If you or your representative has an** accessible data box - Datová schránka, you must file your tax return electronically** - a data message in the xml format. You can generate the xml file in this step of application. Submitting tax return electronically does not mean sending it by email to your Tax Office.
After uploading attachments and completing the application, you will be able to download the tax return in both formats: PDF and xml. You will only submit the xml file via the data box.
How to upload attachments in this application:
* upload attachments in "PDF" or "JPEG" format
* the total size of all attachments must not be greater than 4 MB
* if you have one attachment scanned as multiple pages, use the "Add" button and upload the next page to the new field
* if you make a mistake in uploading an attachment, select "Delete" or "x" and add the field for the attachment upload again using the "Add"
* the application can only merge attachments in "PDF" format, e.g. if you upload them only in PDF, it will merge them into one file. If you use the "JPEG" format, it does not merge, but the second and next pages are assigned to the "General Attachment". Both options are acceptable for ADIS purposes.