Which form is responsible for collecting and accounting for cash collections into the accounting system?

The correct choice is the DD1131 form, which is specifically utilized for documenting cash collections and is fundamental in the accounting process within the financial management framework. This form is designed to accurately record transactions involving cash receipts, ensuring that all cash collected is properly entered into the accounting system. By using this form, financial managers can track cash inflows, providing a clear audit trail necessary for accountability and transparency in financial operations.

Each form in the context of federal accounting and financial management serves different purposes. While the AF Form 406 is used for data pertaining to accountability of funds, it does not focus on the actual collection of cash. The OF 1017-G is primarily employed in the preparation of accounts payable and does not relate directly to cash collection. The SF 1164 is a request for reimbursement for expenses, which is also not intended for cash collection purposes. Therefore, the DD1131 stands out as the key form dedicated to recording and accounting for cash collections accurately, reinforcing its significance in financial accountability.