Build a traceable account connecting relevant income records, deposits and later transfers. A salary total and a final bank statement may leave the intervening path unexplained.
Reconcile material changes in the account
Identify employers, currencies and significant non-salary receipts rather than calling every deposit earnings. Explain gaps and retain underlying records; do not invent a universal number of years or documents without assessing the actual requirement. Joint contributions should be attributed accurately. The evidence should make the lawful accumulation and movement of the capital understandable without rewriting ordinary household spending as investment capital.
The useful file is a chronology, not a pile of selected papers: identify the author, date, purpose, and point each record actually establishes. The review must account for capital that remains at risk, the required job creation, and the later conditional-residence stage. A projected return or a successful first petition does not eliminate the evidence needed after conditional residence begins. Hypothetical example: a dealer in rare botanical prints receives several instalments for a collection sale and retains only the final bank balance.
A missing primary record should be obtained or candidly explained before the file is used.