Gestoría guides

The country-by-country report: form 231 and prior notification

Last updated 22 September 2026 · Reviewed by Jaime Piñeira Pardo, lawyer registered with the ICAM bar, no. 138826 · English version of our Spanish guide.

The short answer

Form 231 is the informative return used by a multinational group with a turnover of €750 million or more to report its figures per jurisdiction to Hacienda (the Spanish tax authority). It is submitted within 12 months of the year-end. Before closing, every Spanish group entity must notify who will submit it and where. Managora prepares and submits both procedures for you.

We handle the whole procedure for you, from start to finish.

You describe your case in a chat and sign; we file it with the Spanish authorities. Fixed price from €250.00 (21% VAT included), plus the tasa (official fee) where there is one.

See the procedure

What is new, and the law that applies

  • Ley 7/2024, de 20 de diciembre, del Impuesto Complementario (Law 7/2024, of 20 December, on the Complementary Tax) (BOE of 21 December 2024, in force since 22 December 2024): its transitional safe harbour regime turns the country-by-country information into the basis for not having to calculate the complementary tax jurisdiction by jurisdiction. The transitional period covers tax periods starting from 31 December 2023 to 31 December 2026, with a transitional rate of 17% for those starting in 2026.
  • Real Decreto 252/2025, de 1 de abril (Royal Decree 252/2025, of 1 April): approves the Regulations for the Complementary Tax and develops the associated notification, informative return and self-assessment obligations.
  • Orden HAC/1198/2025, de 21 de octubre (Order HAC/1198/2025, of 21 October) (BOE of 29 October 2025): approves forms 240, 241 and 242 for the Complementary Tax. The transitional campaign referring to the 2024 tax period closed on 30 June 2026, so that in 2026 form 231 and the new Pillar Two circuit coexist for the first time with data that can be contrasted with each other.
  • Public report on corporation tax: the obligation introduced in the Ley de Auditoría de Cuentas (Account Auditing Act) applies to financial years starting on or after 22 June 2024. It is approved with the annual accounts within the 6 months following the close and is deposited in the Mercantile Registry alongside them within the month following approval. For groups with a calendar financial year, the first is that of the 2025 financial year.
  • Form 231 continues to be governed by Orden HFP/1978/2016, de 28 de diciembre (Order HFP/1978/2016, of 28 December), with the modifications of Orden HAC/941/2018 (Order HAC/941/2018) and Orden HAC/1285/2020 (Order HAC/1285/2020). The content of the report and the €750 million threshold have not changed in 2026.
  • In January 2026 the OECD Inclusive Framework agreed on a package that extends the transitional safe harbour for the country-by-country report by 1 year and maintains the 17% rate also for 2027. As of the date of this guide, that agreement has not been incorporated into Ley 7/2024, so the deadline that binds in Spain continues to be that of the periods starting up to 31 December 2026.

What is the country-by-country report and who has to submit form 231?

The country-by-country report is a tax x-ray of the entire group: for each country or jurisdiction where the group operates, the administration receives what is invoiced there, what is earned there and what is paid in taxes there. It is not a tax and does not involve a fee to pay: it is information, and it is submitted using form 231.

The obligation only exists when the net turnover of the set of persons and entities forming the group, in the 12 months prior to the start of the tax period, reaches at least €750 million. Below that figure there is no form 231, no matter how international the group is.

The natural obliged party is the entity resident in Spain that is the parent of the group and does not depend in turn on another entity, resident or not. This is the case of a Spanish group with subsidiaries abroad.

The Spanish subsidiary, or the permanent establishment in Spain, of a non-resident parent company may also be obliged, but only if 1 of 3 circumstances occurs: that in the parent's country there is no equivalent obligation to report country by country, that despite an international agreement there is no automatic exchange agreement for this information between competent authorities, or that despite having one there has been a systematic failure that the Spanish administration has communicated to the Spanish entity.

Even if any of these circumstances occur, the Spanish entity is released if the group has designated a group entity resident in a European Union Member State to submit the information, or if another non-resident entity appointed as a surrogate of the parent has already submitted it in its territory of residence, provided that, being outside the European Union, it meets the European equivalence conditions. And if there are several group subsidiaries in Spain and 1 of them has been designated, only that one submits it.

A territorial warning: if your tax domicile is in the Basque Country or Navarre, the country-by-country information is governed by its own regional regulations and is submitted to the corresponding regional tax authority, using its own form. The figures in this guide are those for the common territory.

Why does your Spanish subsidiary have to make the prior notification even if it does not submit form 231?

