The end of the year is approaching, bringing with it a series of tasks, choices, and deadlines. We would like to assist you by preparing a checklist to ensure that the closing of the financial year and the preparation for the expected changes go as smoothly as possible.
Data reporting and tax payment obligations and business decision deadlines
1–20 November 2025 – Establishment of group taxation
Within this
time window, it is possible to submit the application for establishing
corporate group taxation for 2026.
20 November 2025 – GloBE QDMTT advance payment
For the first time this year, by 20 November, the advance payment of the domestic top-up tax recognized under the global minimum tax rules (GloBE QDMTT) for the 2024 tax year must be declared and paid (for calendar-year taxpayers).
1 December 2025 – Taxpayment in euros or dollars
If you wish to pay your corporate and/or local business tax in euros or US dollars, you can make this decision no later than 31 December – in the case of calendar-year taxation. Your choice applies for the entire following tax year and can be submitted using the NAV’s standardized notification form for this purpose.
LeitnerLeitner’s consultants approach your company’s unique and specific issues with a comprehensive mindset while remaining practical. Therefore, you can be confident that whichever of the listed deadlines, obligations, or choices affect you, your matter is in safe hands!
31 December 2025 – Transfer pricing country-by-country report, masterfile, benchmarks
At the end of the year, it is worth paying attention to several transfer pricing-related deadlines.
If the Hungarian company is responsible for preparing the CbCR (Country-by-Country Report) or the related notification (data submission to NAV), the deadline is 31 December. If the master file is prepared by the ultimate parent company, the document for the Hungarian group member for the 2024 tax year must also be available by 31 December.
It is worth
reviewing the previously used benchmarks: if adjustments are needed,
this can affect transfer prices, the invoice, the results, and the tax payable.
Paying attention before the year-end pays off, helping you avoid transfer
pricing adjustments and the increase of the tax base to the median.
31 December 2025 – Transition to KIVA
For smaller
companies (in terms of both headcount and financial data), it is worth
considering which tax regime is more favorable for them. One option is to
switch from corporate income tax to the small business tax (KIVA). Although
this can be chosen at any time during the year, due to administrative tasks, it
may be practical to time the transition for year-end. KIVA status comes into
effect on the first day of the month following the notification, while the
rules for termination without a legal successor apply to corporate income tax.
If a company wishes to fall under KIVA from 1 January 2026, the
notification must be submitted in December of this year. The day of the
transition marks the beginning of a new business year, while an accounting
report and tax return must be prepared for the closed business year. Proper
timing can therefore reduce administrative burdens and prevent duplication of
closing tasks.
31 December 2025 – Filing and payment of retail tax advance for platform operators
The general filing and payment deadlines for the retail tax differ for certain taxpayers according to the special rules applicable from the beginning of 2025. Normally, the deadline for submitting the tax return and paying the tax is May 31, while the deadlines for filing and paying the advance tax are July 20 and October 20.
At the same
time, if a taxpayer newly starts retail activity, they must notify the tax
authority within 15 days from that date and submit their advance tax return
simultaneously.
Since, due
to the new rules, platform operators and certain foreign online sellers only
became liable to tax this year, they were supposed to register as taxpayers
with the tax authority by January 15. Their advance tax must be paid in two
equal instalments: simultaneously with registration and by the last day of the
tax year. For them, and for all those who started their operations during the
year, the deadline for paying the advance tax is December 31.
February 28, 2026 – GloBe filings
The GloBe report for 2025, indicating whether a company is subject to the GloBE top-up tax, and the presentation of the multinational or large domestic corporate group must be submitted by calendar year taxpayers by February 28
May 31, 2026 – Corporate tax, local business tax, retail tax filing andpayment, financial statements, transfer pricing documentation, public CbCR
Calendar-year taxpayers must publish their financial statements and file their corporate tax, local business tax, and retail tax returns by May 31. The master file for transfer pricing documentation must be available at the same time as the corporate tax return is submitted, except when the master file is prepared by the ultimate parent company. In the latter case, the final deadline is the last day of the 12th month of the year following the tax year.
The
so-called public CbCR is a new reporting obligation. In 2025, those obliged
must publish, for the first time, a report containing corporate tax information
(public CbCR) simultaneously with their annual financial statements, and they
must ensure public access to it on their website for five consecutive years.
June 30, 2026 – GloBe: QDMTT, Information Return (GIR)
Those who have newly become subject to the domestic top-up tax can submit their local top-up tax return for 2024 by June 30. If no other member of the corporate group files it elsewhere, this is also the deadline for submitting the group-level GloBE Information Return (GIR).
The tax package for 2026 was released for public consultation at the beginning of October 2025. This autumn’s package includes amendments affecting multiple types of taxes and is currently under parliamentary review. It is advisable to follow the changes included in it and prepare for them in a timely manner.
