Selling on asset store: Tax number question

Hi Guys
I really want to sell icon packs on the Asset Store, but when I set up a Payment Profile, it asks for a Tax Number. I'm don't have a company and acts as an individual, so I don't have that. I'm an EU citizen from Denmark and we have whats equal to a social security number which we use as a Personal Tax Identification Number when you don't have a company, but I can't use that when I'm trying to create a Payment Profile.

I hope someone can help me clarify this, is it really needed to start up a company?
Thanks!