24 Sep 2026

Trusso Continues to Grow

Trusso is the Swiss trust and auditing group for ambitious SMEs, strong partner firms, and entrepreneurial-minded talent.

Expansionin Northwestern Switzerland

Duttweiler Treuhand AG, headquartered in Liestal, is joining the Trusso Group as a new partner firm. This long-established firm from the Basel-Landschaft region brings half a century of experience and a team of over 25 specialists to the table and is one of the region’s leading trust and auditing firms. Together with Tretor AG, which is also based in Liestal, Duttweiler strengthens Trusso’s presence in northwestern Switzerland.

About Duttweiler

Duttweiler is characterized by independent thinking and reliability in action, a strong partner that clients, government agencies, and banks can always count on. Its range of services extends from bookkeeping, taxes, and auditing to human resources and payroll administration, as well as corporate and succession planning. Its client base includes traditional SMEs, clubs, and associations, as well as private individuals.

Duttweiler is led by three partners with complementary areas of expertise. René Zemp, a certified fiduciary expert and RAB-certified auditor, is responsible for fiduciary services and auditing. Nicole Ziegler, a certified fiduciary expert with a MAS degree from a university of applied sciences in fiduciary services and management consulting, as well as a certified auditor (RAB), combines fiduciary services with management consulting. Michael Herrmann, a certified financial consultant (FH) and certified banking specialist, contributes expertise in finance and retirement planning.

01 Oct 2026

New Transparency Registry

On October 1, 2026, the Federal Act on the Transparency of Legal Entities and the Identification of Beneficial Owners (TJPG) will take effect.

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24 Sep 2026

Trusso Continues to Grow

Duttweiler Treuhand AG, headquartered in Liestal, is joining the Trusso Group as a new partner firm.

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07 Sep 2026

We are reorganising. These are the people behind Trusso.

Trusso is the Swiss fiduciary group for ambitious SMEs, for strong partners and for entrepreneurially minded talent.

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02 Jun 2026

Trusso Launches Business Advisory Services Group

Business advisory and accountancy services for SME – local, connected, digital.

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31 May 2026

Context is the lever

Every week, someone shows up at an SME with an AI tool, promising efficiency. Most of the time, little happens afterward. Not because the AI is bad, but because it doesn't understand the business. Why context – industry, regulations, customer – is the real lever, and what that specifically means for Swiss SMEs.

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01 May 2026

Tax Regulation of the Child Deduction

Parents can claim a child deduction in their tax return – both for direct federal tax and at the cantonal level. Especially in cases of separation, shared custody, or blended families, questions regularly arise regarding the correct allocation. The decisive factor is always who actually bears the maintenance costs.

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01 May 2026

Strengthening the AHV Capital Base: Key Aspects of a Reform

Entrepreneurs who own a stake in their own company can combine salary and dividends in a tax-optimized manner. What is currently legal is increasingly coming under the scrutiny of lawmakers: As part of the next AHV reform, it is being examined whether excessive dividends will in the future be directly subject to AHV contribution obligations – regardless of the salary paid.

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01 May 2026

Abolition of the Imputed Rental Value: Practical Implications for Taxpayers

Following the popular vote on September 28, 2025, it is clear: the imputed rental value will be abolished – starting no earlier than 2028. This system change will eliminate not only the fictitious income but also established deduction options for maintenance costs, mortgage interest, and energy-saving measures. Those who act now can still benefit from the existing regulations.

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01 May 2026

Protection against unwarranted debt collection

In der Schweiz kann eine Betreibung ohne jeglichen Forderungsnachweis eingeleitet werden – mit sofort sichtbaren Folgen im Betreibungsregister. Wer ungerechtfertigt betrieben wird, kann seit 2019 einen Antrag auf Nichtbekanntgabe stellen. Per 1. Januar 2026 wurde diese Schutzmöglichkeit ausgebaut: Die Gesuchsfrist beträgt neu fünf Jahre statt bisher einem.

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12 Mar 2026

Yes to Individual Taxation

On March 8, 2026, Swiss voters approved individual taxation. While this sounds like a fundamental change to the tax system, it will have little short-term impact and is far from being politically settled. We explain what the reform means, who it affects, and why nothing will change for now.

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