Answer
Yes, to document income for immigration purposes, you may need to show that foreign income has been credited to a bank account in Uruguay. What matters is not simply an amount held somewhere abroad, but a clear flow of funds that can be linked to the stated income and the account holder.
If the income comes from a foreign employer or client, you would usually prepare a contract, certificate, payment documents, and bank statements. The recipient’s name, frequency, and amounts must be consistent across them. It is better to separate transfers between your own accounts from actual income to avoid presenting savings as regular income.
At the same time, a bank transfer itself does not resolve tax issues or turn capital into earnings. It serves as proof of the movement of funds. Before making a transfer, it is worth ensuring that the bank will accept the money, may request proof of origin, and will issue a statement suitable for further use.