Geneva imputed rental value rises 1.8% in 2026 ahead of abolition in 2029

Geneva, 8 October 2026. Geneva’s imputed rental value remains taxable in 2026: the cantonal government has set the index at 127.5 points, an increase of 1.8% compared with 2025. Announced in the official statement of 7 October 2026, in French, the adjustment falls under the existing system, which remains in force until imputed rental value taxation is abolished on 1 January 2029.

For owner-occupiers, the immediate issue is taxable housing income. For property investors, it is important to distinguish this annual adjustment from the broader tax reform that will affect medium-term calculations.

Geneva imputed rental value in 2026: what does 127.5 mean?

Imputed rental value is the notional income attributed to an owner who occupies their own home. It is not rent actually received, but an amount included in the tax calculation.

According to Geneva’s government, the cantonal regulation requires an adjustment for each tax year. This reflects rental trends, using the cantonal statistical office’s data on rents for existing, non-new housing.

The figure of 127.5 is an index, not a tax rate. The 1.8% increase is neither an automatic rise in the property’s market value nor permission to raise a tenant’s rent.

What changes for owner-occupiers?

All else being equal, the adjustment can increase the taxable income attributed to a home and consequently the owner’s tax liability. The actual effect depends on the assessed imputed rental value, applicable deductions and the household’s tax position.

It would therefore be wrong to say that the total tax bill automatically rises by 1.8%. That percentage describes the change in the imputed rental value index, not the change in overall tax.

When preparing the 2026 return, owners should check the property’s tax information and retain supporting documents for expenses deductible under the current rules.

Why property investors should pay attention

Owner-occupation and letting must be considered separately:

• Owner-occupied housing: imputed rental value directly affects the assessment of after-tax ownership costs.
• Property let to third parties: the analysis focuses on actual rental income; this index adjustment does not automatically increase rents.
• Ownership structure: choosing how to hold a property requires an overall comparison of costs, financing and applicable tax rules, rather than a decision based solely on the 1.8% increase.

Geneva’s announcement is not a reform of income-producing properties. However, it would be too broad to conclude that the federal reform in 2029 cannot affect their owners: the new debt-interest deduction rules also need to be considered by affected investors.

Abolition in 2029: a separate structural change

At its meeting on 1 April 2026, the Federal Council set the implementation date at 1 January 2029, official statement in French. Abolition is therefore not already effective in 2026.

Geneva’s statement expressly confirms that annual adjustments will continue for 2026, 2027 and 2028. The 1.8% figure announced for 2026 does not determine the adjustments for the following two years.

The federal reform combines the end of imputed rental value taxation with several changes:

• Maintenance-cost deductions will end for owner-occupied housing but remain for rented or leased housing.
• Debt-interest deductions will be limited according to the ratio of rented or leased real estate to total assets.
• People purchasing a first home in Switzerland will benefit from a specific debt-interest deduction limited in both amount and duration.

Owners should therefore compare tax scenarios before and after 2029, rather than assume that abolition will generate the same saving for every household. Deduction rules, debt levels and the use of the property remain decisive.

Frequently asked questions

Is imputed rental value abolished in Geneva in 2026?

No. The existing system remains applicable through the end of 2028. Abolition takes effect on 1 January 2029.

Does the 1.8% increase apply to tenants’ rents?

No. It is an adjustment to a tax value associated with occupying one’s own home, not a general rent increase.

Should rental investment projections be reviewed?

This adjustment does not automatically change rental income. However, the 2029 reform’s impact on deductions, particularly debt interest, should be assessed in light of the investor’s individual circumstances.

Further reading

Our property buyer’s guide and mortgage calculator cover other aspects of a purchase; neither replaces an individual tax calculation.

Official sources

• Geneva cantonal government, imputed rental value adjustment, 7 October 2026; French-language source.
• Swiss Federal Council, implementation of imputed rental value abolition, 1 April 2026; French-language source.

Analysis based on official decisions available on 8 October 2026. Individual tax consequences must be assessed in light of the taxpayer’s circumstances.