This is the confusion that generates the most files. Any entity resident in Spain that is part of a group obliged to submit country-by-country information must notify the tax administration of the identification and the country or territory of residence of the entity that will prepare it. The obligation is yours even if the report is submitted by the parent company in Frankfurt, Milan or New York.

The deadline is different from the report's deadline, and therein lies the trap: the prior notification must be made before the end of the tax period to which the information refers. For a financial year ending on 31 December 2026, the notification expires on 31 December 2026, while form 231 for that same financial year does not expire until 31 December 2027.

It is submitted via a form on the electronic headquarters of the Tax Agency, using an electronic certificate, electronic DNI or Cl@ve (the Spanish state electronic identification system). It can be done jointly: a single group entity submits the notification on behalf of all Spanish entities, identifying each one with its NIF (tax identification number), and with that the obligation of all of them is fulfilled.

The notification identifies the group, the entity obliged to prepare the information and its country of residence. It is repeated every year: it is not a registration that is valid forever.

If the non-resident parent company ever refuses to provide you with the group's data, the obliged Spanish entity must expressly request it and, in the event of a refusal, submit the information it has available and notify the administration of this circumstance. Staying silent is not an option.

What data must be declared for each jurisdiction?

Form 231 refers to the tax period of the parent entity and is submitted aggregated for each country or jurisdiction, not entity by entity. The amounts are in euros.

For each jurisdiction, the group's gross income is declared, distinguishing that obtained with related entities from that obtained with third parties; the profit before Corporation Tax or similar taxes; the tax paid, including withholdings borne; the tax accrued, also with withholdings; the capital figure and other undistributed profits at the close; the average workforce; and tangible assets and real estate investments other than cash and credit rights.

To this is added the list of entities resident in each jurisdiction, with their permanent establishments and the main activity of each one, and a free section for any relevant information or to explain the data included. That free section is not decorative: it is where figure jumps that, without explanation, seem like an inconsistency are justified.

The figures come from the group's consolidation, and here it is advisable to be prudent, because the same data travels along 3 paths: the report that your parent company submits in its country, the one you submit in Spain and the one that is later exchanged between administrations. All 3 must tell the same story.

What deadlines apply and when does your report reach other administrations?

Form 231 can be submitted from the day following the end of the tax period to which the information refers and until 12 months have elapsed since that close. For a financial year coinciding with the calendar year, that means the entire following year, expiring on 31 December.

The prior notification expires earlier: on the last day of the declared tax period itself.

Submission is exclusively electronic, via web service or form, at the electronic headquarters of the Tax Agency, using an electronic certificate, electronic DNI or Cl@ve.

Once received, the report does not stay in Spain. European automatic exchange regulations require it to be communicated to other administrations within 15 months of the last day of the group's fiscal year, and 18 months when it is the first report. In other words: a piece of data that does not add up does not stay in a drawer at the Tax Agency, it reaches the administration of every country where the group operates.

It is advisable to fit these deadlines with the rest of the company's calendar: form 200 for Corporation Tax is submitted from 1 to 25 July when the financial year closes on 31 December, and form 232 for related-party transactions and transactions with tax havens, from 1 to 30 November of the year following the financial year and without extension. They are different returns from 231 and none replaces the others.

What role does the country-by-country report play in the Pillar Two safe harbours?

Here is the fundamental change of recent financial years. Form 231 has ceased to be a statistical obligation to become the piece that decides whether or not your group is exempt from the full calculation of the Complementary Tax.

Ley 7/2024 del Impuesto Complementario (Law 7/2024 on the Complementary Tax) subjects multinational groups and large-scale domestic groups with €750 million in consolidated turnover in at least 2 of the 4 previous tax periods to a minimum taxation level of 15% in each jurisdiction. Calculating it jurisdiction by jurisdiction is expensive, and that is why there is a transitional safe harbour that relies precisely on country-by-country information.

That transitional safe harbour operates during tax periods starting from 31 December 2023 to 31 December 2026. For a jurisdiction and a period, the complementary tax will be zero if just 1 of these 3 criteria is met: that the group's gross income there is €10 million or less and the profit before tax is €1 million or less; that the simplified effective tax rate of the jurisdiction equals or exceeds the transitional rate for the period, which is 15% for periods starting in 2023 and 2024, 16% for those starting in 2025 and 17% for those starting in 2026; or that the profit before tax does not exceed the substance-based income exclusion of that jurisdiction. The first and third criteria are also considered met when the result is zero or negative.

