Financial dependency

[Outlander]

How do I show financial dependancy. I have been living with my partner for 2.5 years. I go on visitor entry stamps when stamp expires I go out of his country and come back with a new stamp. On visitor stamps I wasn't allowed to work so I didn't break the law. I get rental income from my house in Canada so income was never an issue for me. He does his business. He cannot open an account because he is out of status in the residency country. For all household expenses because he earns in pounds we pay by his money. I stay home and cook and clean and take care of him. All his money we keep at one place and use for household expenses. Now because he cannot have a bank account or credit card. How do we show financial dependency on each other. Please help.