Terms & Conditions for Contracting Verifacti

In force since 18 September 2026.

Preliminary. Definitions:

Verifacti: a software solution designed to facilitate the adaptation of an Invoicing Information System (SIF, by its Spanish acronym) to the VeriFactu system of the Spanish Tax Administration Agency (AEAT) and/or to the TicketBai system of the regional tax agencies of the Basque Country, based on REST API technology that enables communication between information systems over the Internet using the HTTP protocol, following the principles of the REST (Representational State Transfer) architectural style. BILBABIT reserves the right to change the name "Verifacti" at any time, without thereby modifying its functionalities.
Invoicing Record: a file automatically generated by Verifacti with the information provided by the Client or the End User through the SIF.
Invoicing Information System or SIF: software, application, or computer program owned and/or developed by the Client for managing invoices that it markets to its clients or End Users, as well as that used by the Client to issue its own invoices.
End User(s): client(s) of the Client who have contracted a license for the Invoicing Information System as taxpayers, or the Client itself if it uses the SIF to issue its own invoices, whose Tax Identification Number (NIF) will be communicated to BILBABIT for the use of Verifacti through the SIF.
Billing Cycle: period(s) (monthly or annual) that will begin on the date on which the Client creates a paid subscription through the payment gateway designated by BILBABIT, depending on whether a monthly or annual subscription is selected. Successive Billing Cycles will begin on the same day of each month/year as the start day of the first Billing Cycle and will end on the same day of the following month/year.
Computable NIF: Tax Identification Number, corresponding to an End User, registered in the Production Environment of Verifacti either by registering a new NIF or by reactivating a previously registered and deactivated NIF.
Test Environment: a technical system set up to verify that invoicing systems comply with legal and technical requirements before actual use, without fiscal effects or actual submission of data to the tax administration. Invoicing Records are sent to the test environment of the corresponding tax administration.
Production Environment: the real environment in which Invoicing Records with legal and fiscal validity are generated. In this environment, Invoicing Records are automatically sent to the tax administration for verification.

1. Identification of the Parties in the Contracting of Verifacti

The owner of the website https://www.verifacti.com/ (hereinafter, the Website) and the provider of Verifacti services is the company Bilbabit, S.L., with registered office at c/ Udaberría, 10 -4º B -48992 - Getxo (Bizkaia), duly registered in the Commercial Registry of Bizkaia, Section 8, Sheet BI-84418, and with Tax ID (NIF): B75777847. Hereinafter, BILBABIT.

BILBABIT can be contacted directly and effectively at the email address: soporte@verifacti.com.

The contracting party of Verifacti shall have the status of Client (regardless of whether they have contracted a free or paid plan) and by accepting these T&C, declares that they have read and understood their content, are of legal age, with the capacity to be bound in accordance with the provisions herein, in their own name and right or on behalf of any natural or legal person, private or public, legally constituted with the intention of contracting Verifacti for a purpose related to their commercial, business, trade, or professional activity, consisting of integrating Verifacti into their Invoicing Information System.

Certain aspects of the service may be subject to specific particular conditions duly accepted by the parties, which, as the case may be, shall replace, supplement, and/or modify these T&C. In case of contradiction, those particular conditions shall prevail.

2. Purpose of the T&C, Content of the Verifacti License and Integration

2.1. Purpose

By accepting these T&C, the Client contracts a license to use Verifacti, which may be free or subject to the payment of a price as stated, depending on the contracted plan and in accordance with these terms.

2.2. Content of the Verifacti License

By contracting Verifacti and accepting these T&C, BILBABIT grants the Client a non-exclusive, non-transferable, temporary (for the duration of the service contract) license to use Verifacti, for the territories in which the Client carries out its activity, and against payment of the corresponding price. This license consists of the API integration of Verifacti into the Client's Invoicing Information System, for use by its clients or by the Client itself, together with the other functionalities of the Invoicing Information System.

