Let us know your deductions already now in MyTax
The following deductions and credits for tax year 2018 can be entered in MyTax already now:
The date when your 2017 tax refund is transferred to your bank account is 11 December 2018. Precise information on your refunds is displayed in MyTax.
The due date for the first instalment of 2017 back taxes is 3 December 2018; for the second instalment, it is 1 February 2019. The exact amount and instructions for payment are displayed in MyTax. You can also pay your back tax in MyTax.