These days, expatriates can no longer claim special allowances when they come to work for short periods in Switzerland. However in common with Swiss citizens working away from their normal home, they can claim for the cost of weekly economy class travel (including air travel) and a small flat.
Additionally any business expenses, including travel and subsistence when working away from the normal workplace can be reimbursed directly with no payroll costs or tax payment, but they should be declared on the annual salary statement.
Depending on your canton of residence, there may be numerous other deductions for married couples, childcare, health costs, commuting charges, etc that can be claimed in a tax return. These need to be checked with the respective cantonal tax office or a professional tax advisor. Although we cannot act on your behalf in personal tax matters, we can provide you a list of cantonal tax office addresses, and a list of reputable tax advisors based on canton and your preferred language.
For those of you paying source tax and not filling a tax return, the source tax rates do reflect the major deductions for marriage and dependent children. We need to apply for a ruling on this status on your behalf when you join us. To see how tax varies in your canton with status you can try our online sourcetax calculator.