Colphax wrote:
In all likelihood, she's stressed by the move. Not being able to go outside as much as she was used to probably is a big stressor.
First thing is to take her to the vet and get her checked out, to make sure there's no medical reason behind the letterbox behavior change.
If she's clear that way, you'll need to re-train her to only use the litterbox. This could be a long process. Start with looking at the litter you are using. If it smells pretty to you, it may not smell as nice to her. I've had success with Cat Attract litter when I had to do this. It's designed to be more attractive to cats, and each package comes with a little pamphlet about litterbox problems and retraining. It may be that using the litter (and being really good with cleaning the box) will be enough to fix her problem, but if not, then you will need to isolate her in a single room so that her only option is the litterbox. It's possible that she may need to stay in that room for a while, so that she gets used to using the box again. Once she's doing better, then you can start letting her have the run of the house again, a little at a time. (this is all covered in greater detail in the pamphlet).
It took a long time to get my cat to be good again...but he had a lot longer time where I was trying other stuff that didn't work before. You're most likely in a better place since her behavior change is relatively newer. Good luck!
The more recent move may be stressing her, but it has nothing to do with less time outside- we moved from the country to the city 2 years ago, and she took that change fine. The more recent move was actually to a place that we can let her out some.
That, and the pooping outside the litterbox started a few weeks before this most recent move.
It's not likely a medical problem- doesn't fit any of the usual symptoms (unusual spots, incontinence), nor does she have any of the usual symptoms of any of the related conditions (kidney problems, bladder infection, etc.) It's a decent idea, though.