Important tax deadlines as of 30 September 2025

We would like to inform you that the deadline of 30 September 2025 has to be considered for a number of tax aspects.

1) Avoidance of interest payments on additional tax payments

Irrespective of the point of submission of the corporate income tax return for 2024, interest on underpaid tax (currently 3,53 %) will apply from 1 October 2025 to any corrective payments for corporate income tax for 2024. In order to avoid paying interest on underpaid tax, we recommend making an advance payment in the amount of the likely corrective payment for corporate income tax by 30 September 2025.

Please state the corresponding payment reference (“K 1-12/2024”) when making advance payments of corporate income tax, in order to ensure correct allocation of the payment.

2) VAT interest from the 2024 assessment

Interest on VAT of currently 3,53 % is charged on VAT credits and claims (underpaid VAT) as long as an assessment notice covering the filing period has not yet been issued. VAT credits based on a tax assessment resulting from an annual VAT return, insofar as an excess has been claimed, shall bear interest from the 91st day after the receipt of the annual return until the notification of the assessment.

However, additional claims (underpaid VAT) due to a tax assessment as a result of the submission of the 2024 annual VAT return will also be subject to interest from October 1, 2025, until the notice of assessment is issued. We therefore recommend finalizing the annual VAT return 2024 as soon as possible in case of an additional VAT claim.

3) Applications for reduction of mandatory advance payments of corporate income tax

Will the mandatory advance tax payments for 2025 exceed the tax payable on your expected taxable income in 2025? If so, it is possible to apply for a reduction of the mandatory advance payments for 2025 at the latest until 30 September 2025. In addition to stating the amount of the reduction requested, a transparent internal forecast of the expected income in 2025 has to be sent to the tax office.

For groups of companies within the meaning of Section 9 Austrian Corporate Income Tax Act (KStG), the application for reduction of tax payments filed by the group parent must take account of all group companies.

If the tax return for 2024 is submitted and assessed before 30 September 2025, the advance payments for corporate income tax will be automatically adjusted for the current year as well as for the following year. In the event of a lower company result, it is therefore possible to reduce the mandatory advance payments of corporate income tax.

4) Reduction of the minimum corporate income tax

Due to the reduction of the statutory minimum amount of nominal capital for `GmbHs` and `FlexCos` (flexible corporations) from EUR 35,000 to EUR 10,000, the annual minimum corporate income tax will amount to EUR 500 per year (EUR 125 per month) from 2024. The minimum corporate income tax for Banks and Insurances remains the same.

5) Disclosure of annual financial statements for standard financial years

In order to avoid fines in the course of coercive measures, the annual financial statements must be disclosed in a timely manner to the court responsible for the commercial register.

Legal representatives of corporations, capital partnerships (e.g. GmbH & Co KG) or branches of foreign corporations are obliged to disclose the annual financial statements to the court responsible for the commercial register within nine months from the balance sheet date at the latest. The disclosure of annual financial statements 2024 for regular business years must be made by September 30, 2025 (9 months after the balance sheet date).

The extent of the disclosure obligations and reporting requirements depend on the size and legal form of the company. It should be noted that the existing formal requirements for the electronic transmission of annual financial statements data have been amended and that new requirements regarding the structure and form of submission have generally applied since 1 March 2025.

For the annual financial statements as of 31 December 2024, there is a transitional provision according to which they can still be submitted (in a structured manner) via FinanzOnline, as in previous years.

If the submission is not made on time, a fine of between EUR 700.00 and 3,600.00 will normally be imposed. It should be taken into account that the fine will be imposed not only on the company itself, but on each of its legal representatives additionally.

Legal obligations for Austrian permanent establishments:

• In accordance with Section 280a Austrian Business Code (UGB), disclosure of the annual financial statements as at 31 December 2024, which have been prepared, audited and disclosed under the national law applicable to the parent company, must be made by 30 September 2025 at the latest.
• In addition, branches of financial institutions also have to publish audited disclosures in accordance with Section 44 para 4 Austrian Banking Act (BWG).
• Permanent establishments can waive the disclosure of their annual financial statements if the required documents are accessible through the Business Register Interconnection System (BRIS) in German or in a language commonly used in international financial circles. This eliminates the obligation to publish in the Austrian commercial register.

6) Input VAT refund within the EU

Austrian companies intending to claim back input taxes paid in another EU Member State for the year 2024 have to submit the application via the FinanzOnline system by 30 September 2025 at the latest. As it can take time for notifications of errors to be issued, we recommend filing the application several days before the deadline in order to guarantee timely submission.

Before submitting the application, please check whether copies of the invoices need to be attached to the refund application and what form these should take.

Otherwise, the Tax Office may deem the application as not submitted and it may not be possible to resubmit it after the deadline.

7) Reporting requirements for reorganisations

Retroactive reorganisations as at 31 December 2024 have to be reported by 30 September 2025 and a notification must be sent to the responsible Tax Office. Generally speaking, both the transferor and the transferee are subject to reporting requirements.

As of this year, such a report must be submitted electronically and in a structured manner via FinanzOnline using the reorganization form. Please take into account that business registrations have to be received by the responsible court by the final day before the deadline at the latest.

For contributions, mergers (Zusammenschlüsse), and demergers under tax office jurisdiction that are agreed upon or contractually signed after June 30, 2025, the new Reorganization Notification Regulation (UmgrMV) must be applied. If a domestic tax number is present, the notification must be submitted electronically through FinanzOnline.

By submitting the structured notification, the reporting obligation of the notifying taxpayer is automatically fulfilled. The reporting obligation of the other reorganization partners can also be fulfilled through a combined notification/announcement if appropriate authorization is provided.

The structured notification must include all mandatory information and documents (e.g. contribution agreement, contribution balance sheet).

Should you require support on any of these issues, we are available to support you at any time. Please note that this is a general information that cannot replace individual consultation.