What are the audit requirements in Austria?

Audit requirements in Austria are defined primarily by the Austrian Commercial Code (Unternehmensgesetzbuch, UGB) and the Austrian Auditing Act (Wirtschaftstreuhandberufsgesetz, WTBG). Most limited liability companies and joint-stock companies must have their annual financial statements audited by a licensed statutory auditor once they cross certain size thresholds. The obligation is not universal - smaller entities are exempt - but the rules are precise, and misjudging your company';s status carries real legal and financial risk. This guide covers who must be audited in Austria, what the audit process involves, how costs are structured, and what happens when companies fail to comply.

The UGB establishes a size-based framework for determining which companies must undergo a statutory audit. The framework uses three criteria: total assets, annual turnover and average number of employees. A company that exceeds two of these three thresholds in two consecutive financial years is classified as a medium or large company and becomes subject to mandatory audit.

Small companies that fall below all three thresholds in two consecutive years are generally exempt from the statutory audit obligation. However, the exemption is not automatic for all legal forms. A Gesellschaft mit beschränkter Haftung (GmbH) and an Aktiengesellschaft (AG) are the two most common entity types affected, and their obligations differ in important ways.

An AG is always subject to mandatory audit regardless of size. This is a structural requirement rooted in the Austrian Stock Corporation Act (Aktiengesetz, AktG), which reflects the higher public accountability expected of joint-stock companies. A GmbH, by contrast, is only audited if it meets the size criteria or if its articles of association require it voluntarily.

Public interest entities (PIEs) - a category that includes listed companies, credit institutions and insurance undertakings - face the most stringent audit requirements. They must appoint a statutory auditor annually, rotate the audit firm after a maximum engagement period, and comply with additional EU-level requirements under Regulation (EU) No 537/2014 on specific requirements for statutory audits of PIEs.

Partnerships and sole traders are generally not subject to mandatory statutory audit under the UGB, though they may be subject to tax audits conducted by the Austrian tax authority (Finanzamt).

Understanding the precise thresholds is essential for any foreign founder or CFO planning their Austrian entity structure. The UGB sets out three criteria, and a company must exceed at least two of them in two successive financial years to qualify as medium-sized or large.

The three criteria relate to:

• Total balance sheet assets above a defined level
• Annual net turnover above a defined level
• Average number of employees exceeding 50 during the financial year

In practice, the employee count threshold is often the first to be triggered by growing companies. Many foreign-owned subsidiaries in Austria underestimate how quickly headcount growth can push them into the mandatory audit category, particularly when staff from related entities are counted under consolidated group rules.

A common mistake is assuming that the thresholds apply to a single financial year. The UGB requires that a company exceed two of the three criteria in two consecutive years before the obligation arises, and conversely, a company must fall below the thresholds for two consecutive years before it can exit the mandatory audit category. This two-year rule prevents companies from gaming the system by temporarily reducing their figures.

A non-obvious requirement is that companies forming part of a group may be assessed on a consolidated basis for certain purposes, which can pull smaller subsidiaries into audit obligations that would not apply to them on a standalone basis.

Once a company is subject to mandatory audit, the process follows a structured sequence governed by the UGB and the WTBG. The supervisory board (Aufsichtsrat) or, where no supervisory board exists, the shareholders'; meeting, is responsible for appointing the statutory auditor. The appointment must be made before the end of the financial year being audited.

The auditor must be a licensed Wirtschaftsprüfer (certified public accountant) registered with the Austrian Chamber of Tax Advisors and Public Accountants (Kammer der Steuerberater und Wirtschaftsprüfer, KSW). Only individuals and firms on the KSW register are legally permitted to conduct statutory audits in Austria. Appointing an unlicensed auditor renders the audit legally void.

The audit itself covers the annual financial statements prepared under Austrian GAAP (UGB-Rechnungslegung) or, for consolidated group accounts, under IFRS as adopted by the EU. The auditor examines whether the financial statements give a true and fair view of the company';s financial position and whether the management report (Lagebericht) is consistent with the financial statements.

After completing the audit, the auditor issues an audit opinion. The opinion can be unqualified, qualified, adverse or a disclaimer of opinion, depending on the findings. The audit report and the signed financial statements must then be filed with the Austrian Companies Register (Firmenbuch) within nine months of the balance sheet date. Late filing triggers automatic penalties.

In practice, founders should consider engaging the auditor well before the financial year-end. Auditors in Austria are in high demand during the first half of the calendar year, and leaving the appointment until after year-end can cause delays that result in filing penalties.

Audit fees in Austria are not regulated by a statutory tariff. They are negotiated between the company and the audit firm based on the complexity of the engagement, the size of the company and the quality of the underlying accounting records. For a straightforward medium-sized GmbH, professional fees for a statutory audit typically start from the low thousands of EUR and rise significantly for larger or more complex entities.

Several factors drive cost variation:

• Quality and completeness of the company';s bookkeeping and internal controls
• Number of subsidiaries or related-party transactions requiring additional procedures
• Whether the company applies Austrian GAAP or IFRS
• Whether the auditor must also audit the consolidated group accounts
• Urgency of the engagement and the time available before the filing deadline

Hidden costs often arise from the preparation phase. Companies with disorganised accounting records spend considerable time - and therefore money - bringing their books into a state that allows the audit to proceed efficiently. Many underestimate the cost of responding to auditor queries, which can require significant management time and, in some cases, additional advisory fees.

