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Model 242. Self-assessment of the Complementary Tax

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Instructions

General issues

The purpose of model 242, "Self-assessment of the Complementary Tax", is to self-assess the Complementary Tax accrued by the taxpayer included in the self-assessment, who is part of a large national or multinational group subject to it.

The self-assessment or self-assessments must be submitted regardless of whether the resulting tax liability is positive or zero, and may not be negative in any case, therefore the self-assessments submitted may not give rise to any refund.

These instructions are applicable for the first time to self-assessments submitted from July 1, 2026 onwards, regardless of the tax period to which they refer.

References to the Complementary Tax Law contained in these instructions are understood to refer to Law 7/2024, of December 20, which establishes a Complementary Tax to guarantee a minimum global level of taxation for multinational groups and large national groups, a Tax on the margin of interest and commissions of certain financial entities and a Tax on liquids for electronic cigarettes and other tobacco-related products, and modifies other tax regulations.

Required to submit form 242

The party required to submit form 242 will be the taxpayer of the Complementary Tax, in the event that it is the only constituent entity that makes up the large national or multinational group present in Spain.

In all other cases, the person required to submit form 242 will be the substitute taxpayer, determined in accordance with the rules provided for in article 6.5 of the Complementary Tax Law.

The taxpayer's substitute, in addition to the self-assessment that corresponds to him/her as a taxpayer, You must submit as many self-assessments as there are taxpayers you are replacing.so that a debt will be determined and paid for each of the replaced taxpayers.

Deadlines for submitting form 242

In general, form 242 must be submitted and paid to the Tax Administration within 25 calendar days following the fifteenth month after the conclusion of the tax period, in accordance with the terms provided in article 50 of the Complementary Tax Law. Therefore, for a period X coinciding with the calendar year, the self-assessment period will be between April 1 and 25 of year X+2.

However, the self-assessment or self-assessments relating to the transitional tax period, in which a large multinational or national group enters for the first time into the scope of a supplementary tax in accordance with an admissible income inclusion rule or an admissible insufficiently taxed profit rule, must be submitted to the Tax Administration within twenty-five calendar days following the eighteenth month after the conclusion of the tax period.

In any case, no self-assessment tax return, whatever the tax period to which it refers, may be submitted before June 30, 2026, with the twenty-five-day period referred to in the previous paragraph being calculated from that date.

Forms of presentation of model 242

The submission of form 242 will be mandatory electronically using recognized electronic certificates issued for the identification and authentication of the taxpayer.

Form 242 can be submitted by:

  1. Taxpayers.

  2. Voluntary representatives of those obliged to pay with powers or faculties (representatives) to electronically submit declarations and self-assessments to the Tax Agency on their behalf or to represent them before it.

For these purposes, it is reported that in addition to the general power of attorney, there is a specific power of attorney procedure for the presentation of this model.

  1. Social collaborators in the application of taxes.

 Completion of form 242

  1. PERIOD

    The start date and end date of the tax period to which the self-assessment refers, the tax year to which the tax period refers, and the type of tax year must be stated.

    The type of exercise can take 3 possible values:

    • Value 1: Tax period coinciding with the calendar year

    • Value 2: Tax period not coinciding with the calendar year.

    • Value 3: Tax period of less than one year.

  2. IDENTIFICATION OF THE DECLARING ENTITY

    In this section you must enter the NIF of the declarant, and his/her name or company name.

    Telephone: A contact telephone number must be indicated in this box.

  3. TYPE OF DECLARANT

    The declarant will identify the condition for which they are submitting the self-assessment of the Complementary Tax, by checking the corresponding box:

    • Taxpayer: It will be marked in those cases where the multinational or large national group consists of a single constituent entity based in Spain.

    • Substitute for the taxpayer, according to art. 6.5. of the Complementary Tax Law, and must in turn select one of the 3 scenarios provided: ultimate parent entity, Spanish parent with a net book value of tangible assets greater than the rest of the Spanish parent companies, or constituent entity with a net book value of tangible assets greater than the rest of the Spanish constituent entities.

    If the declarant's status is that of a substitute, the NIF and the company name or denomination of the constituent taxpayer entity for which the self-assessment is presented will be entered.

  4. GROUP IDENTIFICATION

    This section will state the name of the national or multinational group to which the declaring entity belongs, specifying the type of group (national or international) and the applicable regulations according to the regional regulations: If it is a group subject to regional regulations, or to joint State/Regional Territories taxation, depending on the provisions of Article 20bis.One of Law 12/2002, of May 23, which approves the Economic Agreement with the Autonomous Community of the Basque Country, and Article 27bis.1 of Law 28/1990, of December 26, which approves the Economic Agreement between the State and the Regional Community of Navarre

    The name or business name of the ultimate parent company will also be recorded, as well as the country or territory of residence, including the Spanish NIF or the tax identification number (TIN).

    If the entity has tax identifications in other jurisdictions, this will be stated in the form. Firstly, if the entity is not resident in Spanish territory, but has a NIF assigned by the Spanish Tax Administration, it will state this in the form. For the remaining tax identifications, the country or territory of the identification, and the assigned TIN will be stated.

