how many litter boxes do you have? i read somewhere on the vet forum that you are supposed to have one per cat plus an extra. Thus you should have 4! I only use a litter box in the winter ( my cats go out in summer, but dont always want to go out in the snow). my cat peed in my other cats box so he pooped in my shower! They are really clean animals i guess....and really frustrating at times too! ha sp
If the cat is not neutered, or fixed, then the problems will persist. Also, the cat needs to be taken to a vet as soon as possible. Peeing outside the box can be caused by health issues. The cat may be in pain and you don't even know.
Lastly, I would not discipline the cat in a harsh way because, if the cat is in pain, then the stress of the punishment will make it all even worse.
Good Luck
I had a male cat that did the same thing. He was acting out trying to communicate his needs to me which was to be let outside. He had been an inside cat his whole life and he just wanted more freedom. After we allowed him out he stopped all wierd behavior, including chewing off his hair and peeing everywhere. I mean it just totally stopped. To be honest I tossed his *** outside because I had had enough, but it was the right move and we all live in peace now. Hope this helps.
Is he neutured? If a male cat is neutured to late, they will often start spraying and once they start I understand it can be difficult to get them to stop. Have you called your vet to ask if they can recommend something?
I'm sure someone with more knowledge than me in this area can help - just hang tight!
Good luck,
Janet