The Verifacti license may include, depending on the contracted plan:

Verifacti's REST API operates in four fundamental steps:

  1. Reception of a request with the data in JSON format necessary for the creation of the Invoicing Record.
  2. Return of a response with the QR code of the invoice, which the CLIENT may include in the invoice generated by their End User in the SIF.
  3. Generation of the Invoicing Record in XML format, which includes the chaining fingerprint.
  4. Submission of the Invoicing Record to the API of the corresponding tax administration (VeriFactu of the AEAT or TicketBAI of the Basque regional treasuries).

BILBABIT will perform updates to Verifacti for technical reasons, for aesthetic reasons of the interface, or arising from regulatory changes. The update service is included in the license contracted by the Client.

The license granted by BILBABIT shall in no case entitle the Client to use Verifacti:

  1. For uses contrary to its own nature and purpose.
  2. To perform any type of transformation on Verifacti, including error correction.
  3. To create successive versions of Verifacti or other software programs derived from it.
  4. To obtain copies of Verifacti.
  5. To market Verifacti in a manner different from its integration into its Invoicing Information System as established in these T&C.

2.3. Integration of Verifacti with the SIF

The integration of Verifacti with the Client's Invoicing Information System shall be carried out solely and exclusively via Application Programming Interface (API) following the detailed instructions in the BILBABIT API documentation, which BILBABIT makes available to the Client through the links published on the Website.

The Client shall be responsible for performing such integration using the instructions and technical information provided by BILBABIT, expressly declaring that:

  1. They have their own (internal or outsourced) software development team with knowledge of REST APIs (or RESTful APIs), to make HTTP requests (GET, POST, PUT, DELETE) and handle responses in JSON format.
  2. The SIF can interpret the responses returned by Verifacti.
  3. That the Verifacti API is compatible with its SIF, being capable of:
    • Detecting when a new invoice has been issued.
    • Sending it automatically to Verifacti (without manual intervention).
    • Including in the invoices generated by the SIF the QR code generated by Verifacti for each Invoicing Record.
  4. Without prejudice to the provisions of the Service Level Agreement (SLA) in section 7 below, if the Verifacti system goes down, the End User must resend the requests that could not be sent to Verifacti during the system outage.

BILBABIT shall not be liable in any case for the SIF not complying with the above or for the delay in integrating Verifacti with the SIF.

3. Procedure for Contracting Verifacti Services: Registration, Access to Paid Services, Price, Change of Payment Plan, and Duration of the Contract

Currently, the contracting procedure can be carried out in Spanish.

BILBABIT will not retain a copy of these conditions linked to the contract, therefore it is recommended that a copy of these be kept.

BILBABIT does not have the technical means to identify and correct errors in the Client's data entry, except for detecting whether any field necessary to process the request has not been completed.

In order to use Verifacti services, it is an indispensable requirement to register as a client.

3.1. Registration as a Client

To register as a Client, the Client must click on the registration button provided for that purpose on the Website and provide their data through any of the following options:

  1. Registration with email: the Client's email address and a password are requested, which will be stored encrypted and will serve as their Verifacti login credentials.
  2. Registration via Google social login: the Client can register using their Google account. In that case, Google will provide BILBABIT with their email address, profile picture, and name with a Unique Identifier associated with their Client profile.

To do so, the Client must log in to Google and accept the permissions that through the Google platform are granted to BILBABIT, which will allow Verifacti to access the name, email, and profile picture, for the purpose of providing the contracted service.

BILBABIT will make available to the Client information regarding the processing of personal data, which will be carried out in accordance with the Privacy Policy, as well as the T&C, which the Client must read and, if in agreement, accept by checking the box provided for that purpose.

Upon successful completion of the registration, the Client will be able to access Verifacti services that are not paid.

For the contracting of paid services, the Client's fiscal data will be requested, as well as the data related to the payment method used.

3.1.1. Accuracy of the Data Provided

The Client is solely responsible for ensuring that the data provided is up to date, complete, accurate, and truthful. BILBABIT disclaims any liability for non-compliance with such requirements in connection with registration.

If the Client detects any error in the data provided, they should proceed to correct it as soon as possible by contacting BILBABIT at the support email soporte@verifacti.com.

