Cross-border commuters: how Switzerland taxes you

Who counts as a cross-border commuter?

Cross-border commuters live abroad, work in Switzerland (usually on a G permit) and as a rule return to their residence daily, at least weekly. For taxes, what matters is which agreement Switzerland has with which country — the four neighbours have four different solutions.

Germany: 4.5% at source

Under the double-taxation treaty, Switzerland withholds at most 4.5% of the gross salary. The salary is taxed in Germany; the Swiss deduction is credited there. The prerequisite is the residence certificate from the German tax office — without it, the employer deducts the full ordinary tariff.

The 60-day rule matters: anyone who for professional reasons does not return to their residence on more than 60 working days per year loses commuter status — full Swiss withholding tax by tariff then applies, and Germany exempts the salary (subject to progression).

France: two worlds

For France, two regimes coexist:

• Agreement cantons (Bern, Basel-Landschaft, Basel-Stadt, Jura, Neuchâtel, Solothurn, Vaud, Valais): genuine commuters pay tax on their salary in France; Switzerland levies no withholding tax and receives a compensation payment instead. The annually renewed residence certificate is required.
• Geneva (and the remaining cantons): withholding tax is deducted normally at source — the withholding tax calculator shows how much. Geneva in turn pays compensation to the neighbouring French departments.

Since 2023, a supplementary agreement additionally allows up to 40% teleworking in the country of residence without changing the taxation.

Italy: old and new commuters

The new agreement has been in force since 17 July 2023 and distinguishes two groups:

• “Old” commuters (already working in the border cantons of Graubünden, Ticino or Valais before): the previous rule remains — taxation in Switzerland only.
• “New” commuters (starting from 17 July 2023): Switzerland levies 80% of the ordinary withholding tax, and Italy additionally taxes the income while crediting the Swiss tax. The overall burden is usually higher than before.

For teleworking, a 25% tolerance has applied since 2024 without loss of status.

Austria: ordinary tariff, relief via the treaty

With Austria there is no special commuter regime: Switzerland deducts withholding tax under the ordinary tariff; Austria taxes worldwide income and credits the Swiss tax.

What this means in practice

1. Check the country of residence: your tax picture follows first from the agreement, then from the tariff.
2. Keep certificates current (DE/FR): without a residence certificate you pay the full tariff.
3. Compare cantons: where full withholding applies (GE for France, all cantons beyond 60 non-return days, etc.), the withholding tax comparison is worth a look — the same job in the neighbouring canton can make a noticeable net difference.
4. Clarify special cases: weekly residents, teleworking beyond the tolerances and senior management roles quickly fall outside the commuter rules — in doubt, the cantonal tax administration or a specialist helps.

The commuter tariff codes (e.g. the German 4.5% codes or the Italian frontier tariffs) are special tariffs not covered by our calculator — it shows the ordinary A/B/C/H tariffs as they apply under full Swiss taxation. More on withholding tax in general in the expat guide.