The application of the global minimum tax in Hungary has reached another important milestone: the Hungarian tax authority has made the extended version of the 24GLBADO return available. The significance of this form lies in the fact that, unlike previous practice, it now serves not only as an advance tax return, but also as the final return for the top-up tax and as an IIR return. The document can be submitted exclusively via the ONYA platform, further strengthening the role of electronic administration in Hungary.
What does this mean for companies?
The essence of the regulation remains unchanged: the global minimum tax aims to ensure an effective tax rate of at least 15% for large corporate groups. To achieve this, the Hungarian system applies the Qualified Domestic Minimum Top-up Tax (QDMTT), ensuring that income generated in Hungary is subject to an appropriate level of taxation. Preparing the 24GLBADO return is not merely an administrative task; it is also a complex calculation and data management challenge.
Key deadline
As a general rule, the final top-up tax return ensuring the global minimum tax level must be submitted and paid within 15 months from the last day of the relevant tax year. However, since 2024 is considered a transitional year, the filing and reporting obligations for the 2024 tax year must be fulfilled within 18 months after the end of the tax year when dealing with Hungary.
- Deadline for taxpayers with standard financial year: 30 June 2026
- Submission method: Hungarian Online Form Completion Application (ONYA)
- Type of return: combined advance and final 24GLBADO return
Practical challenges
Based on experience, compliance affects several areas simultaneously. The most common tasks include:
- collecting and harmonising consolidated financial data,
- managing different accounting standards,
- determining the effective tax rate by jurisdiction,
- establishing new reporting and data collection processes.
As a result, the global minimum tax requires significant organisational preparation not only from a tax perspective, but also from financial and IT perspectives in Hungary.
Legal background
The Hungarian regulation is based on Act LXXXIV of 2023 on ensuring the global minimum tax level in Hungary. The law defines in detail the calculation of the top-up tax as well as the related filing and reporting obligations, in line with the OECD Pillar Two framework and the EU directive.
Why is it important to address this now?
Accurate preparation is crucial for companies. A late or incorrect 24GLBADO return may result in:
- tax risks,
- penalties,
- and reputational risks.
The availability of the 24GLBADO return clearly indicates that the global minimum tax system is already in the operational phase in Hungary. Companies must therefore not only interpret but actively apply the rules.
The introduction of the 24GLBADO return takes the Hungarian practice of global minimum taxation to a new level. In order to meet the 30 June 2026 deadline, it is advisable to start data collection and prepare internal processes now, with expert support if necessary. The tax consulting team of WTS Klient Hungary is at your disposal!
This article is for general information purposes only and should not be considered as advice.
