TicketBAI in Bizkaia: when it came into force and obligations for companies

Jan 19, 2026 | Uncategorized

Wondering about TicketBAI in Bizkaia and its entry into force is a legal and strategic matter. Especially if you operate in this historic Basque territory. Since 2024, this system has been progressively implemented and, as of today, it is a full legal requirement that influences invoicing, internal control, and fiscal data governance.

For medium and large companies, multinationals, with several ERPs or with high volumes of invoicing, TicketBAI has brought about a profound technical change in how operations are generated, registered, and reported to the Foral Treasury. In this article, we clarify when TicketBAI came into force in Bizkaia, who it affects, who is exempt, and what consequences it has.

What is TicketBAI and why is it already vital in Bizkaia?

To begin, TicketBAI is the invoicing control system promoted by the Foral Treasuries of the Basque Country to prevent tax fraud and improve traceability of economic operations.

Therefore, TicketBAI Bizkaia is this same fiscal and tax system applied to the province. It is part of the project Batuz, which is based on three pillars:

  • TicketBAI, for invoicing control.
  • LROE Bizkaia, which is the Register Book of Economic Operations.
  • Assisted tax declarations.

Likewise, the objective of Batuz is to ensure that every invoice issued is registered, digitally signed, and automatically communicated to the tax administration, without subsequent manipulations.

TicketBAI in Bizkaia: when does it definitively come into force?

To answer the direct question of when TicketBAI Bizkaia comes into force, if you have operated or operate with Bizkaian companies or administrations you will know that it is already in effect. However, it has only been in effect recently.

Implementation dates

Like other systems, the implementation of TicketBAI in Bizkaia has been progressive, although the calendar is now completely closed. We see it in this table:

Date
Regulatory Situation

2022–2023
Voluntary period with tax incentives.

2024
TicketBAI Bizkaia mandatory for companies.

January 1, 2026
Mandatory for other professionals and self-employed individuals (although there are some exceptions until mid-year)

Therefore, since 2024, TicketBAI is mandatory for all companies operating in Bizkaia, regardless of their size, sector, or billing volume. So there is no longer an adaptation phase or general moratoriums for commercial companies, although there are some exceptions until mid-2026 for certain self-employed individuals. .

The latest of the 3 provinces

In fact, the implementation of TicketBAI in Bizkaia has been slower than in Álava (between 2022 and 2023 with a sectoral implementation) and Gipuzkoa (between 2021 and 2023). 

TicketBAI Bizkaia Mandatory: Who Is Affected?

Furthermore, the mandatory nature of TicketBAI in Bizkaia affects:

  • Companies with tax domicile in Bizkaia.
  • Companies permanently established (also with registered office) in Bizkaia.
  • Foreign business groups that invoice operations subject to taxation in Bizkaia.
  • Companies with continuous economic activity in the province, regardless of their sector.

Additionally, although the regulation is transversal, there are sectors where the operational impact of TicketBAI’s entry into force for Bizkaia is greater. Specifically:

  • Industry and manufacturing.
  • Distribution.
  • Retail, especially B2B.
  • Energy and utilities.
  • Corporate professional services.
  • Technology and SaaS companies with local billing.

In these environments, the challenge has been to integrate TicketBAI into complex architectures without disrupting existing processes.

The requirements of the TicketBAI regulation in Bizkaia: 

Regarding how to comply with TicketBAI in Bizkaia after its entry into force, it’s much more than generating a QR on the invoice. In fact, the basic requirements you should already be meeting are:

  • Use a approved invoicing software.
  • Digitally sign each invoice with a valid certificate.
  • Include in invoices the aforementioned QR code and the TBAI identifier.
  • Automatically send the invoice to the Provincial Treasury of Bizkaia.
  • Do not alter the content once it has been issued.
  • Retain and trace any record or invoice completely.

Nevertheless, all these requirements are easily met with the first one: approved software, like the solutions we design at easyap.