The entry condition is that there is an admissible country-by-country report, prepared and submitted to the administration with acceptable financial statements and received by the Spanish tax administration. If the report is not admissible, or if the jurisdiction's figures do not withstand the contrast, the safe harbour falls away and the group is forced to do the detailed calculation of the Complementary Tax in Spain.

That is why today a careless form 231 is much more expensive than the fine: it takes away the shortcut.

How does form 231 differ from the published country-by-country report?

They are 2 different obligations that get confused because they are called almost the same and share the €750 million threshold. It is advisable to separate them in the internal calendar.

Form 231 is confidential: it goes to the Tax Agency and is exchanged between administrations, it is not published. The other is the report on corporation tax regulated in the Ley de Auditoría de Cuentas (Account Auditing Act), and it is public.

The public report must be prepared by the ultimate parent company subject to Spanish law that formulates consolidated accounts and has exceeded €750 million in consolidated turnover in each of the last 2 consecutive financial years. It also reaches Spanish subsidiaries of parent companies not subject to the law of a Member State and branches in Spain of non-EU companies, with exceptions for small entities and for groups operating in a single tax territory.

The mechanics are corporate, not tax-related, and the deadlines are chained: the report is approved with the annual accounts within the first 6 months following the close of the financial year and is deposited in the Mercantile Registry, together with the documents that make up the annual accounts, within the month following that approval, so that the deposit can arrive up to 7 months after the close. Furthermore, it must be kept accessible free of charge on the website for at least 5 years. The responsibility for this happening lies with the administrative body.

This obligation applies to financial years starting on or after 22 June 2024, so that for a group with a financial year coinciding with the calendar year, the first public report is that of the 2025 financial year.

What happens if it is not submitted or is submitted with errors?

Form 231 and the prior notification are informative returns, and they are covered by the general penalty regime for these returns. Failure to submit on time is penalised with €20 for each piece of data or set of data referring to the same person or entity that should have been included, with a minimum of €300 and a maximum of €20,000.

If you go ahead and submit out of time without the administration having required you to do so, the penalty and both limits are reduced by half. That margin disappears as soon as the requirement arrives, so in the face of an oversight the sensible thing is to submit now.

Submitting incompletely, inaccurately or with false data, when it comes to data expressed in monetary magnitudes, is penalised with up to 2% of the amount of the undeclared or incorrectly declared operations, with a minimum of €500, according to a scale that rises as the weight of the error over the total that should have been declared grows.

Even so, the penalty is not the main risk. The main risk is losing the Pillar Two safe harbour due to an inconsistency, and it is that the administration of another country receives a report from the Spanish one that does not match what your group declared there.

Managora prepares and submits the prior notification and form 231 to the Tax Agency for you, squares the figures with your form 200 for Corporation Tax and with form 232 for related-party transactions, and checks that the report withstands the contrast of the safe harbours. If the case has a fundamental doubt that should be closed before declaring, we also draft and submit a binding written consultation to the Directorate General for Taxation: the law sets a 6-month deadline for a reply, although in complex matters the administration usually takes longer, and the lack of a response within that period does not equate to a favourable reply. When it arrives, the reply binds the administration in the terms of the consultation raised. You can see the updated amount for each service on its file.

Step by step

  1. 1

    Check if the group exceeds the €750 million threshold(At the start of the tax period)

    Take the net turnover of the set of group entities in the 12 months prior to the start of the tax period. If it reaches €750 million, there is a country-by-country report that period. It is an annual check, not a fixed label.

  2. 2

    Determine who submits the report and in which country(Before the close of the financial year)

    Confirm in writing with the parent company whether it submits in its jurisdiction, whether the group has designated a European Union entity or whether it has appointed a surrogate entity. Whether your Spanish entity only notifies or also submits depends on that answer.

  3. 3

    Submit the prior notification(Before the end of the tax period to which the information refers)

    Form at the electronic headquarters of the Tax Agency, with a certificate, electronic DNI or Cl@ve, identifying the group, the entity obliged to prepare the information and its country of residence. If the group has several entities in Spain, a single joint notification can be submitted identifying them all by their NIF.

  4. 4

    Gather the data by jurisdiction(During the months following the close)

    Gross income separating related parties from third parties, profit before tax, tax paid and tax accrued with their withholdings, capital and undistributed profits, average workforce, tangible assets and real estate investments, and the list of entities with their main activity. All in euros.

