airbnb asking for a guest Social Security number

[Dan-and-Pam0]

I have a request from a guest that has stayed with us before.  I sent an offer to her, and when she went to accept and book, airbnb asked for her social security number.  She stated that it had not asked for that before.  What's going on?

[Brian187]

did you ever find out, i am having same problem

[Mark-And-Kathleen0]

I know when i join Airbnb i put my husband SS down for tax purposes.  Where is it?

[Nutjarin0]

one of my return guest is having this issue now. Contacted Airbnb and they said its a setting but I don't see one in the booking settings

Any help will be great