Electoral accounting audit 2026: deadlines and obligations for political parties

Key data

Political formations competing in the general elections of November 29, 2026 already know the rules of the game for accountability. The Court of Auditors has approved the Instruction that regulates how their electoral accounting will be audited, published in the BOE on November 5, 2026. This is not a minor formality: the result of this audit directly determines whether a formation receives its electoral subsidies in full or sees them reduced — or even loses the right to receive them.

The reference standard is the Resolution of October 29, 2026 from the Presidency of the Court of Auditors, which includes the Agreement of the Plenary of the same date. Its legal basis is the elections called by the Royal Decree 806/2026.

What does this regulation establish?

The Instruction regulates the complete audit procedure for electoral accounts of the General Courts of November 29. These are its essential elements:

A relevant aspect for the legal certainty of formations is that the Court commits to publishing on its website the technical criteria it will apply during the audit. This allows those responsible for electoral administration to anticipate which aspects will be subject to greater scrutiny and prepare documentation accordingly.

Economic and operational impact

The economic impact of this Instruction is not neutral. The Court of Auditors has express authority to propose the reduction or non-award of electoral subsidies when it detects irregularities in the submitted accounting. Given that state electoral subsidies represent a relevant source of financing for any formation with parliamentary representation, an unfavorable report has direct consequences on the party's treasury.

Additionally, if the irregularities detected fit within the Organic Law on the Financing of Political Parties (LOFPP), the Court may initiate sanctioning procedures, with the reputational and economic consequences that this entails.

From an operational perspective, the requirement for exclusively electronic submission with a recognized electronic certificate means that formations must verify in advance that they have the necessary technical means: valid certificate, operational access to the Court's electronic headquarters and trained personnel to manage file uploads in the required formats (xlsx and pdf).

Who does it affect?

The obligation to submit electoral accounting falls on the following entities, provided they have obtained state subsidies or requested advances in the framework of the November 29 elections:

• Political parties competing in the elections to the General Courts of November 29, 2026
• Party federations presenting under a joint candidacy
• Electoral coalitions formed for these elections
• Groups of electors that have accessed state subsidies or advances

Formations that have not received subsidies or requested advances are outside the mandatory scope of this Instruction.

Practical example

A political party competing in the elections of November 29, 2026 in several constituencies and has requested an advance on electoral subsidy must:

1. Compile all accounting documentation from the electoral period and structure it in xlsx files according to the models that the Court of Auditors will publish on its electronic headquarters.
2. Prepare supporting documentation (invoices, contracts, expense receipts) in pdf format.
3. Ensure that the designated representative has a recognized electronic certificate and has operational access to the Court's electronic headquarters before March 9, 2027.
4. Submit all documentation between March 9 and April 3, 2027, with no possibility of doing so on paper or through in-person registration.

If during the audit the Court detects unjustified expenses or undeclared income, it may propose that the final subsidy be less than the advance — which would require the party to return the difference — or even initiate a sanctioning procedure under the LOFPP.

What should political formations do now?

1. Verify if they are obligated: Check whether the formation has received state subsidies or has requested advances for the November 29 elections. If so, submission is mandatory.
2. Review the Court's technical criteria: Consult the Court of Auditors website to access the technical criteria it will publish for this audit, and adapt the preparation of accounting to those parameters.
3. Prepare technical means: Confirm that you have a valid recognized electronic certificate and operational access to the Court of Auditors' electronic headquarters before the deadline begins (March 9, 2027).
4. Structure documentation in required formats: Accounting in xlsx and supporting documentation in pdf. No other formats or alternative channels are accepted.
5. Respect the deadline without delay: The submission window is from March 9 to April 3, 2027. Submit with sufficient margin to resolve any technical issues on the electronic headquarters.
6. Anticipate the risk of subsidy reduction: Internally review that all electoral expenses are properly justified before submission, to minimize the risk that the Court proposes a reduction in the subsidy or initiates a sanctioning procedure under the LOFPP.

Official source

Consult complete regulation in official source

Notice: This article is for informational purposes only and does not constitute legal advice. For specific decisions, consult a qualified professional. Source: https://www.boe.es/diario_boe/txt.php?id=BOE-A-2026-23178