Required Business Documents

If you are applying for a business account at TwinStar, you will need the following documents to get started.

Sole Proprietor

  • Electronic Business License(s): Available for viewing on the Dept. of Licensing website.
    (Where to get a copy)

Partnership (General, LLP, LTD)

Formation Document

  • Partnership Agreement Signed by all Partners

Corporation (For profit (S-Corp, C-Corp) or Non-Profit 501(c)3)

Formation Document: Signed by all Owners

  • Articles of Incorporation listing roles and designating who is able to conduct financial decisions (Include filing date stamp if using State provided format)
  • Meeting Minutes/Letter of Authorization directing specific people to act as Responsible Individual or Authorized Signer (if not specified in Articles of Incorporation)

Limited Liability Company (LLC)

Formation Document: Signed by all Owners

  • Operating Agreement, Certificate of Formation* or Articles of Organization* listing roles and designating who can conduct financial decisions such as account opening.
  • *Includes filing date stamp from state & lists owner's names


Need to get a copy of your Electronic Business License?

Washington Department of Licensing

Washington Department or Revenue

Oregon Secretary of State


Some Business types are not listed here. Please contact us for more information.

Other documents such as picture identification, business physical address, physical address of all signers and social security numbers of all signers will be requested at the time of account opening.

New Rules Under the Bank Secrecy Act

Your business relationship is important to us. Our goal is to make business account processes as efficient as possible. Effective May 11, 2018, all financial institutions will be subject to new rules under the Bank Secrecy Act to aid the government in fighting financial crimes. The new rules combat terrorism and other national security threats.

EACH time an account is opened or services are added on behalf of a covered Legal Entity,* we will be required to ask you for identifying information (name, address, date of birth, social security number) as well as identification documentation for:

  • EACH individual that has 25% or more Beneficial Ownership in the Legal Entity; and
  • ONE individual that has Significant Managerial Control or is the chief governing officer of the Legal Entity.

If you are opening an account or adding additional services on behalf of a Legal Entity, you will be required to provide appropriate documentation and to certify that this information is true and accurate to the best of your knowledge. To make this process as efficient as possible, we suggest you obtain the above information, along with a copy of the current Driver’s License or government-issued ID, for EACH identified individual.

If you have any questions, please contact us.

* Legal Entities include Limited Liability Company (LLC), For-Profit Corporation, Partnership.