What formation documents do banks require?

U.S. banks and payment processors ask for a bundle of formation documents before opening a business account. Here is what OtoCo provides and where to find each item.

Documents banks commonly request

For OtoCo Instant / protected series

OtoCo Instant is legally a protected series under the Master — same legal form, not two products. Your series has no individual state-issued Certificate of Formation.

For Mercury, the Certificate of Formation is the Master Certificate of Formation (still labeled Certificate of Formation in the UI). Also attach:

• Operating Agreement
• EIN letter (when the $189 EIN add-on is complete)
• Physical address (anywhere — not registered agent) + proof (e.g. utility document in a member’s name)

A protected series added later under the same Master uses this same packet. Pasteable guide: Mercury Bank Documents.

For Standalone LLCs and BYOE

OtoCo attaches documents already on file — your uploaded state-issued Certificate of Formation for that entity, Operating Agreement, and EIN letter. Upload missing docs before applying to Mercury.

Helpful extras

• Certificate of Incumbency — template in Files & Templates for KYB
• Virtual Mailing Address ($249/yr) — optional U.S. mailing address; Mercury’s physical-address requirement can also be your own address where mail is received (see Mercury Bank Documents)

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