The interest would count as spend on ffp account.People confuse loans with losses. There is nothing to stop an owner loaning a billion to their club. They just wouldn't be able to spend it if it resulted in losses over the FFP limit. It's one of these red-herrings that City fans cling to when they discuss the allegations against us. Shouldn't, really.
Now I think about it, though, Mansour should put a billion into the club and let it earn interest. FFP problems with the PL solved in perpetuity ....