Foundation Audit Requirements in Switzerland 2026: Thresholds, Filings and Compliance Calendar

Foundation audit requirements switzerland sit at the centre of every Swiss foundation board’s annual governance cycle, and 2026 raises the stakes with the phased arrival of Switzerland’s new federal register of beneficial owners, introduced by the Federal Act on the Transparency of Legal Entities and the Identification of Beneficial Owners (referred to in practice as the transparency/beneficial-ownership framework). This guide is written for foundation boards, trustees, CFOs, family offices and administrators who must decide whether their foundation needs an ordinary audit, a limited audit or qualifies for exemption, and who now have to consider whether new transparency duties apply to them as part of their year-end routines.

The interaction between accounting close, statutory audit thresholds under the Code of Obligations, supervisory filings and the emerging transparency duties makes 2026 a year in which discipline over the compliance calendar matters more than ever. Below you will find a practical summary of thresholds and exemptions, a comparison table, worked calculation examples, supervisory filing steps across major cantons, a 2026 compliance calendar and an action checklist grounded in Swiss law.

Quick summary, audit thresholds at a glance

Swiss foundations are, as a starting point, subject to a statutory audit duty. The nature of that audit, ordinary audit, limited audit, or exemption, depends on the size of the foundation measured against thresholds derived from the Code of Obligations, together with the discretion of the competent supervisory authority. The essential points are as follows:

• Ordinary audit. Larger foundations that cross the statutory size thresholds must undergo a full ordinary audit conducted by a state-supervised or qualified auditor.
• Limited audit (limited review). Foundations below the ordinary-audit thresholds are, by default, subject to a lighter-touch limited audit.
• Exemption (“opting out”). Small foundations meeting specific conditions may, with supervisory consent, be released from the audit duty altogether, provided the required documentation is maintained.

The detailed numbers, worked examples and exemption mechanics follow in the sections below, along with how the new transparency and beneficial-ownership framework may affect governance workflows.

Foundations and the law, the legal basis for reporting and supervision

Swiss foundations are governed primarily by the Swiss Civil Code (ZGB), which sets out how a foundation is created, the requirement that it pursue a defined purpose, and the principle that every foundation is placed under the supervision of a public authority. Supervision is allocated between the Confederation and the cantons depending on the geographic and material scope of the foundation’s activity: foundations of national or international reach are typically supervised at federal level, while foundations whose activity is confined to a canton fall under cantonal supervision.

At federal level, the Federal Supervisory Authority for Foundations (attached to the Federal Department of Home Affairs) supervises federally supervised foundations, and the Federal Office of Justice publishes guidance on foundation and company law more broadly.

The supervisory authority’s role is not merely registrational. It exists to ensure that the foundation’s assets are used in accordance with the founder’s stated purpose and that the governing board discharges its fiduciary duties. In discharging that mandate, the authority reviews the annual accounts and the auditor’s report, may request additional information, and holds intervention powers where it identifies deficiencies. This is why the audit and reporting cycle is not a purely internal exercise: the outputs are addressed to, and scrutinised by, a public body.

Accounting obligations sit alongside the ZGB framework and derive from the Code of Obligations (OR), which contains the general Swiss commercial accounting rules applicable to legal entities. These accounting provisions determine how annual accounts must be kept and presented, and they feed directly into the audit-threshold analysis. Understanding foundation audit requirements switzerland therefore means reading the ZGB (purpose and supervision) and the OR (accounting and audit) together, because the two regimes interlock.

Audit thresholds, rules, numbers and examples

The trigger between an ordinary audit and a limited audit is governed by the size criteria set out in the Code of Obligations (Art. 727 et seq. CO, applied to foundations via Art. 83b ZGB). Under the OR framework, an entity must submit its financial statements to an ordinary audit where, in two successive financial years, it exceeds two of three size thresholds: a balance-sheet total, a level of revenue (turnover), and a number of full-time equivalent employees on annual average. Entities that do not exceed those thresholds are, by default, subject only to a limited audit. These criteria form the backbone of foundation audit requirements switzerland.

