How long can I apply for a childcare allowance?

The tax office will check your submitted income tax return ex officio. You must submit this to the tax office by July 31 of the following year. If you are not obliged to submit an income tax return, you can submit a tax return voluntarily (application assessment). You have four years to do this. You can submit the voluntary tax return for 2024 until 31.12.2028.