3.1.2. Client Access Credentials

Access credentials (email and password) are confidential. Therefore, the Client must be diligent in their use and safekeeping, so that unauthorized third parties cannot use them. Consequently, the Client is obliged to immediately notify BILBABIT of any loss of their access credentials, as well as any risk to or breach of their confidentiality. Otherwise, the Client shall be liable for any damage or loss caused through accesses verified using their access credentials.

If the Client does not remember their password, they may enter their email address to reset it.

If the Client does not remember the email address provided at the time of registration, they should contact BILBABIT at the email address soporte@verifacti.com, reporting the issue. BILBABIT will contact the Client and may request the submission of appropriate documentation (ID card, passport, Tax ID, articles of incorporation, power of attorney, or documentation of any other kind) that allows BILBABIT to identify the Client as such and, where appropriate, restore the use of Verifacti, all in the interest of security in the provision of the service.

3.1.3. Prohibition on Having More Than One Client Account

Only the creation of a single Client account in Verifacti per natural or legal person will be permitted. BILBABIT reserves the right to cancel accounts that fail to comply with the above.

3.2. Access to Paid Services

To contract the paid plan that best suits the Client's needs, they must access, through the Website or their Private Area, https://www.verifacti.com/precios and select:

  1. Whether they wish to contract a monthly or annual Billing Cycle.
  2. The number of Computable NIFs they wish to manage with Verifacti (contracting more than 20 NIFs cannot be done electronically).
  3. Next, the Client must click the purchase button and will be redirected to the payment gateway where they must select the payment method (bank card or SEPA direct debit) and complete the banking information requested, and read, and if in agreement, accept these T&C by checking the verification box provided for that purpose and clicking the "Pay and subscribe" button.

Payment of the price shall be made at the beginning of each Billing Cycle through the payment method selected by the Client during the contracting process.

Payment methods will be subject to checks and authorizations by the issuing entity, but if said entity does not authorize the payment, the contract will not be activated.

The Client guarantees that they have full authorization to use the payment method chosen during the contracting process.

Upon successful completion of the contracting of the corresponding paid plan, the Client will have access to the services associated with it.

3.3. Price of Verifacti Services

The price (monthly or annual) of the Verifacti Plans in effect at the time of contracting are those agreed with Verifacti in exceptional cases for customized special plans or those published in euros at https://www.verifacti.com/precios, which do not include legally applicable taxes, and which will be applied as appropriate during the contracting process.

The prices indicated on the Website cover up to a maximum of 3,000 invoices per month for each Computable NIF. If any Computable NIF exceeds that limit, an additional charge of €0.002 per invoice exceeding that monthly maximum will be applied.

Prior to contracting, once the corresponding options have been selected, a summary of the price of the contracted plan and applicable taxes will be displayed.

Prices may be modified upward or downward for various reasons; however, any price modification shall take effect from the date of contracting or service renewal subsequent to said modification.

Prices shall be updated upward on January 1 of each year, regardless of the date of contracting the corresponding service, based on the percentage variation of the Consumer Price Index (CPI) published by the National Statistics Institute (INE), considering the period between December of the previous year and the December immediately preceding said update date. Until the indices to be applied to determine the revision amount are published, the CLIENT will continue to pay the amount they were paying before the revision date, but it shall be understood that such payment is made on account of the amount due under this section, the application of which shall have retroactive effect from the date set for revision.

Without prejudice to the update in accordance with the CPI, BILBABIT reserves the right to increase the price of the service by notifying the Client at least thirty (30) calendar days prior to the effective date of the modification, by email to the address provided by the Client.

The Client may oppose the price modification by notifying BILBABIT in writing before the expiration of the aforementioned notice period. If the Client does not express their opposition before the expiration of the aforementioned thirty (30) calendar day period, it shall be understood that they accept the new price and will continue to enjoy the Verifacti service at the new prices from the effective date of the modification. In the event that the Client expresses disagreement, they may terminate the contract within the following 3 months without the new rates being applied.

The charge of the corresponding price amount (monthly or annual) will be made to the payment method selected by the Client during the contracting process, the first at the time of contracting and the subsequent ones on the same day of the following months/years, as applicable.