In any case, from a financial and compliance perspective, this implies that you, as a financial executive, should have done the following:

  • Audit the invoicing systems.
  • Review tax data flows.
  • Align your ERP, satellite systems, and tax reporting.

LROE Bizkaia, the largely overlooked (and most critical) aspect

Another aspect least understood by many companies in this implementation has been that of LROE Bizkaia (Register Book of Economic Operations). It is a mandatory electronic register that:

  • Consolidates all issued and received invoices.
  • Is automatically fed from TicketBAI.
  • Replaces traditional VAT books.

The problem is that it concerns (or should concern) financial professionals and CEOs because:

  1. Requires absolute consistency between invoicing, accounting, and taxation.
  2. Reduces the margin for ex-post correction.
  3. Increases exposure to penalties due to systematic errors.

Therefore, the LROE requires aligning finance, IT, and taxation like never before.

TicketBAI Bizkaia Exemptions After Entry into Force

On the other hand, it is important to be very clear: the exemptions for TicketBAI in Bizkaia after its entry into force are limited and very specific. Exemptions or special regimes can only exist for:

  • Activities completely exempt from invoicing.
  • Very specific cases regulated by the Provincial Treasury.
  • Certain non-subject operations.

Therefore, having a low invoicing volume, being a foreign company, or using an unadapted international ERP will not exempt you from complying with TicketBAI in Bizkaia right away. Let’s look at some examples.

Example 1: Industrial multinational

A German industrial company with a subsidiary in Bizkaia:

  • Invoices locally.
  • Uses SAP as its global ERP.
  • Issues thousands of invoices monthly.

Obligation: must adapt its invoicing system so that every invoice issued from Bizkaia complies with TicketBAI, regardless of its global structure.

Example 2: International SaaS company

A tech company headquartered in the USA with clients in Bizkaia:

  • Recurring invoicing.
  • Monthly subscription.
  • Centralized cloud ERP.

Obligation: must ensure that invoices issued to Bizkaia are generated with TicketBAI-adapted software and are reported automatically.

Risks of non-compliance with TicketBAI in Bizkaia

Those not complying immediately face risks such as these:

  • Penalties ranging from 2,000 to 80,000 euros per operation, depending on severity.
  • Possible invalidation of invoices.
  • Recurring tax inspections.
  • Reputational damage with the Administration and potential clients.
  • Blocking of internal closing and reporting processes.

Why is TicketBAI a financial project and not just a tax project?

What has become clear since TicketBAI came into effect in Bizkaia is that it’s a financial project, not just a tax one. For CFOs and financial management, it implies:

  • Redesigning processes.
  • Implementing new internal controls.
  • Increased reliance on data quality.
  • Coordinating areas and teams, such as IT and technology providers.

In other words, we are facing a structural change in the financial function.

Frequently Asked Questions about TicketBAI Bizkaia

To clarify doubts about its effective date or penalties and consequences, easyap has content with frequently asked questions about TicketBAI. An article that supplements the following questions we’ve added here:

Does TicketBAI Bizkaia affect invoicing between group companies?

Yes. Intra-group operations subject to taxation in Bizkaia must comply with TicketBAI.

Is TicketBAI mandatory for foreign companies?

Yes, if they carry out operations subject to the Provincial Treasury of Bizkaia.

Can an international ERP be used without adaptation?

No. The ERP must be adapted or integrated with an approved TicketBAI system.

In short, TicketBAI in Bizkaia came into force for companies from 2024 and will be fully integrated for self-employed individuals in 2026. Therefore, the reaction time has been reduced to zero. For complex organizations, the challenge is to comply without friction, without risks, and with a strategic vision.

Now, having adapted digital invoicing software is an operational and financial urgency. In this context, solutions like easyap address TicketBAI in Bizkaia with a global, scalable vision that aligns with the demands of modern financial departments. Contact us and we’ll show you.

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