The 2019 tax pack significantly extends the reporting duty in relation to the income paid by Czech taxpayers abroad. This measure has remained somewhat in the shadow of the implementation of European legislation (the ATAD Directive), but it deserves attention, as it concerns a wide range of subjects. According to the proposed draft Section 38da of the Income Tax Act, the notification duty (hitherto applied only in relation to income subject to withholding tax) will now also apply to exempt income or income that is not taxable in the Czech Republic under the international treaty. Typically, these include interest or dividend income.