The following comparison table maps the criteria to typical foundation profiles. The precise CHF figures must be verified against the current text of the Code of Obligations before you rely on them for a specific case, because the thresholds are set by statute and periodically adjusted, and the OR is the controlling source.

Three points deserve emphasis. First, the test is cumulative and requires the thresholds to be exceeded in two consecutive financial years, so a single unusual year does not automatically push a foundation into an ordinary audit. Second, the employee criterion is measured as full-time equivalents on annual average, which matters for foundations that engage part-time or seasonal staff. Third, a supervised foundation cannot escape audit merely because it is below the thresholds; the supervisory authority retains the power to require an audit regardless of size, as explained below.

How to calculate the thresholds, practical worked examples

The following anonymised, fictitious examples illustrate how the analysis works in practice. In each case, apply the three OR criteria across two successive financial years.

• Example 1, small family foundation. A family foundation holds a modest securities portfolio, distributes small annual grants, and has no employees. Its balance-sheet total and turnover are well below the OR thresholds, and it has zero full-time equivalents. It exceeds none of the three criteria, so it is subject to a limited audit by default, and, if it meets the strict opting-out conditions and secures supervisory consent, it may qualify for exemption.
• Example 2, small charitable foundation. A grant-making charity employs a part-time administrator (0.5 FTE), holds a moderate endowment and receives regular donations. It sits below the ordinary-audit thresholds on all three measures, so it undergoes a limited audit. Because it has an employee and receives third-party donations, boards typically retain the limited audit rather than pursue exemption, for reputational and donor-confidence reasons.
• Example 3, large grant-making foundation. A national grant-making foundation holds a substantial endowment, deploys significant annual grant budgets and employs a team of full-time staff. It exceeds two of the three OR thresholds in two consecutive years, for instance, the balance-sheet total and the employee count, and must therefore commission an ordinary audit. It cannot opt out, and it must appoint an appropriately qualified, independent auditor.

These examples show why the threshold test should be re-run every year: a foundation that grows its endowment or hires staff can cross into ordinary-audit territory, while one that winds down activity may move in the other direction. Documenting the calculation in the board minutes is good practice and part of prudent foundation audit requirements switzerland compliance.

Audit exemptions and what they require

The Code of Obligations allows the smallest entities to waive the limited audit, commonly called “opting out”, where they do not exceed a defined, very small number of full-time equivalents on annual average and where the decision is taken with the consent of those entitled to decide. For foundations, the position is more restrictive than for ordinary companies because the foundation is subject to public supervision, and any release from the audit duty is a matter for the competent supervisory authority. In practice, a foundation seeking exemption must satisfy the statutory size condition and obtain the authority’s agreement; the authority will assess whether an audit is nonetheless warranted to protect the foundation’s purpose and assets.

Where exemption is available and granted, the board must maintain a clear documentary record. This typically includes:

• A formal board resolution recording the decision to opt out of the audit, the legal basis relied upon, and confirmation that the size condition is met.
• Evidence supporting the full-time equivalent calculation for the relevant years.
• Correspondence with, and consent from, the supervisory authority.
• The annual accounts themselves, which must still be prepared and submitted to the authority even where no auditor’s report is produced.

An important limitation is that exemption is not automatic and is not open to every small foundation. The audit exists to protect beneficiaries and to reassure the supervisory authority, so where a foundation receives public donations, manages significant assets held for a charitable purpose, or has a governance history that warrants scrutiny, the authority may decline to release it from the audit obligation even if the numerical condition is met.

When a supervisory authority can require an audit

Even where a foundation would otherwise qualify for a limited audit or exemption, the supervisory authority has discretionary power to require a fuller audit or to appoint an auditor. The authority may exercise this power where it has concerns about the accuracy of the accounts, the use of foundation assets, related-party transactions, or the adequacy of internal controls. Boards should treat this as a live possibility rather than a theoretical one: a request from the authority for an audit takes precedence over the board’s own assessment of the thresholds. Maintaining transparent accounts and responsive communication with the authority reduces the likelihood of a discretionary audit order.

