From 1 January 2027, spouses in Switzerland will again be able to use an official double surname. The Federal Council brought the corresponding amendment to the Civil Code into force at its meeting on 21 October 2026. The name may be written with or without a hyphen. Double surnames will, however, remain unavailable to children. [1]
More choice at marriage
Since the 2013 reform, couples marrying have had to keep their respective surnames or choose one common family name. The only additional option was a non-official alliance name, normally joined with a hyphen. The new rule is intended to let spouses retain their naming identity while also making the family connection visible. [1]
Details will be set out in the Civil Status Ordinance. Those amendments are still being prepared and are expected to be adopted by the Federal Council in November 2026. The new statutory rule nevertheless begins on 1 January while the technical and administrative provisions are finalised. [1]
Already married people can also change
From the new year, people who are already married may declare to the civil registry office that they wish to use an official double surname. The change is neither automatic nor compulsory. Anyone wishing to make it must submit a declaration. [1]
Transitional rule for identity documents
In future, an alliance name that differs from the official name will no longer be entered in a passport or identity card. The Federal Council has nevertheless provided a transitional period during which the present entry remains possible while technical systems are adapted. Its duration has not yet been set, and the end will be announced in advance. [1]
The start date is therefore fixed, while some implementation details will follow. Anyone planning to choose a double surname in 2027 should consult the final instructions from the civil-status authorities.
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