You can deduct all costs incurred in connection with your training as training expenses. This includes in particular participation fees and learning materials.
You can deduct these fees in full. If you purchase items for the training, you can deduct them as work-related items. This includes, for example:
In our opinion, the new home office allowance of 5 Euro per day (max. 600 Euro) is also available to those who are studying, training or furthering their education and are currently learning more at their home PC than in lectures or classroom-based courses.