Annual accounts and accounting standards

Foundations required to keep accounts must prepare annual financial statements in accordance with the Code of Obligations, which sets the minimum content and presentation rules for Swiss legal entities. Under the OR, the annual accounts generally comprise a balance sheet, an income statement and notes, prepared in accordance with recognised commercial accounting principles and giving a true and fair view of the foundation’s financial position appropriate to its size and activity.

While the OR sets the statutory floor, many foundations, particularly larger grant-making and charitable foundations, choose to prepare their accounts under Swiss GAAP FER (including FER 21 for charitable, social non-profit organisations), which offers a more detailed and transparent presentation tailored to non-profit reporting. This is not mandatory in every case, but it is frequently recommended where the foundation seeks to demonstrate accountability to donors, beneficiaries and the public, or where the supervisory authority expects a higher standard of disclosure.

Boards should also be alert to consolidation questions where the foundation controls subsidiary entities, and to the interaction between the annual accounts and the foundation’s tax position, since accounts submitted to the supervisory authority may also inform the tax administration’s assessment of the foundation’s tax-exempt charitable status.

Whatever standard is adopted, the accounting close is the operational anchor of the annual cycle. It produces the figures against which the audit thresholds are tested, the statements that the auditor reviews, and the documents that must be filed with the supervisory authority. Getting the close right, and on time, is the foundation of sound foundation audit requirements switzerland compliance.

Supervisory filings, what to file, when and who to notify

After the accounts are finalised and, where required, audited, the foundation must file its reporting package with the competent supervisory authority. The core of the filing is the annual report together with the annual accounts, and, where an audit or limited audit has been performed, the auditor’s report. The supervisory authority reviews the package to confirm that the foundation is being administered in accordance with its purpose and that its assets are being applied correctly.

A practical document checklist for the annual supervisory filing typically includes:

• The signed annual accounts (balance sheet, income statement and notes).
• The annual activity report describing how the foundation pursued its purpose.
• The auditor’s report, where an ordinary audit or limited audit was performed.
• Where relevant, the board resolution documenting an audit exemption and the supervisory authority’s consent.
• Updated governance information, including changes to the board or the foundation’s statutes.

Filing timing and procedure vary across cantons, so foundations supervised at cantonal level should confirm the deadline and format with their specific authority. The major cantons illustrate the point: foundations under supervision in Zurich, Geneva and Vaud each interact with a cantonal or intercantonal foundation supervisory authority that publishes its own procedural guidance and contact points. Federally supervised foundations file with the Federal Supervisory Authority for Foundations. Because deadlines and formats differ, boards should build the correct cantonal or federal deadline into their compliance calendar rather than assume a uniform national date.

Transparency and beneficial-owner data, emerging obligations

A significant development for the coming years is the introduction of Switzerland’s federal register of beneficial owners under the Federal Act on the Transparency of Legal Entities and the Identification of Beneficial Owners, together with related anti-money-laundering measures. The purpose of the register is to record who ultimately owns or controls legal entities, aligning Switzerland with international transparency expectations. Where a foundation is in scope, the regime requires it to identify and record beneficial-ownership information, to keep that information current, and to update the register when relevant circumstances change.

The scope of application to foundations, the transitional periods and the exact filing mechanics should be confirmed against the enacted legislation and official implementation guidance, because the regime is being phased in and details continue to be clarified.

The rationale for these obligations is grounded in international standards. The Financial Action Task Force (FATF) sets out standards for beneficial-ownership transparency for legal persons, emphasising that authorities must have access to adequate, accurate and up-to-date information and that such information should be updated promptly when ownership or control changes. The OECD similarly promotes beneficial-ownership transparency as a governance and anti-corruption measure. These standards explain why the Swiss regime places continuing, not merely one-off, obligations on in-scope entities.

The practical takeaway is that, where applicable, beneficial-ownership maintenance should be treated as a standing agenda item rather than an annual afterthought, because updates are event-driven. Boards should confirm the precise scope, data fields, filing mechanics and deadlines with the official federal guidance before finalising their internal procedures. The enacted statutory text and implementation guidance should be treated as the controlling source, and any internal checklist should carry a “last reviewed” date because the details will continue to be clarified as the regime beds in.

