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Taxes in Onex (GE) 2026

Rank № 43 of 45 communes in canton Geneva.

50.5%

How Onex compares

Canton GE average41%
Cheapest in GE25%
Most expensive in GE51%
Switzerland median107%
Canton range
25–51
45 communes in GE
Cantonal average
41.2
commune-level multiplier
National median
107
across 2'122 communes
Example calculation: annual tax bill in Onex by income
StatusGross incomeAnnual tax
SingleCHF 80'000CHF 12'181
SingleCHF 120'000CHF 23'873
SingleCHF 180'000CHF 44'197
MarriedCHF 150'000CHF 24'382
Married, 2 childrenCHF 200'000CHF 32'148
Assumptions: standard deductions, no religious affiliation. Federal, cantonal and communal tax, excluding church tax. Source: ESTV.

Onex is at the higher end of the tax burden in canton Geneva. Moving to Plan-les-Ouates would save roughly CHF 1'771 per year at an income of CHF 120,000. At an income of CHF 120,000, the total tax bill in Onex is roughly CHF 23'873.

What is the tax rate in Onex in 2026?
The communal tax rate in Onex is 50.5% in 2026, and the cantonal rate is 41.2%.
How much tax do you pay in Onex on a CHF 100,000 income?
On a gross income of CHF 100,000 (single, no religious affiliation), the total tax bill in Onex is roughly CHF 17'855 per year.
Is Onex a low-tax commune?
Onex ranks 43 of 45 in canton Geneva and is among the higher-tax communes there.
Which neighboring commune has lower taxes?
Plan-les-Ouates is only 2.8 km away, and the tax bill there is roughly CHF 1'771 lower at an income of CHF 120,000.
Sources & methodology

Source: ESTV cantonal tax sheets 2026. Illustrative calculation based on standard assumptions — use the calculator for an exact figure.