There are several reasons why cats urinate in inappropriate places.
-Needs Training
If kitty is a new addition to the family, you may have to spend some time showing her where the litter box is and how to scratch around in it.
The little one won't know that's where you would prefer she go to the bathroom if you don't mention it.
While she is in training, keep the litter container in one location. This will help her get used to it and develop a routine.
-Painful Health Problem
It could be a health problem like UTI or Urinary Tract Infection. UTI makes it painful for him to pee anytime, so he may find it more comforting to urinate on something soft. Soft like the carpet, bed or laundry pile. (Of course the fresher the better).
Please see a animal health care professional and explain what's going on. The veterinarian will help tabby get relief and the proper care.
-Stress
Change causes stress. If you are moving, just moved or will move, this change is major to a cat. Spend time with her to reassure her.
Putting her in a separate area while all the commotion of moving is going on and relocating her to the new place after items have been put in place may help lessen the stress.
It will also work her nerves if the litter-box is in a busy area. If there is a lot of traffic and noise, she won't feel comfortable using the box and will find somewhere else to go.
-Marking
If you didn't thoroughly clean it, the area may have the scent of a previous weeing episode still lingering. If he can smell the old urine he will remember it as a relaxing place to pee.
Work with kitty to understand why he or she is doing this and you will be better able to adjust the behavior appropriately.