Mandatory electronic invoicing in Spain now has a defined implementation timetable. The publication of Order HAC/1028/2026 of 2 October completes the regulatory framework governing electronic invoicing between businesses and professionals and establishes the operating rules for the Spanish Tax Agency’s public invoicing platform.
The new requirements will affect how businesses issue, exchange and manage invoices in Spain. At VAT & GREEN TAX, we examine the main obligations, implementation deadlines and VAT compliance considerations that companies should assess before adapting their invoicing systems.
Mandatory Electronic Invoicing in Spain: What Are the New Requirements?
Under the new framework, affected businesses and professionals must issue, transmit and receive invoices in a structured electronic format that enables automated processing.
Consequently, sending a PDF invoice by email will no longer be sufficient to comply with the new requirements.
Companies may use the Spanish Tax Agency’s free public electronic invoicing platform, compliant private invoicing systems or a combination of both.
Order HAC/1028/2026 establishes the technical and operational requirements of the public platform, including the European EN16931 standard and the UBL electronic invoicing format.
Where invoices are issued or exchanged through private platforms, a faithful electronic copy must also be submitted simultaneously to the public system in the prescribed format.
Which Companies Are Subject to Mandatory Electronic Invoicing in Spain?
The new obligations apply to transactions that must be documented by an invoice under Spanish invoicing regulations, where the recipient is a business or professional established in Spain.
Transactions involving permanent establishments located in Spain are also included.
However, sales to private consumers and transactions involving customers not established in Spain fall outside the scope of this specific regime.
Ordinary simplified invoices are generally excluded, except where they contain the additional information required to support VAT deduction.
For international companies operating in Spain, determining whether a particular transaction falls within the new electronic invoicing requirements is therefore an important compliance consideration.
Electronic Invoicing in Spain: Implementation Deadlines for 2027, 2028 and 2029
The implementation timetable depends primarily on the taxpayer’s annual turnover, calculated according to Spanish VAT rules by reference to the preceding calendar year.
6 October 2027
Businesses and professionals with annual turnover exceeding €8 million must issue, transmit and receive electronic invoices and comply with invoice status and payment reporting obligations.
6 October 2028
Mandatory electronic invoicing extends to the remaining businesses and professionals, with invoice status and payment reporting generally becoming applicable as well.
6 October 2029
Individuals and entities under the income attribution regime with turnover not exceeding €8 million must begin reporting invoice statuses and payments.
This additional deadline applies exclusively to those reporting obligations, as their electronic invoicing requirements will already apply from October 2028.
During the first twelve months, businesses subject to the rules from October 2027 must also provide a readable PDF copy of their electronic invoices, unless the recipient expressly agrees to receive invoices exclusively in their original electronic format.
Invoice Status and Payment Reporting Obligations
The Spanish electronic invoicing framework also introduces requirements concerning invoice acceptance, rejection and payment information.
Recipients must report the relevant invoice statuses and communicate payment information in accordance with the applicable invoicing channel.
As a general rule, full payment must be reported to the public platform within four calendar days of the actual payment date, excluding Saturdays, Sundays and Spanish national public holidays. The invoice due date must also be reported.
These requirements mean that companies may need to review both their invoicing systems and their internal accounts payable and receivable procedures.
How Should Companies Prepare for Mandatory Electronic Invoicing in Spain?
Implementing electronic invoicing should not be treated solely as an IT project.
Before selecting or configuring an invoicing solution, companies should review their existing invoicing procedures and assess whether their VAT treatment and invoice content comply with Spanish tax regulations.
This assessment is particularly important for businesses involved in cross-border transactions or activities subject to specific VAT rules.
Key areas to review include:
- Identifying transactions and invoicing flows affected by the new requirements.
- Verifying Spanish VAT place-of-supply rules, exemptions, VAT rates and reverse charge arrangements.
- Checking mandatory invoice information and references.
- Reviewing advance payments, corrective invoices, credit notes and manual adjustments.
- Documenting the tax requirements that must be incorporated into the electronic invoicing system.
Incorrect VAT treatment or incomplete invoicing information may become a recurring compliance issue when automated processes are implemented without an appropriate preliminary tax review.
Spanish VAT Advisory Services for Electronic Invoicing Compliance
For companies operating in Spain, the transition to mandatory electronic invoicing offers an opportunity to strengthen invoicing procedures and review existing VAT compliance practices.
At VAT & GREEN TAX, we provide specialist Spanish VAT advisory services, helping domestic and international businesses assess their invoicing obligations, identify potential tax risks and establish the fiscal requirements their electronic invoicing systems must meet.
Our approach focuses on ensuring that technological implementation is supported by a sound understanding of the underlying Spanish VAT rules.
If your company needs assistance preparing for mandatory electronic invoicing in Spain, contact our VAT specialists at VAT & GREEN TAX to discuss your compliance requirements.
