Spanish invoice requirements: the details you cannot leave out

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Tick the details your invoice carries: the calculator tells you whether it is complete under the Invoicing Regulation and what Verifactu adds.

Number and series
Issue date
Names of both parties
Tax IDs of issuer and recipient
Addresses of both
Description of the supply
More details
VAT rate applied
VAT amount
Date of supply, if different

Mandatory data present

8 / 8

It has the basic article 6 data. With Verifactu, also add the tax QR code and, where relevant, the VERI*FACTU wording.

Special wordingExemption, reverse charge, cash accounting…
With VerifactuTax QR code (art. 6.5)
RetentionFor the limitation period (art. 19)

Summary of article 6.1 of RD 1619/2012; the full text has 16 items (a to p).

How this is calculated

Prepared by Radif Partners · Method · Rules read in the BOE and at the AEAT on 25 October 2026

A full invoice in Spain must carry the details listed in article 6.1 of the Invoicing Regulation: a number and, where used, a series, numbered consecutively; the issue date; the full name or company name of both issuer and recipient; the issuer's tax ID and, in most business transactions, the recipient's too; both addresses; a description of the transaction with what is needed to work out the taxable amount, including the unit price before tax and any discounts; the VAT rate or rates applied; the VAT amount shown separately; and the date of the transaction if it differs from the issue date. Depending on the case, special wording is added: a reference to the exemption, “inversión del sujeto pasivo” for reverse charge, “facturación por el destinatario” for self-billing, “régimen especial del criterio de caja” for cash accounting, and the wording for the travel agency and second-hand goods schemes. Only a document with all these details counts as an invoice for VAT deduction. If it is issued by software subject to Verifactu, it also carries a QR code and, when the system sends its records to the Tax Agency, the sentence “Factura verificable en la sede electrónica de la AEAT” or “VERI*FACTU”.

The details in article 6.1

Content of a full invoice under the Invoicing Regulation.
LetterDetailWhen
aNumber and series, consecutiveAlways; separate series for corrective invoices
bIssue dateAlways
cName of issuer and recipientAlways
dTax IDs of issuer and recipientIssuer always; customer in the listed cases
eAddresses of bothAlways
fDescription, unit price before VAT and discountsAlways
g and hVAT rate and separate VAT amountWhenever VAT applies
iDate of the transactionIf different from the issue date
j to pSpecial wordingExemption, reverse charge, cash accounting and others

Article 6 of the Invoicing Regulation adds two rules that are often forgotten. First, if an invoice covers exempt and non-exempt transactions, reverse-charge and ordinary transactions, or different VAT rates, the taxable amount of each must be shown separately. Second, only a document that brings together all these details counts as an invoice for the right to deduct. A quote, a delivery note or a pro forma is not one, even if it shows amounts and tax IDs.

What Verifactu adds

Royal Decree 1007/2023 added a paragraph 5 to article 6 for invoices issued with invoicing software: they must carry a graphic representation of part of their content as a QR code, which on an electronic invoice may be replaced by the content it represents. If the system sends all records to the Tax Agency, the invoice also includes the sentence “Factura verificable en la sede electrónica de la AEAT” or “VERI*FACTU”. The QR encodes a URL with the issuer tax ID, number, date and amount, under the AEAT specification. Change the amount and watch the address change:

URL encoded in the QR

URL encoded in the QR

Valid

URL (test environment)https://prewww2.aeat.es/wlpl/TIKE-CONT/ValidarQR?nif=89890001K&numserie=12345678%26G33&fecha=01-01-2024&importe=241.4
The & in the number%26
Generate the full QR code →

Details that are optional but useful

The regulation allows any other wording. In practice it pays to add the payment method and due date, the bank account, the customer's order reference and, on invoices to public bodies, the routing codes their entry point asks for. For B2B e-invoices, the customer may require extra data if you have agreed on it and they gave it to you before the transaction.

A sample invoice with every detail, in Facturae format, is on the e-invoice example. Receipts follow lighter rules, explained in the simplified invoice, and errors are fixed as described in the corrective invoice. You can try the QR code with the QR generator before your software prints it.

Common questions

What happens if my invoice is missing a mandatory detail?

The document is not a complete invoice for the purposes of article 97 of the VAT Act, and your customer may struggle to deduct the VAT. The proper step is to issue a corrective invoice, because article 15.1 of the Regulation requires a correction when the original does not meet the article 6 requirements. You do not fix it by hand or replace the original.

Must the customer’s tax ID always appear?

Not in every case, but in most invoices between businesses. Article 6.1.d requires it for exempt intra-EU supplies, when the customer is liable for the VAT, and for transactions carried out in Spain by an issuer established here. If the customer is a private individual you may leave it out, although it is worth adding if they ask.

How long must invoices be kept in Spain?

Article 19 of the Regulation refers to the General Tax Act period: invoices received and copies of those issued are kept, with their original content and in order, for the tax limitation period. An electronic invoice is kept as the original electronic file, not as a printout made from it.

Keep going

Official sources for this page

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Publisher of free tools on Spain's Verifactu and e-invoicing rules: eligibility check, QR reader, Facturae creator and timeline, all in your browser

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As of 2026, rules read in the BOE and on the AEAT website on