3.4. Change of Payment Plan

Payment of the corresponding monthly Consideration shall entitle the Client to use the number of Computable NIFs during the current Billing Cycle. If during the Billing Cycle the Client deactivates or requests the deactivation of any Computable NIF, there will be no refund of the monthly Consideration paid for that Billing Cycle.

If during a current Billing Cycle the Client contracts a payment plan increasing the number of Computable NIFs, they must pay at that time the corresponding price amount in proportion to the remaining Billing Cycle.

The Computable NIFs of a Billing Cycle shall be maintained for the following Billing Cycle, unless the Client requests their deactivation before the next Billing Cycle begins.

If the limit of 3,000 invoices per Computable NIF is exceeded during a billing cycle, the corresponding additional charge will be added to the amount payable by the Client at the beginning of the next Billing Cycle.

3.5. Duration and Termination of the Verifacti Service Contract

The Client may maintain their Client account on the free version indefinitely.

The Client may maintain the paid plan they have contracted as long as they are current on the payment of the price and during the contracted term (monthly or annual). The contract shall be automatically renewed for an identical term to the one initially contracted unless either Party notifies the other of its intention not to renew at least five (5) days prior to the expiration date of the initial term (monthly or annual) or any of its renewals.

If the Client requests cancellation of the contracted plan, they may continue using the service until the end of the contracted period (monthly or annual), without being charged the amount corresponding to the next Billing Cycle.

Following termination of the contract, the processing and retention of the data shall be governed by the provisions of the Privacy Policy and, where applicable, of the Data Processing Agreement (DPA) in force.

Early termination of the service contract may also occur if any of the causes provided for in the applicable legislation or in these T&C exist.

BILBABIT may withdraw or suspend the provision of services at any time and without prior notice in the event of breach of any of the obligations assumed under the T&C, with express reservation of the right to claim, where applicable, any damages that may be incurred as a result of such breach.

3.6. Invoicing

BILBABIT shall issue the corresponding invoice detailing the Value Added Tax (VAT) and applying the tax withholdings that, where applicable, correspond according to the rate in effect at the time. For this purpose, complete billing information must be provided.

4. Denial of Access to the Service

BILBABIT may deny the Client access to Verifacti in any of the following cases:

  1. It verifies that the data provided is false, incomplete, and/or inaccurate.
  2. The activity carried out by the Client (or by third parties designated by them) does not comply with these T&C and/or it is found to put at risk the proper functioning of the service for other users or the Verifacti systems.
  3. There is any outstanding payment amount owed to BILBABIT.

The denial of access to the services will be communicated by email to the address provided by the Client.

5. Promotions

BILBABIT shall have the right to establish at any time promotional campaigns for its services with certain advantages for users, which shall remain in effect for the time they are published on the Website or for the time established in the corresponding promotion. Promotions are not cumulative.

6. Other Service Conditions

6.1. Improper Use of Verifacti

The use of Verifacti for any purpose other than that for which its functionalities are intended is strictly prohibited.

The Client shall be liable for any improper use they make, as well as for the improper use by any third party to whom they grant access to their account.

6.2. Contracting of Services by End Users

The Client shall be solely liable to its End Users for their contracting of a license to use the Client's SIF.

The Client declares and warrants that they are authorized and/or have all necessary authorizations to communicate to Verifacti all personal data and fiscal information of End Users in order to fulfill the purpose of these T&C.

6.3. Participation of the Client or Users

In the event that the Website or Verifacti allows participation through the posting of comments or the creation of content, it is absolutely prohibited to disseminate content or propaganda of an unlawful, racist, xenophobic nature, in support of terrorism, contrary to human rights, or that incites hatred, violates the dignity of the person, or is of a defamatory, slanderous nature, or against public order or safety. BILBABIT reserves the right to remove all comments and/or content that violate the foregoing or that are not suitable for publication.

In any case, BILBABIT shall not be liable for the opinions expressed or for the content published by users through forums, chats, blogs, or other participation tools that may be created, except as expressly provided by applicable regulations.