    Additionally, in the case of entities that have been assigned an LEI (Legal Entity Identifier) ​​code, they must include it.

    If it is a parent entity excluded based on article 7 of the Complementary Tax Law, it will be entered in the corresponding box.

    Finally, it must be indicated whether the following taxes or rules have been approved and are in force in the jurisdiction of the ultimate parent entity, and one, two, or all possible options may be indicated:

    • National complementary tax (QDMTT).

    • Qualifying Income Inclusion Rule (QIIR).

    • Undertaxed benefits rule (QUTPR).

  5. INFORMATION STATEMENT ON THE COMPLEMENTARY TAX

    This section should contain information relating to the information return of the Complementary Tax (GIR) submitted, stating the jurisdiction where it has been submitted, the reference number of the same, if it has been submitted to the Spanish Tax Administration, or the identification number of the return in the corresponding jurisdiction, and the date of submission.

  6. SUPPLEMENTARY SELF-ASSESSMENT OF THE COMPLEMENTARY TAX

    An "X" will be marked in the "Supplementary declaration" box when this declaration is complementary to another declaration or declarations previously submitted for the same concept and corresponding to the same fiscal year.

    In such a case, the supporting document number of the previous declaration must also be entered in this section. If more than one declaration has been previously submitted, the supporting document number of the last one will be recorded.

  7. TAX SETTLEMENT

    National complementary tax

    BOX 01: In this box, the amount of the national complementary tax corresponding to the taxpayer included in the declaration will be entered, calculated in accordance with the provisions of article 25 of the Complementary Tax Law.

    BOX 05: In this box, the portion of the national supplementary tax whose collection corresponds to the State in accordance with the rules of the Economic Agreement and Convention (Article 20bis.2 of Law 12/2002 and 27bis.2 of Law 28/1990) will be entered.

    Primary complementary tax

    First, the condition of the taxpayer entity that gives rise to the accrual of the primary complementary tax will be entered in the corresponding box: ultimate parent entity (UPE), intermediate parent entity (IPE), partially owned parent entity (POPE)

    BOX 02: In this box, the amount of the primary complementary tax corresponding to the taxpayer included in the declaration will be entered, calculated in accordance with the provisions of article 26 of the Complementary Tax Law.

    BOX 06: In this box, the portion of the primary supplementary tax whose collection corresponds to the State in accordance with the rules of the Economic Agreement and Convention will be entered (Article 20bis.2 of Law 12/2002 and 27bis.2 of Law 28/1990).

    Secondary complementary tax

    BOX 03: In this box, the amount of the secondary complementary tax corresponding to the taxpayer included in the declaration will be entered, calculated in accordance with the provisions of article 27 of the Complementary Tax Law.

    BOX 07: In this box, the part of the secondary supplementary tax whose collection corresponds to the State in accordance with the rules of the Economic Agreement and Convention (article 20bis.2 of Law 12/2002 and 27bis.2 of Law 28/1990) will be entered.

    Self-assessment result

    BOX 04: The result of adding the complementary, national, primary and secondary taxes accrued by the taxpayer included in the declaration will be recorded, that is, the sum of boxes 01+02+03.

    BOX 08: The portion of the national, primary and secondary complementary taxes whose collection corresponds to the State will be recorded, that is, the sum of boxes 05+06+07.

    Additional

    BOX 09: The total amount derived from the previous self-assessments submitted that correspond to the same period will be recorded. This box should only be filled in if it is a supplementary self-assessment.

    Result

    BOX 10: The result of the self-assessment being submitted will be recorded, the result of subtracting box 09 from box 08.

  8. INFORMATION ON TAXATION BY TERRITORY(only for taxpayers who pay taxes to several tax authorities)

    Taxpayers who pay taxes to several Administrations must report their percentage of taxation to Álava (box [11]), Guipúzcoa (box [12]), Vizcaya (box [13]), Navarra (box [14]), and the Common Territory (box [15]).

  9. DEPOSIT

    The amount to be paid must be entered (box “I”-Amount), equal to the amount entered in box [10] (“Settlement result”), as well as the chosen payment method (box “Payment method”).

    If the "Direct Debit of the amount to be paid" option is completed, which is only available if the tax period coincides with the calendar year (tax year type 1), form 242 must be submitted within the direct debit period for each self-assessment period.

    Likewise, in the case of payment by direct debit, the complete details of the bank account (IBAN code) of the Collaborating Entity, or those of an account opened in a non-collaborating entity within the Single Euro Payments Area (SEPA Area) must be included in the declaration. In the latter case, payment must be made through the intermediation of a collaborating entity in the collection management service.

    The procedure for making the payment of the amount resulting from the self-assessment will be that established in Order HAP/2194/2013, of November 22 (articles 6 to 11), which regulates the procedures and general conditions for the submission of certain self-assessments and information returns of a tax nature. If the direct debit is made to an account opened in a non-collaborating entity in the SEPA Zone, it will be adjusted to the provisions of article 5 bis of Order EHA/1658/2009, of June 12.

    Finally, in the case of payment by direct debit with obtaining the NRC, the Complete Reference Number must be included in the declaration.