What is personal data?
Personal data is the basic information that the tax authorities needs for your tax return. This includes, for example, your name, address, marital status, social security number, and date of birth.
This information is crucial because it determines which canton and municipality are responsible for you and which rates and deductions apply.
The circumstances as of December 31 of the tax year are always decisive.
Example
You enter all the personal data required for your tax return.
Documents
As a rule, you do not need any additional supporting documents. Your information must be correct and complete.
How to add it in iqtax
Check your information carefully and add any missing details such as your address, marital status, and tax municipality as of December 31.
Save the information so that you can continue with your tax return.
🛟 Need more help?
If you need support at any point, you have several options:
Use the support chat widget in the bottom-right corner of the screen to get quick, direct assistance.
Contact our support team for personal help.
Visit our Help Center for step-by-step guides and common questions.