6.4. Prohibition of Screen Scraping, Web Scraping, or Similar Techniques

The use of screen scraping, web scraping, or any other programming technique or technique of any kind that allows the extraction of information or data hosted, stored, or accessible in Verifacti without the express written authorization of BILBABIT is expressly prohibited.

6.5. Support Service

BILBABIT shall provide the Client with support service through the email address soporte@verifacti.com or any other means of communication that BILBABIT establishes during the term of the service contract:

  1. During the integration of Verifacti with the SIF.
  2. Once integration is complete, to address potential issues.

BILBABIT shall in no case provide support service directly to the Client's End Users.

The support service shall be provided from Monday to Thursday in Spanish peninsular time from 09:00 to 13:00, except for national, regional, or local holidays in Bilbao (Bizkaia).

6.6. Guarantee on Verifacti Intellectual Property Rights

BILBABIT expressly declares and warrants that it is the legitimate owner of all intellectual property exploitation rights that may apply to Verifacti; by way of example and not limitation, the rights of reproduction, distribution, public communication, and transformation. In accordance with current regulations, the rights over Verifacti also cover its preparatory documentation, its technical documentation, and its user manuals.

BILBABIT shall be liable to the Client for the originality of Verifacti and the ownership of the rights therein, and expressly declares that it has no impediment whatsoever in granting a license to use Verifacti in accordance with the provisions of these T&C.

6.7. Secure Software Guarantee

BILBABIT guarantees the Client that access to Verifacti is secure and free from any type of computer virus or harmful component that could damage the Client's Invoicing Information System.

BILBABIT hosts the data on infrastructure located within the European Economic Area. However, certain providers, or their own providers, may carry out support, maintenance or administration operations involving access to the data from outside the European Economic Area, in which case such access shall take place with the safeguards provided for in Chapter V of the GDPR, on the terms set out in the Data Processing Agreement (DPA) and in the Privacy Policy.

7. Service Availability. Service Level Agreement (SLA)

BILBABIT shall make commercially reasonable efforts to provide a service available 24 hours a day, 7 days a week, except in the following cases:

Notwithstanding the foregoing, the Parties agree to the following Service Level Agreement (SLA) regarding service failures not caused by the exceptional causes described above.

7.1. Failure Classification

7.2. Repair Times

BILBABIT commits to resolving incidents within the following repair times counted in business hours:

Business hours are considered to be those between 09:00 and 15:00 (Spanish peninsular time) from Monday to Friday, excluding national, regional, or local holidays in Bilbao (Bizkaia).

However, in the event of a Critical Failure (CF) outside of business hours, BILBABIT has enabled the email address emergencias@verifacti.com with the commitment to begin diagnostic work within 4 hours following the notification of the failure, regardless of the day or time it occurs. If the Client uses said email address when no Critical Failure (CF) has occurred, BILBABIT may charge the Client the amount that attending to the reported incident has cost BILBABIT at a rate of €50.00/hour.

The repair time count (8 business hours) shall begin on the next business day, but this initial attention shall ensure early detection and the activation of mitigating or preventive measures.

7.3. Penalties

In the event of non-compliance with repair times, or if failures reach the frequency detailed below, the corresponding penalties shall apply, to be deducted from the price amount payable by the Client to BILBABIT, upon request from the Client through soporte@verifacti.com.

Time exceeded ("t") or No. of monthly failuresPenalty (%) on the Monthly Price
30 min < t ≤ 1 hour / 2 MF or 5 mF3%
1 hour < t ≤ 3 hours / >2 MF or >5 mF6%
3 hours < t ≤ 8 hours / > 5 MF or >10 mF or 1 CF15%
8 hours < t ≤ 24 hours / > 7 MF or > 14 mF or 2 CF25%

For unavailability times exceeding the above, the penalty shall be calculated proportionally according to the above tiers, without exceeding, in any case, 100% of the Monthly Consideration.

For the purposes of this SLA, Monthly Price means the amount that the Client must pay to BILBABIT as the Verifacti license fee, i.e., the monthly fee or the proportional part of the annual fee, for the month in which the failure(s) occurred.

