Person A and B are a couple living together.
Person A works full time.
Person B doesn't work but receives benefits as part of UC.
B drives a car, A doesn't. Car is used for shopping errands and to take A to and from work and take dc to and from school.
A funds the insuarance, MOT, etc. Both A and B fund petrol.
A funds school etc.
Both A and B fund food shopping. And utilities.
When A gets paid into their account by their employer, B says it's both of their money.
But whose money is it?