Switzerland Moves to End the ‘Marriage Penalty’ in Its Tax System
Switzerland may be heading toward a significant reform of its tax system. In a historic referendum, Swiss voters have supported a proposal to abolish the so-called “marriage penalty” — a situation in which married couples can face a higher tax burden than unmarried partners with comparable incomes.
How does the current system work?
Under the current Swiss tax framework, married couples are taxed jointly. Their incomes are combined and they must file a single tax return.
Because Switzerland applies progressive tax rates, combining both incomes can push the household into a higher tax bracket than if each partner were taxed individually. As a result, dual-income married couples may end up paying more tax than unmarried couples with the same total income.
This phenomenon is widely referred to as the “marriage penalty.”
The proposed reform
The reform aims to introduce a system in which spouses are taxed individually. Under such a model, married partners would be treated similarly to unmarried couples for tax purposes.
Supporters argue that this change would lead to:
Greater tax neutrality between married and unmarried couples
Stronger labour incentives, particularly for the second earner
More transparency in the tax system
Impact for international employees
The reform could also be relevant for international employees and cross-border workers. Switzerland remains an important labour market for foreign professionals, including many workers from neighbouring European countries.
A shift toward individual taxation could influence:
the tax burden for dual-income households
mobility decisions of internationally mobile employees
comparisons with other European tax systems
Part of a broader European debate
The discussion about joint versus individual taxation is not unique to Switzerland. Several countries have reformed their systems in recent decades to enhance tax neutrality within households and to encourage labour market participation, particularly among second earners.
Switzerland’s move can therefore be seen as part of a broader European trend toward individual taxation.
