Hi @Giannis83
This article on Tax data sharing under DAC7 has some FAQs that might be helpful here:
Is it mandatory for me to provide the LRN of the property?
For hosts with listings in the EU (excluding Ireland), if you have the LRN you are required to provide it when it’s available. However, if you do not have the LRN, you can still submit your tax information without it.
Will failing to provide the LRN affect my ability to host or receive payments on Airbnb?
No. If you do not have the LRN for your property, you can continue hosting and receiving payments as normal on the Airbnb platform.
Please let us know how you get on with the system as it develops in Santorini! I'm sure other Hosts will be eager to hear your experience.