Dutch BV Audit Thresholds: When Is an Audit Required?

The four size categories under Title 9 BW2

Every Dutch BV falls within the scope of Title 9, Book 2 of the Dutch Civil Code (BW2). Unlike foundations and associations, there’s no threshold question about whether Title 9 applies. It always does. The question is which size category the BV falls into, because the reporting and audit obligations differ significantly between categories.

The classification depends on total assets (balanstotaal), net turnover (netto-omzet), and average number of employees during the financial year. A BV qualifies for a size category when it meets at least two of the category’s criteria on two consecutive balance sheet dates.

The current thresholds, applicable for financial years starting on or after 1 January 2024:

Micro and small BVs have no statutory audit obligation. They also benefit from reduced publication requirements. A small BV can file an abbreviated balance sheet and is exempt from preparing a management board report and a cash flow statement. Medium and large BVs must have their financial statements audited by a registered auditor under article 2:393 BW2.

The practical implication is binary. If your BV qualifies as small, no audit. If it qualifies as medium or large, a statutory audit is mandatory. The threshold between small and medium is the line that matters.

How the two-consecutive-year test works

The two-year test is where most of the real-world complexity sits. A BV doesn’t become medium-sized the moment it crosses two of the small thresholds. It becomes medium-sized when it has crossed two of the small thresholds on two consecutive balance sheet dates.

Consider a BV with the following trajectory:

• 2023 balance sheet date: total assets €8.1M, turnover €14.2M, employees 41. Exceeds the small threshold on assets only (one out of two). Still small.
• 2024 balance sheet date: total assets €9.3M, turnover €16.8M, employees 47. Exceeds on assets and turnover (two out of two). This is the first year of exceeding two thresholds.
• 2025 balance sheet date: total assets €10.1M, turnover €18.2M, employees 52. Exceeds on all criteria. Second consecutive year.

The BV becomes medium-sized from the 2025 financial year. The statutory audit obligation applies to the 2025 financial statements. This means the BV needs an auditor appointed before or during 2025, not after the year-end when the obligation is already triggered.

The reverse works identically. If a medium-sized BV drops below the thresholds (exceeding only one criterion instead of two) for two consecutive years, it reverts to small and the audit obligation falls away. One year below the line is not enough. The BV must stay below for two consecutive years to shed the obligation.

A newly established BV presents a special case. Article 2:395a(2) BW2 allows classification based on the first balance sheet date alone. If a new BV exceeds two of the small thresholds at its first balance sheet date, it qualifies as medium-sized immediately and requires an audit for that first financial year. There is no grace period.

The 2024 threshold increase: what changed and what didn’t

The European Commission adopted Delegated Directive (EU) 2023/2775 on 17 October 2023, raising the monetary size criteria by approximately 25% to account for eurozone inflation since the thresholds were last set in 2013. The Netherlands implemented this through the Implementatiebesluit Richtlijn verhoging grensbedragen, a decree dated 5 March 2024.

Only total assets and net turnover were affected by the increases. Employee thresholds stayed the same. Before the update, the small/medium boundary sat at total assets €6 million and net turnover €12 million. After the update: €7.5 million and €15 million. That’s a meaningful shift.

In practice, some BVs that qualified as medium-sized under the old thresholds now qualify as small under the new ones. A BV with total assets of €7M and turnover of €13M exceeded two of the old small thresholds (assets >€6M and turnover >€12M). Under the new criteria, this same BV sits below both monetary thresholds and qualifies as small. No audit required.

Early adoption was permitted by the Dutch government. Entities could apply the new thresholds for financial years starting on or after 1 January 2023. For a BV that was borderline medium under the old criteria and wanted to avoid the audit obligation (and the cost that comes with it), applying the new thresholds a year early was an obvious move.

If your client applied the new thresholds early for 2023 and dropped from medium to small, they could avoid the 2023 audit. But the decision had to be consistent. You can’t cherry-pick old thresholds for one year and new thresholds for the next to game the two-year test.

Consolidation and group structures: where the assessment gets complicated

The size classification must generally be assessed on a consolidated basis when the BV has subsidiaries or is part of a group. Article 2:396(2) BW2 requires the BV to include the total assets, net turnover, and employees of its subsidiaries and group companies in the size assessment.

This catches holding BVs off guard regularly. A holding BV with €500,000 in standalone assets, no revenue, and one employee looks like a micro entity. But if it holds 100% of an operating BV with €12M in assets, €20M in turnover, and 80 employees, the consolidated position pushes the holding BV into the medium category. The audit obligation then applies to the holding BV’s own financial statements (unless the article 2:403 exemption is used).

