Mobile executives: securing the tax domicile

The executive who manages their company from several countries is no longer an exception. Remote meetings, business trips, family established elsewhere, asset holding, mandate in a foreign company: mobility makes the tax border less visible, but no less important. For a Swiss SME, the issue is not limited to the private tax of the boss. It can affect payroll, expense deductibility, VAT, the substance of a structure, or even the place where the company is considered to be effectively managed.

In a context where some cantons are communicating about more intensive controls, tax residence must be treated as a governance file. An official address or a certificate does not always suffice to convince an authority if the facts tell a different story. The right reflex is to align real life, tax documents, financial flows, and the organisation of the company before a question is raised by the tax authorities.

When the mobility of the boss becomes a Swiss tax issue

In Swiss tax law, the residence of an individual is primarily based on domicile or stay. According to Article 3 of the Federal Act on Direct Federal Tax, domicile is where a person resides with the intention of establishing themselves permanently. The stay can also establish tax liability: presence in Switzerland is relevant from 30 days with gainful activity or from 90 days without gainful activity, according to the research file based on the LIFD.

For a mobile executive, these criteria seem simple on paper, but their application often depends on a set of indicators. Where is the accommodation actually used? Where does the close family live? From where are important decisions made? Where are the banking relationships, doctors, vehicles, subscriptions, current expenses? The administration does not only read a tax return: it reconstructs an economic and personal reality.

The difficulty increases when the executive divides their time between Switzerland and another country. A tax treaty can resolve a residence conflict, but it does not replace concrete analysis. Two states can, each according to their internal law, consider that they have a right to tax. In this case, the coherence of evidence becomes decisive: presence calendar, tickets, leases, energy bills, card statements, employment contracts, minutes, and professional correspondence.

International comparison goes in the same direction. An analysis published by Fiscalonline regarding mobile executives in France emphasises proof by real life rather than by papers alone, and notes that a foreign residence certificate does not necessarily suffice without effective tax liability. For Swiss entrepreneurs with strong ties to France or another neighbouring market, this logic is a warning: expatriation is not secured by an isolated formality.

The registered office does not always indicate where the company is managed

Tax residence does not concern only the person of the executive. For a company, Switzerland notably considers the registered office or the place of effective management. The registered office appears in the constitutive documents; effective management refers to the place where strategic and operational decisions are actually made, according to the synthesis of PwC Tax Summaries cited in the file.

This distinction is essential for an SME whose owner lives abroad or travels constantly. If the board of directors, general management, negotiation of major contracts, and banking decisions are, in practice, managed from another country, the company may be exposed to discussions about its tax attachment. Conversely, a foreign company controlled from Switzerland can also attract attention. The risk is not only theoretical: it affects profit tax, potential withholding on certain flows, documentation of intra-group services, and justification of charges.

For a fiduciary, the question is read in very concrete details. Who signs the contracts? Where do management meetings take place? Do the minutes reflect reality? Are banking accesses concentrated in the hands of an executive based outside the canton or country? Do expense reports indicate a regular presence elsewhere than declared? Impeccable accounting can become fragile if it contradicts the effective organisation of the company.

Substance plays a central role here. A structure must have a comprehensible economic reason, adapted means, and real autonomy. In an SME, this does not mean replicating the organisation of a large group. However, it does imply avoiding letterbox companies, purely formal mandates, and flows without operational justification. The private assets of the executive are also concerned when holdings, real estate companies, or investment vehicles overlap with commercial activities.

Tax control goes back in time, not just in accounts

The subject takes on significance with the perception of more present tax control. In the canton of Jura, the Government acknowledged in June 2025 a strengthening of tax controls for several months, while indicating that the criteria applied were not new. Entrepreneurs have notably reported increased attention to professional expense deductions and hidden reserves, according to RFJ.

It would be imprudent to deduce a uniform practice throughout Switzerland. But the signal is clear for SMEs: the authorities have the means and time to examine a file. According to RSM Switzerland, controls can retroactively cover up to five years for indirect taxes such as VAT or withholding tax, and up to ten years for direct taxes like income tax or profit tax.

This temporal depth changes the way of managing proof. An executive should not wait for a tax questionnaire to reconstruct their agenda, find old receipts, or explain why an invoice was paid from a private account. The more years pass, the more memory fades and the more collaborators change. The financial risk is not limited to a tax supplement: it can include interest, accounting corrections, discussions on salaries, VAT adjustments, or tensions with investors and banks.

For professional expenses, the danger is particularly mundane. A subscription, a vehicle, trips between countries, business meals, or accommodation used for mixed purposes can be defensible if they are documented, proportionate, and consistent with the activity. The same charges become vulnerable if they appear to finance a private organisation or a presence in a country that the tax file does not recognise.

The residence file is built before departure

Securing the tax residence of a mobile executive is not about producing a legal note filed in a binder. It is continuous work between management, the fiduciary, the tax advisor, and, if necessary, specialists from the concerned country. The objective is to align life decisions, the organisation of the company, and tax declarations.

Before a departure, an installation in Switzerland, or a patrimonial reorganisation, the exact role of the executive must be clarified. Are they an employee, director, consultant, active shareholder, business introducer? Who replaces them operationally when they are not on site? Contracts, authorised signatures, internal regulations, and minutes must reflect this distribution. A mandate retained out of habit can create more risks than imagined if it contradicts the announced residence.

Payroll also deserves careful examination. When the activity is carried out in several countries, the days worked, services, bonuses, and reimbursements must be tracked methodically. The fiduciary must be able to reconcile payslips, analytical accounting, expense reports, and declarations. Social insurance and employer obligations must be verified according to the actual situation, as tax residence does not automatically settle all other attachments.

A robust file generally includes simple but up-to-date elements:

• a presence calendar consistent with travel, meetings, and expenses;
• proof of accommodation, charges, and daily life in the declared country of residence;
• minutes indicating where important decisions are prepared and made;
• documentation of flows between company, executive, shareholders, and patrimonial structures;
• written explanations for mixed expenses, recharges, and intra-group services.

This approach does not eliminate all risk, but it greatly improves the response capacity. In case of control, the company does not just claim that its executive lives or works in one place: it demonstrates it with consistent evidence.

Private assets and SMEs: the same story must be told

Among owner-executives, the boundary between private assets and the company is often porous. A company finances a trip, a holding holds shares, a shareholder current account absorbs expenses, a building is partially used for the activity. These situations are not abnormal in themselves, but they must be readable. The tax residence of the executive influences how income, distributions, benefits in kind, and patrimonial elements will be understood by the concerned administrations.

Management must therefore be global. A patrimonial reorganisation can be tax-coherent in one country and create a question in another. An international teleworking decision may seem practical for management and complicate the reading of the place of effective management. A private address may be administratively correct, while being insufficient if the facts show that economic life takes place elsewhere.

For a Swiss SME, the message is less anxiety-inducing than operational: mobility is prepared. Executives who anticipate, document, and align their governance reduce grey areas. Those who wait for control often discover too late that taxation follows the concrete traces left by travel, signatures, and payments. In an environment of more active surveillance, tax residence becomes an asset to protect just like cash flow, margin, or the company's reputation.