ESTABLISHING CONTROL
Now that he has started on shifting all financial control to you, you can start to treat him as a slave in earnest by instilling obedience and changing habits is usually done by a combination of rewards and punishment.
Praise: Praise can and should be given every time he does something to your satisfaction. Praise can be given in public in a socially acceptable way and in private by treating him like a beloved pet by patting him on the head, having him kiss your feet, etc.
The next controlling domains can be modified into rewards and or punishments, depending on how well your husband has performed.
Free Time: how he spends his free time is up to you. If he has been obedient and done all his tasks, you can treat him to a limited time where he gets to do an activity. Make sure he negotiates with you and gives you options. You ultimately decide how he spends his free time. It is important that free time is 
revoked when he has not been 100% obedient or dutiful. Instead of free time he has then earned corner time when he’s not working for you.
Food privileges: I suggest you control what he eats and ensure that the food is bland and tasteless. Even when dining in a restaurant. That way, you can give him a treat if he has obeyed you to your standards or punish him by ordering him to eat a dish he truly dislikes.
Drink privileges: slave husbands should be content with water. You can reward him with a soda if he’s been good or an alcoholic beverage if he has been especially good. If your slave husband has a humiliation fetish you could also reward him by having him drink his or your urine.
Fetish privileges: you can reward or punish your slave with pain. Some painful kinks will pleasurable to him, others will not. For instance, he might find 10 lashes of the crop sexually rewarding, but I doubt he will find 60 lashes with a crop exciting.