Why the French corporate tax reduction interests Swiss SMEs

France has decided to slow down a planned reduction in corporation tax for its largest companies. According to BFM Business, companies with a turnover of more than 250 million euros were supposed to see their rate drop from 33% to 28%; it would ultimately drop to 31%. For Swiss executives, the information may seem distant. It is not entirely so.

A change in tax trajectory in a neighbouring country reminds us of a reality that SMEs know well: an announced rate is not always a guaranteed rate. When a company prepares an investment, a set-up, an acquisition or a budget over several financial years, taxation becomes a cash flow parameter, not just a line on a tax return. And when the state adjusts the timetable, it is the margins, prices, dividends and sometimes recruitment that need to be recalculated.

A French setback targeting large groups, but relevant to SMEs

The French case presented by BFM Business concerns large companies. The mentioned threshold is clear: more than 250 million euros in turnover. The corporation tax rate was supposed to drop to 28%, but the reduction would be limited, with a drop from 33% to 31%. The measure is described in a context of the government seeking savings to finance stimulus measures and other tax cuts.

For a Swiss SME without a presence in France, the direct tax effect is theoretically limited. But many companies in the Romandy, Basel or Ticino regions work with clients, distributors, suppliers or subsidiaries in the European Union. Some invoice services to a French company within the group. Others hold a stake, employ cross-border workers, or sell to a French player whose purchasing decisions depend on its own post-tax profitability.

In this type of relationship, foreign taxation can be indirectly transmitted. If a French partner retains a higher tax burden than expected, they may delay an investment, review their purchase prices, renegotiate a contract or limit a distribution. For the Swiss company, this rarely translates into an explicit mention of "corporation tax" in the accounts. It appears more in the order book, payment terms, volume of mandates or pressure on prices.

The lesson is simple: an SME should not build its budget on a tax cut that is still political as if it were already secured. When a project heavily depends on an expected tax relief, it is better to test a less favourable scenario. This caution applies in Switzerland as well as abroad.

In Switzerland, corporation tax operates on several levels

The Swiss system differs from the French model. Corporation tax on profits is levied at three levels: federal, cantonal and communal. According to the research dossier, the federal rate is 8.5% on net profit before tax. To this are added cantonal and communal charges, which vary depending on the place of taxation.

This structure explains why two Swiss companies making comparable profits can bear very different charges depending on their canton and commune. The dossier cites an effective total tax charge ranging from 11.9% in the canton of Zug to 24.2% in certain Geneva or Vaud communes. For a fiduciary, this is not a statistical curiosity: it is an element of financial planning, location choice and monitoring of tax instalments.

However, a company should not only compare rates. The place of establishment also influences rents, salaries, access to labour, permits, working languages, proximity to clients and administrative burden. A lower rate may be less attractive if operations become more costly or if the structure does not match economic reality. Tax administrations also examine the substance of activities: an address does not replace a real organisation.

In practice, an SME should integrate tax into its budget as a manageable cash outflow, but not entirely controllable. Instalments, tax provisions and profit allocation must be reviewed when profitability changes. An exceptional year, positive or negative, can alter liquidity needs. Accounting must therefore produce a reliable estimate early enough to avoid a surprise at the time of taxation or when paying the balance.

Since the RFFA, the tax promise depends more on the company's profile

Switzerland has already experienced its own major adaptation of corporate taxation. The Tax Reform and AHV Financing, which came into force on 1 January 2020, abolished privileged tax statuses such as holding, domicile and mixed companies. It replaced them with instruments compatible with international standards, notably the patent box and deductions related to research and development.

For a large company active in innovation, these tools can play an important role. For a traditional SME, their interest depends heavily on the actual activity, available documentation and the ability to isolate the relevant income or expenses. An artisanal business, a shop or a local service provider is not in the same situation as a technology company developing intangible assets.

This is where the work of the fiduciary becomes decisive. It is not just about filling out a tax return, but identifying relevant mechanisms and ensuring that conditions are met. A tax deduction is only valuable if it is defensible, documented and consistent with the accounts. Conversely, ignoring an applicable mechanism can lead to paying too much tax and reducing the company's investment capacity.

The abolition of the old statuses has also changed the way we talk about tax competition. Reliefs no longer rely solely on a legal category, but more on the nature of activities, location, intellectual property, employment and the ability to demonstrate economic substance. For executives, this implies more detailed planning: who does what, where, with what risks, what contracts and what accounting documentation?

The international minimum rate changes the calculation for groups

On an international scale, corporate taxation is also under pressure. The research dossier indicates that Switzerland implemented in 2024 the OECD's Pillar 2, with a minimum effective rate of 15% for multinational groups with consolidated turnover exceeding 750 million euros.

Most Swiss SMEs do not exceed this threshold. However, the indirect effect may exist when they belong to a larger group, work for a multinational or consider a sale to an international player. In these situations, the buyer or parent company does not only look at the local result. They examine the effective rate, group structure, deferred taxes, possible withholdings, transfer pricing and the robustness of the documentation.

For an independent Swiss company, this development is a reminder that taxation is no longer just cantonal or national. Groups want to avoid the risks of reassessment and structures that work on paper but not in practice. An SME aiming for international growth therefore has an interest in getting organised early: intra-group contracts, re-invoicing, justification of margins, dividend policy, ownership of brands or software, and consistency between accounting and operational reality.

Financial communication must also be monitored. A tax rate presented too optimistically in a budget can give a distorted image of profitability. For a board of directors, a bank or an investor, the question is not only which legal rate applies, but what tax the company will probably pay, when, and with what degree of uncertainty.

Budgets, prices and dividends: where tax impacts management

In an SME, corporation tax comes after the result, but its effects start well before the tax return. It influences the minimum acceptable price, the choice between distribution and reserve, the self-financing capacity, banking discussions and sometimes the manager's remuneration. A rate cut can free up resources. A postponed or reduced cut can, on the contrary, leave less margin than expected.

The useful reflex is to think in scenarios. A budget should not present a single post-tax result, but several hypotheses: rate stability, partial reduction, absence of relief, profit higher or lower than expected. This approach is not theoretical. It allows deciding whether the company can commit to a machine, a premises, an additional position or a commercial campaign without relying on uncertain tax savings.

The same caution applies to dividends. Distributing a profit too quickly assuming a favourable tax burden can weaken cash flow when instalments or the tax balance arrive. Conversely, systematically retaining too much liquidity for fear of tax can slow down development. The balance depends on the canton, legal form, personal situation of shareholders and operational needs. It must therefore be analysed on a case-by-case basis.

The French reversal does not announce a comparable decision in Switzerland. The research dossier notes that there is currently no major public debate in Switzerland on cancelling or modifying recent corporation tax cuts. But it reminds us of a management rule: taxation is a changing environment. Companies that follow it once a year, when signing the return, react too late.

For Swiss executives, the right response is neither worry nor waiting. It is regular, documented and cautious planning. Rates matter, but the quality of forecasts, the coherence of the structure and the dialogue with the fiduciary matter just as much. In a context where states adjust their tax promises according to their budgetary constraints, the SME that keeps several scenarios open better protects its margins and decision-making capacity.