One of the most common and most expensive misunderstandings in Swiss SME finance is the assumption that these three roles are interchangeable, or that having one means you do not need the others. Many businesses discover the gap the hard way: the Treuhänder files accurate statutory accounts but nobody can explain why profit is down. Or the controller produces excellent variance reports but the company has no banking strategy and the credit line renewal is in six months. Or a full-time CFO is hired at significant cost for a business that needed ten hours a month of focused financial oversight.

Getting this question right saves money, prevents gaps, and ensures the finance function is actually serving the business rather than just the tax authorities.

What a Treuhänder Does

The Treuhänder (fiduciary or trust company) is a Swiss-specific institution that combines accounting, tax, and legal advisory in a single firm. Most Swiss SMEs work with a Treuhänder as their primary external finance partner, and for good reason: the Treuhänder handles the statutory accounting obligations that every Swiss company has regardless of size.

The core work of a Treuhänder covers preparation or review of the annual statutory accounts (Jahresrechnung) in compliance with the Obligationenrecht, preparation and filing of tax returns (direct federal tax, cantonal and communal tax, MWST), payroll administration and social contribution management (AHV, ALV, BVG settlements), and in many cases the limited or ordinary audit where required.

The Treuhänder is the answer to the question: have we met our legal obligations? They are experts in Swiss accounting standards, Swiss tax law, and Swiss regulatory requirements. For a company below about 10 employees, a good Treuhänder may be the only finance function the business needs.

What a Treuhänder typically does not provide: forward-looking financial analysis, budget preparation and management, variance analysis and commentary, cash flow forecasting, KPI reporting, banking relationship management, pricing analysis, or cost structure optimisation. These are not oversights or limitations. They are outside the scope of what the fiduciary profession is designed to deliver. A Treuhänder who is also doing management accounting is either exceptional or is stretching beyond their core competence.

What a Controller Does

A controller, in the Swiss and European sense, is the person responsible for management accounting: the internal financial analysis that helps management understand the business and make better decisions.

The controller’s work includes month-end close from the management accounting perspective (accruals, cost centre allocations, variance identification), monthly management reporting (P&L versus budget, KPI dashboard, variance commentary), budget preparation and coordination, re-forecasting, cash flow monitoring, cost analysis and profitability analysis, and providing the analytical support that management needs for specific decisions.

The controller is the answer to the question: how is the business performing, why, and what should we do about it? They are primarily forward-looking and decision-support oriented, working with management on a regular basis rather than producing a once-a-year statutory output.

A controller is not responsible for statutory accounting, tax filings, payroll processing, or audit. Those remain with the Treuhänder or the accounting function. In well-organised companies, the controller works closely with the Treuhänder on the year-end accounts and audit preparation, but the statutory obligations are not the controller’s primary domain.

For a company between approximately 15 and 100 employees, a part-time controller (either a fractional engagement or a part-time employee) is often the right model. The volume of management accounting work at that size does not justify a full-time internal controller, but the business has grown to a point where operating without management accounts is genuinely costly.

What a CFO Does

The CFO (Chief Financial Officer) operates at a different level from the controller. The CFO’s primary responsibilities are strategic rather than analytical: managing the banking and investor relationships, leading the annual budget process and strategic planning, overseeing the entire finance function, managing financial risk (FX, interest rate, credit), advising the board on capital structure and financing strategy, and representing the finance perspective in strategic decisions.

The CFO is the answer to the question: what is the financial strategy of the business and how do we execute it? They are concerned with the financial architecture of the business, not primarily with the monthly reporting cycle.

A CFO also oversees the controller and the accounting function, sets the standards for financial reporting quality, and ensures that the board and management are receiving the financial information they need to govern and run the business effectively.

For a company below about CHF 10M revenue, a full-time CFO is almost certainly not the right investment. The strategic finance work at that size does not require a full-time dedicated resource, and the cost is difficult to justify. Above CHF 30M to CHF 50M, a full-time CFO is typically warranted. In the range between, a fractional CFO arrangement provides the strategic finance capability without the full-time cost.

The Combination That Most Swiss SMEs Need

For a typical Swiss SME in the CHF 3M to CHF 20M revenue range, the right combination is usually: a Treuhänder for statutory accounting and tax, a part-time controller or fractional CFO for management accounting and strategic finance oversight, and the CEO or a senior manager fulfilling the day-to-day finance coordination role.

This combination covers all three domains without the cost of a full internal finance team. The Treuhänder handles compliance. The controller or fractional CFO handles analysis, reporting, and strategic input. The overlap between the two is managed through a clear division of responsibilities and regular communication, particularly around year-end and audit preparation.

The signals that a business has outgrown its current finance configuration are worth knowing: management is making significant decisions (investment, hiring, pricing) without reliable financial analysis to support them; the bank is asking questions that nobody in the business can answer confidently; the budget process does not exist or produces numbers that are out of date by March; or cash surprises are happening that nobody anticipated.

Any of these signals suggests the management accounting function needs to be strengthened, regardless of how good the Treuhänder’s statutory work is.

A Direct Answer to the Positioning Question

For the businesses that read this article considering whether they need external finance support: the Treuhänder you have is almost certainly doing their job well. The question is not whether to replace them. It is whether you need someone alongside them who is focused on the forward-looking, decision-support work that statutory accounting does not provide.

If your management team is flying without reliable monthly numbers, a budget that is actively used, and a clear understanding of the cash position at all times, the answer is yes.

Need support with Swiss-specific finance and compliance questions? Book a free 30-minute call to discuss your situation.

Alessandro Ratzenberger is a fractional CFO and business controller based in Zurich, with 15 years of operational finance experience at Dufry Group and Bomi (UPS Group).