same series, you have a compliance problem that AEAT (Agencia Estatal de Administración Tributaria) will flag during an audit.

What "No Gaps" Actually Means

The sequential numbering requirement has a practical consequence that trips up many businesses: voided or cancelled invoices still consume their number. You cannot delete invoice number 247 and reuse it. The number is spent. If you cancel an invoice, the number remains in the sequence, and you must be able to account for it. AEAT expects to see a complete, unbroken sequence when they audit your records, and a missing number invites questions.

Numbering in the Era of Electronic Reporting

Spain's electronic reporting systems depend on correct sequential numbering as a data integrity check. Businesses enrolled in the SII (Suministro Inmediato de Información) system must submit invoice data to AEAT within four days of issuance. The SII cross-references invoice numbers against the reported sequence, making numbering errors visible almost immediately.

Looking ahead, the VeriFactu system (which begins phased implementation in 2026) raises the bar further. VeriFactu requires digitally signed invoice records that create a tamper-evident chain. Each record links to the previous one, and the sequential invoice number is a core element of that chain. Businesses with inconsistent or duplicated numbering will encounter rejection errors at the point of submission rather than discovering the problem months later during an audit.

For businesses setting up or auditing their invoicing systems now, building in separate series for corrective and recipient-issued invoices from the start is far less painful than restructuring later to satisfy VeriFactu's requirements.

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How Long to Keep Spanish Invoices

Spain does not impose a single retention period on invoice records. Three separate legal frameworks overlap, and the longest one sets your effective minimum.

4 years (tax retention). Under the Ley General Tributaria (Ley 58/2003), all tax-related records, invoices included, must be kept for four years from the end of the relevant tax period. This is the window during which the Agencia Tributaria (AEAT) can open an inspection and assess additional liabilities. Once it closes, the tax obligation prescribes.

6 years (commercial retention). Article 30 of the Código de Comercio requires businesses to retain all commercial documentation for six years from the last entry in the corresponding accounting period. This covers invoices, contracts, bank statements, and any other record tied to the business's accounting. Because it exceeds the four-year tax window, the commercial obligation is the binding floor for most companies operating in Spain.

5 years (B2G electronic invoices). Electronic invoices submitted to public administrations through the FACe platform or equivalent channels carry their own requirement: a minimum five-year retention period under public sector invoicing regulations. If you issue facturas electrónicas to government entities, you need to track and store those records separately from your standard commercial archive.

For the majority of businesses, the six-year rule under the Código de Comercio is the number that matters. It absorbs the four-year tax period entirely. Only B2G invoices fall into a middle category that requires independent tracking against the five-year threshold.

One additional obligation ties directly to invoice retention. When cumulative transactions with a single counterparty exceed EUR 3,005.06 in a calendar year, the annual Modelo 347 operations declaration becomes mandatory. The AEAT cross-references these declarations between buyer and seller, so retaining the underlying invoices is not optional; discrepancies trigger automatic queries.

Regardless of format, records must remain accessible and readable for the full retention period. For electronic invoices, this means preserving the original file format or documenting a compliant conversion process that maintains the invoice's integrity and authenticity. AEAT accepts digital storage, but the burden of proving that a stored invoice is complete and unaltered falls on the taxpayer.