8. Responsible Declaration of the Verifacti Information System

BILBABIT declares, under its sole responsibility, that the Verifacti REST API and its components comply with the requirements established in the Regulation approved by Royal Decree 1007/2023, of December 5, as well as with the provisions of Order HAC/1177/2024, of October 17, regarding the technical and functional characteristics of invoicing information systems, when Verifacti is integrated as a component of the Client's SIF.

9. Limitation of Warranty and Liability

BILBABIT shall make the Verifacti REST API available to the Client "as is," without any other implied or presumed warranty, except those expressly set forth in these T&C.

BILBABIT solely commits to guaranteeing the correct technical functioning of Verifacti in accordance with the provisions of these T&C. In the event of technical errors attributable to BILBABIT, its liability shall be limited to correcting the detected defect or, where applicable, to a partial refund of the Monthly Price as provided in the Service Level Agreement (SLA).

The Client relies on Verifacti and the results derived from its integration with their own SIF solely at their own risk. BILBABIT assumes no liability for indirect damages or loss of profits arising from the use of Verifacti by the Client or its End Users, except in cases of willful misconduct or breach of contract by BILBABIT.

BILBABIT and the Client, in the exercise of their respective activities, shall be directly responsible for compliance with all obligations that legally correspond to them.

BILBABIT shall not be liable in any case for:

10. Modification of Contracting Conditions

BILBABIT reserves the right to modify or include changes in these T&C as a result of the modification, evolution, and enactment of laws, regulations, and standards applicable to the provision of the service and/or aspects related thereto, or in connection with technical or technological aspects that could not have been foreseen at the time these conditions were drafted.

11. Rights and Obligations of BILBABIT

11.1. Rights

BILBABIT shall have the right to:

11.2. Obligations

BILBABIT commits to providing the services in accordance with the terms established in these T&C.

12. Rights and Obligations of the Client

12.1. Rights

The Client shall have the right to use the contracted services in accordance with the provisions of these T&C.

12.2. Obligations

By contracting Verifacti services, the Client shall be obliged to:

13. Data Processing by BILBABIT as Data Controller

The personal data that BILBABIT processes as Data Controller shall be processed in accordance with the Privacy Policy published on the Website (https://www.verifacti.com/privacidad) to which we refer to avoid unnecessary repetition.

14. Data Processing Agreement by BILBABIT as Data Processor (DPA)

To the extent that BILBABIT processes personal data on behalf of the Client for the provision of Verifacti —whether as Data Processor or, where applicable, as Sub-processor—, both parties are subject to BILBABIT's Data Processing Agreement (DPA), available at this link, which is deemed incorporated into these T&C by reference.

To obtain a signed copy of the DPA, the Client may contact soporte@verifacti.com.

15. Use of the Client's Brand

By accepting these T&C, the Client authorizes BILBABIT to publicize the Client's name, trademark, or logo on the website and other advertising media of BILBABIT, as a reference that they are a user of Verifacti, unless they communicate their opposition in this regard to BILBABIT.

16. Modification of Services

BILBABIT reserves the right to modify the services in order to adapt them:

  1. To the technical evolution of the market.
  2. To any technical, functional, and operational improvement that allows an improvement in the provision thereof.
  3. To the evolution of laws, regulations, and standards applicable to the provision of the Services and/or aspects related thereto. Likewise, BILBABIT reserves the right to unilaterally and without prior notice modify the presentation, configuration, and operability of the service, provided that such modification does not affect the functionality or the Service commitments acquired nor entail any increase in the agreed prices.

17. Applicable Law and Competent Jurisdiction

These terms and conditions shall be governed by Spanish law, although the choice of law does not prevent invoking the protection afforded by the mandatory provisions of the law of habitual residence in the event of having consumer or user status, although Verifacti is directed at companies and/or professionals that contract it for a purpose related to their commercial, business, trade, or professional activity.

Any divergence and/or disagreement with respect to the provisions of these conditions shall be submitted to the Courts and Tribunals of Bilbao.

In the unlikely event that the Client may be considered a consumer or user under consumer protection regulations, the courts and tribunals of their domicile shall have jurisdiction.

Updated on 18 September 2026