  5. 5

    Square the report with the consolidation and with Pillar Two(Before submitting)

    Contrast the figures with the consolidated financial statements, with what the parent company will declare in its country and with the 3 criteria of the transitional safe harbour. Document in the relevant information section any jump that needs explanation.

  6. 6

    Submit form 231(Up to 12 months from the end of the tax period)

    Electronic submission at the headquarters of the Tax Agency, via web service or form. It can be submitted from the day following the close of the declared tax period.

  7. 7

    File the receipt and prepare for the following year(Immediately after submitting)

    Keep the submission receipt with its secure verification code, both for the notification and for the form. Note in the calendar the prior notification for the current financial year, which expires before the report for the previous financial year.

A worked example

Multinational group with a financial year coinciding with the calendar year and an ultimate parent resident in Spain. Consolidated group turnover in 2025: €820 million. The 2026 tax period is analysed, with 2 jurisdictions outside Spain: jurisdiction A and jurisdiction B.

  • Threshold: €820 million in the 12 months prior to the start of the tax period, above the €750 million. The group is obliged to the country-by-country information for the 2026 period.
  • Prior notification for the 2026 period: it must be submitted by 31 December 2026, identifying the Spanish parent as the entity obliged to prepare the report.
  • Form 231 for the 2026 period: it can be submitted from 1 January 2027 and up to 31 December 2027.
  • Automatic exchange: the Tax Agency forwards the report to the other administrations within the 15 months following the close, that is, up to 31 March 2028.
  • Safe harbour in jurisdiction A: group's gross income there of €8.4 million and profit before tax of €0.7 million. 8.4 million does not exceed 10 million and 0.7 million does not exceed 1 million, so the de minimis criterion is met.
  • Safe harbour in jurisdiction B: profit before tax of €4 million and simplified covered taxes of €0.68 million. 0.68 divided by 4 is 0.17, that is, a simplified effective tax rate of 17%, equal to the transitional rate for periods starting in 2026.

With those figures, the group submits the prior notification before 31 December 2026 and form 231 throughout 2027, and jurisdictions A and B are left with zero complementary tax in the 2026 period without the need for the full calculation. If the report were not admissible or the figures did not square, both safe harbours fall away and the Complementary Tax would have to be calculated jurisdiction by jurisdiction.

Form 231 and prior notification: who, when and where

ObligationWho fulfils itDeadlineWhere
Prior notificationAny entity resident in Spain that is part of an obliged group, even if it does not submit the report. It can be submitted jointly by several Spanish entitiesBefore the end of the tax period to which the information refersForm at the electronic headquarters of the Tax Agency, with a certificate, electronic DNI or Cl@ve
Form 231The ultimate parent resident in Spain and, in the specified cases, the designated subsidiary or the permanent establishment in SpainFrom the day following the close of the tax period and up to 12 months laterElectronic headquarters of the Tax Agency, via web service or form
Sending the report to other administrationsThe Tax Agency does it, not the company15 months from the last day of the fiscal year, and 18 months for the first reportAutomatic exchange between competent authorities
Public report on corporation taxUltimate parent company subject to Spanish law, and certain subsidiaries and branches of groups from outside the European UnionApproval with the annual accounts within the 6 months following the close and deposit within the month following approval (up to 7 months from the close)Deposit in the Mercantile Registry with the annual accounts and publication on the website for 5 years

What is declared in form 231 for each country or jurisdiction

DataDetail
Group's gross incomeDistinguishing that obtained with related entities from that obtained with third parties
Profit before taxBefore Corporation Tax or taxes of an identical or similar nature
Tax paidCorporation Tax or similar actually paid, including withholdings borne
Tax accruedCorporation Tax or similar accrued, including withholdings
Capital and undistributed profitsCapital figure and other undistributed profits at the date of conclusion of the tax period
WorkforceAverage workforce of the jurisdiction
Tangible assetsTangible assets and real estate investments other than cash and credit rights
EntitiesList of resident entities, their permanent establishments and the main activity of each one
Relevant informationAny additional data and the explanation of the figures included
CurrencyThe information is submitted in euros

Pillar Two transitional safe harbour based on the country-by-country report

Criterion (meeting 1 is enough)What it requiresPeriods to which it applies
De minimisGroup's gross income in the jurisdiction equal to or less than €10 million and profit before tax equal to or less than €1 million. It is also met if the result is zero or negativeTax periods starting from 31 December 2023 to 31 December 2026
Simplified effective tax rateSimplified covered taxes divided by the profit before tax of the jurisdiction, equal to or greater than the transitional rate for the period: 15% in those starting in 2023 and 2024, 16% in those starting in 2025 and 17% in those starting in 2026The transitional rate corresponds to the year the period starts
Routine profitsProfit before tax equal to or less than the substance-based income exclusion of that jurisdiction. It is also met if the result is zero or negativeTax periods starting from 31 December 2023 to 31 December 2026