For PIEs, the costs are materially higher. Mandatory audit committee oversight, enhanced auditor reporting requirements and the obligation to tender the audit engagement periodically all add layers of cost and administrative burden that do not apply to non-PIE companies.

If you are structuring an Austrian entity and want to understand how to manage audit costs from the outset, contact info@vlolawfirm.com. We can help structure the setup correctly the first time.

Failure to comply with audit requirements in Austria carries concrete legal consequences. The UGB and the Firmenbuchgesetz (Companies Register Act) give the Firmenbuch court the authority to impose fines on companies and their managing directors for failure to file audited financial statements on time.

Fines are applied per managing director and per financial year of non-compliance. They can be imposed repeatedly until the company remedies the breach. In serious cases, the court can appoint a special auditor at the company';s expense, and persistent non-compliance can be reported to the public prosecutor.

Beyond formal penalties, non-compliance creates practical business risks. Austrian banks routinely request audited financial statements as part of credit assessments. A missing or late audit can delay or block financing. Foreign parent companies may also face group-level reporting problems if their Austrian subsidiary fails to deliver audited figures on time.

A common mistake made by foreign-owned subsidiaries is treating the Austrian audit as a formality that can be deferred while other priorities are addressed. In practice, the Firmenbuch court monitors filing deadlines systematically, and the first fine can arrive within weeks of a missed deadline.

Directors of Austrian companies should also be aware that the audit obligation is a personal responsibility. A managing director who knowingly allows the company to operate without a required audit may face personal liability in the event of insolvency proceedings, particularly if creditors can show that timely audited accounts would have revealed the company';s financial difficulties earlier.

Not every audit in Austria is mandatory. Companies below the statutory thresholds may commission a voluntary audit for a range of legitimate business reasons: to satisfy a foreign parent';s group reporting requirements, to support a financing application, to prepare for a sale process, or simply to strengthen internal governance.

A voluntary audit conducted by a licensed Wirtschaftsprüfer carries the same professional standards as a statutory audit, even though it is not legally required. The audit report can be used for the same purposes as a statutory report, and the findings carry the same evidentiary weight in commercial disputes.

For groups with an Austrian subsidiary, the group auditor appointed at the parent level often coordinates with the local Austrian auditor. Under EU audit rules and Austrian implementation legislation, the group auditor bears responsibility for the group audit opinion and must be able to rely on the work of component auditors. This means the Austrian subsidiary';s auditor must cooperate with the group auditor, share working papers and respond to queries - obligations that add time and cost to the local engagement.

A practical scenario: a US-headquartered technology company establishes an Austrian GmbH as its European sales hub. The subsidiary initially falls below the size thresholds and is exempt from statutory audit. As headcount grows past 50 and turnover rises, the company crosses two of the three UGB criteria in consecutive years and becomes subject to mandatory audit. The parent';s group auditor then requires the Austrian auditor to perform procedures aligned with PCAOB standards, adding cost and complexity beyond what a purely domestic Austrian audit would involve.

A second scenario: a family-owned Austrian GmbH below the mandatory threshold voluntarily commissions an annual audit to support a planned bank loan. The audited accounts allow the bank to offer more favourable terms, and the audit fee is effectively offset by the lower interest rate achieved.

What happens if an Austrian company misses the audit filing deadline?

The Firmenbuch court monitors filing deadlines and can impose fines on the company and its managing directors without prior warning. Fines are applied per director and can be repeated for each period of continued non-compliance. Beyond the financial penalty, a missing audit creates problems with banks, investors and group reporting. The most effective remedy is to engage an auditor immediately and file as quickly as possible, accompanied by a written explanation to the court if the delay was caused by exceptional circumstances.

How long does a statutory audit typically take in Austria?

The timeline depends heavily on the size and complexity of the company and the quality of its accounting records. For a straightforward medium-sized GmbH with clean books, the fieldwork phase typically takes several weeks, followed by reporting and sign-off. The entire process from engagement to signed audit opinion commonly takes two to four months. Companies that leave the appointment late or have disorganised records should expect the process to take longer, which increases the risk of missing the nine-month filing deadline.

Can a foreign audit firm conduct the statutory audit of an Austrian company?

No. Only auditors and audit firms registered with the Austrian KSW are legally permitted to conduct statutory audits of Austrian companies. A foreign audit firm - even one from another EU member state - must be registered in Austria and meet local licensing requirements before it can sign an Austrian statutory audit opinion. In practice, the major international networks operate through locally licensed Austrian member firms, which is the standard arrangement for multinational groups. A foreign parent';s group auditor cannot sign the Austrian statutory audit opinion directly.

Austria';s audit requirements are precise, threshold-driven and enforced through the Firmenbuch court system. Companies that cross the UGB size criteria, all AGs and all public interest entities face mandatory statutory audit by a licensed Wirtschaftsprüfer. Non-compliance carries personal liability for directors and practical consequences for financing and group reporting.

VLO Law Firms advises international clients on audit requirements in Austria. We can assist with assessing your company';s audit obligations, coordinating with licensed Austrian auditors, and ensuring timely Firmenbuch filings. To request a consultation, contact: info@vlolawfirm.com