Provide the bank's authorization or clearance for the outbound transfer, the transfer instructions, statements on both sides showing the debit and credit, and any regulatory filing the transfer required. Add records of how the funds were earned or received originally. Missing pieces can often be obtained afterwards; flag them rather than substituting a summary letter.
Explain unusual routes in writing, in advance
Before routing money through another person or institution, obtain advice on whether that route complies with the bank’s terms and applicable transfer rules. Do not use a relative’s account merely to conceal the investor or evade a limit. If a lawful third-party route is used, preserve the real ownership, authorization, source and transfer records and disclose any actual gift or loan accurately.
The business stack shows what the money is buying and that it is a genuine going concern: three years of financial statements if available, tax returns, the payroll register, customer contracts, supplier agreements, the premises lease, licences and permits. Ask for the articles or formation documents, the current ownership register, titles and financing statements for vehicles and equipment, the premises lease with any landlord consent to assignment, the customer or service-maintenance contracts and their change-of-control clauses, and any insurance certificates and bonding.