Review Year-End Deadlines and Tasks with Us – Key Obligations and Opportunities for the 2025/2026 Year-End

As the year-end approaches, businesses face a series of tasks, choices, and deadlines. We’ve prepared a checklist to help ensure a smooth year-end closing and preparation for upcoming changes.

Key Reporting, Tax, and Business Decision Deadlines:

1–20 November 2025 – Group Taxpayer Registration

Applications for establishing group corporate taxpayer status for 2026 can be submitted during this window.

20 November 2025 – GloBE QDMTT Advance Payment

For calendar-year taxpayers, the advance payment of the Qualified Domestic Minimum Top-up Tax (QDMTT) under the GloBE rules for the 2024 tax year must be filed and paid by this date.

1 December 2025 – Option to Pay Taxes in EUR or USD

Companies wishing to pay corporate and/or local business taxes in euros or US dollars must make this choice by 1 December 2025. The election applies for the entire following tax year and must be submitted via NAV’s dedicated form.

31 December 2025 – Transfer Pricing: Country-by-Country Report, Master File, Benchmarks

Year-end brings multiple transfer pricing deadlines.  If the Hungarian company is responsible for preparing the CbCR or related notification to NAV, the deadline is 31 December. If the Master File is prepared by the ultimate parent company, the Hungarian group member must have the 2024 document available by 31 December. Review previously used benchmarks, as adjustments may impact transfer prices, financial statements, results, and taxes. Early attention helps avoid transfer pricing corrections or median-based tax adjustments.

31 December 2025 – KIVA Election

Smaller companies should evaluate whether switching from corporate tax to the small business tax (KIVA) is advantageous. To be effective from 1 January 2026, the election must be filed in December 2025. Proper timing reduces administrative burden and avoids duplication of year-end closing tasks.

31 December 2025 – Retail Tax Advance for Platform Operators

For new platform operators or online sellers, the tax advance must be filed and paid in two equal installments: upon registration and by 31 December.

28 February 2026 – GloBE Reporting

Calendar-year taxpayers must submit their GloBE notifications for 2025, indicating whether they are subject to the GloBE top-up tax and identifying their multinational or large domestic group.

31 May 2026 – Corporate, Local Business, and Retail Taxes; Financial Statements; Transfer Pricing Documentation; Public CbCR

Calendar-year taxpayers must submit tax returns and financial statements. The Master File must be available with the corporate tax return unless prepared by the ultimate parent company, in which case the final deadline is 31 December following the tax year.
The new public CbCR reporting obligation requires eligible companies to publish corporate tax information alongside their annual report, ensuring public access for five consecutive years.

30 June 2026 – GloBE: QDMTT and Information Return (GIR)

Entities newly subject to the domestic minimum top-up tax must submit their 2024 QDMTT return by this date. If no other group member submits it elsewhere, the group-level GloBE Information Return (GIR) is also due.

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Upcoming 2026 Tax Package
The 2026 tax package was released for public consultation in early October 2025. It includes amendments affecting multiple taxes and is currently under parliamentary review. Companies should monitor these changes and prepare accordingly.