What do I need to sign up?

Very little on day one: your work email, your name, your company name and its country. You pay first and then upload the paperwork at your own pace inside your account.

What we will ask for during onboarding: - an extract from your commercial register, or your formation document (a scan is normally enough; a paper that is not in German may need a translation; a plain translation is normally enough, and we check what your tax office needs) - a passport or ID copy of the managing director - a power of attorney (Vollmacht): we prefill it, you print it, sign it by hand and upload it - your marketplace accounts and web shop, if any (the names are enough) - your existing German tax number (Steuernummer), if you already have one - for a new registration: what you sell, to whom, and where the goods move

Nothing has to be ready before you pay.