Salary certificate(s) (if you are an employee)
Accounts (if you are self-employed)
Pension statements (if you are retired, etc.)
Bank or post office account statements
Statements relating to investments
Premiums and contributions to insurance policies (health insurance; disability, accident and life insurance);
Pension scheme contributions (2nd and 3rd pillar);
Costs of career-related training and further education (incl. retraining);
Contributions to charitable organisations;
Medical and care costs not covered by insurance;
Dual-income deduction if both spouses are gainfully employed;
External childcare costs;
For homeowners: documents relating to property tax, mortgage interest, bills for maintenance and repairs, running and administrative costs, etc.
Making deductions
Expenses:
These comprise the costs you incur in doing your job. For employees, this includes travel to your place of work or meals away from home. For the self-employed, this could be office rent or depreciation on vehicles or tools.General deductions:
To a limited extent, you can deduct the interest you pay on debts, the health insurance and medical costs you pay, and life insurance premiums[MKRB1] and 3rd pillar contributions, among other things. You can also deduct donations you have made to charitable institutions or the cost of continuing education and training courses.Social deductions:
Social deductions provide tax relief for families (deductions for children and for care costs), older persons and persons with disabilities (deductions for those in receipt of an OASI or disability pension), among others.
Making deductions
Requesting an extension of the deadline
Getting help
steuern-easy.ch (website available in German, French and Italian) - practise filling out your tax return with the help of simplified examples, information for young taxpayers.
Cantonal tax administrations (website available in German, French and Italian) - Information, online tax returns, contacts
Federal Tax Administration - Tax information dossiers (web page available in German and French)
Swiss Federal Tax Administration - Tax folders (web page available in German and French)