The definition of subsidiary under Dutch law is broad. Article 2:24a BW2 defines a subsidiary as a legal entity in which the parent can exercise more than 50% of the voting rights at the general meeting, or can appoint or dismiss more than half of the managing or supervisory directors. A partnership where the BV is a general partner also qualifies.

Group companies are defined even more broadly under article 2:24b BW2. An entity is a group company if it belongs to an economic unit with central management. This can include entities where the BV holds less than 50% of the voting rights but exercises dominant influence through other means (management agreements or contractual arrangements).

For international groups, the question becomes whether a Dutch intermediate holding BV must be assessed using the worldwide group figures. The answer depends on whether the Dutch BV itself qualifies as a parent company with consolidation obligations under article 2:406 BW2. If it does, the size assessment uses the consolidated figures. If the Dutch BV’s own parent (in Germany, the UK, or elsewhere) already consolidates the full group and the conditions of article 2:408 BW2 are met (the sub-consolidation exemption), the Dutch BV may be exempt from consolidation and the size assessment reverts to standalone figures.

Careful reading of the BV’s group structure chart pays off here. A single intermediate holding BV can go from “clearly micro on a standalone basis” to “medium-sized on a consolidated basis” depending on which exemptions apply and whether the parent company’s consolidation meets the BW2 requirements.

The article 2:403 group exemption

Article 2:403 BW2 provides a frequently used exemption from the standalone audit obligation. If a parent entity consolidates the BV’s financial data into its own consolidated financial statements, and the parent issues a written declaration accepting joint and several liability for the BV’s debts (the 403-verklaring), the BV is exempt from its own standalone audit and most publication requirements. It can file a minimal balance sheet with the KVK instead.

All conditions are cumulative. The parent must prepare consolidated financial statements that include the BV. Those consolidated financial statements must themselves be audited. The 403-verklaring must be filed with the KVK. And the BV’s shareholders must consent to the use of the exemption at the general meeting, with the consent recorded in the minutes.

Don’t treat the 403-verklaring as a formality. It creates a genuine liability exposure for the parent. Any creditor of the BV can claim against the parent under the declaration. Withdrawing the declaration requires a formal procedure (article 2:404 BW2) with a two-month objection period for creditors. Directors should understand this before agreeing to it.

For audit firms, the 403 exemption doesn’t eliminate audit work entirely. It shifts it. The subsidiary’s financial data must be included in the parent’s consolidation, which means the group auditor (or component auditor under ISA 600 ) still needs to perform procedures on the BV’s financial information. The work gets done at the group level rather than the entity level, but it still gets done.

Worked example: Kuiper Vastgoed B.V.

Scenario: Kuiper Vastgoed B.V. is a Rotterdam-based real estate development company. The managing director, Jan Kuiper, wants to know whether the company needs a statutory audit for the 2025 financial year. Kuiper Vastgoed holds 100% of Kuiper Projecten B.V. (a project company) and 60% of Kuiper Wonen B.V. (a residential rental entity).

1. Gather the standalone and subsidiary figures

Kuiper Vastgoed B.V. standalone: total assets €4.2M, net turnover €1.8M, employees 6.

Kuiper Projecten B.V.: total assets €5.9M, net turnover €11.3M, employees 22.

Kuiper Wonen B.V.: total assets €8.4M, net turnover €3.1M, employees 14.

Documentation note: record all standalone figures in the engagement acceptance workpaper with source references (draft annual accounts or management accounts for each entity).

2. Determine whether consolidation applies

Kuiper Vastgoed holds >50% of the voting rights in both subsidiaries (100% in Projecten, 60% in Wonen). Both are subsidiaries under article 2:24a BW2. Kuiper Vastgoed must assess its size on a consolidated basis.

Documentation note: record the ownership percentages, confirm subsidiary status under article 2:24a BW2, and note that no sub-consolidation exemption under article 2:408 BW2 applies (Kuiper Vastgoed has no foreign parent with its own consolidation).

3. Calculate the consolidated figures

Consolidated total assets (after elimination of intercompany positions, estimated): €16.8M.

Net turnover on a consolidated basis: €16.2M.

Average employees across all entities: 42.

Documentation note: include the consolidation worksheet showing how standalone figures combine. Note that intercompany eliminations reduce total assets from the simple sum. Turnover is additive since the entities operate in different segments with minimal intercompany revenue.

4. Apply the size criteria

Check against the small thresholds: total assets €16.8M > €7.5M (exceeds). Net turnover €16.2M > €15M (exceeds). Employees 42 < 50 (does not exceed). Two out of two monetary thresholds exceeded. Kuiper Vastgoed exceeds the small classification.

Confirm against the prior year (2024): consolidated total assets were €15.1M, consolidated turnover was €14.8M, employees were 39. In 2024, only assets exceeded (one out of two). The two-consecutive-year test is not yet met for the 2025 financial year because only one year (2025) shows two exceedances.

