We've created this Forum Thread with some workarounds and advice to assist you in publishing you ebook.
Tax for non US Residents
Hoping someone can give me some advice on this. I don't get much revenue from lulu despite having been a member for about a year, but I'm due a payment soon and I see it says that the amount is subject to tax withstanding. I'm UK based and have already sorted out my IRS tax exemption thingy and got my EIN number so I don't get taxed on Kindle sales, but I don't think lulu has this number. How can I tell them that I'm exempt or find out if they already know this?