General penalty regime for informative returns

ConductPenalty
Failure to submit on time€20 for each piece of data or set of data referring to the same person or entity, with a minimum of €300 and a maximum of €20,000
Submitting out of time without prior requirementThe penalty and limits are reduced by half: minimum €150 and maximum €10,000
Submitting with incomplete, inaccurate or false monetary dataUp to 2% of the amount of the undeclared or incorrectly declared operations, with a minimum of €500

Spanish ultimate parent versus Spanish subsidiary of a foreign parent

Ultimate parent resident in SpainSubsidiary or permanent establishment of a non-resident parent
Who submits form 231The parent itself, to the Tax AgencyAs a general rule, the parent submits it in its country. The Spanish entity only submits if 1 of the 3 specified cases occurs
Prior notificationYes, it must also be doneYes, always, even if it does not end up submitting the report
Report deadline12 months from the end of the tax period12 months from the end of the tax period, when it is obliged
Effect of designating another entityNot applicable: the ultimate parent is the obliged partyIt is released if the designated one resides in a European Union Member State or if a surrogate entity already submitted it in its territory
If there are several group entities in SpainThe parent submits for the groupIf the group designates 1 of them, only that one submits, unless it cannot obtain all the necessary information
If it cannot get the group's dataIt has the consolidated information availableIt must request it from the parent and, in the event of a refusal, submit the information it has available and notify the administration
Main riskThat the figures do not square with the consolidation and the Pillar Two safe harbour falls awayForgetting the prior notification by assuming that the parent already covers everything

Official forms and where it is filed

Frequently asked questions

Our parent company is in Germany and submits the country-by-country report there. Do we have to do anything in Spain?

Yes. The Spanish subsidiary does not submit form 231, but it is obliged to make the prior notification: it must inform the Tax Agency of the identity of the entity preparing the report and its country of residence, before the end of the tax period to which the information refers. It is the most forgotten obligation and the one that generates the most penalties.

We have 4 Spanish companies in the group. Does each one submit its prior notification?

It is not necessary. One group entity can submit a joint notification on behalf of the other entities resident in Spain, identifying each one with its NIF, and with that the obligation of all of them is fulfilled. What must be done is to repeat it every year.

We missed the prior notification for the previous financial year. What do we do now?

Submit it as soon as possible, without waiting for the Tax Agency to require anything. When the out-of-time submission is made without a prior requirement, the penalty and its minimum and maximum limits are reduced by half. As soon as the requirement arrives, that reduction is lost. Managora prepares and submits it for you.

Does form 231 replace form 232 for related-party transactions?

No. They are different informative returns, with different obliged parties, contents and deadlines: 232 is submitted from 1 to 30 November of the year following the financial year, without extension, and looks at your related-party transactions and those carried out with tax havens. 231 looks at the group's aggregated figures by jurisdiction. A large group normally submits both.

Can we be penalised if the report arrives with errors even if we do not stop paying taxes?

Yes. It is an informative return, so the penalty does not depend on there being an unpaid tax quota. Submitting incomplete, inaccurate or false monetary data can reach up to 2% of the amount of the undeclared or incorrectly declared operations, with a minimum of €500. The greatest cost, in any case, is losing the Pillar Two safe harbour.

Our foreign parent company refuses to provide us with the group's data. What can we do?

The obliged Spanish entity must formally request that information from the parent company. If the parent company refuses to supply all or part of the data, the Spanish entity submits the information it has available and notifies the tax administration of this circumstance. Failing to submit is not a valid alternative.

How long does a binding consultation to the Directorate General for Taxation take?

The legal deadline for a reply is 6 months, although in complex matters the administration usually exceeds it, and the passing of that period without a response does not mean that the consultation is understood to be answered in your favour. When the reply arrives, it binds the administration in the terms of the consultation raised. Managora drafts and submits it for you.

We handle the whole procedure for you, from start to finish.

You describe your case in a chat and sign; we file it with the Spanish authorities. Fixed price from €250.00 (21% VAT included), plus the tasa (official fee) where there is one.

See the procedure

Related procedures

The price, the tasa (official fee) and the current deadlines are on each procedure page.

Related guides

Share this guide

If you found it useful, chances are someone you know needs it right now.