At Stake in this Referendum: 

Voters are voting to approve two pieces of legislation: 

 - The Federal Act on Electronic Identification Services (e-ID Act) 

 - Federal Decree on Cantonal Property Taxes on Second Homes 

Government Structure: 

• Chief of State: President of the Swiss Confederation Karin KELLER-SUTTER (since 1 January 2025) 

• Head of Government: President of the Swiss Confederation Karin KELLER-SUTTER (since 1 January 2025) 

• Assembly: Bicameral Federal Assembly comprised of the 200-seat National Council and the 46-seat Council of States.  

Electoral System:  

• The President and the Vice President are indirectly elected via the Federal Assembly to serve 1-year terms. 

• Members of the Federal Assembly is directly elected via proportional representation, to serve 4-year terms. 

Last Election: 

The last referendum was held on February 9, 2025 to decide on a environment-related question. 30.3% of voters voted “yes” and 69.8% voted “no”. Voter turnout was 38%.  

Information for Voters: 

Popular Vote on 28 September 2025 (in English) 

Population and Registered Voters: 

• Population: 9,034,102 (2024 estimate) 

• Registered Voters: 5,620,065 (2025 estimate) 

Gender Data: 

• Female Population: 4,546,181 (2024 estimate)  

• CEDAW Status: Signed 23 Jan 1987, Ratified 27 Mar 1997 

• Gender Quota: No legislated quotas. Some political parties have adopted voluntary quotas.  

• Female Candidates in this election: n/a 

• Number of Female Legislators (pre-election): 78 out of 200 in the National Council and 15 out of 46 in the Council of States. 

• Human Development Index (HDI) Position: 0.970, Very High (2023 estimate) 

• Social Institutions and Gender Index (SIGI) Categorization: 9.9 (2025 estimate)  

Disability Data: 

• CRPD Status: Acceded 15 April 2014 

• Projected population with a disability: 1,445,456 (2024 estimate) 

IFES Resources: 

• ElectionJudgments: Yes, 2 judgments