Your tax office is responsible for the calculation of your tax assessment. Only this authority can officially determine whether you receive a tax refund or if you have to make an additional payment.
Taxfix calculates your tax assessment with the greatest possible care on the basis of the data you entered. In some cases it is possible that the tax office may not accept some of your claims or entries. The Taxfix result may differ from your tax assessment.
However, you have the opportunity to file an objection against the tax assessment and, if necessary, submit supporting documents.