What documentation do I need to open accounts for a Partnership? Two forms of identification for each signer on the account Partnership agreement Assignment of Tax ID/EIN or 1st two pages of recent tax return Have more questions? Submit a request 0 Comments Article is closed for comments. Related articles What documentation do I need to open accounts for a Corporation or Limited Liability Company? What documents do I need when applying for a credit card? I want to send a payment to another person instead of a bill. Can I do that?