What is checked?
The service checks whether the file can be processed technically and reports detected format and validation findings. A visual view helps you read the contents. It does not replace tax or legal review.
How it works
Select an XML or Factur-X PDF file of up to 4 MB. Up to five checks per day are available for an internet connection. The file is encrypted during transfer, processed briefly and then deleted.
Open the checker
Use the online validator to upload a file, inspect the result and download a technical report where available.