Match the request to the applicant, official stage, amount and recipient before acting. A receipt alone does not show what was approved.
Keep the notice and transaction together
Retain the complete official instruction, any reference number and the payment confirmation. The processing fee is nonrefundable, while the gift follows successful vetting and official instructions. Clarify discrepancies through the proper channel instead of using a third-party summary as proof of either eligibility or a decision.
A dated printout of the official page and FAQ, identity and civil documents for every included person, a complete source-of-funds file for the gift, a record of all prior U.S. travel and immigration history, and preliminary tax advice. Collect identity and family relationship records, a clear description of the specific proposal under consideration, and any open questions about eligibility, funding and the current official instructions, then follow the government's stated next steps for forms and evidence. The review should separate identity and civil documents, underlying immigrant-category evidence, employer sponsorship terms, official notices, payment source records and confirmations. The official USCIS instructions govern the supporting documents required in the case; these preparatory records help explain the actual funding arrangement rather than constitute a universal mandatory checklist. If a corporation plans to make a payment, preserve the corporate authorization and any written terms, while recognizing that private documents do not displace government screening or eligibility rules.