Compliance calendar 2026, quarterly and year-end checklist

The following calendar assumes a 31 December financial year-end, which is a common pattern for Swiss foundations. Adjust the timing where your foundation uses a different year-end. The calendar sequences the accounting close, the audit or limited audit, the supervisory filing and any beneficial-ownership updates so that they reinforce rather than collide with one another. Building this rhythm into the board timetable is the practical heart of foundation audit requirements switzerland compliance.

The calendar makes two things visible. First, the threshold test should be revisited every year, not treated as settled, because a change in assets or staffing can shift the required audit level. Second, where the transparency regime applies, beneficial-ownership review recurs through the year, reflecting the event-driven nature of the obligation rather than a single annual filing.

Common pitfalls and remediation

Several recurring errors expose foundations to supervisory criticism. Recognising them early allows boards to fix them before they escalate.

• Late or missed beneficial-ownership updates. Because the register regime is event-driven, in-scope boards that only review beneficial-ownership data annually risk holding stale records. Remediation: introduce a standing agenda item, update records promptly on any change, and keep a dated update log.
• Insufficient minutes for an audit exemption. A bare decision to opt out, without evidence of the threshold calculation and the supervisory authority’s consent, is inadequate. Remediation: adopt a full board resolution recording the legal basis and the FTE calculation, and retain the authority’s consent on file.
• Incorrect accounting classification. Misclassifying restricted funds, grants or endowment capital can distort both the accounts and the threshold test. Remediation: reconcile classifications against the applicable accounting standard and, where transparency matters, consider preparing accounts under Swiss GAAP FER.
• Missing cantonal deadlines. Assuming a single national filing date leads to late filings in cantons with earlier deadlines. Remediation: record the specific cantonal or federal deadline in the compliance calendar and set an internal reminder well ahead of it.

Where a deficiency has already occurred, prompt self-correction and transparent communication with the supervisory authority are the most effective remediation steps. A board that identifies and corrects an error, documents the correction, and notifies the authority is in a far stronger position than one that waits for the authority to raise it.

Practical next steps for boards and CFOs

To translate this guidance into action, boards and CFOs can work through the following plan over the next 90 days and into the coming year:

1. Re-run the audit-threshold test for the two most recent financial years and record the conclusion in the minutes.
2. Confirm whether the foundation should be on an ordinary audit, a limited audit, or a documented exemption, and align the auditor engagement accordingly.
3. Map the correct supervisory filing deadline, cantonal or federal, into a written compliance calendar.
4. Assess whether the foundation is in scope of the beneficial-ownership register regime, assign responsibility for any records required, and set a recurring review cadence.
5. Review the accounting standard used and consider Swiss GAAP FER where enhanced transparency is warranted.
6. Adopt template board resolutions for audit-exemption decisions and, where relevant, beneficial-ownership updates so that documentation is consistent year on year.

Executed together, these steps embed foundation audit requirements switzerland into the board’s operating rhythm and reduce the risk of supervisory intervention.

Conclusion

Foundation audit requirements switzerland have always demanded discipline over the accounting close, the correct audit level and timely supervisory filing, and the new federal transparency and beneficial-ownership framework adds a continuing duty that in-scope boards must weave into that same cycle. The practical path is straightforward: re-run the threshold test each year, document exemption decisions properly, file with the correct cantonal or federal authority on time, and, where the register regime applies, treat beneficial-ownership updates as a standing responsibility rather than an annual afterthought. Boards and CFOs that build these steps into a single compliance calendar will meet their obligations with confidence and reduce the risk of supervisory intervention.

For tailored advice on your foundation’s audit position, exemption eligibility or transparency readiness, consult a qualified Swiss foundations adviser before finalising your 2026 approach.

Sources

1. Swiss Civil Code (ZGB), Foundations
2. Swiss Code of Obligations (OR), Accounting and Auditing
3. Federal Supervisory Authority for Foundations
4. Federal Office of Justice
5. Fedlex, Federal register of beneficial owners (transparency legislation)
6. FATF, Standards on Beneficial Ownership Transparency for Legal Persons
7. OECD, Beneficial Ownership Transparency Resources
8. Swiss Bar Association (Fédération Suisse des Avocats)