For companies with employees, that is IRS Forms 940 and 941.
For Sole Props that is your IRS Form 1040 and Schedule-C.
The IRS likely has the banking information for your company (or your payroll processor) and if they don't they have your business address, and could cut checks like they do EVERY YEAR.
Claiming that a bank has to be there to process the paperwork is just plain ignorant of the amount of information the IRS already requires from companies on a quarterly and yearly basis.
The banks are doing jack shit in terms of useful work except shoveling application's SBA's way, with the SBA being the ultimate approver of the loan anyway! Bank are just in middle and limiting applications to their existing customers for no good reason whatsoever.