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ARTICLE · 18 NOVEMBER 2025

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Payroll Set-up: Challenges With Short-term Project Assignments

Short-term project assignments have become an integral part of modern working structures in an increasingly dynamic and ad hoc business environment.

SwitzerlandEmployment and HR

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Short-term project assignments have become an integral part of modern working structures in an increasingly dynamic and ad hoc business environment. Companies use them to respond to fluctuating order situations, specialized requirements, or the need for additional expertise within tight time frames.

While this flexibility offers numerous opportunities—such as rapid scaling of teams or access to international specialists—it also poses significant organizational, legal, and administrative challenges.

One challenge here is payroll processing. Proper implementation requires an assessment of the project assignment in terms of tax and social security law. This is complicated by the fact that project assignments are not usually preceded by a long planning and review period and that they generally last from a few days to a few months, and in some cases even several years.

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