Documentation note: record the two-year comparison. Conclusion: Kuiper Vastgoed B.V. does not yet require a statutory audit for 2025 because the two-consecutive-year condition under article 2:397 BW2 is not satisfied. If the 2026 figures also exceed two thresholds, the audit obligation begins with the 2026 financial year.

5. Advise the client on preparation

Jan Kuiper needs to know that the BV is one year away from a likely audit obligation. Recommend that Kuiper Vastgoed begins preparing its accounting records, internal controls, reporting processes, and supporting documentation to audit-ready standards during 2026. Advise on auditor selection timing: the general meeting should appoint an auditor before the 2026 financial year-end to avoid delays.

Documentation note: include the forward-looking assessment in the management letter or advisory communication. Flag the anticipated change in classification with the expected timeline.

A reviewer would see: consolidated size assessment covering both years, clear documentation of which thresholds are exceeded, the two-year test applied correctly with the conclusion that the obligation is anticipated but not yet triggered, and proactive client communication.

What happens when the thresholds are crossed: practical preparation

The year before the audit obligation kicks in is the most important one. A BV that discovers it needs an audit after the financial year has closed faces compressed timelines and incomplete records during peak season.

From the director’s perspective, preparation means ensuring the accounting records can withstand audit scrutiny. That includes reconciled bank accounts, a clean trial balance, proper revenue recognition documentation, and complete fixed asset registers. For BVs that have never been audited, the transition from “good enough for tax filing” to “audit-ready” often requires upgrading the accounting function. In-house bookkeepers who have never interacted with auditors need time to understand what documentation will be requested.

From the auditor’s perspective, the engagement acceptance assessment for a first-time audit client requires particular care. ISA 510.6 requires the auditor to obtain sufficient appropriate evidence about opening balances. If the prior year was unaudited, the auditor must perform procedures on opening balances that go beyond agreeing to the prior year financial statements. This includes verifying the existence and valuation of assets carried forward, confirming that accounting policies were applied consistently, checking for unrecorded liabilities, and testing for misstatements in the opening position that could affect the current period. For a BV with significant property holdings (common in the Netherlands), the opening balance work on real estate valuations alone can be substantial.

The general meeting of shareholders (AVA) appoints the auditor under article 2:393(2) BW2. If the AVA has not appointed an auditor, the supervisory board may do so. If no supervisory board exists, the managing directors (bestuurders) may make the appointment. The appointment should happen before the start of the financial year to which the audit relates, not after.

Practical checklist

Common mistakes

• Assessing size on a standalone basis when subsidiaries exist. A holding BV with €500K in assets and no employees looks like a micro entity until you consolidate the operating subsidiaries underneath it. Article 2:396(2) BW2 requires consolidated assessment. The NBA’s practice note on group audits has flagged this as a recurring issue in engagement acceptance reviews.
• Treating the threshold crossing as immediate. A BV that exceeds two thresholds for the first time in 2025 does not need an audit for 2025. It needs to check whether the same two thresholds were exceeded in 2024. Only if both years show the exceedance does the obligation arise. Accepting an engagement based on a single year’s figures without checking the prior year is a common acceptance error.
• Ignoring the early adoption option for the 2024 thresholds. BVs that were borderline medium under the old criteria (assets between €6M and €7.5M, or turnover between €12M and €15M) could apply the new thresholds to the 2023 financial year. If the engagement team didn’t consider this, the client may have undergone an audit that wasn’t legally required.

Related content

• Glossary: Performance materiality. Once the audit obligation is confirmed, setting materiality correctly for a first-time audit requires particular attention to the opening balance risk under ISA 510 .
• Financial Ratio Calculator. Use this to track a BV’s trajectory across multiple years and flag when the size thresholds are likely to be breached based on growth trends.
• Dutch Foundation (Stichting) Audit Requirements. Foundations face a different threshold question entirely: they must first determine whether Title 9 applies at all, based on whether they operate a commercial enterprise with €6M+ turnover.

Related tools and reading

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Frequently asked questions

Further reading and source references

• BW2 Title 9 (Boek 2, Titel 9): The statutory framework for Dutch financial reporting and audit obligations.
• EU Delegated Directive 2023/2775: The directive raising the monetary size criteria by approximately 25%, effective from financial year 2024.
• Implementatiebesluit Richtlijn verhoging grensbedragen (5 March 2024): The Dutch implementation decree for the new thresholds.
• ISA 510 : Opening balances. Relevant for first-time audit engagements of BVs crossing the threshold.
• ISA 600 : Group audits. Relevant for the component audit work that continues under the article 2:403 exemption.