After KAÜ identification (KAÜ is for Central Identification Agent), the Taxpayer Portal can be launched, where the current NTCA "Announcements" and "Information" appear on the home page.
The tax account can be viewed electronically, after logging in to the Client Gate+ or DÁP (i.e. Digital Citizen) on the electronic administration interface of the NTCA, the NTCA Taxpayer Portal, or in the Tax Account Query or Taxpayer Portal menu item of the NTCA Mobile application. Upon logging in, the "My Home Page" page displays the balance of your tax account, as well as the total payments and transfers yet to be recorded in the accounts, on the "Tax Account" tile. By clicking on the "More Information" button, you can view the detailed data.
In addition to tax account data, the Taxpayer Portal also allows you to check the forecast amount of late payment surcharges based on late payments for the current period, as well as the breakdown of late payment surcharges already charged for previous periods ("Surcharge breakdown"). If you have not been affected by late payment surcharges in the past, this will be indicated in a text message.