Evidence supporting the underlying immigrant classification, identity and civil documents for each person, and financial records establishing that the funds are lawfully held. Foreign-language documents ordinarily require full certified English translations rather than summaries.
Prepare the classification file first
The heaviest documentary work sits in the underlying classification, and it is the work most often deferred while people focus on the payment. Assemble it first. Alongside it, gather civil documents for every person who might be included: birth registrations, marriage records, and any decree affecting a relationship. Where a document is in a language other than English, the ordinary requirement is a complete translation with the translator's certification of competence and accuracy, and an abbreviated summary does not meet it. Financial documentation matters too, because a payment of this size will be examined for its source. Keep copies of everything submitted, dated, along with a record of when each official instruction was read, since a developing programme's requirements can be clarified between one step and the next.
Hypothetical example: A freelance film editor has accumulated earnings through several production companies and wants a clear record before considering a Gold Card payment. The first review should create a dated document list: current official programme page, applicable classification requirements, identity records, civil records, contracts, tax returns, invoices, account statements, and payment instructions. Contracts and tax filings settle income origin; bank records settle movement; the official receipt settles the gift transfer. Keep original digital files and preserve page dates because programme terms can change. Do not substitute a broker's checklist for official instructions, especially where it describes Gold Card as a routine visa or a private investment.