How can an individual entrepreneur legalize the withdrawal of money from a foreign freelance exchange through PayPal?

Question

Freelance

Good afternoon!

Tell me how an individual entrepreneur can legalize the withdrawal of money from a foreign freelance exchange that only supports Payoneer, PayPal and TransferWise, and does not provide any signed documents.

I understand correctly that this scheme cannot be applied: withdrawal to PayPal physical. persons -> settlement account in the bank of an individual -> display of this income in the tax reports of individual entrepreneurs for the payment of 6% according to the simplified tax system? Because there are no closing documents on these operations.

Thank you!